diff options
Diffstat (limited to 'mesalib/src/mesa')
| -rw-r--r-- | mesalib/src/mesa/main/extensions.c | 1830 | ||||
| -rw-r--r-- | mesalib/src/mesa/main/fbobject.c | 4973 | ||||
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c | 2 | ||||
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_bitmap.c | 4 | ||||
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_drawpixels.c | 2 | ||||
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_texture.c | 4054 | ||||
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_gen_mipmap.c | 1 | ||||
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_texture.c | 94 | ||||
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_texture.h | 456 |
9 files changed, 5763 insertions, 5653 deletions
diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c index aaef337ac..9f58b45e2 100644 --- a/mesalib/src/mesa/main/extensions.c +++ b/mesalib/src/mesa/main/extensions.c @@ -1,915 +1,915 @@ -/* - * Mesa 3-D graphics library - * Version: 7.6 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file - * \brief Extension handling - */ - - -#include "glheader.h" -#include "imports.h" -#include "context.h" -#include "extensions.h" -#include "mfeatures.h" -#include "mtypes.h" - -enum { - DISABLE = 0, - GL = 1 << API_OPENGL, - ES1 = 1 << API_OPENGLES, - ES2 = 1 << API_OPENGLES2, -}; - -/** - * \brief An element of the \c extension_table. - */ -struct extension { - /** Name of extension, such as "GL_ARB_depth_clamp". */ - const char *name; - - /** Offset (in bytes) of the corresponding member in struct gl_extensions. */ - size_t offset; - - /** Set of API's in which the extension exists, as a bitset. */ - uint8_t api_set; -}; - - -/** - * Given a member \c x of struct gl_extensions, return offset of - * \c x in bytes. - */ -#define o(x) offsetof(struct gl_extensions, x) - - -/** - * \brief Table of supported OpenGL extensions for all API's. - * - * Note: The GL_MESAX_* extensions are placeholders for future ARB extensions. - */ -static const struct extension extension_table[] = { - /* ARB Extensions */ - { "GL_ARB_ES2_compatibility", o(ARB_ES2_compatibility), GL }, - { "GL_ARB_blend_func_extended", o(ARB_blend_func_extended), GL }, - { "GL_ARB_copy_buffer", o(ARB_copy_buffer), GL }, - { "GL_ARB_depth_buffer_float", o(ARB_depth_buffer_float), GL }, - { "GL_ARB_depth_clamp", o(ARB_depth_clamp), GL }, - { "GL_ARB_depth_texture", o(ARB_depth_texture), GL }, - { "GL_ARB_draw_buffers", o(ARB_draw_buffers), GL }, - { "GL_ARB_draw_buffers_blend", o(ARB_draw_buffers_blend), GL }, - { "GL_ARB_draw_elements_base_vertex", o(ARB_draw_elements_base_vertex), GL }, - { "GL_ARB_draw_instanced", o(ARB_draw_instanced), GL }, - { "GL_ARB_explicit_attrib_location", o(ARB_explicit_attrib_location), GL }, - { "GL_ARB_fragment_coord_conventions", o(ARB_fragment_coord_conventions), GL }, - { "GL_ARB_fragment_program", o(ARB_fragment_program), GL }, - { "GL_ARB_fragment_program_shadow", o(ARB_fragment_program_shadow), GL }, - { "GL_ARB_fragment_shader", o(ARB_fragment_shader), GL }, - { "GL_ARB_framebuffer_object", o(ARB_framebuffer_object), GL }, - { "GL_ARB_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL }, - { "GL_ARB_half_float_pixel", o(ARB_half_float_pixel), GL }, - { "GL_ARB_half_float_vertex", o(ARB_half_float_vertex), GL }, - { "GL_ARB_instanced_arrays", o(ARB_instanced_arrays), GL }, - { "GL_ARB_map_buffer_range", o(ARB_map_buffer_range), GL }, - { "GL_ARB_multisample", o(ARB_multisample), GL }, - { "GL_ARB_multitexture", o(ARB_multitexture), GL }, - { "GL_ARB_occlusion_query2", o(ARB_occlusion_query2), GL }, - { "GL_ARB_occlusion_query", o(ARB_occlusion_query), GL }, - { "GL_ARB_pixel_buffer_object", o(EXT_pixel_buffer_object), GL }, - { "GL_ARB_point_parameters", o(EXT_point_parameters), GL }, - { "GL_ARB_point_sprite", o(ARB_point_sprite), GL }, - { "GL_ARB_provoking_vertex", o(EXT_provoking_vertex), GL }, - { "GL_ARB_sampler_objects", o(ARB_sampler_objects), GL }, - { "GL_ARB_seamless_cube_map", o(ARB_seamless_cube_map), GL }, - { "GL_ARB_shader_objects", o(ARB_shader_objects), GL }, - { "GL_ARB_shader_stencil_export", o(ARB_shader_stencil_export), GL }, - { "GL_ARB_shading_language_100", o(ARB_shading_language_100), GL }, - { "GL_ARB_shadow_ambient", o(ARB_shadow_ambient), GL }, - { "GL_ARB_shadow", o(ARB_shadow), GL }, - { "GL_ARB_sync", o(ARB_sync), GL }, - { "GL_ARB_texture_border_clamp", o(ARB_texture_border_clamp), GL }, - { "GL_ARB_texture_buffer_object", o(ARB_texture_buffer_object), GL }, - { "GL_ARB_texture_compression", o(ARB_texture_compression), GL }, - { "GL_ARB_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL }, - { "GL_ARB_texture_cube_map", o(ARB_texture_cube_map), GL }, - { "GL_ARB_texture_env_add", o(EXT_texture_env_add), GL }, - { "GL_ARB_texture_env_combine", o(ARB_texture_env_combine), GL }, - { "GL_ARB_texture_env_crossbar", o(ARB_texture_env_crossbar), GL }, - { "GL_ARB_texture_env_dot3", o(ARB_texture_env_dot3), GL }, - { "GL_ARB_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL }, - { "GL_ARB_texture_multisample", o(ARB_texture_multisample), GL }, - { "GL_ARB_texture_non_power_of_two", o(ARB_texture_non_power_of_two), GL }, - { "GL_ARB_texture_rectangle", o(NV_texture_rectangle), GL }, - { "GL_ARB_texture_rgb10_a2ui", o(ARB_texture_rgb10_a2ui), GL }, - { "GL_ARB_texture_rg", o(ARB_texture_rg), GL }, - { "GL_ARB_texture_swizzle", o(EXT_texture_swizzle), GL }, - { "GL_ARB_transform_feedback2", o(ARB_transform_feedback2), GL }, - { "GL_ARB_transpose_matrix", o(ARB_transpose_matrix), GL }, - { "GL_ARB_uniform_buffer_object", o(ARB_uniform_buffer_object), GL }, - { "GL_ARB_vertex_array_bgra", o(EXT_vertex_array_bgra), GL }, - { "GL_ARB_vertex_array_object", o(ARB_vertex_array_object), GL }, - { "GL_ARB_vertex_buffer_object", o(ARB_vertex_buffer_object), GL }, - { "GL_ARB_vertex_program", o(ARB_vertex_program), GL }, - { "GL_ARB_vertex_shader", o(ARB_vertex_shader), GL }, - { "GL_ARB_vertex_type_2_10_10_10_rev", o(ARB_vertex_type_2_10_10_10_rev), GL }, - { "GL_ARB_window_pos", o(ARB_window_pos), GL }, - - /* EXT extensions */ - { "GL_EXT_abgr", o(EXT_abgr), GL }, - { "GL_EXT_bgra", o(EXT_bgra), GL }, - { "GL_EXT_blend_color", o(EXT_blend_color), GL }, - { "GL_EXT_blend_equation_separate", o(EXT_blend_equation_separate), GL }, - { "GL_EXT_blend_func_separate", o(EXT_blend_func_separate), GL }, - { "GL_EXT_blend_logic_op", o(EXT_blend_logic_op), GL }, - { "GL_EXT_blend_minmax", o(EXT_blend_minmax), GL | ES1 | ES2 }, - { "GL_EXT_blend_subtract", o(EXT_blend_subtract), GL }, - { "GL_EXT_clip_volume_hint", o(EXT_clip_volume_hint), GL }, - { "GL_EXT_compiled_vertex_array", o(EXT_compiled_vertex_array), GL }, - { "GL_EXT_copy_texture", o(EXT_copy_texture), GL }, - { "GL_EXT_depth_bounds_test", o(EXT_depth_bounds_test), GL }, - { "GL_EXT_draw_buffers2", o(EXT_draw_buffers2), GL }, - { "GL_EXT_draw_instanced", o(ARB_draw_instanced), GL }, - { "GL_EXT_draw_range_elements", o(EXT_draw_range_elements), GL }, - { "GL_EXT_fog_coord", o(EXT_fog_coord), GL }, - { "GL_EXT_framebuffer_blit", o(EXT_framebuffer_blit), GL }, - { "GL_EXT_framebuffer_multisample", o(EXT_framebuffer_multisample), GL }, - { "GL_EXT_framebuffer_object", o(EXT_framebuffer_object), GL }, - { "GL_EXT_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL }, - { "GL_EXT_gpu_program_parameters", o(EXT_gpu_program_parameters), GL }, - { "GL_EXT_gpu_shader4", o(EXT_gpu_shader4), GL }, - { "GL_EXT_multi_draw_arrays", o(EXT_multi_draw_arrays), GL | ES1 | ES2 }, - { "GL_EXT_packed_depth_stencil", o(EXT_packed_depth_stencil), GL }, - { "GL_EXT_packed_float", o(EXT_packed_float), GL }, - { "GL_EXT_packed_pixels", o(EXT_packed_pixels), GL }, - { "GL_EXT_paletted_texture", o(EXT_paletted_texture), GL }, - { "GL_EXT_pixel_buffer_object", o(EXT_pixel_buffer_object), GL }, - { "GL_EXT_point_parameters", o(EXT_point_parameters), GL }, - { "GL_EXT_polygon_offset", o(EXT_polygon_offset), GL }, - { "GL_EXT_provoking_vertex", o(EXT_provoking_vertex), GL }, - { "GL_EXT_rescale_normal", o(EXT_rescale_normal), GL }, - { "GL_EXT_secondary_color", o(EXT_secondary_color), GL }, - { "GL_EXT_separate_shader_objects", o(EXT_separate_shader_objects), GL }, - { "GL_EXT_separate_specular_color", o(EXT_separate_specular_color), GL }, - { "GL_EXT_shadow_funcs", o(EXT_shadow_funcs), GL }, - { "GL_EXT_shared_texture_palette", o(EXT_shared_texture_palette), GL }, - { "GL_EXT_stencil_two_side", o(EXT_stencil_two_side), GL }, - { "GL_EXT_stencil_wrap", o(EXT_stencil_wrap), GL }, - { "GL_EXT_subtexture", o(EXT_subtexture), GL }, - { "GL_EXT_texture3D", o(EXT_texture3D), GL }, - { "GL_EXT_texture_array", o(EXT_texture_array), GL }, - { "GL_EXT_texture_compression_dxt1", o(EXT_texture_compression_s3tc), GL | ES1 | ES2 }, - { "GL_EXT_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL }, - { "GL_EXT_texture_compression_s3tc", o(EXT_texture_compression_s3tc), GL }, - { "GL_EXT_texture_cube_map", o(ARB_texture_cube_map), GL }, - { "GL_EXT_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL }, - { "GL_EXT_texture_env_add", o(EXT_texture_env_add), GL }, - { "GL_EXT_texture_env_combine", o(EXT_texture_env_combine), GL }, - { "GL_EXT_texture_env_dot3", o(EXT_texture_env_dot3), GL }, - { "GL_EXT_texture_filter_anisotropic", o(EXT_texture_filter_anisotropic), GL | ES1 | ES2 }, - { "GL_EXT_texture_format_BGRA8888", o(EXT_texture_format_BGRA8888), ES1 | ES2 }, - { "GL_EXT_texture_integer", o(EXT_texture_integer), GL }, - { "GL_EXT_texture_lod_bias", o(EXT_texture_lod_bias), GL | ES1 }, - { "GL_EXT_texture_mirror_clamp", o(EXT_texture_mirror_clamp), GL }, - { "GL_EXT_texture_object", o(EXT_texture_object), GL }, - { "GL_EXT_texture", o(EXT_texture), GL }, - { "GL_EXT_texture_rectangle", o(NV_texture_rectangle), GL }, - { "GL_EXT_texture_shared_exponent", o(EXT_texture_shared_exponent), GL }, - { "GL_EXT_texture_sRGB", o(EXT_texture_sRGB), GL }, - { "GL_EXT_texture_sRGB_decode", o(EXT_texture_sRGB_decode), GL }, - { "GL_EXT_texture_swizzle", o(EXT_texture_swizzle), GL }, - { "GL_EXT_texture_type_2_10_10_10_REV", o(dummy_true), ES2 }, - { "GL_EXT_timer_query", o(EXT_timer_query), GL }, - { "GL_EXT_transform_feedback", o(EXT_transform_feedback), GL }, - { "GL_EXT_vertex_array_bgra", o(EXT_vertex_array_bgra), GL }, - { "GL_EXT_vertex_array", o(EXT_vertex_array), GL }, - { "GL_EXT_vertex_array_set", o(EXT_vertex_array_set), GL }, - - /* OES extensions */ - { "GL_OES_blend_equation_separate", o(EXT_blend_equation_separate), ES1 }, - { "GL_OES_blend_func_separate", o(EXT_blend_func_separate), ES1 }, - { "GL_OES_blend_subtract", o(EXT_blend_subtract), ES1 }, - { "GL_OES_byte_coordinates", o(dummy_true), ES1 }, - { "GL_OES_compressed_paletted_texture", o(dummy_false), DISABLE }, - { "GL_OES_depth24", o(EXT_framebuffer_object), ES1 | ES2 }, - { "GL_OES_depth32", o(dummy_false), DISABLE }, - { "GL_OES_depth_texture", o(ARB_depth_texture), ES2 }, -#if FEATURE_OES_draw_texture - { "GL_OES_draw_texture", o(OES_draw_texture), ES1 | ES2 }, -#endif -#if FEATURE_OES_EGL_image - /* FIXME: Mesa expects GL_OES_EGL_image to be available in OpenGL contexts. */ - { "GL_OES_EGL_image", o(OES_EGL_image), GL | ES1 | ES2 }, -#endif - { "GL_OES_element_index_uint", o(EXT_vertex_array), ES1 | ES2 }, - { "GL_OES_fbo_render_mipmap", o(EXT_framebuffer_object), ES1 | ES2 }, - { "GL_OES_fixed_point", o(dummy_true), ES1 }, - { "GL_OES_framebuffer_object", o(EXT_framebuffer_object), ES1 }, - { "GL_OES_mapbuffer", o(ARB_vertex_buffer_object), ES1 | ES2 }, - { "GL_OES_matrix_get", o(dummy_true), ES1 }, - { "GL_OES_packed_depth_stencil", o(EXT_packed_depth_stencil), ES1 | ES2 }, - { "GL_OES_point_size_array", o(dummy_true), ES1 }, - { "GL_OES_point_sprite", o(ARB_point_sprite), ES1 }, - { "GL_OES_query_matrix", o(dummy_true), ES1 }, - { "GL_OES_read_format", o(OES_read_format), GL | ES1 }, - { "GL_OES_rgb8_rgba8", o(EXT_framebuffer_object), ES1 | ES2 }, - { "GL_OES_single_precision", o(dummy_true), ES1 }, - { "GL_OES_standard_derivatives", o(OES_standard_derivatives), ES2 }, - { "GL_OES_stencil1", o(dummy_false), DISABLE }, - { "GL_OES_stencil4", o(dummy_false), DISABLE }, - { "GL_OES_stencil8", o(EXT_framebuffer_object), ES1 | ES2 }, - { "GL_OES_stencil_wrap", o(EXT_stencil_wrap), ES1 }, - /* GL_OES_texture_3D is disabled due to missing GLSL support. */ - { "GL_OES_texture_3D", o(EXT_texture3D), DISABLE }, - { "GL_OES_texture_cube_map", o(ARB_texture_cube_map), ES1 }, - { "GL_OES_texture_env_crossbar", o(ARB_texture_env_crossbar), ES1 }, - { "GL_OES_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), ES1 }, - { "GL_OES_texture_npot", o(ARB_texture_non_power_of_two), ES2 }, - - /* Vendor extensions */ - { "GL_3DFX_texture_compression_FXT1", o(TDFX_texture_compression_FXT1), GL }, - { "GL_AMD_conservative_depth", o(AMD_conservative_depth), GL | ES2 }, - { "GL_APPLE_client_storage", o(APPLE_client_storage), GL }, - { "GL_APPLE_object_purgeable", o(APPLE_object_purgeable), GL }, - { "GL_APPLE_packed_pixels", o(APPLE_packed_pixels), GL }, - { "GL_APPLE_vertex_array_object", o(APPLE_vertex_array_object), GL }, - { "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL }, - { "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GL }, - { "GL_ATI_fragment_shader", o(ATI_fragment_shader), GL }, - { "GL_ATI_separate_stencil", o(ATI_separate_stencil), GL }, - { "GL_ATI_texture_env_combine3", o(ATI_texture_env_combine3), GL }, - { "GL_ATI_texture_mirror_once", o(ATI_texture_mirror_once), GL }, - { "GL_IBM_multimode_draw_arrays", o(IBM_multimode_draw_arrays), GL }, - { "GL_IBM_rasterpos_clip", o(IBM_rasterpos_clip), GL }, - { "GL_IBM_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL }, - { "GL_INGR_blend_func_separate", o(EXT_blend_func_separate), GL }, - { "GL_MESA_pack_invert", o(MESA_pack_invert), GL }, - { "GL_MESA_resize_buffers", o(MESA_resize_buffers), GL }, - { "GL_MESA_texture_array", o(MESA_texture_array), GL }, - { "GL_MESA_texture_signed_rgba", o(MESA_texture_signed_rgba), GL }, - { "GL_MESA_window_pos", o(ARB_window_pos), GL }, - { "GL_MESAX_texture_float", o(ARB_texture_float), GL }, - { "GL_MESA_ycbcr_texture", o(MESA_ycbcr_texture), GL }, - { "GL_NV_blend_square", o(NV_blend_square), GL }, - { "GL_NV_conditional_render", o(NV_conditional_render), GL }, - { "GL_NV_depth_clamp", o(ARB_depth_clamp), GL }, - { "GL_NV_fragment_program", o(NV_fragment_program), GL }, - { "GL_NV_fragment_program_option", o(NV_fragment_program_option), GL }, - { "GL_NV_light_max_exponent", o(NV_light_max_exponent), GL }, - { "GL_NV_packed_depth_stencil", o(EXT_packed_depth_stencil), GL }, - { "GL_NV_point_sprite", o(NV_point_sprite), GL }, - { "GL_NV_primitive_restart", o(NV_primitive_restart), GL }, - { "GL_NV_texgen_reflection", o(NV_texgen_reflection), GL }, - { "GL_NV_texture_env_combine4", o(NV_texture_env_combine4), GL }, - { "GL_NV_texture_rectangle", o(NV_texture_rectangle), GL }, - { "GL_NV_vertex_program1_1", o(NV_vertex_program1_1), GL }, - { "GL_NV_vertex_program", o(NV_vertex_program), GL }, - { "GL_S3_s3tc", o(S3_s3tc), GL }, - { "GL_SGIS_generate_mipmap", o(SGIS_generate_mipmap), GL }, - { "GL_SGIS_texture_border_clamp", o(ARB_texture_border_clamp), GL }, - { "GL_SGIS_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL }, - { "GL_SGIS_texture_lod", o(SGIS_texture_lod), GL }, - { "GL_SGI_texture_color_table", o(SGI_texture_color_table), GL }, - { "GL_SUN_multi_draw_arrays", o(EXT_multi_draw_arrays), GL }, - - { 0, 0, 0 }, -}; - - -/** - * Given an extension name, lookup up the corresponding member of struct - * gl_extensions and return that member's offset (in bytes). If the name is - * not found in the \c extension_table, return 0. - * - * \param name Name of extension. - * \return Offset of member in struct gl_extensions. - */ -static size_t -name_to_offset(const char* name) -{ - const struct extension *i; - - if (name == 0) - return 0; - - for (i = extension_table; i->name != 0; ++i) { - if (strcmp(name, i->name) == 0) - return i->offset; - } - - return 0; -} - - -/** - * \brief Extensions enabled by default. - * - * These extensions are enabled by _mesa_init_extensions(). - * - * XXX: Should these defaults also apply to GLES? - */ -static const size_t default_extensions[] = { - o(ARB_copy_buffer), - o(ARB_draw_buffers), - o(ARB_multisample), - o(ARB_texture_compression), - o(ARB_transpose_matrix), - o(ARB_vertex_buffer_object), - o(ARB_window_pos), - - o(EXT_abgr), - o(EXT_bgra), - o(EXT_compiled_vertex_array), - o(EXT_copy_texture), - o(EXT_draw_range_elements), - o(EXT_multi_draw_arrays), - o(EXT_packed_pixels), - o(EXT_polygon_offset), - o(EXT_rescale_normal), - o(EXT_separate_specular_color), - o(EXT_subtexture), - o(EXT_texture), - o(EXT_texture3D), - o(EXT_texture_object), - o(EXT_vertex_array), - - o(OES_read_format), - o(OES_standard_derivatives), - - /* Vendor Extensions */ - o(APPLE_packed_pixels), - o(IBM_multimode_draw_arrays), - o(IBM_rasterpos_clip), - o(NV_light_max_exponent), - o(NV_texgen_reflection), - o(SGIS_generate_mipmap), - o(SGIS_texture_edge_clamp), - o(SGIS_texture_lod), - - 0, -}; - - -/** - * Enable all extensions suitable for a software-only renderer. - * This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc. - */ -void -_mesa_enable_sw_extensions(struct gl_context *ctx) -{ - /*ctx->Extensions.ARB_copy_buffer = GL_TRUE;*/ - ctx->Extensions.ARB_depth_clamp = GL_TRUE; - ctx->Extensions.ARB_depth_texture = GL_TRUE; - /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/ - ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE; - ctx->Extensions.ARB_draw_instanced = GL_TRUE; - ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE; - ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE; -#if FEATURE_ARB_fragment_program - ctx->Extensions.ARB_fragment_program = GL_TRUE; - ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE; -#endif -#if FEATURE_ARB_fragment_shader - ctx->Extensions.ARB_fragment_shader = GL_TRUE; -#endif -#if FEATURE_ARB_framebuffer_object - ctx->Extensions.ARB_framebuffer_object = GL_TRUE; -#endif -#if FEATURE_ARB_geometry_shader4 && 0 - /* XXX re-enable when GLSL compiler again supports geometry shaders */ - ctx->Extensions.ARB_geometry_shader4 = GL_TRUE; -#endif - ctx->Extensions.ARB_half_float_pixel = GL_TRUE; - ctx->Extensions.ARB_half_float_vertex = GL_TRUE; - ctx->Extensions.ARB_map_buffer_range = GL_TRUE; - ctx->Extensions.ARB_multitexture = GL_TRUE; -#if FEATURE_queryobj - ctx->Extensions.ARB_occlusion_query = GL_TRUE; - ctx->Extensions.ARB_occlusion_query2 = GL_TRUE; -#endif - ctx->Extensions.ARB_point_sprite = GL_TRUE; -#if FEATURE_ARB_shader_objects - ctx->Extensions.ARB_shader_objects = GL_TRUE; - ctx->Extensions.EXT_separate_shader_objects = GL_TRUE; -#endif -#if FEATURE_ARB_shading_language_100 - ctx->Extensions.ARB_shading_language_100 = GL_TRUE; -#endif - ctx->Extensions.ARB_shadow = GL_TRUE; - ctx->Extensions.ARB_shadow_ambient = GL_TRUE; - ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; - ctx->Extensions.ARB_texture_cube_map = GL_TRUE; - ctx->Extensions.ARB_texture_env_combine = GL_TRUE; - ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; - ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; - /*ctx->Extensions.ARB_texture_float = GL_TRUE;*/ - ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; - ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; - ctx->Extensions.ARB_texture_rg = GL_TRUE; - ctx->Extensions.ARB_vertex_array_object = GL_TRUE; -#if FEATURE_ARB_vertex_program - ctx->Extensions.ARB_vertex_program = GL_TRUE; -#endif -#if FEATURE_ARB_vertex_shader - ctx->Extensions.ARB_vertex_shader = GL_TRUE; -#endif -#if FEATURE_ARB_vertex_buffer_object - /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/ -#endif -#if FEATURE_ARB_sync - ctx->Extensions.ARB_sync = GL_TRUE; -#endif - ctx->Extensions.APPLE_vertex_array_object = GL_TRUE; -#if FEATURE_APPLE_object_purgeable - ctx->Extensions.APPLE_object_purgeable = GL_TRUE; -#endif - ctx->Extensions.ATI_envmap_bumpmap = GL_TRUE; -#if FEATURE_ATI_fragment_shader - ctx->Extensions.ATI_fragment_shader = GL_TRUE; -#endif - ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE; - ctx->Extensions.ATI_texture_mirror_once = GL_TRUE; - ctx->Extensions.ATI_separate_stencil = GL_TRUE; - ctx->Extensions.EXT_blend_color = GL_TRUE; - ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; - ctx->Extensions.EXT_blend_func_separate = GL_TRUE; - ctx->Extensions.EXT_blend_logic_op = GL_TRUE; - ctx->Extensions.EXT_blend_minmax = GL_TRUE; - ctx->Extensions.EXT_blend_subtract = GL_TRUE; - ctx->Extensions.EXT_depth_bounds_test = GL_TRUE; - ctx->Extensions.EXT_draw_buffers2 = GL_TRUE; - ctx->Extensions.EXT_fog_coord = GL_TRUE; -#if FEATURE_EXT_framebuffer_object - ctx->Extensions.EXT_framebuffer_object = GL_TRUE; -#endif -#if FEATURE_EXT_framebuffer_blit - ctx->Extensions.EXT_framebuffer_blit = GL_TRUE; -#endif -#if FEATURE_ARB_framebuffer_object - ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE; -#endif - /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/ - ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; - ctx->Extensions.EXT_paletted_texture = GL_TRUE; -#if FEATURE_EXT_pixel_buffer_object - ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; -#endif - ctx->Extensions.EXT_point_parameters = GL_TRUE; - ctx->Extensions.EXT_provoking_vertex = GL_TRUE; - ctx->Extensions.EXT_shadow_funcs = GL_TRUE; - ctx->Extensions.EXT_secondary_color = GL_TRUE; - ctx->Extensions.EXT_shared_texture_palette = GL_TRUE; - ctx->Extensions.EXT_stencil_wrap = GL_TRUE; - ctx->Extensions.EXT_stencil_two_side = GL_TRUE; - ctx->Extensions.EXT_texture_array = GL_TRUE; - ctx->Extensions.EXT_texture_env_add = GL_TRUE; - ctx->Extensions.EXT_texture_env_combine = GL_TRUE; - ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE; - ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE; - ctx->Extensions.EXT_texture_lod_bias = GL_TRUE; -#if FEATURE_EXT_texture_sRGB - ctx->Extensions.EXT_texture_sRGB = GL_TRUE; - ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE; -#endif - ctx->Extensions.EXT_texture_swizzle = GL_TRUE; -#if FEATURE_EXT_transform_feedback - /*ctx->Extensions.EXT_transform_feedback = GL_TRUE;*/ -#endif - ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE; - /*ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;*/ - ctx->Extensions.MESA_pack_invert = GL_TRUE; - ctx->Extensions.MESA_resize_buffers = GL_TRUE; - ctx->Extensions.MESA_texture_array = GL_TRUE; - ctx->Extensions.MESA_ycbcr_texture = GL_TRUE; - ctx->Extensions.NV_blend_square = GL_TRUE; - ctx->Extensions.NV_conditional_render = GL_TRUE; - /*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/ - ctx->Extensions.NV_point_sprite = GL_TRUE; - ctx->Extensions.NV_texture_env_combine4 = GL_TRUE; - ctx->Extensions.NV_texture_rectangle = GL_TRUE; - /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/ -#if FEATURE_NV_vertex_program - ctx->Extensions.NV_vertex_program = GL_TRUE; - ctx->Extensions.NV_vertex_program1_1 = GL_TRUE; -#endif -#if FEATURE_NV_fragment_program - ctx->Extensions.NV_fragment_program = GL_TRUE; -#endif -#if FEATURE_NV_fragment_program && FEATURE_ARB_fragment_program - ctx->Extensions.NV_fragment_program_option = GL_TRUE; -#endif - ctx->Extensions.SGI_texture_color_table = GL_TRUE; - /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/ - ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE; -#if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program - ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE; -#endif -#if FEATURE_texture_fxt1 - _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1"); -#endif -#if FEATURE_texture_s3tc - if (ctx->Mesa_DXTn) { - _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); - _mesa_enable_extension(ctx, "GL_S3_s3tc"); - } -#endif -} - - -/** - * Enable common EXT extensions in the ARB_imaging subset. - */ -void -_mesa_enable_imaging_extensions(struct gl_context *ctx) -{ - ctx->Extensions.EXT_blend_color = GL_TRUE; - ctx->Extensions.EXT_blend_logic_op = GL_TRUE; - ctx->Extensions.EXT_blend_minmax = GL_TRUE; - ctx->Extensions.EXT_blend_subtract = GL_TRUE; -} - - - -/** - * Enable all OpenGL 1.3 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_1_3_extensions(struct gl_context *ctx) -{ - /*ctx->Extensions.ARB_multisample = GL_TRUE;*/ - ctx->Extensions.ARB_multitexture = GL_TRUE; - ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; - /*ctx->Extensions.ARB_texture_compression = GL_TRUE;*/ - ctx->Extensions.ARB_texture_cube_map = GL_TRUE; - ctx->Extensions.ARB_texture_env_combine = GL_TRUE; - ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; - ctx->Extensions.EXT_texture_env_add = GL_TRUE; - /*ctx->Extensions.ARB_transpose_matrix = GL_TRUE;*/ -} - - - -/** - * Enable all OpenGL 1.4 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_1_4_extensions(struct gl_context *ctx) -{ - ctx->Extensions.ARB_depth_texture = GL_TRUE; - ctx->Extensions.ARB_shadow = GL_TRUE; - ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; - ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; - ctx->Extensions.ARB_window_pos = GL_TRUE; - ctx->Extensions.EXT_blend_color = GL_TRUE; - ctx->Extensions.EXT_blend_func_separate = GL_TRUE; - ctx->Extensions.EXT_blend_minmax = GL_TRUE; - ctx->Extensions.EXT_blend_subtract = GL_TRUE; - ctx->Extensions.EXT_fog_coord = GL_TRUE; - /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/ - ctx->Extensions.EXT_point_parameters = GL_TRUE; - ctx->Extensions.EXT_secondary_color = GL_TRUE; - ctx->Extensions.EXT_stencil_wrap = GL_TRUE; - ctx->Extensions.EXT_texture_lod_bias = GL_TRUE; - /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/ -} - - -/** - * Enable all OpenGL 1.5 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_1_5_extensions(struct gl_context *ctx) -{ - ctx->Extensions.ARB_occlusion_query = GL_TRUE; - /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/ - ctx->Extensions.EXT_shadow_funcs = GL_TRUE; -} - - -/** - * Enable all OpenGL 2.0 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_2_0_extensions(struct gl_context *ctx) -{ - /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/ -#if FEATURE_ARB_fragment_shader - ctx->Extensions.ARB_fragment_shader = GL_TRUE; -#endif - ctx->Extensions.ARB_point_sprite = GL_TRUE; - ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; - ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; -#if FEATURE_ARB_shader_objects - ctx->Extensions.ARB_shader_objects = GL_TRUE; -#endif -#if FEATURE_ARB_shading_language_100 - ctx->Extensions.ARB_shading_language_100 = GL_TRUE; -#endif - ctx->Extensions.EXT_stencil_two_side = GL_TRUE; -#if FEATURE_ARB_vertex_shader - ctx->Extensions.ARB_vertex_shader = GL_TRUE; -#endif -} - - -/** - * Enable all OpenGL 2.1 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_2_1_extensions(struct gl_context *ctx) -{ -#if FEATURE_EXT_pixel_buffer_object - ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; -#endif -#if FEATURE_EXT_texture_sRGB - ctx->Extensions.EXT_texture_sRGB = GL_TRUE; -#endif -} - - -/** - * Either enable or disable the named extension. - * \return GL_TRUE for success, GL_FALSE if invalid extension name - */ -static GLboolean -set_extension( struct gl_context *ctx, const char *name, GLboolean state ) -{ - size_t offset; - - if (ctx->Extensions.String) { - /* The string was already queried - can't change it now! */ - _mesa_problem(ctx, "Trying to enable/disable extension after glGetString(GL_EXTENSIONS): %s", name); - return GL_FALSE; - } - - offset = name_to_offset(name); - if (offset == 0) { - _mesa_problem(ctx, "Trying to enable/disable unknown extension %s", - name); - return GL_FALSE; - } else if (offset == o(dummy_true) && state == GL_FALSE) { - _mesa_problem(ctx, "Trying to disable a permanently enabled extension: " - "%s", name); - return GL_FALSE; - } else { - GLboolean *base = (GLboolean *) &ctx->Extensions; - base[offset] = state; - return GL_TRUE; - } -} - - -/** - * Enable the named extension. - * Typically called by drivers. - */ -void -_mesa_enable_extension( struct gl_context *ctx, const char *name ) -{ - if (!set_extension(ctx, name, GL_TRUE)) - _mesa_problem(ctx, "Trying to enable unknown extension: %s", name); -} - - -/** - * Disable the named extension. - * XXX is this really needed??? - */ -void -_mesa_disable_extension( struct gl_context *ctx, const char *name ) -{ - if (!set_extension(ctx, name, GL_FALSE)) - _mesa_problem(ctx, "Trying to disable unknown extension: %s", name); -} - - -/** - * Test if the named extension is enabled in this context. - */ -GLboolean -_mesa_extension_is_enabled( struct gl_context *ctx, const char *name ) -{ - size_t offset; - GLboolean *base; - - if (name == 0) - return GL_FALSE; - - offset = name_to_offset(name); - if (offset == 0) - return GL_FALSE; - base = (GLboolean *) &ctx->Extensions; - return base[offset]; -} - - -/** - * \brief Apply the \c MESA_EXTENSION_OVERRIDE environment variable. - * - * \c MESA_EXTENSION_OVERRIDE is a space-separated list of extensions to - * enable or disable. The list is processed thus: - * - Enable recognized extension names that are prefixed with '+'. - * - Disable recognized extension names that are prefixed with '-'. - * - Enable recognized extension names that are not prefixed. - * - Collect unrecognized extension names in a new string. - * - * \return Space-separated list of unrecognized extension names (which must - * be freed). Does not return \c NULL. - */ -static char * -get_extension_override( struct gl_context *ctx ) -{ - const char *env_const= _mesa_getenv("MESA_EXTENSION_OVERRIDE"); - char *env; - char *ext; - char *extra_exts; - int len; - - if (env_const == NULL) { - /* Return the empty string rather than NULL. This simplifies the logic - * of client functions. */ - return calloc(1, sizeof(char)); - } - - /* extra_exts: List of unrecognized extensions. */ - extra_exts = calloc(strlen(env_const), sizeof(char)); - - /* Copy env_const because strtok() is destructive. */ - env = strdup(env_const); - for (ext = strtok(env, " "); ext != NULL; ext = strtok(NULL, " ")) { - int enable; - int recognized; - switch (ext[0]) { - case '+': - enable = 1; - ++ext; - break; - case '-': - enable = 0; - ++ext; - break; - default: - enable = 1; - break; - } - recognized = set_extension(ctx, ext, enable); - if (!recognized) { - strcat(extra_exts, ext); - strcat(extra_exts, " "); - } - } - - /* Remove trailing space. */ - len = strlen(extra_exts); - if (extra_exts[len - 1] == ' ') - extra_exts[len - 1] = '\0'; - - return extra_exts; -} - - -/** - * \brief Initialize extension tables and enable default extensions. - * - * This should be called during context initialization. - * Note: Sets gl_extensions.dummy_true to true. - */ -void -_mesa_init_extensions( struct gl_context *ctx ) -{ - GLboolean *base = (GLboolean *) &ctx->Extensions; - GLboolean *sentinel = base + o(extension_sentinel); - GLboolean *i; - const size_t *j; - - /* First, turn all extensions off. */ - for (i = base; i != sentinel; ++i) - *i = GL_FALSE; - - /* Then, selectively turn default extensions on. */ - ctx->Extensions.dummy_true = GL_TRUE; - for (j = default_extensions; *j != 0; ++j) - base[*j] = GL_TRUE; -} - - -/** - * Construct the GL_EXTENSIONS string. Called the first time that - * glGetString(GL_EXTENSIONS) is called. - */ -GLubyte* -_mesa_make_extension_string(struct gl_context *ctx) -{ - /* The extension string. */ - char *exts = 0; - /* Length of extension string. */ - size_t length = 0; - /* String of extra extensions. */ - char *extra_extensions = get_extension_override(ctx); - GLboolean *base = (GLboolean *) &ctx->Extensions; - const struct extension *i; - - /* Compute length of the extension string. */ - for (i = extension_table; i->name != 0; ++i) { - if (base[i->offset] && (i->api_set & (1 << ctx->API))) { - length += strlen(i->name) + 1; /* +1 for space */ - } - } - if (extra_extensions != NULL) - length += 1 + strlen(extra_extensions); /* +1 for space */ - - exts = (char *) calloc(length + 1, sizeof(char)); - if (exts == NULL) { - free(extra_extensions); - return NULL; - } - - /* Build the extension string.*/ - for (i = extension_table; i->name != 0; ++i) { - if (base[i->offset] && (i->api_set & (1 << ctx->API))) { - strcat(exts, i->name); - strcat(exts, " "); - } - } - if (extra_extensions != 0) { - strcat(exts, extra_extensions); - free(extra_extensions); - } - - return (GLubyte *) exts; -} - -/** - * Return number of enabled extensions. - */ -GLuint -_mesa_get_extension_count(struct gl_context *ctx) -{ - GLboolean *base; - const struct extension *i; - - /* only count once */ - if (ctx->Extensions.Count != 0) - return ctx->Extensions.Count; - - base = (GLboolean *) &ctx->Extensions; - for (i = extension_table; i->name != 0; ++i) { - if (base[i->offset]) { - ctx->Extensions.Count++; - } - } - return ctx->Extensions.Count; -} - -/** - * Return name of i-th enabled extension - */ -const GLubyte * -_mesa_get_enabled_extension(struct gl_context *ctx, GLuint index) -{ - const GLboolean *base; - size_t n; - const struct extension *i; - - if (index < 0) - return NULL; - - base = (GLboolean*) &ctx->Extensions; - n = 0; - for (i = extension_table; i->name != 0; ++i) { - if (n == index && base[i->offset]) { - return (GLubyte*) i->name; - } else if (base[i->offset]) { - ++n; - } - } - - return NULL; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.6
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file
+ * \brief Extension handling
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "context.h"
+#include "extensions.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+
+enum {
+ DISABLE = 0,
+ GL = 1 << API_OPENGL,
+ ES1 = 1 << API_OPENGLES,
+ ES2 = 1 << API_OPENGLES2,
+};
+
+/**
+ * \brief An element of the \c extension_table.
+ */
+struct extension {
+ /** Name of extension, such as "GL_ARB_depth_clamp". */
+ const char *name;
+
+ /** Offset (in bytes) of the corresponding member in struct gl_extensions. */
+ size_t offset;
+
+ /** Set of API's in which the extension exists, as a bitset. */
+ uint8_t api_set;
+};
+
+
+/**
+ * Given a member \c x of struct gl_extensions, return offset of
+ * \c x in bytes.
+ */
+#define o(x) offsetof(struct gl_extensions, x)
+
+
+/**
+ * \brief Table of supported OpenGL extensions for all API's.
+ *
+ * Note: The GL_MESAX_* extensions are placeholders for future ARB extensions.
+ */
+static const struct extension extension_table[] = {
+ /* ARB Extensions */
+ { "GL_ARB_ES2_compatibility", o(ARB_ES2_compatibility), GL },
+ { "GL_ARB_blend_func_extended", o(ARB_blend_func_extended), GL },
+ { "GL_ARB_copy_buffer", o(ARB_copy_buffer), GL },
+ { "GL_ARB_depth_buffer_float", o(ARB_depth_buffer_float), GL },
+ { "GL_ARB_depth_clamp", o(ARB_depth_clamp), GL },
+ { "GL_ARB_depth_texture", o(ARB_depth_texture), GL },
+ { "GL_ARB_draw_buffers", o(ARB_draw_buffers), GL },
+ { "GL_ARB_draw_buffers_blend", o(ARB_draw_buffers_blend), GL },
+ { "GL_ARB_draw_elements_base_vertex", o(ARB_draw_elements_base_vertex), GL },
+ { "GL_ARB_draw_instanced", o(ARB_draw_instanced), GL },
+ { "GL_ARB_explicit_attrib_location", o(ARB_explicit_attrib_location), GL },
+ { "GL_ARB_fragment_coord_conventions", o(ARB_fragment_coord_conventions), GL },
+ { "GL_ARB_fragment_program", o(ARB_fragment_program), GL },
+ { "GL_ARB_fragment_program_shadow", o(ARB_fragment_program_shadow), GL },
+ { "GL_ARB_fragment_shader", o(ARB_fragment_shader), GL },
+ { "GL_ARB_framebuffer_object", o(ARB_framebuffer_object), GL },
+ { "GL_ARB_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL },
+ { "GL_ARB_half_float_pixel", o(ARB_half_float_pixel), GL },
+ { "GL_ARB_half_float_vertex", o(ARB_half_float_vertex), GL },
+ { "GL_ARB_instanced_arrays", o(ARB_instanced_arrays), GL },
+ { "GL_ARB_map_buffer_range", o(ARB_map_buffer_range), GL },
+ { "GL_ARB_multisample", o(ARB_multisample), GL },
+ { "GL_ARB_multitexture", o(ARB_multitexture), GL },
+ { "GL_ARB_occlusion_query2", o(ARB_occlusion_query2), GL },
+ { "GL_ARB_occlusion_query", o(ARB_occlusion_query), GL },
+ { "GL_ARB_pixel_buffer_object", o(EXT_pixel_buffer_object), GL },
+ { "GL_ARB_point_parameters", o(EXT_point_parameters), GL },
+ { "GL_ARB_point_sprite", o(ARB_point_sprite), GL },
+ { "GL_ARB_provoking_vertex", o(EXT_provoking_vertex), GL },
+ { "GL_ARB_sampler_objects", o(ARB_sampler_objects), GL },
+ { "GL_ARB_seamless_cube_map", o(ARB_seamless_cube_map), GL },
+ { "GL_ARB_shader_objects", o(ARB_shader_objects), GL },
+ { "GL_ARB_shader_stencil_export", o(ARB_shader_stencil_export), GL },
+ { "GL_ARB_shading_language_100", o(ARB_shading_language_100), GL },
+ { "GL_ARB_shadow_ambient", o(ARB_shadow_ambient), GL },
+ { "GL_ARB_shadow", o(ARB_shadow), GL },
+ { "GL_ARB_sync", o(ARB_sync), GL },
+ { "GL_ARB_texture_border_clamp", o(ARB_texture_border_clamp), GL },
+ { "GL_ARB_texture_buffer_object", o(ARB_texture_buffer_object), GL },
+ { "GL_ARB_texture_compression", o(ARB_texture_compression), GL },
+ { "GL_ARB_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL },
+ { "GL_ARB_texture_cube_map", o(ARB_texture_cube_map), GL },
+ { "GL_ARB_texture_env_add", o(EXT_texture_env_add), GL },
+ { "GL_ARB_texture_env_combine", o(ARB_texture_env_combine), GL },
+ { "GL_ARB_texture_env_crossbar", o(ARB_texture_env_crossbar), GL },
+ { "GL_ARB_texture_env_dot3", o(ARB_texture_env_dot3), GL },
+ { "GL_ARB_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL },
+ { "GL_ARB_texture_multisample", o(ARB_texture_multisample), GL },
+ { "GL_ARB_texture_non_power_of_two", o(ARB_texture_non_power_of_two), GL },
+ { "GL_ARB_texture_rectangle", o(NV_texture_rectangle), GL },
+ { "GL_ARB_texture_rgb10_a2ui", o(ARB_texture_rgb10_a2ui), GL },
+ { "GL_ARB_texture_rg", o(ARB_texture_rg), GL },
+ { "GL_ARB_texture_swizzle", o(EXT_texture_swizzle), GL },
+ { "GL_ARB_transform_feedback2", o(ARB_transform_feedback2), GL },
+ { "GL_ARB_transpose_matrix", o(ARB_transpose_matrix), GL },
+ { "GL_ARB_uniform_buffer_object", o(ARB_uniform_buffer_object), GL },
+ { "GL_ARB_vertex_array_bgra", o(EXT_vertex_array_bgra), GL },
+ { "GL_ARB_vertex_array_object", o(ARB_vertex_array_object), GL },
+ { "GL_ARB_vertex_buffer_object", o(ARB_vertex_buffer_object), GL },
+ { "GL_ARB_vertex_program", o(ARB_vertex_program), GL },
+ { "GL_ARB_vertex_shader", o(ARB_vertex_shader), GL },
+ { "GL_ARB_vertex_type_2_10_10_10_rev", o(ARB_vertex_type_2_10_10_10_rev), GL },
+ { "GL_ARB_window_pos", o(ARB_window_pos), GL },
+
+ /* EXT extensions */
+ { "GL_EXT_abgr", o(EXT_abgr), GL },
+ { "GL_EXT_bgra", o(EXT_bgra), GL },
+ { "GL_EXT_blend_color", o(EXT_blend_color), GL },
+ { "GL_EXT_blend_equation_separate", o(EXT_blend_equation_separate), GL },
+ { "GL_EXT_blend_func_separate", o(EXT_blend_func_separate), GL },
+ { "GL_EXT_blend_logic_op", o(EXT_blend_logic_op), GL },
+ { "GL_EXT_blend_minmax", o(EXT_blend_minmax), GL | ES1 | ES2 },
+ { "GL_EXT_blend_subtract", o(EXT_blend_subtract), GL },
+ { "GL_EXT_clip_volume_hint", o(EXT_clip_volume_hint), GL },
+ { "GL_EXT_compiled_vertex_array", o(EXT_compiled_vertex_array), GL },
+ { "GL_EXT_copy_texture", o(EXT_copy_texture), GL },
+ { "GL_EXT_depth_bounds_test", o(EXT_depth_bounds_test), GL },
+ { "GL_EXT_draw_buffers2", o(EXT_draw_buffers2), GL },
+ { "GL_EXT_draw_instanced", o(ARB_draw_instanced), GL },
+ { "GL_EXT_draw_range_elements", o(EXT_draw_range_elements), GL },
+ { "GL_EXT_fog_coord", o(EXT_fog_coord), GL },
+ { "GL_EXT_framebuffer_blit", o(EXT_framebuffer_blit), GL },
+ { "GL_EXT_framebuffer_multisample", o(EXT_framebuffer_multisample), GL },
+ { "GL_EXT_framebuffer_object", o(EXT_framebuffer_object), GL },
+ { "GL_EXT_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL },
+ { "GL_EXT_gpu_program_parameters", o(EXT_gpu_program_parameters), GL },
+ { "GL_EXT_gpu_shader4", o(EXT_gpu_shader4), GL },
+ { "GL_EXT_multi_draw_arrays", o(EXT_multi_draw_arrays), GL | ES1 | ES2 },
+ { "GL_EXT_packed_depth_stencil", o(EXT_packed_depth_stencil), GL },
+ { "GL_EXT_packed_float", o(EXT_packed_float), GL },
+ { "GL_EXT_packed_pixels", o(EXT_packed_pixels), GL },
+ { "GL_EXT_paletted_texture", o(EXT_paletted_texture), GL },
+ { "GL_EXT_pixel_buffer_object", o(EXT_pixel_buffer_object), GL },
+ { "GL_EXT_point_parameters", o(EXT_point_parameters), GL },
+ { "GL_EXT_polygon_offset", o(EXT_polygon_offset), GL },
+ { "GL_EXT_provoking_vertex", o(EXT_provoking_vertex), GL },
+ { "GL_EXT_rescale_normal", o(EXT_rescale_normal), GL },
+ { "GL_EXT_secondary_color", o(EXT_secondary_color), GL },
+ { "GL_EXT_separate_shader_objects", o(EXT_separate_shader_objects), GL },
+ { "GL_EXT_separate_specular_color", o(EXT_separate_specular_color), GL },
+ { "GL_EXT_shadow_funcs", o(EXT_shadow_funcs), GL },
+ { "GL_EXT_shared_texture_palette", o(EXT_shared_texture_palette), GL },
+ { "GL_EXT_stencil_two_side", o(EXT_stencil_two_side), GL },
+ { "GL_EXT_stencil_wrap", o(EXT_stencil_wrap), GL },
+ { "GL_EXT_subtexture", o(EXT_subtexture), GL },
+ { "GL_EXT_texture3D", o(EXT_texture3D), GL },
+ { "GL_EXT_texture_array", o(EXT_texture_array), GL },
+ { "GL_EXT_texture_compression_dxt1", o(EXT_texture_compression_s3tc), GL | ES1 | ES2 },
+ { "GL_EXT_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL },
+ { "GL_EXT_texture_compression_s3tc", o(EXT_texture_compression_s3tc), GL },
+ { "GL_EXT_texture_cube_map", o(ARB_texture_cube_map), GL },
+ { "GL_EXT_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL },
+ { "GL_EXT_texture_env_add", o(EXT_texture_env_add), GL },
+ { "GL_EXT_texture_env_combine", o(EXT_texture_env_combine), GL },
+ { "GL_EXT_texture_env_dot3", o(EXT_texture_env_dot3), GL },
+ { "GL_EXT_texture_filter_anisotropic", o(EXT_texture_filter_anisotropic), GL | ES1 | ES2 },
+ { "GL_EXT_texture_format_BGRA8888", o(EXT_texture_format_BGRA8888), ES1 | ES2 },
+ { "GL_EXT_texture_integer", o(EXT_texture_integer), GL },
+ { "GL_EXT_texture_lod_bias", o(EXT_texture_lod_bias), GL | ES1 },
+ { "GL_EXT_texture_mirror_clamp", o(EXT_texture_mirror_clamp), GL },
+ { "GL_EXT_texture_object", o(EXT_texture_object), GL },
+ { "GL_EXT_texture", o(EXT_texture), GL },
+ { "GL_EXT_texture_rectangle", o(NV_texture_rectangle), GL },
+ { "GL_EXT_texture_shared_exponent", o(EXT_texture_shared_exponent), GL },
+ { "GL_EXT_texture_sRGB", o(EXT_texture_sRGB), GL },
+ { "GL_EXT_texture_sRGB_decode", o(EXT_texture_sRGB_decode), GL },
+ { "GL_EXT_texture_swizzle", o(EXT_texture_swizzle), GL },
+ { "GL_EXT_texture_type_2_10_10_10_REV", o(dummy_true), ES2 },
+ { "GL_EXT_timer_query", o(EXT_timer_query), GL },
+ { "GL_EXT_transform_feedback", o(EXT_transform_feedback), GL },
+ { "GL_EXT_vertex_array_bgra", o(EXT_vertex_array_bgra), GL },
+ { "GL_EXT_vertex_array", o(EXT_vertex_array), GL },
+ { "GL_EXT_vertex_array_set", o(EXT_vertex_array_set), GL },
+
+ /* OES extensions */
+ { "GL_OES_blend_equation_separate", o(EXT_blend_equation_separate), ES1 },
+ { "GL_OES_blend_func_separate", o(EXT_blend_func_separate), ES1 },
+ { "GL_OES_blend_subtract", o(EXT_blend_subtract), ES1 },
+ { "GL_OES_byte_coordinates", o(dummy_true), ES1 },
+ { "GL_OES_compressed_paletted_texture", o(dummy_false), DISABLE },
+ { "GL_OES_depth24", o(EXT_framebuffer_object), ES1 | ES2 },
+ { "GL_OES_depth32", o(dummy_false), DISABLE },
+ { "GL_OES_depth_texture", o(ARB_depth_texture), ES2 },
+#if FEATURE_OES_draw_texture
+ { "GL_OES_draw_texture", o(OES_draw_texture), ES1 | ES2 },
+#endif
+#if FEATURE_OES_EGL_image
+ /* FIXME: Mesa expects GL_OES_EGL_image to be available in OpenGL contexts. */
+ { "GL_OES_EGL_image", o(OES_EGL_image), GL | ES1 | ES2 },
+#endif
+ { "GL_OES_element_index_uint", o(EXT_vertex_array), ES1 | ES2 },
+ { "GL_OES_fbo_render_mipmap", o(EXT_framebuffer_object), ES1 | ES2 },
+ { "GL_OES_fixed_point", o(dummy_true), ES1 },
+ { "GL_OES_framebuffer_object", o(EXT_framebuffer_object), ES1 },
+ { "GL_OES_mapbuffer", o(ARB_vertex_buffer_object), ES1 | ES2 },
+ { "GL_OES_matrix_get", o(dummy_true), ES1 },
+ { "GL_OES_packed_depth_stencil", o(EXT_packed_depth_stencil), ES1 | ES2 },
+ { "GL_OES_point_size_array", o(dummy_true), ES1 },
+ { "GL_OES_point_sprite", o(ARB_point_sprite), ES1 },
+ { "GL_OES_query_matrix", o(dummy_true), ES1 },
+ { "GL_OES_read_format", o(OES_read_format), GL | ES1 },
+ { "GL_OES_rgb8_rgba8", o(EXT_framebuffer_object), ES1 | ES2 },
+ { "GL_OES_single_precision", o(dummy_true), ES1 },
+ { "GL_OES_standard_derivatives", o(OES_standard_derivatives), ES2 },
+ { "GL_OES_stencil1", o(dummy_false), DISABLE },
+ { "GL_OES_stencil4", o(dummy_false), DISABLE },
+ { "GL_OES_stencil8", o(EXT_framebuffer_object), ES1 | ES2 },
+ { "GL_OES_stencil_wrap", o(EXT_stencil_wrap), ES1 },
+ /* GL_OES_texture_3D is disabled due to missing GLSL support. */
+ { "GL_OES_texture_3D", o(EXT_texture3D), DISABLE },
+ { "GL_OES_texture_cube_map", o(ARB_texture_cube_map), ES1 },
+ { "GL_OES_texture_env_crossbar", o(ARB_texture_env_crossbar), ES1 },
+ { "GL_OES_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), ES1 },
+ { "GL_OES_texture_npot", o(ARB_texture_non_power_of_two), ES2 },
+
+ /* Vendor extensions */
+ { "GL_3DFX_texture_compression_FXT1", o(TDFX_texture_compression_FXT1), GL },
+ { "GL_AMD_conservative_depth", o(AMD_conservative_depth), GL },
+ { "GL_APPLE_client_storage", o(APPLE_client_storage), GL },
+ { "GL_APPLE_object_purgeable", o(APPLE_object_purgeable), GL },
+ { "GL_APPLE_packed_pixels", o(APPLE_packed_pixels), GL },
+ { "GL_APPLE_vertex_array_object", o(APPLE_vertex_array_object), GL },
+ { "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL },
+ { "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GL },
+ { "GL_ATI_fragment_shader", o(ATI_fragment_shader), GL },
+ { "GL_ATI_separate_stencil", o(ATI_separate_stencil), GL },
+ { "GL_ATI_texture_env_combine3", o(ATI_texture_env_combine3), GL },
+ { "GL_ATI_texture_mirror_once", o(ATI_texture_mirror_once), GL },
+ { "GL_IBM_multimode_draw_arrays", o(IBM_multimode_draw_arrays), GL },
+ { "GL_IBM_rasterpos_clip", o(IBM_rasterpos_clip), GL },
+ { "GL_IBM_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL },
+ { "GL_INGR_blend_func_separate", o(EXT_blend_func_separate), GL },
+ { "GL_MESA_pack_invert", o(MESA_pack_invert), GL },
+ { "GL_MESA_resize_buffers", o(MESA_resize_buffers), GL },
+ { "GL_MESA_texture_array", o(MESA_texture_array), GL },
+ { "GL_MESA_texture_signed_rgba", o(MESA_texture_signed_rgba), GL },
+ { "GL_MESA_window_pos", o(ARB_window_pos), GL },
+ { "GL_MESAX_texture_float", o(ARB_texture_float), GL },
+ { "GL_MESA_ycbcr_texture", o(MESA_ycbcr_texture), GL },
+ { "GL_NV_blend_square", o(NV_blend_square), GL },
+ { "GL_NV_conditional_render", o(NV_conditional_render), GL },
+ { "GL_NV_depth_clamp", o(ARB_depth_clamp), GL },
+ { "GL_NV_fragment_program", o(NV_fragment_program), GL },
+ { "GL_NV_fragment_program_option", o(NV_fragment_program_option), GL },
+ { "GL_NV_light_max_exponent", o(NV_light_max_exponent), GL },
+ { "GL_NV_packed_depth_stencil", o(EXT_packed_depth_stencil), GL },
+ { "GL_NV_point_sprite", o(NV_point_sprite), GL },
+ { "GL_NV_primitive_restart", o(NV_primitive_restart), GL },
+ { "GL_NV_texgen_reflection", o(NV_texgen_reflection), GL },
+ { "GL_NV_texture_env_combine4", o(NV_texture_env_combine4), GL },
+ { "GL_NV_texture_rectangle", o(NV_texture_rectangle), GL },
+ { "GL_NV_vertex_program1_1", o(NV_vertex_program1_1), GL },
+ { "GL_NV_vertex_program", o(NV_vertex_program), GL },
+ { "GL_S3_s3tc", o(S3_s3tc), GL },
+ { "GL_SGIS_generate_mipmap", o(SGIS_generate_mipmap), GL },
+ { "GL_SGIS_texture_border_clamp", o(ARB_texture_border_clamp), GL },
+ { "GL_SGIS_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL },
+ { "GL_SGIS_texture_lod", o(SGIS_texture_lod), GL },
+ { "GL_SGI_texture_color_table", o(SGI_texture_color_table), GL },
+ { "GL_SUN_multi_draw_arrays", o(EXT_multi_draw_arrays), GL },
+
+ { 0, 0, 0 },
+};
+
+
+/**
+ * Given an extension name, lookup up the corresponding member of struct
+ * gl_extensions and return that member's offset (in bytes). If the name is
+ * not found in the \c extension_table, return 0.
+ *
+ * \param name Name of extension.
+ * \return Offset of member in struct gl_extensions.
+ */
+static size_t
+name_to_offset(const char* name)
+{
+ const struct extension *i;
+
+ if (name == 0)
+ return 0;
+
+ for (i = extension_table; i->name != 0; ++i) {
+ if (strcmp(name, i->name) == 0)
+ return i->offset;
+ }
+
+ return 0;
+}
+
+
+/**
+ * \brief Extensions enabled by default.
+ *
+ * These extensions are enabled by _mesa_init_extensions().
+ *
+ * XXX: Should these defaults also apply to GLES?
+ */
+static const size_t default_extensions[] = {
+ o(ARB_copy_buffer),
+ o(ARB_draw_buffers),
+ o(ARB_multisample),
+ o(ARB_texture_compression),
+ o(ARB_transpose_matrix),
+ o(ARB_vertex_buffer_object),
+ o(ARB_window_pos),
+
+ o(EXT_abgr),
+ o(EXT_bgra),
+ o(EXT_compiled_vertex_array),
+ o(EXT_copy_texture),
+ o(EXT_draw_range_elements),
+ o(EXT_multi_draw_arrays),
+ o(EXT_packed_pixels),
+ o(EXT_polygon_offset),
+ o(EXT_rescale_normal),
+ o(EXT_separate_specular_color),
+ o(EXT_subtexture),
+ o(EXT_texture),
+ o(EXT_texture3D),
+ o(EXT_texture_object),
+ o(EXT_vertex_array),
+
+ o(OES_read_format),
+ o(OES_standard_derivatives),
+
+ /* Vendor Extensions */
+ o(APPLE_packed_pixels),
+ o(IBM_multimode_draw_arrays),
+ o(IBM_rasterpos_clip),
+ o(NV_light_max_exponent),
+ o(NV_texgen_reflection),
+ o(SGIS_generate_mipmap),
+ o(SGIS_texture_edge_clamp),
+ o(SGIS_texture_lod),
+
+ 0,
+};
+
+
+/**
+ * Enable all extensions suitable for a software-only renderer.
+ * This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc.
+ */
+void
+_mesa_enable_sw_extensions(struct gl_context *ctx)
+{
+ /*ctx->Extensions.ARB_copy_buffer = GL_TRUE;*/
+ ctx->Extensions.ARB_depth_clamp = GL_TRUE;
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
+ /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
+ ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
+ ctx->Extensions.ARB_draw_instanced = GL_TRUE;
+ ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
+ ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
+#if FEATURE_ARB_fragment_program
+ ctx->Extensions.ARB_fragment_program = GL_TRUE;
+ ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
+#endif
+#if FEATURE_ARB_fragment_shader
+ ctx->Extensions.ARB_fragment_shader = GL_TRUE;
+#endif
+#if FEATURE_ARB_framebuffer_object
+ ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
+#endif
+#if FEATURE_ARB_geometry_shader4 && 0
+ /* XXX re-enable when GLSL compiler again supports geometry shaders */
+ ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
+ ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
+ ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
+ ctx->Extensions.ARB_multitexture = GL_TRUE;
+#if FEATURE_queryobj
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ ctx->Extensions.ARB_occlusion_query2 = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_point_sprite = GL_TRUE;
+#if FEATURE_ARB_shader_objects
+ ctx->Extensions.ARB_shader_objects = GL_TRUE;
+ ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;
+#endif
+#if FEATURE_ARB_shading_language_100
+ ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_shadow = GL_TRUE;
+ ctx->Extensions.ARB_shadow_ambient = GL_TRUE;
+ ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
+ ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
+ /*ctx->Extensions.ARB_texture_float = GL_TRUE;*/
+ ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
+ ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+ ctx->Extensions.ARB_texture_rg = GL_TRUE;
+ ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
+#if FEATURE_ARB_vertex_program
+ ctx->Extensions.ARB_vertex_program = GL_TRUE;
+#endif
+#if FEATURE_ARB_vertex_shader
+ ctx->Extensions.ARB_vertex_shader = GL_TRUE;
+#endif
+#if FEATURE_ARB_vertex_buffer_object
+ /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
+#endif
+#if FEATURE_ARB_sync
+ ctx->Extensions.ARB_sync = GL_TRUE;
+#endif
+ ctx->Extensions.APPLE_vertex_array_object = GL_TRUE;
+#if FEATURE_APPLE_object_purgeable
+ ctx->Extensions.APPLE_object_purgeable = GL_TRUE;
+#endif
+ ctx->Extensions.ATI_envmap_bumpmap = GL_TRUE;
+#if FEATURE_ATI_fragment_shader
+ ctx->Extensions.ATI_fragment_shader = GL_TRUE;
+#endif
+ ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
+ ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
+ ctx->Extensions.ATI_separate_stencil = GL_TRUE;
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+ ctx->Extensions.EXT_depth_bounds_test = GL_TRUE;
+ ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;
+ ctx->Extensions.EXT_fog_coord = GL_TRUE;
+#if FEATURE_EXT_framebuffer_object
+ ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
+#endif
+#if FEATURE_EXT_framebuffer_blit
+ ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
+#endif
+#if FEATURE_ARB_framebuffer_object
+ ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
+#endif
+ /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
+ ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
+ ctx->Extensions.EXT_paletted_texture = GL_TRUE;
+#if FEATURE_EXT_pixel_buffer_object
+ ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
+#endif
+ ctx->Extensions.EXT_point_parameters = GL_TRUE;
+ ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
+ ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
+ ctx->Extensions.EXT_secondary_color = GL_TRUE;
+ ctx->Extensions.EXT_shared_texture_palette = GL_TRUE;
+ ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
+ ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
+ ctx->Extensions.EXT_texture_array = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_add = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
+ ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
+ ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
+#if FEATURE_EXT_texture_sRGB
+ ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
+ ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE;
+#endif
+ ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
+#if FEATURE_EXT_transform_feedback
+ /*ctx->Extensions.EXT_transform_feedback = GL_TRUE;*/
+#endif
+ ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
+ /*ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;*/
+ ctx->Extensions.MESA_pack_invert = GL_TRUE;
+ ctx->Extensions.MESA_resize_buffers = GL_TRUE;
+ ctx->Extensions.MESA_texture_array = GL_TRUE;
+ ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
+ ctx->Extensions.NV_blend_square = GL_TRUE;
+ ctx->Extensions.NV_conditional_render = GL_TRUE;
+ /*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/
+ ctx->Extensions.NV_point_sprite = GL_TRUE;
+ ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
+ ctx->Extensions.NV_texture_rectangle = GL_TRUE;
+ /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/
+#if FEATURE_NV_vertex_program
+ ctx->Extensions.NV_vertex_program = GL_TRUE;
+ ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
+#endif
+#if FEATURE_NV_fragment_program
+ ctx->Extensions.NV_fragment_program = GL_TRUE;
+#endif
+#if FEATURE_NV_fragment_program && FEATURE_ARB_fragment_program
+ ctx->Extensions.NV_fragment_program_option = GL_TRUE;
+#endif
+ ctx->Extensions.SGI_texture_color_table = GL_TRUE;
+ /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/
+ ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE;
+#if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
+ ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
+#endif
+#if FEATURE_texture_fxt1
+ _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1");
+#endif
+#if FEATURE_texture_s3tc
+ if (ctx->Mesa_DXTn) {
+ _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
+ _mesa_enable_extension(ctx, "GL_S3_s3tc");
+ }
+#endif
+}
+
+
+/**
+ * Enable common EXT extensions in the ARB_imaging subset.
+ */
+void
+_mesa_enable_imaging_extensions(struct gl_context *ctx)
+{
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+}
+
+
+
+/**
+ * Enable all OpenGL 1.3 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_3_extensions(struct gl_context *ctx)
+{
+ /*ctx->Extensions.ARB_multisample = GL_TRUE;*/
+ ctx->Extensions.ARB_multitexture = GL_TRUE;
+ ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
+ /*ctx->Extensions.ARB_texture_compression = GL_TRUE;*/
+ ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_add = GL_TRUE;
+ /*ctx->Extensions.ARB_transpose_matrix = GL_TRUE;*/
+}
+
+
+
+/**
+ * Enable all OpenGL 1.4 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_4_extensions(struct gl_context *ctx)
+{
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
+ ctx->Extensions.ARB_shadow = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
+ ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
+ ctx->Extensions.ARB_window_pos = GL_TRUE;
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+ ctx->Extensions.EXT_fog_coord = GL_TRUE;
+ /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
+ ctx->Extensions.EXT_point_parameters = GL_TRUE;
+ ctx->Extensions.EXT_secondary_color = GL_TRUE;
+ ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
+ ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
+ /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/
+}
+
+
+/**
+ * Enable all OpenGL 1.5 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_5_extensions(struct gl_context *ctx)
+{
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
+ ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
+}
+
+
+/**
+ * Enable all OpenGL 2.0 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_2_0_extensions(struct gl_context *ctx)
+{
+ /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
+#if FEATURE_ARB_fragment_shader
+ ctx->Extensions.ARB_fragment_shader = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_point_sprite = GL_TRUE;
+ ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
+ ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+#if FEATURE_ARB_shader_objects
+ ctx->Extensions.ARB_shader_objects = GL_TRUE;
+#endif
+#if FEATURE_ARB_shading_language_100
+ ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
+#endif
+ ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
+#if FEATURE_ARB_vertex_shader
+ ctx->Extensions.ARB_vertex_shader = GL_TRUE;
+#endif
+}
+
+
+/**
+ * Enable all OpenGL 2.1 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_2_1_extensions(struct gl_context *ctx)
+{
+#if FEATURE_EXT_pixel_buffer_object
+ ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
+#endif
+#if FEATURE_EXT_texture_sRGB
+ ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
+#endif
+}
+
+
+/**
+ * Either enable or disable the named extension.
+ * \return GL_TRUE for success, GL_FALSE if invalid extension name
+ */
+static GLboolean
+set_extension( struct gl_context *ctx, const char *name, GLboolean state )
+{
+ size_t offset;
+
+ if (ctx->Extensions.String) {
+ /* The string was already queried - can't change it now! */
+ _mesa_problem(ctx, "Trying to enable/disable extension after glGetString(GL_EXTENSIONS): %s", name);
+ return GL_FALSE;
+ }
+
+ offset = name_to_offset(name);
+ if (offset == 0) {
+ _mesa_problem(ctx, "Trying to enable/disable unknown extension %s",
+ name);
+ return GL_FALSE;
+ } else if (offset == o(dummy_true) && state == GL_FALSE) {
+ _mesa_problem(ctx, "Trying to disable a permanently enabled extension: "
+ "%s", name);
+ return GL_FALSE;
+ } else {
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ base[offset] = state;
+ return GL_TRUE;
+ }
+}
+
+
+/**
+ * Enable the named extension.
+ * Typically called by drivers.
+ */
+void
+_mesa_enable_extension( struct gl_context *ctx, const char *name )
+{
+ if (!set_extension(ctx, name, GL_TRUE))
+ _mesa_problem(ctx, "Trying to enable unknown extension: %s", name);
+}
+
+
+/**
+ * Disable the named extension.
+ * XXX is this really needed???
+ */
+void
+_mesa_disable_extension( struct gl_context *ctx, const char *name )
+{
+ if (!set_extension(ctx, name, GL_FALSE))
+ _mesa_problem(ctx, "Trying to disable unknown extension: %s", name);
+}
+
+
+/**
+ * Test if the named extension is enabled in this context.
+ */
+GLboolean
+_mesa_extension_is_enabled( struct gl_context *ctx, const char *name )
+{
+ size_t offset;
+ GLboolean *base;
+
+ if (name == 0)
+ return GL_FALSE;
+
+ offset = name_to_offset(name);
+ if (offset == 0)
+ return GL_FALSE;
+ base = (GLboolean *) &ctx->Extensions;
+ return base[offset];
+}
+
+
+/**
+ * \brief Apply the \c MESA_EXTENSION_OVERRIDE environment variable.
+ *
+ * \c MESA_EXTENSION_OVERRIDE is a space-separated list of extensions to
+ * enable or disable. The list is processed thus:
+ * - Enable recognized extension names that are prefixed with '+'.
+ * - Disable recognized extension names that are prefixed with '-'.
+ * - Enable recognized extension names that are not prefixed.
+ * - Collect unrecognized extension names in a new string.
+ *
+ * \return Space-separated list of unrecognized extension names (which must
+ * be freed). Does not return \c NULL.
+ */
+static char *
+get_extension_override( struct gl_context *ctx )
+{
+ const char *env_const= _mesa_getenv("MESA_EXTENSION_OVERRIDE");
+ char *env;
+ char *ext;
+ char *extra_exts;
+ int len;
+
+ if (env_const == NULL) {
+ /* Return the empty string rather than NULL. This simplifies the logic
+ * of client functions. */
+ return calloc(1, sizeof(char));
+ }
+
+ /* extra_exts: List of unrecognized extensions. */
+ extra_exts = calloc(strlen(env_const), sizeof(char));
+
+ /* Copy env_const because strtok() is destructive. */
+ env = strdup(env_const);
+ for (ext = strtok(env, " "); ext != NULL; ext = strtok(NULL, " ")) {
+ int enable;
+ int recognized;
+ switch (ext[0]) {
+ case '+':
+ enable = 1;
+ ++ext;
+ break;
+ case '-':
+ enable = 0;
+ ++ext;
+ break;
+ default:
+ enable = 1;
+ break;
+ }
+ recognized = set_extension(ctx, ext, enable);
+ if (!recognized) {
+ strcat(extra_exts, ext);
+ strcat(extra_exts, " ");
+ }
+ }
+
+ /* Remove trailing space. */
+ len = strlen(extra_exts);
+ if (extra_exts[len - 1] == ' ')
+ extra_exts[len - 1] = '\0';
+
+ return extra_exts;
+}
+
+
+/**
+ * \brief Initialize extension tables and enable default extensions.
+ *
+ * This should be called during context initialization.
+ * Note: Sets gl_extensions.dummy_true to true.
+ */
+void
+_mesa_init_extensions( struct gl_context *ctx )
+{
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLboolean *sentinel = base + o(extension_sentinel);
+ GLboolean *i;
+ const size_t *j;
+
+ /* First, turn all extensions off. */
+ for (i = base; i != sentinel; ++i)
+ *i = GL_FALSE;
+
+ /* Then, selectively turn default extensions on. */
+ ctx->Extensions.dummy_true = GL_TRUE;
+ for (j = default_extensions; *j != 0; ++j)
+ base[*j] = GL_TRUE;
+}
+
+
+/**
+ * Construct the GL_EXTENSIONS string. Called the first time that
+ * glGetString(GL_EXTENSIONS) is called.
+ */
+GLubyte*
+_mesa_make_extension_string(struct gl_context *ctx)
+{
+ /* The extension string. */
+ char *exts = 0;
+ /* Length of extension string. */
+ size_t length = 0;
+ /* String of extra extensions. */
+ char *extra_extensions = get_extension_override(ctx);
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ const struct extension *i;
+
+ /* Compute length of the extension string. */
+ for (i = extension_table; i->name != 0; ++i) {
+ if (base[i->offset] && (i->api_set & (1 << ctx->API))) {
+ length += strlen(i->name) + 1; /* +1 for space */
+ }
+ }
+ if (extra_extensions != NULL)
+ length += 1 + strlen(extra_extensions); /* +1 for space */
+
+ exts = (char *) calloc(length + 1, sizeof(char));
+ if (exts == NULL) {
+ free(extra_extensions);
+ return NULL;
+ }
+
+ /* Build the extension string.*/
+ for (i = extension_table; i->name != 0; ++i) {
+ if (base[i->offset] && (i->api_set & (1 << ctx->API))) {
+ strcat(exts, i->name);
+ strcat(exts, " ");
+ }
+ }
+ if (extra_extensions != 0) {
+ strcat(exts, extra_extensions);
+ free(extra_extensions);
+ }
+
+ return (GLubyte *) exts;
+}
+
+/**
+ * Return number of enabled extensions.
+ */
+GLuint
+_mesa_get_extension_count(struct gl_context *ctx)
+{
+ GLboolean *base;
+ const struct extension *i;
+
+ /* only count once */
+ if (ctx->Extensions.Count != 0)
+ return ctx->Extensions.Count;
+
+ base = (GLboolean *) &ctx->Extensions;
+ for (i = extension_table; i->name != 0; ++i) {
+ if (base[i->offset]) {
+ ctx->Extensions.Count++;
+ }
+ }
+ return ctx->Extensions.Count;
+}
+
+/**
+ * Return name of i-th enabled extension
+ */
+const GLubyte *
+_mesa_get_enabled_extension(struct gl_context *ctx, GLuint index)
+{
+ const GLboolean *base;
+ size_t n;
+ const struct extension *i;
+
+ if (index < 0)
+ return NULL;
+
+ base = (GLboolean*) &ctx->Extensions;
+ n = 0;
+ for (i = extension_table; i->name != 0; ++i) {
+ if (n == index && base[i->offset]) {
+ return (GLubyte*) i->name;
+ } else if (base[i->offset]) {
+ ++n;
+ }
+ }
+
+ return NULL;
+}
diff --git a/mesalib/src/mesa/main/fbobject.c b/mesalib/src/mesa/main/fbobject.c index 2fe84754b..f20689b82 100644 --- a/mesalib/src/mesa/main/fbobject.c +++ b/mesalib/src/mesa/main/fbobject.c @@ -1,2486 +1,2487 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * GL_EXT/ARB_framebuffer_object extensions - * - * Authors: - * Brian Paul - */ - - -#include "buffers.h" -#include "context.h" -#include "enums.h" -#include "fbobject.h" -#include "formats.h" -#include "framebuffer.h" -#include "hash.h" -#include "macros.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "renderbuffer.h" -#include "state.h" -#include "teximage.h" -#include "texobj.h" - - -/** Set this to 1 to help debug FBO incompleteness problems */ -#define DEBUG_FBO 0 - -/** Set this to 1 to debug/log glBlitFramebuffer() calls */ -#define DEBUG_BLIT 0 - - -/** - * Notes: - * - * None of the GL_EXT_framebuffer_object functions are compiled into - * display lists. - */ - - - -/* - * When glGenRender/FramebuffersEXT() is called we insert pointers to - * these placeholder objects into the hash table. - * Later, when the object ID is first bound, we replace the placeholder - * with the real frame/renderbuffer. - */ -static struct gl_framebuffer DummyFramebuffer; -static struct gl_renderbuffer DummyRenderbuffer; - -/* We bind this framebuffer when applications pass a NULL - * drawable/surface in make current. */ -static struct gl_framebuffer IncompleteFramebuffer; - - -#define IS_CUBE_FACE(TARGET) \ - ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \ - (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) - - -static void -delete_dummy_renderbuffer(struct gl_renderbuffer *rb) -{ - /* no op */ -} - -static void -delete_dummy_framebuffer(struct gl_framebuffer *fb) -{ - /* no op */ -} - - -void -_mesa_init_fbobjects(struct gl_context *ctx) -{ - _glthread_INIT_MUTEX(DummyFramebuffer.Mutex); - _glthread_INIT_MUTEX(DummyRenderbuffer.Mutex); - _glthread_INIT_MUTEX(IncompleteFramebuffer.Mutex); - DummyFramebuffer.Delete = delete_dummy_framebuffer; - DummyRenderbuffer.Delete = delete_dummy_renderbuffer; - IncompleteFramebuffer.Delete = delete_dummy_framebuffer; -} - -struct gl_framebuffer * -_mesa_get_incomplete_framebuffer(void) -{ - return &IncompleteFramebuffer; -} - -/** - * Helper routine for getting a gl_renderbuffer. - */ -struct gl_renderbuffer * -_mesa_lookup_renderbuffer(struct gl_context *ctx, GLuint id) -{ - struct gl_renderbuffer *rb; - - if (id == 0) - return NULL; - - rb = (struct gl_renderbuffer *) - _mesa_HashLookup(ctx->Shared->RenderBuffers, id); - return rb; -} - - -/** - * Helper routine for getting a gl_framebuffer. - */ -struct gl_framebuffer * -_mesa_lookup_framebuffer(struct gl_context *ctx, GLuint id) -{ - struct gl_framebuffer *fb; - - if (id == 0) - return NULL; - - fb = (struct gl_framebuffer *) - _mesa_HashLookup(ctx->Shared->FrameBuffers, id); - return fb; -} - - -/** - * Mark the given framebuffer as invalid. This will force the - * test for framebuffer completeness to be done before the framebuffer - * is used. - */ -static void -invalidate_framebuffer(struct gl_framebuffer *fb) -{ - fb->_Status = 0; /* "indeterminate" */ -} - - -/** - * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding - * gl_renderbuffer_attachment object. - * This function is only used for user-created FB objects, not the - * default / window-system FB object. - * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to - * the depth buffer attachment point. - */ -struct gl_renderbuffer_attachment * -_mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb, - GLenum attachment) -{ - GLuint i; - - assert(fb->Name > 0); - - switch (attachment) { - case GL_COLOR_ATTACHMENT0_EXT: - case GL_COLOR_ATTACHMENT1_EXT: - case GL_COLOR_ATTACHMENT2_EXT: - case GL_COLOR_ATTACHMENT3_EXT: - case GL_COLOR_ATTACHMENT4_EXT: - case GL_COLOR_ATTACHMENT5_EXT: - case GL_COLOR_ATTACHMENT6_EXT: - case GL_COLOR_ATTACHMENT7_EXT: - case GL_COLOR_ATTACHMENT8_EXT: - case GL_COLOR_ATTACHMENT9_EXT: - case GL_COLOR_ATTACHMENT10_EXT: - case GL_COLOR_ATTACHMENT11_EXT: - case GL_COLOR_ATTACHMENT12_EXT: - case GL_COLOR_ATTACHMENT13_EXT: - case GL_COLOR_ATTACHMENT14_EXT: - case GL_COLOR_ATTACHMENT15_EXT: - i = attachment - GL_COLOR_ATTACHMENT0_EXT; - if (i >= ctx->Const.MaxColorAttachments) { - return NULL; - } - return &fb->Attachment[BUFFER_COLOR0 + i]; - case GL_DEPTH_STENCIL_ATTACHMENT: - /* fall-through */ - case GL_DEPTH_BUFFER: - /* fall-through / new in GL 3.0 */ - case GL_DEPTH_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_DEPTH]; - case GL_STENCIL_BUFFER: - /* fall-through / new in GL 3.0 */ - case GL_STENCIL_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_STENCIL]; - default: - return NULL; - } -} - - -/** - * As above, but only used for getting attachments of the default / - * window-system framebuffer (not user-created framebuffer objects). - */ -static struct gl_renderbuffer_attachment * -_mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb, - GLenum attachment) -{ - assert(fb->Name == 0); - - switch (attachment) { - case GL_FRONT_LEFT: - return &fb->Attachment[BUFFER_FRONT_LEFT]; - case GL_FRONT_RIGHT: - return &fb->Attachment[BUFFER_FRONT_RIGHT]; - case GL_BACK_LEFT: - return &fb->Attachment[BUFFER_BACK_LEFT]; - case GL_BACK_RIGHT: - return &fb->Attachment[BUFFER_BACK_RIGHT]; - case GL_AUX0: - if (fb->Visual.numAuxBuffers == 1) { - return &fb->Attachment[BUFFER_AUX0]; - } - return NULL; - case GL_DEPTH_BUFFER: - /* fall-through / new in GL 3.0 */ - case GL_DEPTH_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_DEPTH]; - case GL_STENCIL_BUFFER: - /* fall-through / new in GL 3.0 */ - case GL_STENCIL_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_STENCIL]; - default: - return NULL; - } -} - - - -/** - * Remove any texture or renderbuffer attached to the given attachment - * point. Update reference counts, etc. - */ -void -_mesa_remove_attachment(struct gl_context *ctx, - struct gl_renderbuffer_attachment *att) -{ - if (att->Type == GL_TEXTURE) { - ASSERT(att->Texture); - if (ctx->Driver.FinishRenderTexture) { - /* tell driver that we're done rendering to this texture. */ - ctx->Driver.FinishRenderTexture(ctx, att); - } - _mesa_reference_texobj(&att->Texture, NULL); /* unbind */ - ASSERT(!att->Texture); - } - if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) { - ASSERT(!att->Texture); - _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */ - ASSERT(!att->Renderbuffer); - } - att->Type = GL_NONE; - att->Complete = GL_TRUE; -} - - -/** - * Bind a texture object to an attachment point. - * The previous binding, if any, will be removed first. - */ -void -_mesa_set_texture_attachment(struct gl_context *ctx, - struct gl_framebuffer *fb, - struct gl_renderbuffer_attachment *att, - struct gl_texture_object *texObj, - GLenum texTarget, GLuint level, GLuint zoffset) -{ - if (att->Texture == texObj) { - /* re-attaching same texture */ - ASSERT(att->Type == GL_TEXTURE); - if (ctx->Driver.FinishRenderTexture) - ctx->Driver.FinishRenderTexture(ctx, att); - } - else { - /* new attachment */ - if (ctx->Driver.FinishRenderTexture && att->Texture) - ctx->Driver.FinishRenderTexture(ctx, att); - _mesa_remove_attachment(ctx, att); - att->Type = GL_TEXTURE; - assert(!att->Texture); - _mesa_reference_texobj(&att->Texture, texObj); - } - - /* always update these fields */ - att->TextureLevel = level; - att->CubeMapFace = _mesa_tex_target_to_face(texTarget); - att->Zoffset = zoffset; - att->Complete = GL_FALSE; - - if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) { - ctx->Driver.RenderTexture(ctx, fb, att); - } - - invalidate_framebuffer(fb); -} - - -/** - * Bind a renderbuffer to an attachment point. - * The previous binding, if any, will be removed first. - */ -void -_mesa_set_renderbuffer_attachment(struct gl_context *ctx, - struct gl_renderbuffer_attachment *att, - struct gl_renderbuffer *rb) -{ - /* XXX check if re-doing same attachment, exit early */ - _mesa_remove_attachment(ctx, att); - att->Type = GL_RENDERBUFFER_EXT; - att->Texture = NULL; /* just to be safe */ - att->Complete = GL_FALSE; - _mesa_reference_renderbuffer(&att->Renderbuffer, rb); -} - - -/** - * Fallback for ctx->Driver.FramebufferRenderbuffer() - * Attach a renderbuffer object to a framebuffer object. - */ -void -_mesa_framebuffer_renderbuffer(struct gl_context *ctx, - struct gl_framebuffer *fb, - GLenum attachment, struct gl_renderbuffer *rb) -{ - struct gl_renderbuffer_attachment *att; - - _glthread_LOCK_MUTEX(fb->Mutex); - - att = _mesa_get_attachment(ctx, fb, attachment); - ASSERT(att); - if (rb) { - _mesa_set_renderbuffer_attachment(ctx, att, rb); - if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) { - /* do stencil attachment here (depth already done above) */ - att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT); - assert(att); - _mesa_set_renderbuffer_attachment(ctx, att, rb); - } - } - else { - _mesa_remove_attachment(ctx, att); - } - - invalidate_framebuffer(fb); - - _glthread_UNLOCK_MUTEX(fb->Mutex); -} - - -/** - * Fallback for ctx->Driver.ValidateFramebuffer() - * Check if the renderbuffer's formats are supported by the software - * renderer. - * Drivers should probably override this. - */ -void -_mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - gl_buffer_index buf; - for (buf = 0; buf < BUFFER_COUNT; buf++) { - const struct gl_renderbuffer *rb = fb->Attachment[buf].Renderbuffer; - if (rb) { - switch (rb->_BaseFormat) { - case GL_ALPHA: - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE: - case GL_INTENSITY: - case GL_RED: - case GL_RG: - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED; - return; - default: - /* render buffer format is supported by software rendering */ - ; - } - } - } -} - - -/** - * For debug only. - */ -static void -att_incomplete(const char *msg) -{ -#if DEBUG_FBO - _mesa_debug(NULL, "attachment incomplete: %s\n", msg); -#else - (void) msg; -#endif -} - - -/** - * For debug only. - */ -static void -fbo_incomplete(const char *msg, int index) -{ -#if DEBUG_FBO - _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index); -#else - (void) msg; - (void) index; -#endif -} - - -/** - * Is the given base format a legal format for a color renderbuffer? - */ -GLboolean -_mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat) -{ - switch (baseFormat) { - case GL_RGB: - case GL_RGBA: - return GL_TRUE; - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_INTENSITY: - case GL_ALPHA: - return ctx->Extensions.ARB_framebuffer_object; - case GL_RED: - case GL_RG: - return ctx->Extensions.ARB_texture_rg; - default: - return GL_FALSE; - } -} - - -/** - * Is the given base format a legal format for a depth/stencil renderbuffer? - */ -static GLboolean -is_legal_depth_format(const struct gl_context *ctx, GLenum baseFormat) -{ - switch (baseFormat) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_STENCIL_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if an attachment point is complete and update its Complete field. - * \param format if GL_COLOR, this is a color attachment point, - * if GL_DEPTH, this is a depth component attachment point, - * if GL_STENCIL, this is a stencil component attachment point. - */ -static void -test_attachment_completeness(const struct gl_context *ctx, GLenum format, - struct gl_renderbuffer_attachment *att) -{ - assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL); - - /* assume complete */ - att->Complete = GL_TRUE; - - /* Look for reasons why the attachment might be incomplete */ - if (att->Type == GL_TEXTURE) { - const struct gl_texture_object *texObj = att->Texture; - struct gl_texture_image *texImage; - GLenum baseFormat; - - if (!texObj) { - att_incomplete("no texobj"); - att->Complete = GL_FALSE; - return; - } - - texImage = texObj->Image[att->CubeMapFace][att->TextureLevel]; - if (!texImage) { - att_incomplete("no teximage"); - att->Complete = GL_FALSE; - return; - } - if (texImage->Width < 1 || texImage->Height < 1) { - att_incomplete("teximage width/height=0"); - printf("texobj = %u\n", texObj->Name); - printf("level = %d\n", att->TextureLevel); - att->Complete = GL_FALSE; - return; - } - if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) { - att_incomplete("bad z offset"); - att->Complete = GL_FALSE; - return; - } - - baseFormat = _mesa_get_format_base_format(texImage->TexFormat); - - if (format == GL_COLOR) { - if (!_mesa_is_legal_color_format(ctx, baseFormat)) { - att_incomplete("bad format"); - att->Complete = GL_FALSE; - return; - } - if (_mesa_is_format_compressed(texImage->TexFormat)) { - att_incomplete("compressed internalformat"); - att->Complete = GL_FALSE; - return; - } - } - else if (format == GL_DEPTH) { - if (baseFormat == GL_DEPTH_COMPONENT) { - /* OK */ - } - else if (ctx->Extensions.EXT_packed_depth_stencil && - ctx->Extensions.ARB_depth_texture && - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* OK */ - } - else { - att->Complete = GL_FALSE; - att_incomplete("bad depth format"); - return; - } - } - else { - ASSERT(format == GL_STENCIL); - if (ctx->Extensions.EXT_packed_depth_stencil && - ctx->Extensions.ARB_depth_texture && - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* OK */ - } - else { - /* no such thing as stencil-only textures */ - att_incomplete("illegal stencil texture"); - att->Complete = GL_FALSE; - return; - } - } - } - else if (att->Type == GL_RENDERBUFFER_EXT) { - const GLenum baseFormat = - _mesa_get_format_base_format(att->Renderbuffer->Format); - - ASSERT(att->Renderbuffer); - if (!att->Renderbuffer->InternalFormat || - att->Renderbuffer->Width < 1 || - att->Renderbuffer->Height < 1) { - att_incomplete("0x0 renderbuffer"); - att->Complete = GL_FALSE; - return; - } - if (format == GL_COLOR) { - if (!_mesa_is_legal_color_format(ctx, baseFormat)) { - att_incomplete("bad renderbuffer color format"); - att->Complete = GL_FALSE; - return; - } - } - else if (format == GL_DEPTH) { - if (baseFormat == GL_DEPTH_COMPONENT) { - /* OK */ - } - else if (ctx->Extensions.EXT_packed_depth_stencil && - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* OK */ - } - else { - att_incomplete("bad renderbuffer depth format"); - att->Complete = GL_FALSE; - return; - } - } - else { - assert(format == GL_STENCIL); - if (baseFormat == GL_STENCIL_INDEX) { - /* OK */ - } - else if (ctx->Extensions.EXT_packed_depth_stencil && - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* OK */ - } - else { - att->Complete = GL_FALSE; - att_incomplete("bad renderbuffer stencil format"); - return; - } - } - } - else { - ASSERT(att->Type == GL_NONE); - /* complete */ - return; - } -} - - -/** - * Test if the given framebuffer object is complete and update its - * Status field with the results. - * Calls the ctx->Driver.ValidateFramebuffer() function to allow the - * driver to make hardware-specific validation/completeness checks. - * Also update the framebuffer's Width and Height fields if the - * framebuffer is complete. - */ -void -_mesa_test_framebuffer_completeness(struct gl_context *ctx, - struct gl_framebuffer *fb) -{ - GLuint numImages; - GLenum intFormat = GL_NONE; /* color buffers' internal format */ - GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0; - GLint numSamples = -1; - GLint i; - GLuint j; - - assert(fb->Name != 0); - - numImages = 0; - fb->Width = 0; - fb->Height = 0; - - /* Start at -2 to more easily loop over all attachment points. - * -2: depth buffer - * -1: stencil buffer - * >=0: color buffer - */ - for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) { - struct gl_renderbuffer_attachment *att; - GLenum f; - gl_format mesaFormat; - - /* - * XXX for ARB_fbo, only check color buffers that are named by - * GL_READ_BUFFER and GL_DRAW_BUFFERi. - */ - - /* check for attachment completeness - */ - if (i == -2) { - att = &fb->Attachment[BUFFER_DEPTH]; - test_attachment_completeness(ctx, GL_DEPTH, att); - if (!att->Complete) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT; - fbo_incomplete("depth attachment incomplete", -1); - return; - } - } - else if (i == -1) { - att = &fb->Attachment[BUFFER_STENCIL]; - test_attachment_completeness(ctx, GL_STENCIL, att); - if (!att->Complete) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT; - fbo_incomplete("stencil attachment incomplete", -1); - return; - } - } - else { - att = &fb->Attachment[BUFFER_COLOR0 + i]; - test_attachment_completeness(ctx, GL_COLOR, att); - if (!att->Complete) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT; - fbo_incomplete("color attachment incomplete", i); - return; - } - } - - /* get width, height, format of the renderbuffer/texture - */ - if (att->Type == GL_TEXTURE) { - const struct gl_texture_image *texImg - = att->Texture->Image[att->CubeMapFace][att->TextureLevel]; - minWidth = MIN2(minWidth, texImg->Width); - maxWidth = MAX2(maxWidth, texImg->Width); - minHeight = MIN2(minHeight, texImg->Height); - maxHeight = MAX2(maxHeight, texImg->Height); - f = texImg->_BaseFormat; - mesaFormat = texImg->TexFormat; - numImages++; - if (!_mesa_is_legal_color_format(ctx, f) && - !is_legal_depth_format(ctx, f)) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT; - fbo_incomplete("texture attachment incomplete", -1); - return; - } - } - else if (att->Type == GL_RENDERBUFFER_EXT) { - minWidth = MIN2(minWidth, att->Renderbuffer->Width); - maxWidth = MAX2(minWidth, att->Renderbuffer->Width); - minHeight = MIN2(minHeight, att->Renderbuffer->Height); - maxHeight = MAX2(minHeight, att->Renderbuffer->Height); - f = att->Renderbuffer->InternalFormat; - mesaFormat = att->Renderbuffer->Format; - numImages++; - } - else { - assert(att->Type == GL_NONE); - continue; - } - - if (numSamples < 0) { - /* first buffer */ - numSamples = att->Renderbuffer->NumSamples; - } - - /* check if integer color */ - fb->_IntegerColor = _mesa_is_format_integer_color(mesaFormat); - - /* Error-check width, height, format, samples - */ - if (numImages == 1) { - /* save format, num samples */ - if (i >= 0) { - intFormat = f; - } - } - else { - if (!ctx->Extensions.ARB_framebuffer_object) { - /* check that width, height, format are same */ - if (minWidth != maxWidth || minHeight != maxHeight) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT; - fbo_incomplete("width or height mismatch", -1); - return; - } - /* check that all color buffer have same format */ - if (intFormat != GL_NONE && f != intFormat) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT; - fbo_incomplete("format mismatch", -1); - return; - } - } - if (att->Renderbuffer && - att->Renderbuffer->NumSamples != numSamples) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE; - fbo_incomplete("inconsistant number of samples", i); - return; - } - - } - } - -#if FEATURE_GL - if (ctx->API == API_OPENGL) { - /* Check that all DrawBuffers are present */ - for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) { - if (fb->ColorDrawBuffer[j] != GL_NONE) { - const struct gl_renderbuffer_attachment *att - = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]); - assert(att); - if (att->Type == GL_NONE) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT; - fbo_incomplete("missing drawbuffer", j); - return; - } - } - } - - /* Check that the ReadBuffer is present */ - if (fb->ColorReadBuffer != GL_NONE) { - const struct gl_renderbuffer_attachment *att - = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer); - assert(att); - if (att->Type == GL_NONE) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT; - fbo_incomplete("missing readbuffer", -1); - return; - } - } - } -#else - (void) j; -#endif - - if (numImages == 0) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT; - fbo_incomplete("no attachments", -1); - return; - } - - /* Provisionally set status = COMPLETE ... */ - fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT; - - /* ... but the driver may say the FB is incomplete. - * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED - * if anything. - */ - if (ctx->Driver.ValidateFramebuffer) { - ctx->Driver.ValidateFramebuffer(ctx, fb); - if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { - fbo_incomplete("driver marked FBO as incomplete", -1); - } - } - - if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) { - /* - * Note that if ARB_framebuffer_object is supported and the attached - * renderbuffers/textures are different sizes, the framebuffer - * width/height will be set to the smallest width/height. - */ - fb->Width = minWidth; - fb->Height = minHeight; - - /* finally, update the visual info for the framebuffer */ - _mesa_update_framebuffer_visual(ctx, fb); - } -} - - -GLboolean GLAPIENTRY -_mesa_IsRenderbufferEXT(GLuint renderbuffer) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - if (renderbuffer) { - struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer); - if (rb != NULL && rb != &DummyRenderbuffer) - return GL_TRUE; - } - return GL_FALSE; -} - - -void GLAPIENTRY -_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer) -{ - struct gl_renderbuffer *newRb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)"); - return; - } - - /* No need to flush here since the render buffer binding has no - * effect on rendering state. - */ - - if (renderbuffer) { - newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer); - if (newRb == &DummyRenderbuffer) { - /* ID was reserved, but no real renderbuffer object made yet */ - newRb = NULL; - } - else if (!newRb && ctx->Extensions.ARB_framebuffer_object) { - /* All RB IDs must be Gen'd */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)"); - return; - } - - if (!newRb) { - /* create new renderbuffer object */ - newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer); - if (!newRb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT"); - return; - } - ASSERT(newRb->AllocStorage); - _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb); - newRb->RefCount = 1; /* referenced by hash table */ - } - } - else { - newRb = NULL; - } - - ASSERT(newRb != &DummyRenderbuffer); - - _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb); -} - - -/** - * If the given renderbuffer is anywhere attached to the framebuffer, detach - * the renderbuffer. - * This is used when a renderbuffer object is deleted. - * The spec calls for unbinding. - */ -static void -detach_renderbuffer(struct gl_context *ctx, - struct gl_framebuffer *fb, - struct gl_renderbuffer *rb) -{ - GLuint i; - for (i = 0; i < BUFFER_COUNT; i++) { - if (fb->Attachment[i].Renderbuffer == rb) { - _mesa_remove_attachment(ctx, &fb->Attachment[i]); - } - } - invalidate_framebuffer(fb); -} - - -void GLAPIENTRY -_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers) -{ - GLint i; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - for (i = 0; i < n; i++) { - if (renderbuffers[i] > 0) { - struct gl_renderbuffer *rb; - rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]); - if (rb) { - /* check if deleting currently bound renderbuffer object */ - if (rb == ctx->CurrentRenderbuffer) { - /* bind default */ - ASSERT(rb->RefCount >= 2); - _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0); - } - - if (ctx->DrawBuffer->Name) { - detach_renderbuffer(ctx, ctx->DrawBuffer, rb); - } - if (ctx->ReadBuffer->Name && ctx->ReadBuffer != ctx->DrawBuffer) { - detach_renderbuffer(ctx, ctx->ReadBuffer, rb); - } - - /* Remove from hash table immediately, to free the ID. - * But the object will not be freed until it's no longer - * referenced anywhere else. - */ - _mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]); - - if (rb != &DummyRenderbuffer) { - /* no longer referenced by hash table */ - _mesa_reference_renderbuffer(&rb, NULL); - } - } - } - } -} - - -void GLAPIENTRY -_mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)"); - return; - } - - if (!renderbuffers) - return; - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n); - - for (i = 0; i < n; i++) { - GLuint name = first + i; - renderbuffers[i] = name; - /* insert dummy placeholder into hash table */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - } -} - - -/** - * Given an internal format token for a render buffer, return the - * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, - * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE, - * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc). - * - * This is similar to _mesa_base_tex_format() but the set of valid - * internal formats is different. - * - * Note that even if a format is determined to be legal here, validation - * of the FBO may fail if the format is not suppoted by the driver/GPU. - * - * \param internalFormat as passed to glRenderbufferStorage() - * \return the base internal format, or 0 if internalFormat is illegal - */ -GLenum -_mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat) -{ - /* - * Notes: some formats such as alpha, luminance, etc. were added - * with GL_ARB_framebuffer_object. - */ - switch (internalFormat) { - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - case GL_ALPHA12: - case GL_ALPHA16: - return ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0; - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - case GL_LUMINANCE12: - case GL_LUMINANCE16: - return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0; - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE4_ALPHA4: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0; - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - case GL_INTENSITY12: - case GL_INTENSITY16: - return ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0; - case GL_RGB: - case GL_R3_G3_B2: - case GL_RGB4: - case GL_RGB5: - case GL_RGB8: - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - case GL_SRGB8_EXT: - return GL_RGB; - case GL_RGBA: - case GL_RGBA2: - case GL_RGBA4: - case GL_RGB5_A1: - case GL_RGBA8: - case GL_RGB10_A2: - case GL_RGBA12: - case GL_RGBA16: - case GL_RGBA16_SNORM: - case GL_SRGB8_ALPHA8_EXT: - return GL_RGBA; - case GL_STENCIL_INDEX: - case GL_STENCIL_INDEX1_EXT: - case GL_STENCIL_INDEX4_EXT: - case GL_STENCIL_INDEX8_EXT: - case GL_STENCIL_INDEX16_EXT: - return GL_STENCIL_INDEX; - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT16: - case GL_DEPTH_COMPONENT24: - case GL_DEPTH_COMPONENT32: - return GL_DEPTH_COMPONENT; - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - if (ctx->Extensions.EXT_packed_depth_stencil) - return GL_DEPTH_STENCIL_EXT; - else - return 0; - case GL_RED: - case GL_R8: - case GL_R16: - return ctx->Extensions.ARB_texture_rg ? GL_RED : 0; - case GL_RG: - case GL_RG8: - case GL_RG16: - return ctx->Extensions.ARB_texture_rg ? GL_RG : 0; - /* XXX add floating point and integer formats eventually */ - default: - return 0; - } -} - - -/** sentinal value, see below */ -#define NO_SAMPLES 1000 - - -/** - * Helper function used by _mesa_RenderbufferStorageEXT() and - * _mesa_RenderbufferStorageMultisample(). - * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT(). - */ -static void -renderbuffer_storage(GLenum target, GLenum internalFormat, - GLsizei width, GLsizei height, GLsizei samples) -{ - const char *func = samples == NO_SAMPLES ? - "glRenderbufferStorage" : "RenderbufferStorageMultisample"; - struct gl_renderbuffer *rb; - GLenum baseFormat; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func); - return; - } - - baseFormat = _mesa_base_fbo_format(ctx, internalFormat); - if (baseFormat == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func); - return; - } - - if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func); - return; - } - - if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func); - return; - } - - if (samples == NO_SAMPLES) { - /* NumSamples == 0 indicates non-multisampling */ - samples = 0; - } - else if (samples > (GLsizei) ctx->Const.MaxSamples) { - /* note: driver may choose to use more samples than what's requested */ - _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func); - return; - } - - rb = ctx->CurrentRenderbuffer; - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s", func); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (rb->InternalFormat == internalFormat && - rb->Width == (GLuint) width && - rb->Height == (GLuint) height) { - /* no change in allocation needed */ - return; - } - - /* These MUST get set by the AllocStorage func */ - rb->Format = MESA_FORMAT_NONE; - rb->NumSamples = samples; - - /* Now allocate the storage */ - ASSERT(rb->AllocStorage); - if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) { - /* No error - check/set fields now */ - assert(rb->Format != MESA_FORMAT_NONE); - assert(rb->Width == (GLuint) width); - assert(rb->Height == (GLuint) height); - rb->InternalFormat = internalFormat; - rb->_BaseFormat = baseFormat; - assert(rb->_BaseFormat != 0); - } - else { - /* Probably ran out of memory - clear the fields */ - rb->Width = 0; - rb->Height = 0; - rb->Format = MESA_FORMAT_NONE; - rb->InternalFormat = GL_NONE; - rb->_BaseFormat = GL_NONE; - rb->NumSamples = 0; - } - - /* - test_framebuffer_completeness(ctx, fb); - */ - /* XXX if this renderbuffer is attached anywhere, invalidate attachment - * points??? - */ -} - - -#if FEATURE_OES_EGL_image -void GLAPIENTRY -_mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image) -{ - struct gl_renderbuffer *rb; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.OES_EGL_image) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glEGLImageTargetRenderbufferStorageOES(unsupported)"); - return; - } - - if (target != GL_RENDERBUFFER) { - _mesa_error(ctx, GL_INVALID_ENUM, - "EGLImageTargetRenderbufferStorageOES"); - return; - } - - rb = ctx->CurrentRenderbuffer; - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "EGLImageTargetRenderbufferStorageOES"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image); -} -#endif - - -/** - * Helper function for _mesa_GetRenderbufferParameterivEXT() and - * _mesa_GetFramebufferAttachmentParameterivEXT() - * We have to be careful to respect the base format. For example, if a - * renderbuffer/texture was created with internalFormat=GL_RGB but the - * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE - * we need to return zero. - */ -static GLint -get_component_bits(GLenum pname, GLenum baseFormat, gl_format format) -{ - switch (pname) { - case GL_RENDERBUFFER_RED_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: - if (baseFormat == GL_RGB || baseFormat == GL_RGBA || - baseFormat == GL_RG || baseFormat == GL_RED) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_GREEN_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: - if (baseFormat == GL_RGB || baseFormat == GL_RGBA || baseFormat == GL_RG) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_BLUE_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: - if (baseFormat == GL_RGB || baseFormat == GL_RGBA) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_ALPHA_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: - if (baseFormat == GL_RGBA || baseFormat == GL_ALPHA || - baseFormat == GL_LUMINANCE_ALPHA) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_DEPTH_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: - if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_STENCIL_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: - if (baseFormat == GL_STENCIL_INDEX || baseFormat == GL_DEPTH_STENCIL) - return _mesa_get_format_bits(format, pname); - else - return 0; - default: - return 0; - } -} - - - -void GLAPIENTRY -_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat, - GLsizei width, GLsizei height) -{ - /* GL_ARB_fbo says calling this function is equivalent to calling - * glRenderbufferStorageMultisample() with samples=0. We pass in - * a token value here just for error reporting purposes. - */ - renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES); -} - - -void GLAPIENTRY -_mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples, - GLenum internalFormat, - GLsizei width, GLsizei height) -{ - renderbuffer_storage(target, internalFormat, width, height, samples); -} - - -/** - * OpenGL ES version of glRenderBufferStorage. - */ -void GLAPIENTRY -_es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat, - GLsizei width, GLsizei height) -{ - switch (internalFormat) { - case GL_RGB565: - /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */ - /* choose a closest format */ - internalFormat = GL_RGB5; - break; - default: - break; - } - - renderbuffer_storage(target, internalFormat, width, height, 0); -} - - -void GLAPIENTRY -_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params) -{ - struct gl_renderbuffer *rb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetRenderbufferParameterivEXT(target)"); - return; - } - - rb = ctx->CurrentRenderbuffer; - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetRenderbufferParameterivEXT"); - return; - } - - /* No need to flush here since we're just quering state which is - * not effected by rendering. - */ - - switch (pname) { - case GL_RENDERBUFFER_WIDTH_EXT: - *params = rb->Width; - return; - case GL_RENDERBUFFER_HEIGHT_EXT: - *params = rb->Height; - return; - case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT: - *params = rb->InternalFormat; - return; - case GL_RENDERBUFFER_RED_SIZE_EXT: - case GL_RENDERBUFFER_GREEN_SIZE_EXT: - case GL_RENDERBUFFER_BLUE_SIZE_EXT: - case GL_RENDERBUFFER_ALPHA_SIZE_EXT: - case GL_RENDERBUFFER_DEPTH_SIZE_EXT: - case GL_RENDERBUFFER_STENCIL_SIZE_EXT: - *params = get_component_bits(pname, rb->_BaseFormat, rb->Format); - break; - case GL_RENDERBUFFER_SAMPLES: - if (ctx->Extensions.ARB_framebuffer_object) { - *params = rb->NumSamples; - break; - } - /* fallthrough */ - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetRenderbufferParameterivEXT(target)"); - return; - } -} - - -GLboolean GLAPIENTRY -_mesa_IsFramebufferEXT(GLuint framebuffer) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - if (framebuffer) { - struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer); - if (rb != NULL && rb != &DummyFramebuffer) - return GL_TRUE; - } - return GL_FALSE; -} - - -/** - * Check if any of the attachments of the given framebuffer are textures - * (render to texture). Call ctx->Driver.RenderTexture() for such - * attachments. - */ -static void -check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - GLuint i; - ASSERT(ctx->Driver.RenderTexture); - - if (fb->Name == 0) - return; /* can't render to texture with winsys framebuffers */ - - for (i = 0; i < BUFFER_COUNT; i++) { - struct gl_renderbuffer_attachment *att = fb->Attachment + i; - struct gl_texture_object *texObj = att->Texture; - if (texObj - && texObj->Image[att->CubeMapFace][att->TextureLevel]) { - ctx->Driver.RenderTexture(ctx, fb, att); - } - } -} - - -/** - * Examine all the framebuffer's attachments to see if any are textures. - * If so, call ctx->Driver.FinishRenderTexture() for each texture to - * notify the device driver that the texture image may have changed. - */ -static void -check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - if (fb->Name == 0) - return; /* can't render to texture with winsys framebuffers */ - - if (ctx->Driver.FinishRenderTexture) { - GLuint i; - for (i = 0; i < BUFFER_COUNT; i++) { - struct gl_renderbuffer_attachment *att = fb->Attachment + i; - if (att->Texture && att->Renderbuffer) { - ctx->Driver.FinishRenderTexture(ctx, att); - } - } - } -} - - -void GLAPIENTRY -_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer) -{ - struct gl_framebuffer *newDrawFb, *newReadFb; - struct gl_framebuffer *oldDrawFb, *oldReadFb; - GLboolean bindReadBuf, bindDrawBuf; - GET_CURRENT_CONTEXT(ctx); - -#ifdef DEBUG - if (ctx->Extensions.ARB_framebuffer_object) { - ASSERT(ctx->Extensions.EXT_framebuffer_object); - ASSERT(ctx->Extensions.EXT_framebuffer_blit); - } -#endif - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.EXT_framebuffer_object) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBindFramebufferEXT(unsupported)"); - return; - } - - switch (target) { -#if FEATURE_EXT_framebuffer_blit - case GL_DRAW_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)"); - return; - } - bindDrawBuf = GL_TRUE; - bindReadBuf = GL_FALSE; - break; - case GL_READ_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)"); - return; - } - bindDrawBuf = GL_FALSE; - bindReadBuf = GL_TRUE; - break; -#endif - case GL_FRAMEBUFFER_EXT: - bindDrawBuf = GL_TRUE; - bindReadBuf = GL_TRUE; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)"); - return; - } - - if (framebuffer) { - /* Binding a user-created framebuffer object */ - newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer); - if (newDrawFb == &DummyFramebuffer) { - /* ID was reserved, but no real framebuffer object made yet */ - newDrawFb = NULL; - } - else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) { - /* All FBO IDs must be Gen'd */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)"); - return; - } - - if (!newDrawFb) { - /* create new framebuffer object */ - newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer); - if (!newDrawFb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT"); - return; - } - _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb); - } - newReadFb = newDrawFb; - } - else { - /* Binding the window system framebuffer (which was originally set - * with MakeCurrent). - */ - newDrawFb = ctx->WinSysDrawBuffer; - newReadFb = ctx->WinSysReadBuffer; - } - - ASSERT(newDrawFb); - ASSERT(newDrawFb != &DummyFramebuffer); - - /* save pointers to current/old framebuffers */ - oldDrawFb = ctx->DrawBuffer; - oldReadFb = ctx->ReadBuffer; - - /* check if really changing bindings */ - if (oldDrawFb == newDrawFb) - bindDrawBuf = GL_FALSE; - if (oldReadFb == newReadFb) - bindReadBuf = GL_FALSE; - - /* - * OK, now bind the new Draw/Read framebuffers, if they're changing. - * - * We also check if we're beginning and/or ending render-to-texture. - * When a framebuffer with texture attachments is unbound, call - * ctx->Driver.FinishRenderTexture(). - * When a framebuffer with texture attachments is bound, call - * ctx->Driver.RenderTexture(). - * - * Note that if the ReadBuffer has texture attachments we don't consider - * that a render-to-texture case. - */ - if (bindReadBuf) { - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - /* check if old readbuffer was render-to-texture */ - check_end_texture_render(ctx, oldReadFb); - - _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb); - } - - if (bindDrawBuf) { - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - /* check if old read/draw buffers were render-to-texture */ - if (!bindReadBuf) - check_end_texture_render(ctx, oldReadFb); - - if (oldDrawFb != oldReadFb) - check_end_texture_render(ctx, oldDrawFb); - - /* check if newly bound framebuffer has any texture attachments */ - check_begin_texture_render(ctx, newDrawFb); - - _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb); - } - - if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) { - ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb); - } -} - - -void GLAPIENTRY -_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers) -{ - GLint i; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - for (i = 0; i < n; i++) { - if (framebuffers[i] > 0) { - struct gl_framebuffer *fb; - fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]); - if (fb) { - ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]); - - /* check if deleting currently bound framebuffer object */ - if (ctx->Extensions.EXT_framebuffer_blit) { - /* separate draw/read binding points */ - if (fb == ctx->DrawBuffer) { - /* bind default */ - ASSERT(fb->RefCount >= 2); - _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0); - } - if (fb == ctx->ReadBuffer) { - /* bind default */ - ASSERT(fb->RefCount >= 2); - _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0); - } - } - else { - /* only one binding point for read/draw buffers */ - if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) { - /* bind default */ - ASSERT(fb->RefCount >= 2); - _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - } - } - - /* remove from hash table immediately, to free the ID */ - _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]); - - if (fb != &DummyFramebuffer) { - /* But the object will not be freed until it's no longer - * bound in any context. - */ - _mesa_reference_framebuffer(&fb, NULL); - } - } - } - } -} - - -void GLAPIENTRY -_mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)"); - return; - } - - if (!framebuffers) - return; - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n); - - for (i = 0; i < n; i++) { - GLuint name = first + i; - framebuffers[i] = name; - /* insert dummy placeholder into hash table */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - } -} - - - -GLenum GLAPIENTRY -_mesa_CheckFramebufferStatusEXT(GLenum target) -{ - struct gl_framebuffer *buffer; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); - - switch (target) { -#if FEATURE_EXT_framebuffer_blit - case GL_DRAW_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)"); - return 0; - } - buffer = ctx->DrawBuffer; - break; - case GL_READ_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)"); - return 0; - } - buffer = ctx->ReadBuffer; - break; -#endif - case GL_FRAMEBUFFER_EXT: - buffer = ctx->DrawBuffer; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)"); - return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */ - } - - if (buffer->Name == 0) { - /* The window system / default framebuffer is always complete */ - return GL_FRAMEBUFFER_COMPLETE_EXT; - } - - /* No need to flush here */ - - if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) { - _mesa_test_framebuffer_completeness(ctx, buffer); - } - - return buffer->_Status; -} - - - -/** - * Common code called by glFramebufferTexture1D/2D/3DEXT(). - */ -static void -framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target, - GLenum attachment, GLenum textarget, GLuint texture, - GLint level, GLint zoffset) -{ - struct gl_renderbuffer_attachment *att; - struct gl_texture_object *texObj = NULL; - struct gl_framebuffer *fb; - GLboolean error = GL_FALSE; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (target) { - case GL_READ_FRAMEBUFFER_EXT: - error = !ctx->Extensions.EXT_framebuffer_blit; - fb = ctx->ReadBuffer; - break; - case GL_DRAW_FRAMEBUFFER_EXT: - error = !ctx->Extensions.EXT_framebuffer_blit; - /* fall-through */ - case GL_FRAMEBUFFER_EXT: - fb = ctx->DrawBuffer; - break; - default: - error = GL_TRUE; - } - - if (error) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture%sEXT(target=0x%x)", caller, target); - return; - } - - ASSERT(fb); - - /* check framebuffer binding */ - if (fb->Name == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture%sEXT", caller); - return; - } - - - /* The textarget, level, and zoffset parameters are only validated if - * texture is non-zero. - */ - if (texture) { - GLboolean err = GL_TRUE; - - texObj = _mesa_lookup_texture(ctx, texture); - if (texObj != NULL) { - if (textarget == 0) { - /* XXX what's the purpose of this? */ - err = (texObj->Target != GL_TEXTURE_3D) && - (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) && - (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT); - } - else { - err = (texObj->Target == GL_TEXTURE_CUBE_MAP) - ? !IS_CUBE_FACE(textarget) - : (texObj->Target != textarget); - } - } - else { - /* can't render to a non-existant texture */ - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture%sEXT(non existant texture)", - caller); - return; - } - - if (err) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture%sEXT(texture target mismatch)", - caller); - return; - } - - if (texObj->Target == GL_TEXTURE_3D) { - const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); - if (zoffset < 0 || zoffset >= maxSize) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferTexture%sEXT(zoffset)", caller); - return; - } - } - else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) || - (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) { - if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferTexture%sEXT(layer)", caller); - return; - } - } - - if ((level < 0) || - (level >= _mesa_max_texture_levels(ctx, texObj->Target))) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferTexture%sEXT(level)", caller); - return; - } - } - - att = _mesa_get_attachment(ctx, fb, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture%sEXT(attachment)", caller); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - _glthread_LOCK_MUTEX(fb->Mutex); - if (texObj) { - _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget, - level, zoffset); - /* Set the render-to-texture flag. We'll check this flag in - * glTexImage() and friends to determine if we need to revalidate - * any FBOs that might be rendering into this texture. - * This flag never gets cleared since it's non-trivial to determine - * when all FBOs might be done rendering to this texture. That's OK - * though since it's uncommon to render to a texture then repeatedly - * call glTexImage() to change images in the texture. - */ - texObj->_RenderToTexture = GL_TRUE; - } - else { - _mesa_remove_attachment(ctx, att); - } - - invalidate_framebuffer(fb); - - _glthread_UNLOCK_MUTEX(fb->Mutex); -} - - - -void GLAPIENTRY -_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, GLint level) -{ - GET_CURRENT_CONTEXT(ctx); - - if ((texture != 0) && (textarget != GL_TEXTURE_1D)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture1DEXT(textarget)"); - return; - } - - framebuffer_texture(ctx, "1D", target, attachment, textarget, texture, - level, 0); -} - - -void GLAPIENTRY -_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, GLint level) -{ - GET_CURRENT_CONTEXT(ctx); - - if ((texture != 0) && - (textarget != GL_TEXTURE_2D) && - (textarget != GL_TEXTURE_RECTANGLE_ARB) && - (!IS_CUBE_FACE(textarget))) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture2DEXT(textarget=0x%x)", textarget); - return; - } - - framebuffer_texture(ctx, "2D", target, attachment, textarget, texture, - level, 0); -} - - -void GLAPIENTRY -_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, - GLint level, GLint zoffset) -{ - GET_CURRENT_CONTEXT(ctx); - - if ((texture != 0) && (textarget != GL_TEXTURE_3D)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture3DEXT(textarget)"); - return; - } - - framebuffer_texture(ctx, "3D", target, attachment, textarget, texture, - level, zoffset); -} - - -void GLAPIENTRY -_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment, - GLuint texture, GLint level, GLint layer) -{ - GET_CURRENT_CONTEXT(ctx); - - framebuffer_texture(ctx, "Layer", target, attachment, 0, texture, - level, layer); -} - - -void GLAPIENTRY -_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment, - GLenum renderbufferTarget, - GLuint renderbuffer) -{ - struct gl_renderbuffer_attachment *att; - struct gl_framebuffer *fb; - struct gl_renderbuffer *rb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (target) { -#if FEATURE_EXT_framebuffer_blit - case GL_DRAW_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(target)"); - return; - } - fb = ctx->DrawBuffer; - break; - case GL_READ_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(target)"); - return; - } - fb = ctx->ReadBuffer; - break; -#endif - case GL_FRAMEBUFFER_EXT: - fb = ctx->DrawBuffer; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(target)"); - return; - } - - if (renderbufferTarget != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(renderbufferTarget)"); - return; - } - - if (fb->Name == 0) { - /* Can't attach new renderbuffers to a window system framebuffer */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT"); - return; - } - - att = _mesa_get_attachment(ctx, fb, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(invalid attachment %s)", - _mesa_lookup_enum_by_nr(attachment)); - return; - } - - if (renderbuffer) { - rb = _mesa_lookup_renderbuffer(ctx, renderbuffer); - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferRenderbufferEXT(non-existant" - " renderbuffer %u)", renderbuffer); - return; - } - else if (rb == &DummyRenderbuffer) { - /* This is what NVIDIA does */ - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferRenderbufferEXT(renderbuffer %u)", - renderbuffer); - return; - } - } - else { - /* remove renderbuffer attachment */ - rb = NULL; - } - - if (attachment == GL_DEPTH_STENCIL_ATTACHMENT && - rb && rb->Format != MESA_FORMAT_NONE) { - /* make sure the renderbuffer is a depth/stencil format */ - const GLenum baseFormat = _mesa_get_format_base_format(rb->Format); - if (baseFormat != GL_DEPTH_STENCIL) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferRenderbufferEXT(renderbuffer" - " is not DEPTH_STENCIL format)"); - return; - } - } - - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - assert(ctx->Driver.FramebufferRenderbuffer); - ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb); - - /* Some subsequent GL commands may depend on the framebuffer's visual - * after the binding is updated. Update visual info now. - */ - _mesa_update_framebuffer_visual(ctx, fb); -} - - -void GLAPIENTRY -_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment, - GLenum pname, GLint *params) -{ - const struct gl_renderbuffer_attachment *att; - struct gl_framebuffer *buffer; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (target) { -#if FEATURE_EXT_framebuffer_blit - case GL_DRAW_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(target)"); - return; - } - buffer = ctx->DrawBuffer; - break; - case GL_READ_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(target)"); - return; - } - buffer = ctx->ReadBuffer; - break; -#endif - case GL_FRAMEBUFFER_EXT: - buffer = ctx->DrawBuffer; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(target)"); - return; - } - - if (buffer->Name == 0) { - /* the default / window-system FBO */ - att = _mesa_get_fb0_attachment(ctx, buffer, attachment); - } - else { - /* user-created framebuffer FBO */ - att = _mesa_get_attachment(ctx, buffer, attachment); - } - - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(attachment)"); - return; - } - - if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) { - /* the depth and stencil attachments must point to the same buffer */ - const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt; - depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT); - stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT); - if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL" - " attachments differ)"); - return; - } - } - - /* No need to flush here */ - - switch (pname) { - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT: - *params = buffer->Name == 0 ? GL_FRAMEBUFFER_DEFAULT : att->Type; - return; - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT: - if (att->Type == GL_RENDERBUFFER_EXT) { - *params = att->Renderbuffer->Name; - } - else if (att->Type == GL_TEXTURE) { - *params = att->Texture->Name; - } - else { - assert(att->Type == GL_NONE); - *params = 0; - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT: - if (att->Type == GL_TEXTURE) { - *params = att->TextureLevel; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT: - if (att->Type == GL_TEXTURE) { - if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) { - *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace; - } - else { - *params = 0; - } - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT: - if (att->Type == GL_TEXTURE) { - if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) { - *params = att->Zoffset; - } - else { - *params = 0; - } - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING: - if (!ctx->Extensions.ARB_framebuffer_object) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - else { - if (ctx->Extensions.EXT_framebuffer_sRGB) { - *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format); - } - else { - /* According to ARB_framebuffer_sRGB, we should return LINEAR - * if the sRGB conversion is unsupported. */ - *params = GL_LINEAR; - } - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE: - if (!ctx->Extensions.ARB_framebuffer_object) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - return; - } - else { - gl_format format = att->Renderbuffer->Format; - if (format == MESA_FORMAT_CI8 || format == MESA_FORMAT_S8) { - /* special cases */ - *params = GL_INDEX; - } - else { - *params = _mesa_get_format_datatype(format); - } - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: - if (!ctx->Extensions.ARB_framebuffer_object) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - else if (att->Texture) { - const struct gl_texture_image *texImage = - _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target, - att->TextureLevel); - if (texImage) { - *params = get_component_bits(pname, texImage->_BaseFormat, - texImage->TexFormat); - } - else { - *params = 0; - } - } - else if (att->Renderbuffer) { - *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat, - att->Renderbuffer->Format); - } - else { - *params = 0; - } - return; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - return; - } -} - - -void GLAPIENTRY -_mesa_GenerateMipmapEXT(GLenum target) -{ - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - switch (target) { - case GL_TEXTURE_1D: - case GL_TEXTURE_2D: - case GL_TEXTURE_3D: - case GL_TEXTURE_CUBE_MAP: - /* OK, legal value */ - break; - default: - /* XXX need to implement GL_TEXTURE_1D_ARRAY and GL_TEXTURE_2D_ARRAY */ - _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)"); - return; - } - - texObj = _mesa_get_current_tex_object(ctx, target); - - if (texObj->BaseLevel >= texObj->MaxLevel) { - /* nothing to do */ - return; - } - - if (texObj->Target == GL_TEXTURE_CUBE_MAP && - !_mesa_cube_complete(texObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGenerateMipmap(incomplete cube map)"); - return; - } - - _mesa_lock_texture(ctx, texObj); - if (target == GL_TEXTURE_CUBE_MAP) { - GLuint face; - for (face = 0; face < 6; face++) - ctx->Driver.GenerateMipmap(ctx, - GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face, - texObj); - } - else { - ctx->Driver.GenerateMipmap(ctx, target, texObj); - } - _mesa_unlock_texture(ctx, texObj); -} - - -#if FEATURE_EXT_framebuffer_blit - -static const struct gl_renderbuffer_attachment * -find_attachment(const struct gl_framebuffer *fb, const struct gl_renderbuffer *rb) -{ - GLuint i; - for (i = 0; i < Elements(fb->Attachment); i++) { - if (fb->Attachment[i].Renderbuffer == rb) - return &fb->Attachment[i]; - } - return NULL; -} - - - -/** - * Blit rectangular region, optionally from one framebuffer to another. - * - * Note, if the src buffer is multisampled and the dest is not, this is - * when the samples must be resolved to a single color. - */ -void GLAPIENTRY -_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield mask, GLenum filter) -{ - const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT | - GL_DEPTH_BUFFER_BIT | - GL_STENCIL_BUFFER_BIT); - const struct gl_framebuffer *readFb, *drawFb; - const struct gl_renderbuffer *colorReadRb, *colorDrawRb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (ctx->NewState) { - _mesa_update_state(ctx); - } - - readFb = ctx->ReadBuffer; - drawFb = ctx->DrawBuffer; - - if (!readFb || !drawFb) { - /* This will normally never happen but someday we may want to - * support MakeCurrent() with no drawables. - */ - return; - } - - /* check for complete framebuffers */ - if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT || - readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { - _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, - "glBlitFramebufferEXT(incomplete draw/read buffers)"); - return; - } - - if (filter != GL_NEAREST && filter != GL_LINEAR) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)"); - return; - } - - if (mask & ~legalMaskBits) { - _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)"); - return; - } - - /* depth/stencil must be blitted with nearest filtering */ - if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) - && filter != GL_NEAREST) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter"); - return; - } - - /* get color read/draw renderbuffers */ - if (mask & GL_COLOR_BUFFER_BIT) { - colorReadRb = readFb->_ColorReadBuffer; - colorDrawRb = drawFb->_ColorDrawBuffers[0]; - } - else { - colorReadRb = colorDrawRb = NULL; - } - - if (mask & GL_STENCIL_BUFFER_BIT) { - struct gl_renderbuffer *readRb = readFb->_StencilBuffer; - struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer; - if (!readRb || - !drawRb || - _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) != - _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(stencil buffer size mismatch"); - return; - } - } - - if (mask & GL_DEPTH_BUFFER_BIT) { - struct gl_renderbuffer *readRb = readFb->_DepthBuffer; - struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer; - if (!readRb || - !drawRb || - _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) != - _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(depth buffer size mismatch"); - return; - } - } - - if (readFb->Visual.samples > 0 && - drawFb->Visual.samples > 0 && - readFb->Visual.samples != drawFb->Visual.samples) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(mismatched samples"); - return; - } - - /* extra checks for multisample copies... */ - if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) { - /* src and dest region sizes must be the same */ - if (srcX1 - srcX0 != dstX1 - dstX0 || - srcY1 - srcY0 != dstY1 - dstY0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(bad src/dst multisample region sizes"); - return; - } - - /* color formats must match */ - if (colorReadRb && - colorDrawRb && - colorReadRb->Format != colorDrawRb->Format) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(bad src/dst multisample pixel formats"); - return; - } - } - - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT"); - return; - } - - /* Debug code */ - if (DEBUG_BLIT) { - printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d," - " 0x%x, 0x%x)\n", - srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, - mask, filter); - if (colorReadRb) { - const struct gl_renderbuffer_attachment *att; - - att = find_attachment(readFb, colorReadRb); - printf(" Src FBO %u RB %u (%dx%d) ", - readFb->Name, colorReadRb->Name, - colorReadRb->Width, colorReadRb->Height); - if (att && att->Texture) { - printf("Tex %u tgt 0x%x level %u face %u", - att->Texture->Name, - att->Texture->Target, - att->TextureLevel, - att->CubeMapFace); - } - printf("\n"); - - att = find_attachment(drawFb, colorDrawRb); - printf(" Dst FBO %u RB %u (%dx%d) ", - drawFb->Name, colorDrawRb->Name, - colorDrawRb->Width, colorDrawRb->Height); - if (att && att->Texture) { - printf("Tex %u tgt 0x%x level %u face %u", - att->Texture->Name, - att->Texture->Target, - att->TextureLevel, - att->CubeMapFace); - } - printf("\n"); - } - } - - ASSERT(ctx->Driver.BlitFramebuffer); - ctx->Driver.BlitFramebuffer(ctx, - srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, - mask, filter); -} -#endif /* FEATURE_EXT_framebuffer_blit */ - -#if FEATURE_ARB_geometry_shader4 -void GLAPIENTRY -_mesa_FramebufferTextureARB(GLenum target, GLenum attachment, - GLuint texture, GLint level) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTextureARB " - "not implemented!"); -} - -void GLAPIENTRY -_mesa_FramebufferTextureFaceARB(GLenum target, GLenum attachment, - GLuint texture, GLint level, GLenum face) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTextureFaceARB " - "not implemented!"); -} -#endif /* FEATURE_ARB_geometry_shader4 */ +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * GL_EXT/ARB_framebuffer_object extensions
+ *
+ * Authors:
+ * Brian Paul
+ */
+
+
+#include "buffers.h"
+#include "context.h"
+#include "enums.h"
+#include "fbobject.h"
+#include "formats.h"
+#include "framebuffer.h"
+#include "hash.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "renderbuffer.h"
+#include "state.h"
+#include "teximage.h"
+#include "texobj.h"
+
+
+/** Set this to 1 to help debug FBO incompleteness problems */
+#define DEBUG_FBO 0
+
+/** Set this to 1 to debug/log glBlitFramebuffer() calls */
+#define DEBUG_BLIT 0
+
+
+/**
+ * Notes:
+ *
+ * None of the GL_EXT_framebuffer_object functions are compiled into
+ * display lists.
+ */
+
+
+
+/*
+ * When glGenRender/FramebuffersEXT() is called we insert pointers to
+ * these placeholder objects into the hash table.
+ * Later, when the object ID is first bound, we replace the placeholder
+ * with the real frame/renderbuffer.
+ */
+static struct gl_framebuffer DummyFramebuffer;
+static struct gl_renderbuffer DummyRenderbuffer;
+
+/* We bind this framebuffer when applications pass a NULL
+ * drawable/surface in make current. */
+static struct gl_framebuffer IncompleteFramebuffer;
+
+
+#define IS_CUBE_FACE(TARGET) \
+ ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \
+ (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
+
+
+static void
+delete_dummy_renderbuffer(struct gl_renderbuffer *rb)
+{
+ /* no op */
+}
+
+static void
+delete_dummy_framebuffer(struct gl_framebuffer *fb)
+{
+ /* no op */
+}
+
+
+void
+_mesa_init_fbobjects(struct gl_context *ctx)
+{
+ _glthread_INIT_MUTEX(DummyFramebuffer.Mutex);
+ _glthread_INIT_MUTEX(DummyRenderbuffer.Mutex);
+ _glthread_INIT_MUTEX(IncompleteFramebuffer.Mutex);
+ DummyFramebuffer.Delete = delete_dummy_framebuffer;
+ DummyRenderbuffer.Delete = delete_dummy_renderbuffer;
+ IncompleteFramebuffer.Delete = delete_dummy_framebuffer;
+}
+
+struct gl_framebuffer *
+_mesa_get_incomplete_framebuffer(void)
+{
+ return &IncompleteFramebuffer;
+}
+
+/**
+ * Helper routine for getting a gl_renderbuffer.
+ */
+struct gl_renderbuffer *
+_mesa_lookup_renderbuffer(struct gl_context *ctx, GLuint id)
+{
+ struct gl_renderbuffer *rb;
+
+ if (id == 0)
+ return NULL;
+
+ rb = (struct gl_renderbuffer *)
+ _mesa_HashLookup(ctx->Shared->RenderBuffers, id);
+ return rb;
+}
+
+
+/**
+ * Helper routine for getting a gl_framebuffer.
+ */
+struct gl_framebuffer *
+_mesa_lookup_framebuffer(struct gl_context *ctx, GLuint id)
+{
+ struct gl_framebuffer *fb;
+
+ if (id == 0)
+ return NULL;
+
+ fb = (struct gl_framebuffer *)
+ _mesa_HashLookup(ctx->Shared->FrameBuffers, id);
+ return fb;
+}
+
+
+/**
+ * Mark the given framebuffer as invalid. This will force the
+ * test for framebuffer completeness to be done before the framebuffer
+ * is used.
+ */
+static void
+invalidate_framebuffer(struct gl_framebuffer *fb)
+{
+ fb->_Status = 0; /* "indeterminate" */
+}
+
+
+/**
+ * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
+ * gl_renderbuffer_attachment object.
+ * This function is only used for user-created FB objects, not the
+ * default / window-system FB object.
+ * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
+ * the depth buffer attachment point.
+ */
+struct gl_renderbuffer_attachment *
+_mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
+ GLenum attachment)
+{
+ GLuint i;
+
+ assert(fb->Name > 0);
+
+ switch (attachment) {
+ case GL_COLOR_ATTACHMENT0_EXT:
+ case GL_COLOR_ATTACHMENT1_EXT:
+ case GL_COLOR_ATTACHMENT2_EXT:
+ case GL_COLOR_ATTACHMENT3_EXT:
+ case GL_COLOR_ATTACHMENT4_EXT:
+ case GL_COLOR_ATTACHMENT5_EXT:
+ case GL_COLOR_ATTACHMENT6_EXT:
+ case GL_COLOR_ATTACHMENT7_EXT:
+ case GL_COLOR_ATTACHMENT8_EXT:
+ case GL_COLOR_ATTACHMENT9_EXT:
+ case GL_COLOR_ATTACHMENT10_EXT:
+ case GL_COLOR_ATTACHMENT11_EXT:
+ case GL_COLOR_ATTACHMENT12_EXT:
+ case GL_COLOR_ATTACHMENT13_EXT:
+ case GL_COLOR_ATTACHMENT14_EXT:
+ case GL_COLOR_ATTACHMENT15_EXT:
+ i = attachment - GL_COLOR_ATTACHMENT0_EXT;
+ if (i >= ctx->Const.MaxColorAttachments) {
+ return NULL;
+ }
+ return &fb->Attachment[BUFFER_COLOR0 + i];
+ case GL_DEPTH_STENCIL_ATTACHMENT:
+ /* fall-through */
+ case GL_DEPTH_BUFFER:
+ /* fall-through / new in GL 3.0 */
+ case GL_DEPTH_ATTACHMENT_EXT:
+ return &fb->Attachment[BUFFER_DEPTH];
+ case GL_STENCIL_BUFFER:
+ /* fall-through / new in GL 3.0 */
+ case GL_STENCIL_ATTACHMENT_EXT:
+ return &fb->Attachment[BUFFER_STENCIL];
+ default:
+ return NULL;
+ }
+}
+
+
+/**
+ * As above, but only used for getting attachments of the default /
+ * window-system framebuffer (not user-created framebuffer objects).
+ */
+static struct gl_renderbuffer_attachment *
+_mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
+ GLenum attachment)
+{
+ assert(fb->Name == 0);
+
+ switch (attachment) {
+ case GL_FRONT_LEFT:
+ return &fb->Attachment[BUFFER_FRONT_LEFT];
+ case GL_FRONT_RIGHT:
+ return &fb->Attachment[BUFFER_FRONT_RIGHT];
+ case GL_BACK_LEFT:
+ return &fb->Attachment[BUFFER_BACK_LEFT];
+ case GL_BACK_RIGHT:
+ return &fb->Attachment[BUFFER_BACK_RIGHT];
+ case GL_AUX0:
+ if (fb->Visual.numAuxBuffers == 1) {
+ return &fb->Attachment[BUFFER_AUX0];
+ }
+ return NULL;
+ case GL_DEPTH_BUFFER:
+ /* fall-through / new in GL 3.0 */
+ case GL_DEPTH_ATTACHMENT_EXT:
+ return &fb->Attachment[BUFFER_DEPTH];
+ case GL_STENCIL_BUFFER:
+ /* fall-through / new in GL 3.0 */
+ case GL_STENCIL_ATTACHMENT_EXT:
+ return &fb->Attachment[BUFFER_STENCIL];
+ default:
+ return NULL;
+ }
+}
+
+
+
+/**
+ * Remove any texture or renderbuffer attached to the given attachment
+ * point. Update reference counts, etc.
+ */
+void
+_mesa_remove_attachment(struct gl_context *ctx,
+ struct gl_renderbuffer_attachment *att)
+{
+ if (att->Type == GL_TEXTURE) {
+ ASSERT(att->Texture);
+ if (ctx->Driver.FinishRenderTexture) {
+ /* tell driver that we're done rendering to this texture. */
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ }
+ _mesa_reference_texobj(&att->Texture, NULL); /* unbind */
+ ASSERT(!att->Texture);
+ }
+ if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) {
+ ASSERT(!att->Texture);
+ _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */
+ ASSERT(!att->Renderbuffer);
+ }
+ att->Type = GL_NONE;
+ att->Complete = GL_TRUE;
+}
+
+
+/**
+ * Bind a texture object to an attachment point.
+ * The previous binding, if any, will be removed first.
+ */
+void
+_mesa_set_texture_attachment(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer_attachment *att,
+ struct gl_texture_object *texObj,
+ GLenum texTarget, GLuint level, GLuint zoffset)
+{
+ if (att->Texture == texObj) {
+ /* re-attaching same texture */
+ ASSERT(att->Type == GL_TEXTURE);
+ if (ctx->Driver.FinishRenderTexture)
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ }
+ else {
+ /* new attachment */
+ if (ctx->Driver.FinishRenderTexture && att->Texture)
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ _mesa_remove_attachment(ctx, att);
+ att->Type = GL_TEXTURE;
+ assert(!att->Texture);
+ _mesa_reference_texobj(&att->Texture, texObj);
+ }
+
+ /* always update these fields */
+ att->TextureLevel = level;
+ att->CubeMapFace = _mesa_tex_target_to_face(texTarget);
+ att->Zoffset = zoffset;
+ att->Complete = GL_FALSE;
+
+ if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {
+ ctx->Driver.RenderTexture(ctx, fb, att);
+ }
+
+ invalidate_framebuffer(fb);
+}
+
+
+/**
+ * Bind a renderbuffer to an attachment point.
+ * The previous binding, if any, will be removed first.
+ */
+void
+_mesa_set_renderbuffer_attachment(struct gl_context *ctx,
+ struct gl_renderbuffer_attachment *att,
+ struct gl_renderbuffer *rb)
+{
+ /* XXX check if re-doing same attachment, exit early */
+ _mesa_remove_attachment(ctx, att);
+ att->Type = GL_RENDERBUFFER_EXT;
+ att->Texture = NULL; /* just to be safe */
+ att->Complete = GL_FALSE;
+ _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
+}
+
+
+/**
+ * Fallback for ctx->Driver.FramebufferRenderbuffer()
+ * Attach a renderbuffer object to a framebuffer object.
+ */
+void
+_mesa_framebuffer_renderbuffer(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ GLenum attachment, struct gl_renderbuffer *rb)
+{
+ struct gl_renderbuffer_attachment *att;
+
+ _glthread_LOCK_MUTEX(fb->Mutex);
+
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ ASSERT(att);
+ if (rb) {
+ _mesa_set_renderbuffer_attachment(ctx, att, rb);
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+ /* do stencil attachment here (depth already done above) */
+ att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
+ assert(att);
+ _mesa_set_renderbuffer_attachment(ctx, att, rb);
+ }
+ }
+ else {
+ _mesa_remove_attachment(ctx, att);
+ }
+
+ invalidate_framebuffer(fb);
+
+ _glthread_UNLOCK_MUTEX(fb->Mutex);
+}
+
+
+/**
+ * Fallback for ctx->Driver.ValidateFramebuffer()
+ * Check if the renderbuffer's formats are supported by the software
+ * renderer.
+ * Drivers should probably override this.
+ */
+void
+_mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+ gl_buffer_index buf;
+ for (buf = 0; buf < BUFFER_COUNT; buf++) {
+ const struct gl_renderbuffer *rb = fb->Attachment[buf].Renderbuffer;
+ if (rb) {
+ switch (rb->_BaseFormat) {
+ case GL_ALPHA:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE:
+ case GL_INTENSITY:
+ case GL_RED:
+ case GL_RG:
+ fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
+ return;
+ default:
+ /* render buffer format is supported by software rendering */
+ ;
+ }
+ }
+ }
+}
+
+
+/**
+ * For debug only.
+ */
+static void
+att_incomplete(const char *msg)
+{
+#if DEBUG_FBO
+ _mesa_debug(NULL, "attachment incomplete: %s\n", msg);
+#else
+ (void) msg;
+#endif
+}
+
+
+/**
+ * For debug only.
+ */
+static void
+fbo_incomplete(const char *msg, int index)
+{
+#if DEBUG_FBO
+ _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
+#else
+ (void) msg;
+ (void) index;
+#endif
+}
+
+
+/**
+ * Is the given base format a legal format for a color renderbuffer?
+ */
+GLboolean
+_mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat)
+{
+ switch (baseFormat) {
+ case GL_RGB:
+ case GL_RGBA:
+ return GL_TRUE;
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ case GL_INTENSITY:
+ case GL_ALPHA:
+ return ctx->Extensions.ARB_framebuffer_object;
+ case GL_RED:
+ case GL_RG:
+ return ctx->Extensions.ARB_texture_rg;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Is the given base format a legal format for a depth/stencil renderbuffer?
+ */
+static GLboolean
+is_legal_depth_format(const struct gl_context *ctx, GLenum baseFormat)
+{
+ switch (baseFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_STENCIL_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if an attachment point is complete and update its Complete field.
+ * \param format if GL_COLOR, this is a color attachment point,
+ * if GL_DEPTH, this is a depth component attachment point,
+ * if GL_STENCIL, this is a stencil component attachment point.
+ */
+static void
+test_attachment_completeness(const struct gl_context *ctx, GLenum format,
+ struct gl_renderbuffer_attachment *att)
+{
+ assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL);
+
+ /* assume complete */
+ att->Complete = GL_TRUE;
+
+ /* Look for reasons why the attachment might be incomplete */
+ if (att->Type == GL_TEXTURE) {
+ const struct gl_texture_object *texObj = att->Texture;
+ struct gl_texture_image *texImage;
+ GLenum baseFormat;
+
+ if (!texObj) {
+ att_incomplete("no texobj");
+ att->Complete = GL_FALSE;
+ return;
+ }
+
+ texImage = texObj->Image[att->CubeMapFace][att->TextureLevel];
+ if (!texImage) {
+ att_incomplete("no teximage");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (texImage->Width < 1 || texImage->Height < 1) {
+ att_incomplete("teximage width/height=0");
+ printf("texobj = %u\n", texObj->Name);
+ printf("level = %d\n", att->TextureLevel);
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {
+ att_incomplete("bad z offset");
+ att->Complete = GL_FALSE;
+ return;
+ }
+
+ baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
+
+ if (format == GL_COLOR) {
+ if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
+ att_incomplete("bad format");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (_mesa_is_format_compressed(texImage->TexFormat)) {
+ att_incomplete("compressed internalformat");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else if (format == GL_DEPTH) {
+ if (baseFormat == GL_DEPTH_COMPONENT) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ ctx->Extensions.ARB_depth_texture &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att->Complete = GL_FALSE;
+ att_incomplete("bad depth format");
+ return;
+ }
+ }
+ else {
+ ASSERT(format == GL_STENCIL);
+ if (ctx->Extensions.EXT_packed_depth_stencil &&
+ ctx->Extensions.ARB_depth_texture &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ /* no such thing as stencil-only textures */
+ att_incomplete("illegal stencil texture");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ }
+ else if (att->Type == GL_RENDERBUFFER_EXT) {
+ const GLenum baseFormat =
+ _mesa_get_format_base_format(att->Renderbuffer->Format);
+
+ ASSERT(att->Renderbuffer);
+ if (!att->Renderbuffer->InternalFormat ||
+ att->Renderbuffer->Width < 1 ||
+ att->Renderbuffer->Height < 1) {
+ att_incomplete("0x0 renderbuffer");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (format == GL_COLOR) {
+ if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
+ att_incomplete("bad renderbuffer color format");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else if (format == GL_DEPTH) {
+ if (baseFormat == GL_DEPTH_COMPONENT) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att_incomplete("bad renderbuffer depth format");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else {
+ assert(format == GL_STENCIL);
+ if (baseFormat == GL_STENCIL_INDEX) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att->Complete = GL_FALSE;
+ att_incomplete("bad renderbuffer stencil format");
+ return;
+ }
+ }
+ }
+ else {
+ ASSERT(att->Type == GL_NONE);
+ /* complete */
+ return;
+ }
+}
+
+
+/**
+ * Test if the given framebuffer object is complete and update its
+ * Status field with the results.
+ * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
+ * driver to make hardware-specific validation/completeness checks.
+ * Also update the framebuffer's Width and Height fields if the
+ * framebuffer is complete.
+ */
+void
+_mesa_test_framebuffer_completeness(struct gl_context *ctx,
+ struct gl_framebuffer *fb)
+{
+ GLuint numImages;
+ GLenum intFormat = GL_NONE; /* color buffers' internal format */
+ GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
+ GLint numSamples = -1;
+ GLint i;
+ GLuint j;
+
+ assert(fb->Name != 0);
+
+ numImages = 0;
+ fb->Width = 0;
+ fb->Height = 0;
+
+ /* Start at -2 to more easily loop over all attachment points.
+ * -2: depth buffer
+ * -1: stencil buffer
+ * >=0: color buffer
+ */
+ for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {
+ struct gl_renderbuffer_attachment *att;
+ GLenum f;
+ gl_format mesaFormat;
+
+ /*
+ * XXX for ARB_fbo, only check color buffers that are named by
+ * GL_READ_BUFFER and GL_DRAW_BUFFERi.
+ */
+
+ /* check for attachment completeness
+ */
+ if (i == -2) {
+ att = &fb->Attachment[BUFFER_DEPTH];
+ test_attachment_completeness(ctx, GL_DEPTH, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("depth attachment incomplete", -1);
+ return;
+ }
+ }
+ else if (i == -1) {
+ att = &fb->Attachment[BUFFER_STENCIL];
+ test_attachment_completeness(ctx, GL_STENCIL, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("stencil attachment incomplete", -1);
+ return;
+ }
+ }
+ else {
+ att = &fb->Attachment[BUFFER_COLOR0 + i];
+ test_attachment_completeness(ctx, GL_COLOR, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("color attachment incomplete", i);
+ return;
+ }
+ }
+
+ /* get width, height, format of the renderbuffer/texture
+ */
+ if (att->Type == GL_TEXTURE) {
+ const struct gl_texture_image *texImg
+ = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
+ minWidth = MIN2(minWidth, texImg->Width);
+ maxWidth = MAX2(maxWidth, texImg->Width);
+ minHeight = MIN2(minHeight, texImg->Height);
+ maxHeight = MAX2(maxHeight, texImg->Height);
+ f = texImg->_BaseFormat;
+ mesaFormat = texImg->TexFormat;
+ numImages++;
+ if (!_mesa_is_legal_color_format(ctx, f) &&
+ !is_legal_depth_format(ctx, f)) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+ fbo_incomplete("texture attachment incomplete", -1);
+ return;
+ }
+ }
+ else if (att->Type == GL_RENDERBUFFER_EXT) {
+ minWidth = MIN2(minWidth, att->Renderbuffer->Width);
+ maxWidth = MAX2(minWidth, att->Renderbuffer->Width);
+ minHeight = MIN2(minHeight, att->Renderbuffer->Height);
+ maxHeight = MAX2(minHeight, att->Renderbuffer->Height);
+ f = att->Renderbuffer->InternalFormat;
+ mesaFormat = att->Renderbuffer->Format;
+ numImages++;
+ }
+ else {
+ assert(att->Type == GL_NONE);
+ continue;
+ }
+
+ if (numSamples < 0) {
+ /* first buffer */
+ numSamples = att->Renderbuffer->NumSamples;
+ }
+
+ /* check if integer color */
+ fb->_IntegerColor = _mesa_is_format_integer_color(mesaFormat);
+
+ /* Error-check width, height, format, samples
+ */
+ if (numImages == 1) {
+ /* save format, num samples */
+ if (i >= 0) {
+ intFormat = f;
+ }
+ }
+ else {
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ /* check that width, height, format are same */
+ if (minWidth != maxWidth || minHeight != maxHeight) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
+ fbo_incomplete("width or height mismatch", -1);
+ return;
+ }
+ /* check that all color buffer have same format */
+ if (intFormat != GL_NONE && f != intFormat) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+ fbo_incomplete("format mismatch", -1);
+ return;
+ }
+ }
+ if (att->Renderbuffer &&
+ att->Renderbuffer->NumSamples != numSamples) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+ fbo_incomplete("inconsistant number of samples", i);
+ return;
+ }
+
+ }
+ }
+
+#if FEATURE_GL
+ if (ctx->API == API_OPENGL) {
+ /* Check that all DrawBuffers are present */
+ for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
+ if (fb->ColorDrawBuffer[j] != GL_NONE) {
+ const struct gl_renderbuffer_attachment *att
+ = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
+ assert(att);
+ if (att->Type == GL_NONE) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
+ fbo_incomplete("missing drawbuffer", j);
+ return;
+ }
+ }
+ }
+
+ /* Check that the ReadBuffer is present */
+ if (fb->ColorReadBuffer != GL_NONE) {
+ const struct gl_renderbuffer_attachment *att
+ = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
+ assert(att);
+ if (att->Type == GL_NONE) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
+ fbo_incomplete("missing readbuffer", -1);
+ return;
+ }
+ }
+ }
+#else
+ (void) j;
+#endif
+
+ if (numImages == 0) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
+ fbo_incomplete("no attachments", -1);
+ return;
+ }
+
+ /* Provisionally set status = COMPLETE ... */
+ fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
+
+ /* ... but the driver may say the FB is incomplete.
+ * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
+ * if anything.
+ */
+ if (ctx->Driver.ValidateFramebuffer) {
+ ctx->Driver.ValidateFramebuffer(ctx, fb);
+ if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ fbo_incomplete("driver marked FBO as incomplete", -1);
+ }
+ }
+
+ if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
+ /*
+ * Note that if ARB_framebuffer_object is supported and the attached
+ * renderbuffers/textures are different sizes, the framebuffer
+ * width/height will be set to the smallest width/height.
+ */
+ fb->Width = minWidth;
+ fb->Height = minHeight;
+
+ /* finally, update the visual info for the framebuffer */
+ _mesa_update_framebuffer_visual(ctx, fb);
+ }
+}
+
+
+GLboolean GLAPIENTRY
+_mesa_IsRenderbufferEXT(GLuint renderbuffer)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+ if (renderbuffer) {
+ struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+ if (rb != NULL && rb != &DummyRenderbuffer)
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
+
+
+void GLAPIENTRY
+_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
+{
+ struct gl_renderbuffer *newRb;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (target != GL_RENDERBUFFER_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)");
+ return;
+ }
+
+ /* No need to flush here since the render buffer binding has no
+ * effect on rendering state.
+ */
+
+ if (renderbuffer) {
+ newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+ if (newRb == &DummyRenderbuffer) {
+ /* ID was reserved, but no real renderbuffer object made yet */
+ newRb = NULL;
+ }
+ else if (!newRb && ctx->Extensions.ARB_framebuffer_object) {
+ /* All RB IDs must be Gen'd */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");
+ return;
+ }
+
+ if (!newRb) {
+ /* create new renderbuffer object */
+ newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer);
+ if (!newRb) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT");
+ return;
+ }
+ ASSERT(newRb->AllocStorage);
+ _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb);
+ newRb->RefCount = 1; /* referenced by hash table */
+ }
+ }
+ else {
+ newRb = NULL;
+ }
+
+ ASSERT(newRb != &DummyRenderbuffer);
+
+ _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb);
+}
+
+
+/**
+ * If the given renderbuffer is anywhere attached to the framebuffer, detach
+ * the renderbuffer.
+ * This is used when a renderbuffer object is deleted.
+ * The spec calls for unbinding.
+ */
+static void
+detach_renderbuffer(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer *rb)
+{
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ if (fb->Attachment[i].Renderbuffer == rb) {
+ _mesa_remove_attachment(ctx, &fb->Attachment[i]);
+ }
+ }
+ invalidate_framebuffer(fb);
+}
+
+
+void GLAPIENTRY
+_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
+{
+ GLint i;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ for (i = 0; i < n; i++) {
+ if (renderbuffers[i] > 0) {
+ struct gl_renderbuffer *rb;
+ rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]);
+ if (rb) {
+ /* check if deleting currently bound renderbuffer object */
+ if (rb == ctx->CurrentRenderbuffer) {
+ /* bind default */
+ ASSERT(rb->RefCount >= 2);
+ _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+ }
+
+ if (ctx->DrawBuffer->Name) {
+ detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
+ }
+ if (ctx->ReadBuffer->Name && ctx->ReadBuffer != ctx->DrawBuffer) {
+ detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
+ }
+
+ /* Remove from hash table immediately, to free the ID.
+ * But the object will not be freed until it's no longer
+ * referenced anywhere else.
+ */
+ _mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]);
+
+ if (rb != &DummyRenderbuffer) {
+ /* no longer referenced by hash table */
+ _mesa_reference_renderbuffer(&rb, NULL);
+ }
+ }
+ }
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint first;
+ GLint i;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (n < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)");
+ return;
+ }
+
+ if (!renderbuffers)
+ return;
+
+ first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n);
+
+ for (i = 0; i < n; i++) {
+ GLuint name = first + i;
+ renderbuffers[i] = name;
+ /* insert dummy placeholder into hash table */
+ _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+ _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer);
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+ }
+}
+
+
+/**
+ * Given an internal format token for a render buffer, return the
+ * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
+ * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
+ * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
+ *
+ * This is similar to _mesa_base_tex_format() but the set of valid
+ * internal formats is different.
+ *
+ * Note that even if a format is determined to be legal here, validation
+ * of the FBO may fail if the format is not supported by the driver/GPU.
+ *
+ * \param internalFormat as passed to glRenderbufferStorage()
+ * \return the base internal format, or 0 if internalFormat is illegal
+ */
+GLenum
+_mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
+{
+ /*
+ * Notes: some formats such as alpha, luminance, etc. were added
+ * with GL_ARB_framebuffer_object.
+ */
+ switch (internalFormat) {
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ return ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
+ case GL_RGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ case GL_SRGB8_EXT:
+ return GL_RGB;
+ case GL_RGBA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ case GL_RGBA16_SNORM:
+ case GL_SRGB8_ALPHA8_EXT:
+ return GL_RGBA;
+ case GL_STENCIL_INDEX:
+ case GL_STENCIL_INDEX1_EXT:
+ case GL_STENCIL_INDEX4_EXT:
+ case GL_STENCIL_INDEX8_EXT:
+ case GL_STENCIL_INDEX16_EXT:
+ return GL_STENCIL_INDEX;
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ if (ctx->Extensions.EXT_packed_depth_stencil)
+ return GL_DEPTH_STENCIL_EXT;
+ else
+ return 0;
+ case GL_RED:
+ case GL_R8:
+ case GL_R16:
+ return ctx->Extensions.ARB_texture_rg ? GL_RED : 0;
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ return ctx->Extensions.ARB_texture_rg ? GL_RG : 0;
+ /* XXX add floating point and integer formats eventually */
+ default:
+ return 0;
+ }
+}
+
+
+/** sentinal value, see below */
+#define NO_SAMPLES 1000
+
+
+/**
+ * Helper function used by _mesa_RenderbufferStorageEXT() and
+ * _mesa_RenderbufferStorageMultisample().
+ * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
+ */
+static void
+renderbuffer_storage(GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height, GLsizei samples)
+{
+ const char *func = samples == NO_SAMPLES ?
+ "glRenderbufferStorage" : "RenderbufferStorageMultisample";
+ struct gl_renderbuffer *rb;
+ GLenum baseFormat;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (target != GL_RENDERBUFFER_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
+ return;
+ }
+
+ baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
+ if (baseFormat == 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);
+ return;
+ }
+
+ if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);
+ return;
+ }
+
+ if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);
+ return;
+ }
+
+ if (samples == NO_SAMPLES) {
+ /* NumSamples == 0 indicates non-multisampling */
+ samples = 0;
+ }
+ else if (samples > (GLsizei) ctx->Const.MaxSamples) {
+ /* note: driver may choose to use more samples than what's requested */
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
+ return;
+ }
+
+ rb = ctx->CurrentRenderbuffer;
+ if (!rb) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s", func);
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ if (rb->InternalFormat == internalFormat &&
+ rb->Width == (GLuint) width &&
+ rb->Height == (GLuint) height) {
+ /* no change in allocation needed */
+ return;
+ }
+
+ /* These MUST get set by the AllocStorage func */
+ rb->Format = MESA_FORMAT_NONE;
+ rb->NumSamples = samples;
+
+ /* Now allocate the storage */
+ ASSERT(rb->AllocStorage);
+ if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {
+ /* No error - check/set fields now */
+ assert(rb->Format != MESA_FORMAT_NONE);
+ assert(rb->Width == (GLuint) width);
+ assert(rb->Height == (GLuint) height);
+ rb->InternalFormat = internalFormat;
+ rb->_BaseFormat = baseFormat;
+ assert(rb->_BaseFormat != 0);
+ }
+ else {
+ /* Probably ran out of memory - clear the fields */
+ rb->Width = 0;
+ rb->Height = 0;
+ rb->Format = MESA_FORMAT_NONE;
+ rb->InternalFormat = GL_NONE;
+ rb->_BaseFormat = GL_NONE;
+ rb->NumSamples = 0;
+ }
+
+ /*
+ test_framebuffer_completeness(ctx, fb);
+ */
+ /* XXX if this renderbuffer is attached anywhere, invalidate attachment
+ * points???
+ */
+}
+
+
+#if FEATURE_OES_EGL_image
+void GLAPIENTRY
+_mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
+{
+ struct gl_renderbuffer *rb;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.OES_EGL_image) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glEGLImageTargetRenderbufferStorageOES(unsupported)");
+ return;
+ }
+
+ if (target != GL_RENDERBUFFER) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "EGLImageTargetRenderbufferStorageOES");
+ return;
+ }
+
+ rb = ctx->CurrentRenderbuffer;
+ if (!rb) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "EGLImageTargetRenderbufferStorageOES");
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image);
+}
+#endif
+
+
+/**
+ * Helper function for _mesa_GetRenderbufferParameterivEXT() and
+ * _mesa_GetFramebufferAttachmentParameterivEXT()
+ * We have to be careful to respect the base format. For example, if a
+ * renderbuffer/texture was created with internalFormat=GL_RGB but the
+ * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
+ * we need to return zero.
+ */
+static GLint
+get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
+{
+ switch (pname) {
+ case GL_RENDERBUFFER_RED_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+ if (baseFormat == GL_RGB || baseFormat == GL_RGBA ||
+ baseFormat == GL_RG || baseFormat == GL_RED)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+ if (baseFormat == GL_RGB || baseFormat == GL_RGBA || baseFormat == GL_RG)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+ if (baseFormat == GL_RGB || baseFormat == GL_RGBA)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+ if (baseFormat == GL_RGBA || baseFormat == GL_ALPHA ||
+ baseFormat == GL_LUMINANCE_ALPHA)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+ if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+ if (baseFormat == GL_STENCIL_INDEX || baseFormat == GL_DEPTH_STENCIL)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ default:
+ return 0;
+ }
+}
+
+
+
+void GLAPIENTRY
+_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height)
+{
+ /* GL_ARB_fbo says calling this function is equivalent to calling
+ * glRenderbufferStorageMultisample() with samples=0. We pass in
+ * a token value here just for error reporting purposes.
+ */
+ renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES);
+}
+
+
+void GLAPIENTRY
+_mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples,
+ GLenum internalFormat,
+ GLsizei width, GLsizei height)
+{
+ renderbuffer_storage(target, internalFormat, width, height, samples);
+}
+
+
+/**
+ * OpenGL ES version of glRenderBufferStorage.
+ */
+void GLAPIENTRY
+_es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height)
+{
+ switch (internalFormat) {
+ case GL_RGB565:
+ /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
+ /* choose a closest format */
+ internalFormat = GL_RGB5;
+ break;
+ default:
+ break;
+ }
+
+ renderbuffer_storage(target, internalFormat, width, height, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
+{
+ struct gl_renderbuffer *rb;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (target != GL_RENDERBUFFER_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetRenderbufferParameterivEXT(target)");
+ return;
+ }
+
+ rb = ctx->CurrentRenderbuffer;
+ if (!rb) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetRenderbufferParameterivEXT");
+ return;
+ }
+
+ /* No need to flush here since we're just quering state which is
+ * not effected by rendering.
+ */
+
+ switch (pname) {
+ case GL_RENDERBUFFER_WIDTH_EXT:
+ *params = rb->Width;
+ return;
+ case GL_RENDERBUFFER_HEIGHT_EXT:
+ *params = rb->Height;
+ return;
+ case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
+ *params = rb->InternalFormat;
+ return;
+ case GL_RENDERBUFFER_RED_SIZE_EXT:
+ case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+ case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+ case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+ case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+ case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+ *params = get_component_bits(pname, rb->_BaseFormat, rb->Format);
+ break;
+ case GL_RENDERBUFFER_SAMPLES:
+ if (ctx->Extensions.ARB_framebuffer_object) {
+ *params = rb->NumSamples;
+ break;
+ }
+ /* fallthrough */
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetRenderbufferParameterivEXT(target)");
+ return;
+ }
+}
+
+
+GLboolean GLAPIENTRY
+_mesa_IsFramebufferEXT(GLuint framebuffer)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+ if (framebuffer) {
+ struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer);
+ if (rb != NULL && rb != &DummyFramebuffer)
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
+
+
+/**
+ * Check if any of the attachments of the given framebuffer are textures
+ * (render to texture). Call ctx->Driver.RenderTexture() for such
+ * attachments.
+ */
+static void
+check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+ GLuint i;
+ ASSERT(ctx->Driver.RenderTexture);
+
+ if (fb->Name == 0)
+ return; /* can't render to texture with winsys framebuffers */
+
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+ struct gl_texture_object *texObj = att->Texture;
+ if (texObj
+ && texObj->Image[att->CubeMapFace][att->TextureLevel]) {
+ ctx->Driver.RenderTexture(ctx, fb, att);
+ }
+ }
+}
+
+
+/**
+ * Examine all the framebuffer's attachments to see if any are textures.
+ * If so, call ctx->Driver.FinishRenderTexture() for each texture to
+ * notify the device driver that the texture image may have changed.
+ */
+static void
+check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+ if (fb->Name == 0)
+ return; /* can't render to texture with winsys framebuffers */
+
+ if (ctx->Driver.FinishRenderTexture) {
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+ if (att->Texture && att->Renderbuffer) {
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ }
+ }
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
+{
+ struct gl_framebuffer *newDrawFb, *newReadFb;
+ struct gl_framebuffer *oldDrawFb, *oldReadFb;
+ GLboolean bindReadBuf, bindDrawBuf;
+ GET_CURRENT_CONTEXT(ctx);
+
+#ifdef DEBUG
+ if (ctx->Extensions.ARB_framebuffer_object) {
+ ASSERT(ctx->Extensions.EXT_framebuffer_object);
+ ASSERT(ctx->Extensions.EXT_framebuffer_blit);
+ }
+#endif
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.EXT_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBindFramebufferEXT(unsupported)");
+ return;
+ }
+
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+ bindDrawBuf = GL_TRUE;
+ bindReadBuf = GL_FALSE;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+ bindDrawBuf = GL_FALSE;
+ bindReadBuf = GL_TRUE;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ bindDrawBuf = GL_TRUE;
+ bindReadBuf = GL_TRUE;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+
+ if (framebuffer) {
+ /* Binding a user-created framebuffer object */
+ newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer);
+ if (newDrawFb == &DummyFramebuffer) {
+ /* ID was reserved, but no real framebuffer object made yet */
+ newDrawFb = NULL;
+ }
+ else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) {
+ /* All FBO IDs must be Gen'd */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
+ return;
+ }
+
+ if (!newDrawFb) {
+ /* create new framebuffer object */
+ newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
+ if (!newDrawFb) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
+ return;
+ }
+ _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb);
+ }
+ newReadFb = newDrawFb;
+ }
+ else {
+ /* Binding the window system framebuffer (which was originally set
+ * with MakeCurrent).
+ */
+ newDrawFb = ctx->WinSysDrawBuffer;
+ newReadFb = ctx->WinSysReadBuffer;
+ }
+
+ ASSERT(newDrawFb);
+ ASSERT(newDrawFb != &DummyFramebuffer);
+
+ /* save pointers to current/old framebuffers */
+ oldDrawFb = ctx->DrawBuffer;
+ oldReadFb = ctx->ReadBuffer;
+
+ /* check if really changing bindings */
+ if (oldDrawFb == newDrawFb)
+ bindDrawBuf = GL_FALSE;
+ if (oldReadFb == newReadFb)
+ bindReadBuf = GL_FALSE;
+
+ /*
+ * OK, now bind the new Draw/Read framebuffers, if they're changing.
+ *
+ * We also check if we're beginning and/or ending render-to-texture.
+ * When a framebuffer with texture attachments is unbound, call
+ * ctx->Driver.FinishRenderTexture().
+ * When a framebuffer with texture attachments is bound, call
+ * ctx->Driver.RenderTexture().
+ *
+ * Note that if the ReadBuffer has texture attachments we don't consider
+ * that a render-to-texture case.
+ */
+ if (bindReadBuf) {
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ /* check if old readbuffer was render-to-texture */
+ check_end_texture_render(ctx, oldReadFb);
+
+ _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb);
+ }
+
+ if (bindDrawBuf) {
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ /* check if old read/draw buffers were render-to-texture */
+ if (!bindReadBuf)
+ check_end_texture_render(ctx, oldReadFb);
+
+ if (oldDrawFb != oldReadFb)
+ check_end_texture_render(ctx, oldDrawFb);
+
+ /* check if newly bound framebuffer has any texture attachments */
+ check_begin_texture_render(ctx, newDrawFb);
+
+ _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb);
+ }
+
+ if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) {
+ ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb);
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
+{
+ GLint i;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ for (i = 0; i < n; i++) {
+ if (framebuffers[i] > 0) {
+ struct gl_framebuffer *fb;
+ fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
+ if (fb) {
+ ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
+
+ /* check if deleting currently bound framebuffer object */
+ if (ctx->Extensions.EXT_framebuffer_blit) {
+ /* separate draw/read binding points */
+ if (fb == ctx->DrawBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
+ }
+ if (fb == ctx->ReadBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
+ }
+ }
+ else {
+ /* only one binding point for read/draw buffers */
+ if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+ }
+ }
+
+ /* remove from hash table immediately, to free the ID */
+ _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);
+
+ if (fb != &DummyFramebuffer) {
+ /* But the object will not be freed until it's no longer
+ * bound in any context.
+ */
+ _mesa_reference_framebuffer(&fb, NULL);
+ }
+ }
+ }
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint first;
+ GLint i;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (n < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)");
+ return;
+ }
+
+ if (!framebuffers)
+ return;
+
+ first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n);
+
+ for (i = 0; i < n; i++) {
+ GLuint name = first + i;
+ framebuffers[i] = name;
+ /* insert dummy placeholder into hash table */
+ _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+ _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer);
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+ }
+}
+
+
+
+GLenum GLAPIENTRY
+_mesa_CheckFramebufferStatusEXT(GLenum target)
+{
+ struct gl_framebuffer *buffer;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
+
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+ return 0;
+ }
+ buffer = ctx->DrawBuffer;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+ return 0;
+ }
+ buffer = ctx->ReadBuffer;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ buffer = ctx->DrawBuffer;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+ return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
+ }
+
+ if (buffer->Name == 0) {
+ /* The window system / default framebuffer is always complete */
+ return GL_FRAMEBUFFER_COMPLETE_EXT;
+ }
+
+ /* No need to flush here */
+
+ if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
+ _mesa_test_framebuffer_completeness(ctx, buffer);
+ }
+
+ return buffer->_Status;
+}
+
+
+
+/**
+ * Common code called by glFramebufferTexture1D/2D/3DEXT().
+ */
+static void
+framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
+ GLenum attachment, GLenum textarget, GLuint texture,
+ GLint level, GLint zoffset)
+{
+ struct gl_renderbuffer_attachment *att;
+ struct gl_texture_object *texObj = NULL;
+ struct gl_framebuffer *fb;
+ GLboolean error = GL_FALSE;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+ case GL_READ_FRAMEBUFFER_EXT:
+ error = !ctx->Extensions.EXT_framebuffer_blit;
+ fb = ctx->ReadBuffer;
+ break;
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ error = !ctx->Extensions.EXT_framebuffer_blit;
+ /* fall-through */
+ case GL_FRAMEBUFFER_EXT:
+ fb = ctx->DrawBuffer;
+ break;
+ default:
+ error = GL_TRUE;
+ }
+
+ if (error) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture%sEXT(target=0x%x)", caller, target);
+ return;
+ }
+
+ ASSERT(fb);
+
+ /* check framebuffer binding */
+ if (fb->Name == 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture%sEXT", caller);
+ return;
+ }
+
+
+ /* The textarget, level, and zoffset parameters are only validated if
+ * texture is non-zero.
+ */
+ if (texture) {
+ GLboolean err = GL_TRUE;
+
+ texObj = _mesa_lookup_texture(ctx, texture);
+ if (texObj != NULL) {
+ if (textarget == 0) {
+ /* XXX what's the purpose of this? */
+ err = (texObj->Target != GL_TEXTURE_3D) &&
+ (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
+ (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
+ }
+ else {
+ err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
+ ? !IS_CUBE_FACE(textarget)
+ : (texObj->Target != textarget);
+ }
+ }
+ else {
+ /* can't render to a non-existant texture */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture%sEXT(non existant texture)",
+ caller);
+ return;
+ }
+
+ if (err) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture%sEXT(texture target mismatch)",
+ caller);
+ return;
+ }
+
+ if (texObj->Target == GL_TEXTURE_3D) {
+ const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
+ if (zoffset < 0 || zoffset >= maxSize) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(zoffset)", caller);
+ return;
+ }
+ }
+ else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
+ (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
+ if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(layer)", caller);
+ return;
+ }
+ }
+
+ if ((level < 0) ||
+ (level >= _mesa_max_texture_levels(ctx, texObj->Target))) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(level)", caller);
+ return;
+ }
+ }
+
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ if (att == NULL) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture%sEXT(attachment)", caller);
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ _glthread_LOCK_MUTEX(fb->Mutex);
+ if (texObj) {
+ _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
+ level, zoffset);
+ /* Set the render-to-texture flag. We'll check this flag in
+ * glTexImage() and friends to determine if we need to revalidate
+ * any FBOs that might be rendering into this texture.
+ * This flag never gets cleared since it's non-trivial to determine
+ * when all FBOs might be done rendering to this texture. That's OK
+ * though since it's uncommon to render to a texture then repeatedly
+ * call glTexImage() to change images in the texture.
+ */
+ texObj->_RenderToTexture = GL_TRUE;
+ }
+ else {
+ _mesa_remove_attachment(ctx, att);
+ }
+
+ invalidate_framebuffer(fb);
+
+ _glthread_UNLOCK_MUTEX(fb->Mutex);
+}
+
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
+ GLenum textarget, GLuint texture, GLint level)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if ((texture != 0) && (textarget != GL_TEXTURE_1D)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture1DEXT(textarget)");
+ return;
+ }
+
+ framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
+ level, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
+ GLenum textarget, GLuint texture, GLint level)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if ((texture != 0) &&
+ (textarget != GL_TEXTURE_2D) &&
+ (textarget != GL_TEXTURE_RECTANGLE_ARB) &&
+ (!IS_CUBE_FACE(textarget))) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture2DEXT(textarget=0x%x)", textarget);
+ return;
+ }
+
+ framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
+ level, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
+ GLenum textarget, GLuint texture,
+ GLint level, GLint zoffset)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture3DEXT(textarget)");
+ return;
+ }
+
+ framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,
+ level, zoffset);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
+ GLuint texture, GLint level, GLint layer)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
+ level, layer);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
+ GLenum renderbufferTarget,
+ GLuint renderbuffer)
+{
+ struct gl_renderbuffer_attachment *att;
+ struct gl_framebuffer *fb;
+ struct gl_renderbuffer *rb;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(target)");
+ return;
+ }
+ fb = ctx->DrawBuffer;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(target)");
+ return;
+ }
+ fb = ctx->ReadBuffer;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ fb = ctx->DrawBuffer;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(target)");
+ return;
+ }
+
+ if (renderbufferTarget != GL_RENDERBUFFER_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(renderbufferTarget)");
+ return;
+ }
+
+ if (fb->Name == 0) {
+ /* Can't attach new renderbuffers to a window system framebuffer */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
+ return;
+ }
+
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ if (att == NULL) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(invalid attachment %s)",
+ _mesa_lookup_enum_by_nr(attachment));
+ return;
+ }
+
+ if (renderbuffer) {
+ rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+ if (!rb) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferRenderbufferEXT(non-existant"
+ " renderbuffer %u)", renderbuffer);
+ return;
+ }
+ else if (rb == &DummyRenderbuffer) {
+ /* This is what NVIDIA does */
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferRenderbufferEXT(renderbuffer %u)",
+ renderbuffer);
+ return;
+ }
+ }
+ else {
+ /* remove renderbuffer attachment */
+ rb = NULL;
+ }
+
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT &&
+ rb && rb->Format != MESA_FORMAT_NONE) {
+ /* make sure the renderbuffer is a depth/stencil format */
+ const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);
+ if (baseFormat != GL_DEPTH_STENCIL) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferRenderbufferEXT(renderbuffer"
+ " is not DEPTH_STENCIL format)");
+ return;
+ }
+ }
+
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ assert(ctx->Driver.FramebufferRenderbuffer);
+ ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
+
+ /* Some subsequent GL commands may depend on the framebuffer's visual
+ * after the binding is updated. Update visual info now.
+ */
+ _mesa_update_framebuffer_visual(ctx, fb);
+}
+
+
+void GLAPIENTRY
+_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
+ GLenum pname, GLint *params)
+{
+ const struct gl_renderbuffer_attachment *att;
+ struct gl_framebuffer *buffer;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(target)");
+ return;
+ }
+ buffer = ctx->DrawBuffer;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(target)");
+ return;
+ }
+ buffer = ctx->ReadBuffer;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ buffer = ctx->DrawBuffer;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(target)");
+ return;
+ }
+
+ if (buffer->Name == 0) {
+ /* the default / window-system FBO */
+ att = _mesa_get_fb0_attachment(ctx, buffer, attachment);
+ }
+ else {
+ /* user-created framebuffer FBO */
+ att = _mesa_get_attachment(ctx, buffer, attachment);
+ }
+
+ if (att == NULL) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(attachment)");
+ return;
+ }
+
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+ /* the depth and stencil attachments must point to the same buffer */
+ const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt;
+ depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
+ stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
+ if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
+ " attachments differ)");
+ return;
+ }
+ }
+
+ /* No need to flush here */
+
+ switch (pname) {
+ case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
+ *params = buffer->Name == 0 ? GL_FRAMEBUFFER_DEFAULT : att->Type;
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
+ if (att->Type == GL_RENDERBUFFER_EXT) {
+ *params = att->Renderbuffer->Name;
+ }
+ else if (att->Type == GL_TEXTURE) {
+ *params = att->Texture->Name;
+ }
+ else {
+ assert(att->Type == GL_NONE);
+ *params = 0;
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
+ if (att->Type == GL_TEXTURE) {
+ *params = att->TextureLevel;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:
+ if (att->Type == GL_TEXTURE) {
+ if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) {
+ *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;
+ }
+ else {
+ *params = 0;
+ }
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:
+ if (att->Type == GL_TEXTURE) {
+ if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {
+ *params = att->Zoffset;
+ }
+ else {
+ *params = 0;
+ }
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ else {
+ if (ctx->Extensions.EXT_framebuffer_sRGB) {
+ *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format);
+ }
+ else {
+ /* According to ARB_framebuffer_sRGB, we should return LINEAR
+ * if the sRGB conversion is unsupported. */
+ *params = GL_LINEAR;
+ }
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ return;
+ }
+ else {
+ gl_format format = att->Renderbuffer->Format;
+ if (format == MESA_FORMAT_CI8 || format == MESA_FORMAT_S8) {
+ /* special cases */
+ *params = GL_INDEX;
+ }
+ else {
+ *params = _mesa_get_format_datatype(format);
+ }
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ else if (att->Texture) {
+ const struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target,
+ att->TextureLevel);
+ if (texImage) {
+ *params = get_component_bits(pname, texImage->_BaseFormat,
+ texImage->TexFormat);
+ }
+ else {
+ *params = 0;
+ }
+ }
+ else if (att->Renderbuffer) {
+ *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat,
+ att->Renderbuffer->Format);
+ }
+ else {
+ *params = 0;
+ }
+ return;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ return;
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_GenerateMipmapEXT(GLenum target)
+{
+ struct gl_texture_object *texObj;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_CUBE_MAP:
+ /* OK, legal value */
+ break;
+ default:
+ /* XXX need to implement GL_TEXTURE_1D_ARRAY and GL_TEXTURE_2D_ARRAY */
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)");
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ if (texObj->BaseLevel >= texObj->MaxLevel) {
+ /* nothing to do */
+ return;
+ }
+
+ if (texObj->Target == GL_TEXTURE_CUBE_MAP &&
+ !_mesa_cube_complete(texObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGenerateMipmap(incomplete cube map)");
+ return;
+ }
+
+ _mesa_lock_texture(ctx, texObj);
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ GLuint face;
+ for (face = 0; face < 6; face++)
+ ctx->Driver.GenerateMipmap(ctx,
+ GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,
+ texObj);
+ }
+ else {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+#if FEATURE_EXT_framebuffer_blit
+
+static const struct gl_renderbuffer_attachment *
+find_attachment(const struct gl_framebuffer *fb,
+ const struct gl_renderbuffer *rb)
+{
+ GLuint i;
+ for (i = 0; i < Elements(fb->Attachment); i++) {
+ if (fb->Attachment[i].Renderbuffer == rb)
+ return &fb->Attachment[i];
+ }
+ return NULL;
+}
+
+
+
+/**
+ * Blit rectangular region, optionally from one framebuffer to another.
+ *
+ * Note, if the src buffer is multisampled and the dest is not, this is
+ * when the samples must be resolved to a single color.
+ */
+void GLAPIENTRY
+_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+ GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+ GLbitfield mask, GLenum filter)
+{
+ const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
+ GL_DEPTH_BUFFER_BIT |
+ GL_STENCIL_BUFFER_BIT);
+ const struct gl_framebuffer *readFb, *drawFb;
+ const struct gl_renderbuffer *colorReadRb, *colorDrawRb;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ readFb = ctx->ReadBuffer;
+ drawFb = ctx->DrawBuffer;
+
+ if (!readFb || !drawFb) {
+ /* This will normally never happen but someday we may want to
+ * support MakeCurrent() with no drawables.
+ */
+ return;
+ }
+
+ /* check for complete framebuffers */
+ if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
+ readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glBlitFramebufferEXT(incomplete draw/read buffers)");
+ return;
+ }
+
+ if (filter != GL_NEAREST && filter != GL_LINEAR) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
+ return;
+ }
+
+ if (mask & ~legalMaskBits) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
+ return;
+ }
+
+ /* depth/stencil must be blitted with nearest filtering */
+ if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
+ && filter != GL_NEAREST) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
+ return;
+ }
+
+ /* get color read/draw renderbuffers */
+ if (mask & GL_COLOR_BUFFER_BIT) {
+ colorReadRb = readFb->_ColorReadBuffer;
+ colorDrawRb = drawFb->_ColorDrawBuffers[0];
+ }
+ else {
+ colorReadRb = colorDrawRb = NULL;
+ }
+
+ if (mask & GL_STENCIL_BUFFER_BIT) {
+ struct gl_renderbuffer *readRb = readFb->_StencilBuffer;
+ struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer;
+ if (!readRb ||
+ !drawRb ||
+ _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
+ _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(stencil buffer size mismatch");
+ return;
+ }
+ }
+
+ if (mask & GL_DEPTH_BUFFER_BIT) {
+ struct gl_renderbuffer *readRb = readFb->_DepthBuffer;
+ struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer;
+ if (!readRb ||
+ !drawRb ||
+ _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
+ _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(depth buffer size mismatch");
+ return;
+ }
+ }
+
+ if (readFb->Visual.samples > 0 &&
+ drawFb->Visual.samples > 0 &&
+ readFb->Visual.samples != drawFb->Visual.samples) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(mismatched samples");
+ return;
+ }
+
+ /* extra checks for multisample copies... */
+ if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
+ /* src and dest region sizes must be the same */
+ if (srcX1 - srcX0 != dstX1 - dstX0 ||
+ srcY1 - srcY0 != dstY1 - dstY0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(bad src/dst multisample region sizes");
+ return;
+ }
+
+ /* color formats must match */
+ if (colorReadRb &&
+ colorDrawRb &&
+ colorReadRb->Format != colorDrawRb->Format) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(bad src/dst multisample pixel formats");
+ return;
+ }
+ }
+
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
+ return;
+ }
+
+ /* Debug code */
+ if (DEBUG_BLIT) {
+ printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
+ " 0x%x, 0x%x)\n",
+ srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1,
+ mask, filter);
+ if (colorReadRb) {
+ const struct gl_renderbuffer_attachment *att;
+
+ att = find_attachment(readFb, colorReadRb);
+ printf(" Src FBO %u RB %u (%dx%d) ",
+ readFb->Name, colorReadRb->Name,
+ colorReadRb->Width, colorReadRb->Height);
+ if (att && att->Texture) {
+ printf("Tex %u tgt 0x%x level %u face %u",
+ att->Texture->Name,
+ att->Texture->Target,
+ att->TextureLevel,
+ att->CubeMapFace);
+ }
+ printf("\n");
+
+ att = find_attachment(drawFb, colorDrawRb);
+ printf(" Dst FBO %u RB %u (%dx%d) ",
+ drawFb->Name, colorDrawRb->Name,
+ colorDrawRb->Width, colorDrawRb->Height);
+ if (att && att->Texture) {
+ printf("Tex %u tgt 0x%x level %u face %u",
+ att->Texture->Name,
+ att->Texture->Target,
+ att->TextureLevel,
+ att->CubeMapFace);
+ }
+ printf("\n");
+ }
+ }
+
+ ASSERT(ctx->Driver.BlitFramebuffer);
+ ctx->Driver.BlitFramebuffer(ctx,
+ srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1,
+ mask, filter);
+}
+#endif /* FEATURE_EXT_framebuffer_blit */
+
+#if FEATURE_ARB_geometry_shader4
+void GLAPIENTRY
+_mesa_FramebufferTextureARB(GLenum target, GLenum attachment,
+ GLuint texture, GLint level)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTextureARB "
+ "not implemented!");
+}
+
+void GLAPIENTRY
+_mesa_FramebufferTextureFaceARB(GLenum target, GLenum attachment,
+ GLuint texture, GLint level, GLenum face)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTextureFaceARB "
+ "not implemented!");
+}
+#endif /* FEATURE_ARB_geometry_shader4 */
diff --git a/mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c b/mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c index a9e05c9c4..98be6ab75 100644 --- a/mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c +++ b/mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c @@ -99,7 +99,7 @@ create_color_map_texture(struct gl_context *ctx) /* create texture for color map/table */
pt = st_texture_create(st, PIPE_TEXTURE_2D, format, 0,
- texSize, texSize, 1, PIPE_BIND_SAMPLER_VIEW);
+ texSize, texSize, 1, 1, PIPE_BIND_SAMPLER_VIEW);
return pt;
}
diff --git a/mesalib/src/mesa/state_tracker/st_cb_bitmap.c b/mesalib/src/mesa/state_tracker/st_cb_bitmap.c index a3e39dd49..ddd130a81 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_bitmap.c +++ b/mesalib/src/mesa/state_tracker/st_cb_bitmap.c @@ -276,7 +276,7 @@ make_bitmap_texture(struct gl_context *ctx, GLsizei width, GLsizei height, * Create texture to hold bitmap pattern.
*/
pt = st_texture_create(st, st->internal_target, st->bitmap.tex_format,
- 0, width, height, 1,
+ 0, width, height, 1, 1,
PIPE_BIND_SAMPLER_VIEW);
if (!pt) {
_mesa_unmap_pbo_source(ctx, unpack);
@@ -559,7 +559,7 @@ reset_cache(struct st_context *st) cache->texture = st_texture_create(st, PIPE_TEXTURE_2D,
st->bitmap.tex_format, 0,
BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT,
- 1,
+ 1, 1,
PIPE_BIND_SAMPLER_VIEW);
}
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c index 8d3eece4d..56c7e8581 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c +++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c @@ -343,7 +343,7 @@ alloc_texture(struct st_context *st, GLsizei width, GLsizei height, struct pipe_resource *pt;
pt = st_texture_create(st, st->internal_target, texFormat, 0,
- width, height, 1, PIPE_BIND_SAMPLER_VIEW);
+ width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW);
return pt;
}
diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c index 9653dcd65..ff04f3364 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_texture.c +++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c @@ -1,2021 +1,2033 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - -#include "main/mfeatures.h" -#include "main/bufferobj.h" -#include "main/enums.h" -#include "main/fbobject.h" -#include "main/formats.h" -#include "main/image.h" -#include "main/imports.h" -#include "main/macros.h" -#include "main/mipmap.h" -#include "main/pack.h" -#include "main/pixeltransfer.h" -#include "main/texcompress.h" -#include "main/texfetch.h" -#include "main/texgetimage.h" -#include "main/teximage.h" -#include "main/texobj.h" -#include "main/texstore.h" - -#include "state_tracker/st_debug.h" -#include "state_tracker/st_context.h" -#include "state_tracker/st_cb_fbo.h" -#include "state_tracker/st_cb_flush.h" -#include "state_tracker/st_cb_texture.h" -#include "state_tracker/st_format.h" -#include "state_tracker/st_texture.h" -#include "state_tracker/st_gen_mipmap.h" -#include "state_tracker/st_atom.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "util/u_inlines.h" -#include "pipe/p_shader_tokens.h" -#include "util/u_tile.h" -#include "util/u_blit.h" -#include "util/u_format.h" -#include "util/u_surface.h" -#include "util/u_sampler.h" -#include "util/u_math.h" -#include "util/u_box.h" - -#define DBG if (0) printf - - -static enum pipe_texture_target -gl_target_to_pipe(GLenum target) -{ - switch (target) { - case GL_TEXTURE_1D: - return PIPE_TEXTURE_1D; - case GL_TEXTURE_2D: - return PIPE_TEXTURE_2D; - case GL_TEXTURE_RECTANGLE_NV: - return PIPE_TEXTURE_RECT; - case GL_TEXTURE_3D: - return PIPE_TEXTURE_3D; - case GL_TEXTURE_CUBE_MAP_ARB: - return PIPE_TEXTURE_CUBE; - case GL_TEXTURE_1D_ARRAY_EXT: - return PIPE_TEXTURE_1D_ARRAY; - case GL_TEXTURE_2D_ARRAY_EXT: - return PIPE_TEXTURE_2D_ARRAY; - default: - assert(0); - return 0; - } -} - - -/** called via ctx->Driver.NewTextureImage() */ -static struct gl_texture_image * -st_NewTextureImage(struct gl_context * ctx) -{ - DBG("%s\n", __FUNCTION__); - (void) ctx; - return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); -} - - -/** called via ctx->Driver.NewTextureObject() */ -static struct gl_texture_object * -st_NewTextureObject(struct gl_context * ctx, GLuint name, GLenum target) -{ - struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); - - DBG("%s\n", __FUNCTION__); - _mesa_initialize_texture_object(&obj->base, name, target); - - return &obj->base; -} - -/** called via ctx->Driver.DeleteTextureObject() */ -static void -st_DeleteTextureObject(struct gl_context *ctx, - struct gl_texture_object *texObj) -{ - struct st_context *st = st_context(ctx); - struct st_texture_object *stObj = st_texture_object(texObj); - if (stObj->pt) - pipe_resource_reference(&stObj->pt, NULL); - if (stObj->sampler_view) { - if (stObj->sampler_view->context != st->pipe) { - /* Take "ownership" of this texture sampler view by setting - * its context pointer to this context. This avoids potential - * crashes when the texture object is shared among contexts - * and the original/owner context has already been destroyed. - */ - stObj->sampler_view->context = st->pipe; - } - pipe_sampler_view_reference(&stObj->sampler_view, NULL); - } - _mesa_delete_texture_object(ctx, texObj); -} - - -/** called via ctx->Driver.FreeTexImageData() */ -static void -st_FreeTextureImageData(struct gl_context * ctx, struct gl_texture_image *texImage) -{ - struct st_texture_image *stImage = st_texture_image(texImage); - - DBG("%s\n", __FUNCTION__); - - if (stImage->pt) { - pipe_resource_reference(&stImage->pt, NULL); - } - - if (texImage->Data) { - _mesa_align_free(texImage->Data); - texImage->Data = NULL; - } -} - - -/** - * From linux kernel i386 header files, copes with odd sizes better - * than COPY_DWORDS would: - * XXX Put this in src/mesa/main/imports.h ??? - */ -#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) -static INLINE void * -__memcpy(void *to, const void *from, size_t n) -{ - int d0, d1, d2; - __asm__ __volatile__("rep ; movsl\n\t" - "testb $2,%b4\n\t" - "je 1f\n\t" - "movsw\n" - "1:\ttestb $1,%b4\n\t" - "je 2f\n\t" - "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) - :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) - :"memory"); - return (to); -} -#else -#define __memcpy(a,b,c) memcpy(a,b,c) -#endif - - -/** - * The system memcpy (at least on ubuntu 5.10) has problems copying - * to agp (writecombined) memory from a source which isn't 64-byte - * aligned - there is a 4x performance falloff. - * - * The x86 __memcpy is immune to this but is slightly slower - * (10%-ish) than the system memcpy. - * - * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but - * isn't much faster than x86_memcpy for agp copies. - * - * TODO: switch dynamically. - */ -static void * -do_memcpy(void *dest, const void *src, size_t n) -{ - if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { - return __memcpy(dest, src, n); - } - else - return memcpy(dest, src, n); -} - - -/** - * Return default texture resource binding bitmask for the given format. - */ -static GLuint -default_bindings(struct st_context *st, enum pipe_format format) -{ - struct pipe_screen *screen = st->pipe->screen; - const unsigned target = PIPE_TEXTURE_2D; - const unsigned geom = 0x0; - unsigned bindings; - - if (util_format_is_depth_or_stencil(format)) - bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL; - else - bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; - - if (screen->is_format_supported(screen, format, target, 0, bindings, geom)) - return bindings; - else - return PIPE_BIND_SAMPLER_VIEW; -} - - -/** Return number of image dimensions (1, 2 or 3) for a texture target. */ -static GLuint -get_texture_dims(GLenum target) -{ - switch (target) { - case GL_TEXTURE_1D: - case GL_TEXTURE_1D_ARRAY_EXT: - return 1; - case GL_TEXTURE_2D: - case GL_TEXTURE_CUBE_MAP_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: - case GL_TEXTURE_RECTANGLE_NV: - case GL_TEXTURE_2D_ARRAY_EXT: - return 2; - case GL_TEXTURE_3D: - return 3; - default: - assert(0 && "invalid texture target in get_texture_dims()"); - return 1; - } -} - - -/** - * Try to allocate a pipe_resource object for the given st_texture_object. - * - * We use the given st_texture_image as a clue to determine the size of the - * mipmap image at level=0. - * - * \return GL_TRUE for success, GL_FALSE if out of memory. - */ -static GLboolean -guess_and_alloc_texture(struct st_context *st, - struct st_texture_object *stObj, - const struct st_texture_image *stImage) -{ - const GLuint dims = get_texture_dims(stObj->base.Target); - GLuint level, lastLevel, width, height, depth; - GLuint bindings; - enum pipe_format fmt; - - DBG("%s\n", __FUNCTION__); - - assert(!stObj->pt); - - level = stImage->level; - width = stImage->base.Width2; /* size w/out border */ - height = stImage->base.Height2; - depth = stImage->base.Depth2; - - assert(width > 0); - assert(height > 0); - assert(depth > 0); - - /* Depending on the image's size, we can't always make a guess here. - */ - if (level > 0) { - if ( (dims >= 1 && width == 1) || - (dims >= 2 && height == 1) || - (dims >= 3 && depth == 1) ) { - /* we can't determine the image size at level=0 */ - stObj->width0 = stObj->height0 = stObj->depth0 = 0; - /* this is not an out of memory error */ - return GL_TRUE; - } - } - - /* grow the image size until we hit level = 0 */ - while (level > 0) { - if (width != 1) - width <<= 1; - if (height != 1) - height <<= 1; - if (depth != 1) - depth <<= 1; - level--; - } - - assert(level == 0); - - /* At this point, (width x height x depth) is the expected size of - * the level=0 mipmap image. - */ - - /* Guess a reasonable value for lastLevel. With OpenGL we have no - * idea how many mipmap levels will be in a texture until we start - * to render with it. Make an educated guess here but be prepared - * to re-allocating a texture buffer with space for more (or fewer) - * mipmap levels later. - */ - if ((stObj->base.MinFilter == GL_NEAREST || - stObj->base.MinFilter == GL_LINEAR || - stImage->base._BaseFormat == GL_DEPTH_COMPONENT || - stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && - !stObj->base.GenerateMipmap && - stImage->level == 0) { - /* only alloc space for a single mipmap level */ - lastLevel = 0; - } - else { - /* alloc space for a full mipmap */ - GLuint l2width = util_logbase2(width); - GLuint l2height = util_logbase2(height); - GLuint l2depth = util_logbase2(depth); - lastLevel = MAX2(MAX2(l2width, l2height), l2depth); - } - - /* Save the level=0 dimensions */ - stObj->width0 = width; - stObj->height0 = height; - stObj->depth0 = depth; - - fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat); - - bindings = default_bindings(st, fmt); - - stObj->pt = st_texture_create(st, - gl_target_to_pipe(stObj->base.Target), - fmt, - lastLevel, - width, - height, - depth, - bindings); - - DBG("%s returning %d\n", __FUNCTION__, (stObj->pt != NULL)); - - return stObj->pt != NULL; -} - - -/** - * Adjust pixel unpack params and image dimensions to strip off the - * texture border. - * Gallium doesn't support texture borders. They've seldem been used - * and seldom been implemented correctly anyway. - * \param unpackNew returns the new pixel unpack parameters - */ -static void -strip_texture_border(GLint border, - GLint *width, GLint *height, GLint *depth, - const struct gl_pixelstore_attrib *unpack, - struct gl_pixelstore_attrib *unpackNew) -{ - assert(border > 0); /* sanity check */ - - *unpackNew = *unpack; - - if (unpackNew->RowLength == 0) - unpackNew->RowLength = *width; - - if (depth && unpackNew->ImageHeight == 0) - unpackNew->ImageHeight = *height; - - unpackNew->SkipPixels += border; - if (height) - unpackNew->SkipRows += border; - if (depth) - unpackNew->SkipImages += border; - - assert(*width >= 3); - *width = *width - 2 * border; - if (height && *height >= 3) - *height = *height - 2 * border; - if (depth && *depth >= 3) - *depth = *depth - 2 * border; -} - - -/** - * Try to do texture compression via rendering. If the Gallium driver - * can render into a compressed surface this will allow us to do texture - * compression. - * \return GL_TRUE for success, GL_FALSE for failure - */ -static GLboolean -compress_with_blit(struct gl_context * ctx, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint width, GLint height, GLint depth, - GLenum format, GLenum type, const void *pixels, - const struct gl_pixelstore_attrib *unpack, - struct gl_texture_image *texImage) -{ - const GLuint dstImageOffsets[1] = {0}; - struct st_texture_image *stImage = st_texture_image(texImage); - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = pipe->screen; - gl_format mesa_format; - struct pipe_resource templ; - struct pipe_resource *src_tex; - struct pipe_sampler_view view_templ; - struct pipe_sampler_view *src_view; - struct pipe_surface *dst_surface, surf_tmpl; - struct pipe_transfer *tex_xfer; - void *map; - - if (!stImage->pt) { - /* XXX: Can this happen? Should we assert? */ - return GL_FALSE; - } - - /* get destination surface (in the compressed texture) */ - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - surf_tmpl.format = stImage->pt->format; - surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; - surf_tmpl.u.tex.level = stImage->level; - surf_tmpl.u.tex.first_layer = stImage->face; - surf_tmpl.u.tex.last_layer = stImage->face; - dst_surface = pipe->create_surface(pipe, stImage->pt, &surf_tmpl); - if (!dst_surface) { - /* can't render into this format (or other problem) */ - return GL_FALSE; - } - - /* Choose format for the temporary RGBA texture image. - */ - mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); - assert(mesa_format); - if (!mesa_format) - return GL_FALSE; - - /* Create the temporary source texture - */ - memset(&templ, 0, sizeof(templ)); - templ.target = st->internal_target; - templ.format = st_mesa_format_to_pipe_format(mesa_format); - templ.width0 = width; - templ.height0 = height; - templ.depth0 = 1; - templ.array_size = 1; - templ.last_level = 0; - templ.usage = PIPE_USAGE_DEFAULT; - templ.bind = PIPE_BIND_SAMPLER_VIEW; - src_tex = screen->resource_create(screen, &templ); - - if (!src_tex) - return GL_FALSE; - - /* Put user's tex data into the temporary texture - */ - tex_xfer = pipe_get_transfer(st_context(ctx)->pipe, src_tex, - 0, 0, /* layer, level are zero */ - PIPE_TRANSFER_WRITE, - 0, 0, width, height); /* x, y, w, h */ - map = pipe_transfer_map(pipe, tex_xfer); - - _mesa_texstore(ctx, 2, GL_RGBA, mesa_format, - map, /* dest ptr */ - 0, 0, 0, /* dest x/y/z offset */ - tex_xfer->stride, /* dest row stride (bytes) */ - dstImageOffsets, /* image offsets (for 3D only) */ - width, height, 1, /* size */ - format, type, /* source format/type */ - pixels, /* source data */ - unpack); /* source data packing */ - - pipe_transfer_unmap(pipe, tex_xfer); - pipe->transfer_destroy(pipe, tex_xfer); - - /* Create temporary sampler view */ - u_sampler_view_default_template(&view_templ, - src_tex, - src_tex->format); - src_view = pipe->create_sampler_view(pipe, src_tex, &view_templ); - - - /* copy / compress image */ - util_blit_pixels_tex(st->blit, - src_view, /* sampler view (src) */ - 0, 0, /* src x0, y0 */ - width, height, /* src x1, y1 */ - dst_surface, /* pipe_surface (dst) */ - xoffset, yoffset, /* dst x0, y0 */ - xoffset + width, /* dst x1 */ - yoffset + height, /* dst y1 */ - 0.0, /* z */ - PIPE_TEX_MIPFILTER_NEAREST); - - pipe_surface_reference(&dst_surface, NULL); - pipe_resource_reference(&src_tex, NULL); - pipe_sampler_view_reference(&src_view, NULL); - - return GL_TRUE; -} - - -/** - * Do glTexImage1/2/3D(). - */ -static void -st_TexImage(struct gl_context * ctx, - GLint dims, - GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint height, GLint depth, - GLint border, - GLenum format, GLenum type, const void *pixels, - const struct gl_pixelstore_attrib *unpack, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage, - GLsizei imageSize, GLboolean compressed_src) -{ - struct st_context *st = st_context(ctx); - struct pipe_screen *screen = st->pipe->screen; - struct st_texture_object *stObj = st_texture_object(texObj); - struct st_texture_image *stImage = st_texture_image(texImage); - GLuint dstRowStride = 0; - struct gl_pixelstore_attrib unpackNB; - enum pipe_transfer_usage transfer_usage = 0; - - DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, - _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); - - /* switch to "normal" */ - if (stObj->surface_based) { - gl_format texFormat; - - _mesa_clear_texture_object(ctx, texObj); - pipe_resource_reference(&stObj->pt, NULL); - - /* oops, need to init this image again */ - texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, - internalFormat, format, type); - - _mesa_init_teximage_fields(ctx, target, texImage, - width, height, depth, border, - internalFormat, texFormat); - - stObj->surface_based = GL_FALSE; - } - - /* gallium does not support texture borders, strip it off */ - if (border) { - strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); - unpack = &unpackNB; - texImage->Width = width; - texImage->Height = height; - texImage->Depth = depth; - texImage->Border = 0; - border = 0; - } - else { - assert(texImage->Width == width); - assert(texImage->Height == height); - assert(texImage->Depth == depth); - } - - stImage->face = _mesa_tex_target_to_face(target); - stImage->level = level; - - _mesa_set_fetch_functions(texImage, dims); - - /* Release the reference to a potentially orphaned buffer. - * Release any old malloced memory. - */ - if (stImage->pt) { - pipe_resource_reference(&stImage->pt, NULL); - assert(!texImage->Data); - } - else if (texImage->Data) { - _mesa_align_free(texImage->Data); - } - - /* - * See if the new image is somehow incompatible with the existing - * mipmap. If so, free the old mipmap. - */ - if (stObj->pt) { - if (level > (GLint) stObj->pt->last_level || - !st_texture_match_image(stObj->pt, &stImage->base, - stImage->face, stImage->level)) { - DBG("release it\n"); - pipe_resource_reference(&stObj->pt, NULL); - assert(!stObj->pt); - pipe_sampler_view_reference(&stObj->sampler_view, NULL); - } - } - - if (width == 0 || height == 0 || depth == 0) { - /* stop after freeing old image */ - return; - } - - if (!stObj->pt) { - if (!guess_and_alloc_texture(st, stObj, stImage)) { - /* Probably out of memory. - * Try flushing any pending rendering, then retry. - */ - st_finish(st); - if (!guess_and_alloc_texture(st, stObj, stImage)) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); - return; - } - } - } - - assert(!stImage->pt); - - /* Check if this texture image can live inside the texture object's buffer. - * If so, store the image there. Otherwise the image will temporarily live - * in its own buffer. - */ - if (stObj->pt && - st_texture_match_image(stObj->pt, &stImage->base, - stImage->face, stImage->level)) { - - pipe_resource_reference(&stImage->pt, stObj->pt); - assert(stImage->pt); - } - - if (!stImage->pt) - DBG("XXX: Image did not fit into texture - storing in local memory!\n"); - - /* Pixel data may come from regular user memory or a PBO. For the later, - * do bounds checking and map the PBO to read pixels data from it. - * - * XXX we should try to use a GPU-accelerated path to copy the image data - * from the PBO to the texture. - */ - if (compressed_src) { - pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, - unpack, - "glCompressedTexImage"); - } - else { - pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, - format, type, - pixels, unpack, "glTexImage"); - } - - /* See if we can do texture compression with a blit/render. - */ - if (!compressed_src && - !ctx->Mesa_DXTn && - _mesa_is_format_compressed(texImage->TexFormat) && - screen->is_format_supported(screen, - stImage->pt->format, - stImage->pt->target, 0, - PIPE_BIND_RENDER_TARGET, 0)) { - if (!pixels) - goto done; - - if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, - format, type, pixels, unpack, texImage)) { - goto done; - } - } - - /* - * Prepare to store the texture data. Either map the gallium texture buffer - * memory or malloc space for it. - */ - if (stImage->pt) { - /* Store the image in the gallium texture memory buffer */ - if (format == GL_DEPTH_COMPONENT && - util_format_is_depth_and_stencil(stImage->pt->format)) - transfer_usage = PIPE_TRANSFER_READ_WRITE; - else - transfer_usage = PIPE_TRANSFER_WRITE; - - texImage->Data = st_texture_image_map(st, stImage, 0, - transfer_usage, 0, 0, width, height); - if(stImage->transfer) - dstRowStride = stImage->transfer->stride; - } - else { - /* Allocate regular memory and store the image there temporarily. */ - GLuint imageSize = _mesa_format_image_size(texImage->TexFormat, - width, height, depth); - dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width); - - texImage->Data = _mesa_align_malloc(imageSize, 16); - } - - if (!texImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); - return; - } - - if (!pixels) { - /* We've allocated texture memory, but have no pixel data - all done. */ - goto done; - } - - DBG("Upload image %dx%dx%d row_len %x pitch %x\n", - width, height, depth, width, dstRowStride); - - /* Copy user texture image into the texture buffer. - */ - if (compressed_src) { - const GLuint srcRowStride = - _mesa_format_row_stride(texImage->TexFormat, width); - if (dstRowStride == srcRowStride) { - memcpy(texImage->Data, pixels, imageSize); - } - else { - char *dst = texImage->Data; - const char *src = pixels; - GLuint i, bw, bh, lines; - _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh); - lines = (height + bh - 1) / bh; - - for (i = 0; i < lines; ++i) { - memcpy(dst, src, srcRowStride); - dst += dstRowStride; - src += srcRowStride; - } - } - } - else { - const GLuint srcImageStride = - _mesa_image_image_stride(unpack, width, height, format, type); - GLint i; - const GLubyte *src = (const GLubyte *) pixels; - - for (i = 0; i < depth; i++) { - if (!_mesa_texstore(ctx, dims, - texImage->_BaseFormat, - texImage->TexFormat, - texImage->Data, - 0, 0, 0, /* dstX/Y/Zoffset */ - dstRowStride, - texImage->ImageOffsets, - width, height, 1, - format, type, src, unpack)) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); - } - - if (stImage->pt && i + 1 < depth) { - /* unmap this slice */ - st_texture_image_unmap(st, stImage); - /* map next slice of 3D texture */ - texImage->Data = st_texture_image_map(st, stImage, i + 1, - transfer_usage, 0, 0, - width, height); - src += srcImageStride; - } - } - } - -done: - _mesa_unmap_teximage_pbo(ctx, unpack); - - if (stImage->pt && texImage->Data) { - st_texture_image_unmap(st, stImage); - texImage->Data = NULL; - } -} - - -static void -st_TexImage3D(struct gl_context * ctx, - GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint height, GLint depth, - GLint border, - GLenum format, GLenum type, const void *pixels, - const struct gl_pixelstore_attrib *unpack, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, - border, format, type, pixels, unpack, texObj, texImage, - 0, GL_FALSE); -} - - -static void -st_TexImage2D(struct gl_context * ctx, - GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint height, GLint border, - GLenum format, GLenum type, const void *pixels, - const struct gl_pixelstore_attrib *unpack, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, - format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); -} - - -static void -st_TexImage1D(struct gl_context * ctx, - GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint border, - GLenum format, GLenum type, const void *pixels, - const struct gl_pixelstore_attrib *unpack, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, - format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); -} - - -static void -st_CompressedTexImage2D(struct gl_context *ctx, GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint height, GLint border, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, - 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); -} - - - -/** - * glGetTexImage() helper: decompress a compressed texture by rendering - * a textured quad. Store the results in the user's buffer. - */ -static void -decompress_with_blit(struct gl_context * ctx, GLenum target, GLint level, - GLenum format, GLenum type, GLvoid *pixels, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct st_texture_image *stImage = st_texture_image(texImage); - struct st_texture_object *stObj = st_texture_object(texObj); - struct pipe_sampler_view *src_view = - st_get_texture_sampler_view(stObj, pipe); - const GLuint width = texImage->Width; - const GLuint height = texImage->Height; - struct pipe_surface *dst_surface; - struct pipe_resource *dst_texture; - struct pipe_transfer *tex_xfer; - unsigned bind = (PIPE_BIND_RENDER_TARGET | /* util_blit may choose to render */ - PIPE_BIND_TRANSFER_READ); - - /* create temp / dest surface */ - if (!util_create_rgba_surface(pipe, width, height, bind, - &dst_texture, &dst_surface)) { - _mesa_problem(ctx, "util_create_rgba_surface() failed " - "in decompress_with_blit()"); - return; - } - - /* blit/render/decompress */ - util_blit_pixels_tex(st->blit, - src_view, /* pipe_resource (src) */ - 0, 0, /* src x0, y0 */ - width, height, /* src x1, y1 */ - dst_surface, /* pipe_surface (dst) */ - 0, 0, /* dst x0, y0 */ - width, height, /* dst x1, y1 */ - 0.0, /* z */ - PIPE_TEX_MIPFILTER_NEAREST); - - /* map the dst_surface so we can read from it */ - tex_xfer = pipe_get_transfer(st_context(ctx)->pipe, - dst_texture, 0, 0, - PIPE_TRANSFER_READ, - 0, 0, width, height); - - pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); - - /* copy/pack data into user buffer */ - if (st_equal_formats(stImage->pt->format, format, type)) { - /* memcpy */ - const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format); - ubyte *map = pipe_transfer_map(pipe, tex_xfer); - GLuint row; - for (row = 0; row < height; row++) { - GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, - height, format, type, row, 0); - memcpy(dest, map, bytesPerRow); - map += tex_xfer->stride; - } - pipe_transfer_unmap(pipe, tex_xfer); - } - else { - /* format translation via floats */ - GLuint row; - enum pipe_format format = util_format_linear(dst_texture->format); - for (row = 0; row < height; row++) { - const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ - GLfloat rgba[4 * MAX_WIDTH]; - GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, - height, format, type, row, 0); - - if (ST_DEBUG & DEBUG_FALLBACK) - debug_printf("%s: fallback format translation\n", __FUNCTION__); - - /* get float[4] rgba row from surface */ - pipe_get_tile_rgba_format(pipe, tex_xfer, 0, row, width, 1, - format, rgba); - - _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, - type, dest, &ctx->Pack, transferOps); - } - } - - _mesa_unmap_pbo_dest(ctx, &ctx->Pack); - - pipe->transfer_destroy(pipe, tex_xfer); - - /* destroy the temp / dest surface */ - util_destroy_rgba_surface(dst_texture, dst_surface); -} - - - -/** - * Need to map texture image into memory before copying image data, - * then unmap it. - */ -static void -st_get_tex_image(struct gl_context * ctx, GLenum target, GLint level, - GLenum format, GLenum type, GLvoid * pixels, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage, GLboolean compressed_dst) -{ - struct st_context *st = st_context(ctx); - struct st_texture_image *stImage = st_texture_image(texImage); - const GLuint dstImageStride = - _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, - format, type); - GLuint depth, i; - GLubyte *dest; - - if (stImage->pt && - util_format_is_s3tc(stImage->pt->format) && - !compressed_dst) { - /* Need to decompress the texture. - * We'll do this by rendering a textured quad. - * Note that we only expect RGBA formats (no Z/depth formats). - */ - decompress_with_blit(ctx, target, level, format, type, pixels, - texObj, texImage); - return; - } - - /* Map */ - if (stImage->pt) { - /* Image is stored in hardware format in a buffer managed by the - * kernel. Need to explicitly map and unmap it. - */ - texImage->Data = st_texture_image_map(st, stImage, 0, - PIPE_TRANSFER_READ, 0, 0, - stImage->base.Width, - stImage->base.Height); - /* compute stride in texels from stride in bytes */ - texImage->RowStride = stImage->transfer->stride - * util_format_get_blockwidth(stImage->pt->format) - / util_format_get_blocksize(stImage->pt->format); - } - else { - /* Otherwise, the image should actually be stored in - * texImage->Data. This is pretty confusing for - * everybody, I'd much prefer to separate the two functions of - * texImage->Data - storage for texture images in main memory - * and access (ie mappings) of images. In other words, we'd - * create a new texImage->Map field and leave Data simply for - * storage. - */ - assert(texImage->Data); - } - - depth = texImage->Depth; - texImage->Depth = 1; - - dest = (GLubyte *) pixels; - - _mesa_set_fetch_functions(texImage, get_texture_dims(target)); - - for (i = 0; i < depth; i++) { - if (compressed_dst) { - _mesa_get_compressed_teximage(ctx, target, level, dest, - texObj, texImage); - } - else { - _mesa_get_teximage(ctx, target, level, format, type, dest, - texObj, texImage); - } - - if (stImage->pt && i + 1 < depth) { - /* unmap this slice */ - st_texture_image_unmap(st, stImage); - /* map next slice of 3D texture */ - texImage->Data = st_texture_image_map(st, stImage, i + 1, - PIPE_TRANSFER_READ, 0, 0, - stImage->base.Width, - stImage->base.Height); - dest += dstImageStride; - } - } - - texImage->Depth = depth; - - /* Unmap */ - if (stImage->pt) { - st_texture_image_unmap(st, stImage); - texImage->Data = NULL; - } -} - - -static void -st_GetTexImage(struct gl_context * ctx, GLenum target, GLint level, - GLenum format, GLenum type, GLvoid * pixels, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, - GL_FALSE); -} - - -static void -st_GetCompressedTexImage(struct gl_context *ctx, GLenum target, GLint level, - GLvoid *pixels, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, - GL_TRUE); -} - - - -static void -st_TexSubimage(struct gl_context *ctx, GLint dims, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint width, GLint height, GLint depth, - GLenum format, GLenum type, const void *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - struct st_context *st = st_context(ctx); - struct pipe_screen *screen = st->pipe->screen; - struct st_texture_image *stImage = st_texture_image(texImage); - GLuint dstRowStride; - const GLuint srcImageStride = - _mesa_image_image_stride(packing, width, height, format, type); - GLint i; - const GLubyte *src; - /* init to silence warning only: */ - enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; - - DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, - _mesa_lookup_enum_by_nr(target), - level, xoffset, yoffset, width, height); - - pixels = - _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, - type, pixels, packing, "glTexSubImage2D"); - if (!pixels) - return; - - /* See if we can do texture compression with a blit/render. - */ - if (!ctx->Mesa_DXTn && - _mesa_is_format_compressed(texImage->TexFormat) && - screen->is_format_supported(screen, - stImage->pt->format, - stImage->pt->target, 0, - PIPE_BIND_RENDER_TARGET, 0)) { - if (compress_with_blit(ctx, target, level, - xoffset, yoffset, zoffset, - width, height, depth, - format, type, pixels, packing, texImage)) { - goto done; - } - } - - /* Map buffer if necessary. Need to lock to prevent other contexts - * from uploading the buffer under us. - */ - if (stImage->pt) { - if (format == GL_DEPTH_COMPONENT && - util_format_is_depth_and_stencil(stImage->pt->format)) - transfer_usage = PIPE_TRANSFER_READ_WRITE; - else - transfer_usage = PIPE_TRANSFER_WRITE; - - texImage->Data = st_texture_image_map(st, stImage, zoffset, - transfer_usage, - xoffset, yoffset, - width, height); - } - - if (!texImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); - goto done; - } - - src = (const GLubyte *) pixels; - dstRowStride = stImage->transfer->stride; - - for (i = 0; i < depth; i++) { - if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat, - texImage->TexFormat, - texImage->Data, - 0, 0, 0, - dstRowStride, - texImage->ImageOffsets, - width, height, 1, - format, type, src, packing)) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); - } - - if (stImage->pt && i + 1 < depth) { - /* unmap this slice */ - st_texture_image_unmap(st, stImage); - /* map next slice of 3D texture */ - texImage->Data = st_texture_image_map(st, stImage, - zoffset + i + 1, - transfer_usage, - xoffset, yoffset, - width, height); - src += srcImageStride; - } - } - -done: - _mesa_unmap_teximage_pbo(ctx, packing); - - if (stImage->pt && texImage->Data) { - st_texture_image_unmap(st, stImage); - texImage->Data = NULL; - } -} - - - -static void -st_TexSubImage3D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format, GLenum type, const GLvoid *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, - width, height, depth, format, type, - pixels, packing, texObj, texImage); -} - - -static void -st_TexSubImage2D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLsizei width, GLsizei height, - GLenum format, GLenum type, const GLvoid * pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, - width, height, 1, format, type, - pixels, packing, texObj, texImage); -} - - -static void -st_TexSubImage1D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLsizei width, GLenum format, GLenum type, - const GLvoid * pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, - format, type, pixels, packing, texObj, texImage); -} - - -static void -st_CompressedTexSubImage1D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLsizei width, - GLenum format, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - assert(0); -} - - -static void -st_CompressedTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLsizei width, GLint height, - GLenum format, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - struct st_context *st = st_context(ctx); - struct st_texture_image *stImage = st_texture_image(texImage); - int srcBlockStride; - int dstBlockStride; - int y; - enum pipe_format pformat; - - if (stImage->pt) { - pformat = stImage->pt->format; - - texImage->Data = st_texture_image_map(st, stImage, 0, - PIPE_TRANSFER_WRITE, - xoffset, yoffset, - width, height); - - srcBlockStride = util_format_get_stride(pformat, width); - dstBlockStride = stImage->transfer->stride; - } else { - assert(stImage->pt); - /* TODO find good values for block and strides */ - /* TODO also adjust texImage->data for yoffset/xoffset */ - return; - } - - if (!texImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); - return; - } - - assert(xoffset % util_format_get_blockwidth(pformat) == 0); - assert(yoffset % util_format_get_blockheight(pformat) == 0); - - for (y = 0; y < height; y += util_format_get_blockheight(pformat)) { - /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ - const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y); - char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y); - memcpy(dst, src, util_format_get_stride(pformat, width)); - } - - if (stImage->pt) { - st_texture_image_unmap(st, stImage); - texImage->Data = NULL; - } -} - - -static void -st_CompressedTexSubImage3D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLsizei width, GLint height, GLint depth, - GLenum format, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - assert(0); -} - - - -/** - * Do a CopyTexSubImage operation using a read transfer from the source, - * a write transfer to the destination and get_tile()/put_tile() to access - * the pixels/texels. - * - * Note: srcY=0=TOP of renderbuffer - */ -static void -fallback_copy_texsubimage(struct gl_context *ctx, GLenum target, GLint level, - struct st_renderbuffer *strb, - struct st_texture_image *stImage, - GLenum baseFormat, - GLint destX, GLint destY, GLint destZ, - GLint srcX, GLint srcY, - GLsizei width, GLsizei height) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_transfer *src_trans; - GLvoid *texDest; - enum pipe_transfer_usage transfer_usage; - - if (ST_DEBUG & DEBUG_FALLBACK) - debug_printf("%s: fallback processing\n", __FUNCTION__); - - assert(width <= MAX_WIDTH); - - if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { - srcY = strb->Base.Height - srcY - height; - } - - src_trans = pipe_get_transfer(st_context(ctx)->pipe, - strb->texture, - 0, 0, - PIPE_TRANSFER_READ, - srcX, srcY, - width, height); - - if ((baseFormat == GL_DEPTH_COMPONENT || - baseFormat == GL_DEPTH_STENCIL) && - util_format_is_depth_and_stencil(stImage->pt->format)) - transfer_usage = PIPE_TRANSFER_READ_WRITE; - else - transfer_usage = PIPE_TRANSFER_WRITE; - - /* XXX this used to ignore destZ param */ - texDest = st_texture_image_map(st, stImage, destZ, transfer_usage, - destX, destY, width, height); - - if (baseFormat == GL_DEPTH_COMPONENT || - baseFormat == GL_DEPTH_STENCIL) { - const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || - ctx->Pixel.DepthBias != 0.0F); - GLint row, yStep; - - /* determine bottom-to-top vs. top-to-bottom order for src buffer */ - if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { - srcY = height - 1; - yStep = -1; - } - else { - srcY = 0; - yStep = 1; - } - - /* To avoid a large temp memory allocation, do copy row by row */ - for (row = 0; row < height; row++, srcY += yStep) { - uint data[MAX_WIDTH]; - pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data); - if (scaleOrBias) { - _mesa_scale_and_bias_depth_uint(ctx, width, data); - } - pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data); - } - } - else { - /* RGBA format */ - GLfloat *tempSrc = - (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); - - if (tempSrc && texDest) { - const GLint dims = 2; - const GLint dstRowStride = stImage->transfer->stride; - struct gl_texture_image *texImage = &stImage->base; - struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; - - if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { - unpack.Invert = GL_TRUE; - } - - /* get float/RGBA image from framebuffer */ - /* XXX this usually involves a lot of int/float conversion. - * try to avoid that someday. - */ - pipe_get_tile_rgba_format(pipe, src_trans, 0, 0, width, height, - util_format_linear(strb->texture->format), - tempSrc); - - /* Store into texture memory. - * Note that this does some special things such as pixel transfer - * ops and format conversion. In particular, if the dest tex format - * is actually RGBA but the user created the texture as GL_RGB we - * need to fill-in/override the alpha channel with 1.0. - */ - _mesa_texstore(ctx, dims, - texImage->_BaseFormat, - texImage->TexFormat, - texDest, - 0, 0, 0, - dstRowStride, - texImage->ImageOffsets, - width, height, 1, - GL_RGBA, GL_FLOAT, tempSrc, /* src */ - &unpack); - } - else { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); - } - - if (tempSrc) - free(tempSrc); - } - - st_texture_image_unmap(st, stImage); - pipe->transfer_destroy(pipe, src_trans); -} - - - -/** - * If the format of the src renderbuffer and the format of the dest - * texture are compatible (in terms of blitting), return a TGSI writemask - * to be used during the blit. - * If the src/dest are incompatible, return 0. - */ -static unsigned -compatible_src_dst_formats(struct gl_context *ctx, - const struct gl_renderbuffer *src, - const struct gl_texture_image *dst) -{ - /* Get logical base formats for the src and dest. - * That is, use the user-requested formats and not the actual, device- - * chosen formats. - * For example, the user may have requested an A8 texture but the - * driver may actually be using an RGBA texture format. When we - * copy/blit to that texture, we only want to copy the Alpha channel - * and not the RGB channels. - * - * Similarly, when the src FBO was created an RGB format may have been - * requested but the driver actually chose an RGBA format. In that case, - * we don't want to copy the undefined Alpha channel to the dest texture - * (it should be 1.0). - */ - const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat); - const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat); - - /** - * XXX when we have red-only and red/green renderbuffers we'll need - * to add more cases here (or implement a general-purpose routine that - * queries the existance of the R,G,B,A channels in the src and dest). - */ - if (srcFormat == dstFormat) { - /* This is the same as matching_base_formats, which should - * always pass, as it did previously. - */ - return TGSI_WRITEMASK_XYZW; - } - else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) { - /* Make sure that A in the dest is 1. The actual src format - * may be RGBA and have undefined A values. - */ - return TGSI_WRITEMASK_XYZ; - } - else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) { - /* Make sure that A in the dest is 1. The actual dst format - * may be RGBA and will need A=1 to provide proper alpha values - * when sampled later. - */ - return TGSI_WRITEMASK_XYZ; - } - else { - if (ST_DEBUG & DEBUG_FALLBACK) - debug_printf("%s failed for src %s, dst %s\n", - __FUNCTION__, - _mesa_lookup_enum_by_nr(srcFormat), - _mesa_lookup_enum_by_nr(dstFormat)); - - /* Otherwise fail. - */ - return 0; - } -} - - - -/** - * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. - * Note that the region to copy has already been clipped so we know we - * won't read from outside the source renderbuffer's bounds. - * - * Note: srcY=0=Bottom of renderbuffer (GL convention) - */ -static void -st_copy_texsubimage(struct gl_context *ctx, - GLenum target, GLint level, - GLint destX, GLint destY, GLint destZ, - GLint srcX, GLint srcY, - GLsizei width, GLsizei height) -{ - struct gl_texture_unit *texUnit = - &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - struct gl_texture_object *texObj = - _mesa_select_tex_object(ctx, texUnit, target); - struct gl_texture_image *texImage = - _mesa_select_tex_image(ctx, texObj, target, level); - struct st_texture_image *stImage = st_texture_image(texImage); - const GLenum texBaseFormat = texImage->_BaseFormat; - struct gl_framebuffer *fb = ctx->ReadBuffer; - struct st_renderbuffer *strb; - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = pipe->screen; - enum pipe_format dest_format, src_format; - GLboolean use_fallback = GL_TRUE; - GLboolean matching_base_formats; - GLuint format_writemask, sample_count; - struct pipe_surface *dest_surface = NULL; - GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); - - /* make sure finalize_textures has been called? - */ - if (0) st_validate_state(st); - - /* determine if copying depth or color data */ - if (texBaseFormat == GL_DEPTH_COMPONENT || - texBaseFormat == GL_DEPTH_STENCIL) { - strb = st_renderbuffer(fb->_DepthBuffer); - if (strb->Base.Wrapped) { - strb = st_renderbuffer(strb->Base.Wrapped); - } - } - else { - /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ - strb = st_renderbuffer(fb->_ColorReadBuffer); - } - - if (!strb || !strb->surface || !stImage->pt) { - debug_printf("%s: null strb or stImage\n", __FUNCTION__); - return; - } - - sample_count = strb->surface->texture->nr_samples; - /* I believe this would be legal, presumably would need to do a resolve - for color, and for depth/stencil spec says to just use one of the - depth/stencil samples per pixel? Need some transfer clarifications. */ - assert(sample_count < 2); - - if (srcX < 0) { - width -= -srcX; - destX += -srcX; - srcX = 0; - } - - if (srcY < 0) { - height -= -srcY; - destY += -srcY; - srcY = 0; - } - - if (destX < 0) { - width -= -destX; - srcX += -destX; - destX = 0; - } - - if (destY < 0) { - height -= -destY; - srcY += -destY; - destY = 0; - } - - if (width < 0 || height < 0) - return; - - - assert(strb); - assert(strb->surface); - assert(stImage->pt); - - src_format = strb->surface->format; - dest_format = stImage->pt->format; - - /* - * Determine if the src framebuffer and dest texture have the same - * base format. We need this to detect a case such as the framebuffer - * being GL_RGBA but the texture being GL_RGB. If the actual hardware - * texture format stores RGBA we need to set A=1 (overriding the - * framebuffer's alpha values). We can't do that with the blit or - * textured-quad paths. - */ - matching_base_formats = - (_mesa_get_format_base_format(strb->Base.Format) == - _mesa_get_format_base_format(texImage->TexFormat)); - format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage); - - if (ctx->_ImageTransferState == 0x0) { - - if (matching_base_formats && - src_format == dest_format && - !do_flip) - { - /* use surface_copy() / blit */ - struct pipe_box src_box; - u_box_2d_zslice(srcX, srcY, strb->surface->u.tex.first_layer, - width, height, &src_box); - - /* for resource_copy_region(), y=0=top, always */ - pipe->resource_copy_region(pipe, - /* dest */ - stImage->pt, - stImage->level, - destX, destY, destZ + stImage->face, - /* src */ - strb->texture, - strb->surface->u.tex.level, - &src_box); - use_fallback = GL_FALSE; - } - else if (format_writemask && - texBaseFormat != GL_DEPTH_COMPONENT && - texBaseFormat != GL_DEPTH_STENCIL && - screen->is_format_supported(screen, src_format, - PIPE_TEXTURE_2D, sample_count, - PIPE_BIND_SAMPLER_VIEW, - 0) && - screen->is_format_supported(screen, dest_format, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET, - 0)) { - /* draw textured quad to do the copy */ - GLint srcY0, srcY1; - struct pipe_surface surf_tmpl; - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - surf_tmpl.format = stImage->pt->format; - surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; - surf_tmpl.u.tex.level = stImage->level; - surf_tmpl.u.tex.first_layer = stImage->face + destZ; - surf_tmpl.u.tex.last_layer = stImage->face + destZ; - - dest_surface = pipe->create_surface(pipe, stImage->pt, - &surf_tmpl); - - if (do_flip) { - srcY1 = strb->Base.Height - srcY - height; - srcY0 = srcY1 + height; - } - else { - srcY0 = srcY; - srcY1 = srcY0 + height; - } - - util_blit_pixels_writemask(st->blit, - strb->texture, - strb->surface->u.tex.level, - srcX, srcY0, - srcX + width, srcY1, - strb->surface->u.tex.first_layer, - dest_surface, - destX, destY, - destX + width, destY + height, - 0.0, PIPE_TEX_MIPFILTER_NEAREST, - format_writemask); - use_fallback = GL_FALSE; - } - - if (dest_surface) - pipe_surface_reference(&dest_surface, NULL); - } - - if (use_fallback) { - /* software fallback */ - fallback_copy_texsubimage(ctx, target, level, - strb, stImage, texBaseFormat, - destX, destY, destZ, - srcX, srcY, width, height); - } -} - - - -static void -st_CopyTexImage1D(struct gl_context * ctx, GLenum target, GLint level, - GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLint border) -{ - struct gl_texture_unit *texUnit = - &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - struct gl_texture_object *texObj = - _mesa_select_tex_object(ctx, texUnit, target); - struct gl_texture_image *texImage = - _mesa_select_tex_image(ctx, texObj, target, level); - - /* Setup or redefine the texture object, texture and texture - * image. Don't populate yet. - */ - ctx->Driver.TexImage1D(ctx, target, level, internalFormat, - width, border, - GL_RGBA, CHAN_TYPE, NULL, - &ctx->DefaultPacking, texObj, texImage); - - st_copy_texsubimage(ctx, target, level, - 0, 0, 0, /* destX,Y,Z */ - x, y, width, 1); /* src X, Y, size */ -} - - -static void -st_CopyTexImage2D(struct gl_context * ctx, GLenum target, GLint level, - GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLsizei height, - GLint border) -{ - struct gl_texture_unit *texUnit = - &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - struct gl_texture_object *texObj = - _mesa_select_tex_object(ctx, texUnit, target); - struct gl_texture_image *texImage = - _mesa_select_tex_image(ctx, texObj, target, level); - - /* Setup or redefine the texture object, texture and texture - * image. Don't populate yet. - */ - ctx->Driver.TexImage2D(ctx, target, level, internalFormat, - width, height, border, - GL_RGBA, CHAN_TYPE, NULL, - &ctx->DefaultPacking, texObj, texImage); - - st_copy_texsubimage(ctx, target, level, - 0, 0, 0, /* destX,Y,Z */ - x, y, width, height); /* src X, Y, size */ -} - - -static void -st_CopyTexSubImage1D(struct gl_context * ctx, GLenum target, GLint level, - GLint xoffset, GLint x, GLint y, GLsizei width) -{ - const GLint yoffset = 0, zoffset = 0; - const GLsizei height = 1; - st_copy_texsubimage(ctx, target, level, - xoffset, yoffset, zoffset, /* destX,Y,Z */ - x, y, width, height); /* src X, Y, size */ -} - - -static void -st_CopyTexSubImage2D(struct gl_context * ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLint x, GLint y, GLsizei width, GLsizei height) -{ - const GLint zoffset = 0; - st_copy_texsubimage(ctx, target, level, - xoffset, yoffset, zoffset, /* destX,Y,Z */ - x, y, width, height); /* src X, Y, size */ -} - - -static void -st_CopyTexSubImage3D(struct gl_context * ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint x, GLint y, GLsizei width, GLsizei height) -{ - st_copy_texsubimage(ctx, target, level, - xoffset, yoffset, zoffset, /* destX,Y,Z */ - x, y, width, height); /* src X, Y, size */ -} - - -/** - * Copy image data from stImage into the texture object 'stObj' at level - * 'dstLevel'. - */ -static void -copy_image_data_to_texture(struct st_context *st, - struct st_texture_object *stObj, - GLuint dstLevel, - struct st_texture_image *stImage) -{ - /* debug checks */ - { - const struct gl_texture_image *dstImage = - stObj->base.Image[stImage->face][stImage->level]; - assert(dstImage); - assert(dstImage->Width == stImage->base.Width); - assert(dstImage->Height == stImage->base.Height); - assert(dstImage->Depth == stImage->base.Depth); - } - - if (stImage->pt) { - /* Copy potentially with the blitter: - */ - st_texture_image_copy(st->pipe, - stObj->pt, dstLevel, /* dest texture, level */ - stImage->pt, stImage->level, /* src texture, level */ - stImage->face); - - pipe_resource_reference(&stImage->pt, NULL); - } - else if (stImage->base.Data) { - st_texture_image_data(st, - stObj->pt, - stImage->face, - dstLevel, - stImage->base.Data, - stImage->base.RowStride * - util_format_get_blocksize(stObj->pt->format), - stImage->base.RowStride * - stImage->base.Height * - util_format_get_blocksize(stObj->pt->format)); - _mesa_align_free(stImage->base.Data); - stImage->base.Data = NULL; - } - - pipe_resource_reference(&stImage->pt, stObj->pt); -} - - -/** - * Called during state validation. When this function is finished, - * the texture object should be ready for rendering. - * \return GL_TRUE for success, GL_FALSE for failure (out of mem) - */ -GLboolean -st_finalize_texture(struct gl_context *ctx, - struct pipe_context *pipe, - struct gl_texture_object *tObj) -{ - struct st_context *st = st_context(ctx); - struct st_texture_object *stObj = st_texture_object(tObj); - const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; - GLuint face; - struct st_texture_image *firstImage; - enum pipe_format firstImageFormat; - - if (stObj->base._Complete) { - /* The texture is complete and we know exactly how many mipmap levels - * are present/needed. This is conditional because we may be called - * from the st_generate_mipmap() function when the texture object is - * incomplete. In that case, we'll have set stObj->lastLevel before - * we get here. - */ - if (stObj->base.MinFilter == GL_LINEAR || - stObj->base.MinFilter == GL_NEAREST) - stObj->lastLevel = stObj->base.BaseLevel; - else - stObj->lastLevel = stObj->base._MaxLevel; - } - - firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); - assert(firstImage); - - /* If both firstImage and stObj point to a texture which can contain - * all active images, favour firstImage. Note that because of the - * completeness requirement, we know that the image dimensions - * will match. - */ - if (firstImage->pt && - firstImage->pt != stObj->pt && - (!stObj->pt || firstImage->pt->last_level >= stObj->pt->last_level)) { - pipe_resource_reference(&stObj->pt, firstImage->pt); - pipe_sampler_view_reference(&stObj->sampler_view, NULL); - } - - /* Find gallium format for the Mesa texture */ - firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat); - - /* If we already have a gallium texture, check that it matches the texture - * object's format, target, size, num_levels, etc. - */ - if (stObj->pt) { - if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || - !st_sampler_compat_formats(stObj->pt->format, firstImageFormat) || - stObj->pt->last_level < stObj->lastLevel || - stObj->pt->width0 != stObj->width0 || - stObj->pt->height0 != stObj->height0 || - stObj->pt->depth0 != stObj->depth0) - { - /* The gallium texture does not match the Mesa texture so delete the - * gallium texture now. We'll make a new one below. - */ - pipe_resource_reference(&stObj->pt, NULL); - pipe_sampler_view_reference(&stObj->sampler_view, NULL); - st->dirty.st |= ST_NEW_FRAMEBUFFER; - } - } - - /* May need to create a new gallium texture: - */ - if (!stObj->pt) { - GLuint bindings = default_bindings(st, firstImageFormat); - - stObj->pt = st_texture_create(st, - gl_target_to_pipe(stObj->base.Target), - firstImageFormat, - stObj->lastLevel, - stObj->width0, - stObj->height0, - stObj->depth0, - bindings); - - if (!stObj->pt) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); - return GL_FALSE; - } - } - - /* Pull in any images not in the object's texture: - */ - for (face = 0; face < nr_faces; face++) { - GLuint level; - for (level = stObj->base.BaseLevel; level <= stObj->lastLevel; level++) { - struct st_texture_image *stImage = - st_texture_image(stObj->base.Image[face][level]); - - /* Need to import images in main memory or held in other textures. - */ - if (stImage && stObj->pt != stImage->pt) { - copy_image_data_to_texture(st, stObj, level, stImage); - } - } - } - - return GL_TRUE; -} - - -/** - * Returns pointer to a default/dummy texture. - * This is typically used when the current shader has tex/sample instructions - * but the user has not provided a (any) texture(s). - */ -struct gl_texture_object * -st_get_default_texture(struct st_context *st) -{ - if (!st->default_texture) { - static const GLenum target = GL_TEXTURE_2D; - GLubyte pixels[16][16][4]; - struct gl_texture_object *texObj; - struct gl_texture_image *texImg; - GLuint i, j; - - /* The ARB_fragment_program spec says (0,0,0,1) should be returned - * when attempting to sample incomplete textures. - */ - for (i = 0; i < 16; i++) { - for (j = 0; j < 16; j++) { - pixels[i][j][0] = 0; - pixels[i][j][1] = 0; - pixels[i][j][2] = 0; - pixels[i][j][3] = 255; - } - } - - texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); - - texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); - - _mesa_init_teximage_fields(st->ctx, target, texImg, - 16, 16, 1, 0, /* w, h, d, border */ - GL_RGBA, MESA_FORMAT_RGBA8888); - - st_TexImage(st->ctx, 2, target, - 0, GL_RGBA, /* level, intformat */ - 16, 16, 1, 0, /* w, h, d, border */ - GL_RGBA, GL_UNSIGNED_BYTE, pixels, - &st->ctx->DefaultPacking, - texObj, texImg, - 0, 0); - - texObj->MinFilter = GL_NEAREST; - texObj->MagFilter = GL_NEAREST; - texObj->_Complete = GL_TRUE; - - st->default_texture = texObj; - } - return st->default_texture; -} - - -void -st_init_texture_functions(struct dd_function_table *functions) -{ - functions->ChooseTextureFormat = st_ChooseTextureFormat; - functions->TexImage1D = st_TexImage1D; - functions->TexImage2D = st_TexImage2D; - functions->TexImage3D = st_TexImage3D; - functions->TexSubImage1D = st_TexSubImage1D; - functions->TexSubImage2D = st_TexSubImage2D; - functions->TexSubImage3D = st_TexSubImage3D; - functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; - functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; - functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; - functions->CopyTexImage1D = st_CopyTexImage1D; - functions->CopyTexImage2D = st_CopyTexImage2D; - functions->CopyTexSubImage1D = st_CopyTexSubImage1D; - functions->CopyTexSubImage2D = st_CopyTexSubImage2D; - functions->CopyTexSubImage3D = st_CopyTexSubImage3D; - functions->GenerateMipmap = st_generate_mipmap; - - functions->GetTexImage = st_GetTexImage; - - /* compressed texture functions */ - functions->CompressedTexImage2D = st_CompressedTexImage2D; - functions->GetCompressedTexImage = st_GetCompressedTexImage; - - functions->NewTextureObject = st_NewTextureObject; - functions->NewTextureImage = st_NewTextureImage; - functions->DeleteTexture = st_DeleteTextureObject; - functions->FreeTexImageData = st_FreeTextureImageData; - - functions->TextureMemCpy = do_memcpy; - - /* XXX Temporary until we can query pipe's texture sizes */ - functions->TestProxyTexImage = _mesa_test_proxy_teximage; -} +/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "main/mfeatures.h"
+#include "main/bufferobj.h"
+#include "main/enums.h"
+#include "main/fbobject.h"
+#include "main/formats.h"
+#include "main/image.h"
+#include "main/imports.h"
+#include "main/macros.h"
+#include "main/mipmap.h"
+#include "main/pack.h"
+#include "main/pixeltransfer.h"
+#include "main/texcompress.h"
+#include "main/texfetch.h"
+#include "main/texgetimage.h"
+#include "main/teximage.h"
+#include "main/texobj.h"
+#include "main/texstore.h"
+
+#include "state_tracker/st_debug.h"
+#include "state_tracker/st_context.h"
+#include "state_tracker/st_cb_fbo.h"
+#include "state_tracker/st_cb_flush.h"
+#include "state_tracker/st_cb_texture.h"
+#include "state_tracker/st_format.h"
+#include "state_tracker/st_texture.h"
+#include "state_tracker/st_gen_mipmap.h"
+#include "state_tracker/st_atom.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "util/u_inlines.h"
+#include "pipe/p_shader_tokens.h"
+#include "util/u_tile.h"
+#include "util/u_blit.h"
+#include "util/u_format.h"
+#include "util/u_surface.h"
+#include "util/u_sampler.h"
+#include "util/u_math.h"
+#include "util/u_box.h"
+
+#define DBG if (0) printf
+
+
+static enum pipe_texture_target
+gl_target_to_pipe(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ return PIPE_TEXTURE_1D;
+ case GL_TEXTURE_2D:
+ return PIPE_TEXTURE_2D;
+ case GL_TEXTURE_RECTANGLE_NV:
+ return PIPE_TEXTURE_RECT;
+ case GL_TEXTURE_3D:
+ return PIPE_TEXTURE_3D;
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ return PIPE_TEXTURE_CUBE;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ return PIPE_TEXTURE_1D_ARRAY;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return PIPE_TEXTURE_2D_ARRAY;
+ default:
+ assert(0);
+ return 0;
+ }
+}
+
+
+/** called via ctx->Driver.NewTextureImage() */
+static struct gl_texture_image *
+st_NewTextureImage(struct gl_context * ctx)
+{
+ DBG("%s\n", __FUNCTION__);
+ (void) ctx;
+ return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image);
+}
+
+
+/** called via ctx->Driver.NewTextureObject() */
+static struct gl_texture_object *
+st_NewTextureObject(struct gl_context * ctx, GLuint name, GLenum target)
+{
+ struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object);
+
+ DBG("%s\n", __FUNCTION__);
+ _mesa_initialize_texture_object(&obj->base, name, target);
+
+ return &obj->base;
+}
+
+/** called via ctx->Driver.DeleteTextureObject() */
+static void
+st_DeleteTextureObject(struct gl_context *ctx,
+ struct gl_texture_object *texObj)
+{
+ struct st_context *st = st_context(ctx);
+ struct st_texture_object *stObj = st_texture_object(texObj);
+ if (stObj->pt)
+ pipe_resource_reference(&stObj->pt, NULL);
+ if (stObj->sampler_view) {
+ if (stObj->sampler_view->context != st->pipe) {
+ /* Take "ownership" of this texture sampler view by setting
+ * its context pointer to this context. This avoids potential
+ * crashes when the texture object is shared among contexts
+ * and the original/owner context has already been destroyed.
+ */
+ stObj->sampler_view->context = st->pipe;
+ }
+ pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+ }
+ _mesa_delete_texture_object(ctx, texObj);
+}
+
+
+/** called via ctx->Driver.FreeTexImageData() */
+static void
+st_FreeTextureImageData(struct gl_context * ctx, struct gl_texture_image *texImage)
+{
+ struct st_texture_image *stImage = st_texture_image(texImage);
+
+ DBG("%s\n", __FUNCTION__);
+
+ if (stImage->pt) {
+ pipe_resource_reference(&stImage->pt, NULL);
+ }
+
+ if (texImage->Data) {
+ _mesa_align_free(texImage->Data);
+ texImage->Data = NULL;
+ }
+}
+
+
+/**
+ * From linux kernel i386 header files, copes with odd sizes better
+ * than COPY_DWORDS would:
+ * XXX Put this in src/mesa/main/imports.h ???
+ */
+#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
+static INLINE void *
+__memcpy(void *to, const void *from, size_t n)
+{
+ int d0, d1, d2;
+ __asm__ __volatile__("rep ; movsl\n\t"
+ "testb $2,%b4\n\t"
+ "je 1f\n\t"
+ "movsw\n"
+ "1:\ttestb $1,%b4\n\t"
+ "je 2f\n\t"
+ "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2)
+ :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from)
+ :"memory");
+ return (to);
+}
+#else
+#define __memcpy(a,b,c) memcpy(a,b,c)
+#endif
+
+
+/**
+ * The system memcpy (at least on ubuntu 5.10) has problems copying
+ * to agp (writecombined) memory from a source which isn't 64-byte
+ * aligned - there is a 4x performance falloff.
+ *
+ * The x86 __memcpy is immune to this but is slightly slower
+ * (10%-ish) than the system memcpy.
+ *
+ * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
+ * isn't much faster than x86_memcpy for agp copies.
+ *
+ * TODO: switch dynamically.
+ */
+static void *
+do_memcpy(void *dest, const void *src, size_t n)
+{
+ if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) {
+ return __memcpy(dest, src, n);
+ }
+ else
+ return memcpy(dest, src, n);
+}
+
+
+/**
+ * Return default texture resource binding bitmask for the given format.
+ */
+static GLuint
+default_bindings(struct st_context *st, enum pipe_format format)
+{
+ struct pipe_screen *screen = st->pipe->screen;
+ const unsigned target = PIPE_TEXTURE_2D;
+ const unsigned geom = 0x0;
+ unsigned bindings;
+
+ if (util_format_is_depth_or_stencil(format))
+ bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL;
+ else
+ bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
+
+ if (screen->is_format_supported(screen, format, target, 0, bindings, geom))
+ return bindings;
+ else
+ return PIPE_BIND_SAMPLER_VIEW;
+}
+
+
+/** Return number of image dimensions (1, 2 or 3) for a texture target. */
+static GLuint
+get_texture_dims(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ return 1;
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return 2;
+ case GL_TEXTURE_3D:
+ return 3;
+ default:
+ assert(0 && "invalid texture target in get_texture_dims()");
+ return 1;
+ }
+}
+
+
+/**
+ * Try to allocate a pipe_resource object for the given st_texture_object.
+ *
+ * We use the given st_texture_image as a clue to determine the size of the
+ * mipmap image at level=0.
+ *
+ * \return GL_TRUE for success, GL_FALSE if out of memory.
+ */
+static GLboolean
+guess_and_alloc_texture(struct st_context *st,
+ struct st_texture_object *stObj,
+ const struct st_texture_image *stImage)
+{
+ const GLuint dims = get_texture_dims(stObj->base.Target);
+ GLuint level, lastLevel, width, height, depth;
+ GLuint bindings;
+ GLuint ptWidth, ptHeight, ptDepth, ptLayers;
+ enum pipe_format fmt;
+
+ DBG("%s\n", __FUNCTION__);
+
+ assert(!stObj->pt);
+
+ level = stImage->level;
+ width = stImage->base.Width2; /* size w/out border */
+ height = stImage->base.Height2;
+ depth = stImage->base.Depth2;
+
+ assert(width > 0);
+ assert(height > 0);
+ assert(depth > 0);
+
+ /* Depending on the image's size, we can't always make a guess here.
+ */
+ if (level > 0) {
+ if ( (dims >= 1 && width == 1) ||
+ (dims >= 2 && height == 1) ||
+ (dims >= 3 && depth == 1) ) {
+ /* we can't determine the image size at level=0 */
+ stObj->width0 = stObj->height0 = stObj->depth0 = 0;
+ /* this is not an out of memory error */
+ return GL_TRUE;
+ }
+ }
+
+ /* grow the image size until we hit level = 0 */
+ while (level > 0) {
+ if (width != 1)
+ width <<= 1;
+ if (height != 1)
+ height <<= 1;
+ if (depth != 1)
+ depth <<= 1;
+ level--;
+ }
+
+ assert(level == 0);
+
+ /* At this point, (width x height x depth) is the expected size of
+ * the level=0 mipmap image.
+ */
+
+ /* Guess a reasonable value for lastLevel. With OpenGL we have no
+ * idea how many mipmap levels will be in a texture until we start
+ * to render with it. Make an educated guess here but be prepared
+ * to re-allocating a texture buffer with space for more (or fewer)
+ * mipmap levels later.
+ */
+ if ((stObj->base.MinFilter == GL_NEAREST ||
+ stObj->base.MinFilter == GL_LINEAR ||
+ stImage->base._BaseFormat == GL_DEPTH_COMPONENT ||
+ stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) &&
+ !stObj->base.GenerateMipmap &&
+ stImage->level == 0) {
+ /* only alloc space for a single mipmap level */
+ lastLevel = 0;
+ }
+ else {
+ /* alloc space for a full mipmap */
+ GLuint l2width = util_logbase2(width);
+ GLuint l2height = util_logbase2(height);
+ GLuint l2depth = util_logbase2(depth);
+ lastLevel = MAX2(MAX2(l2width, l2height), l2depth);
+ }
+
+ /* Save the level=0 dimensions */
+ stObj->width0 = width;
+ stObj->height0 = height;
+ stObj->depth0 = depth;
+
+ fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat);
+
+ bindings = default_bindings(st, fmt);
+
+ st_gl_texture_dims_to_pipe_dims(stObj->base.Target,
+ width, height, depth,
+ &ptWidth, &ptHeight, &ptDepth, &ptLayers);
+
+ stObj->pt = st_texture_create(st,
+ gl_target_to_pipe(stObj->base.Target),
+ fmt,
+ lastLevel,
+ ptWidth,
+ ptHeight,
+ ptDepth,
+ ptLayers,
+ bindings);
+
+ DBG("%s returning %d\n", __FUNCTION__, (stObj->pt != NULL));
+
+ return stObj->pt != NULL;
+}
+
+
+/**
+ * Adjust pixel unpack params and image dimensions to strip off the
+ * texture border.
+ * Gallium doesn't support texture borders. They've seldem been used
+ * and seldom been implemented correctly anyway.
+ * \param unpackNew returns the new pixel unpack parameters
+ */
+static void
+strip_texture_border(GLint border,
+ GLint *width, GLint *height, GLint *depth,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_pixelstore_attrib *unpackNew)
+{
+ assert(border > 0); /* sanity check */
+
+ *unpackNew = *unpack;
+
+ if (unpackNew->RowLength == 0)
+ unpackNew->RowLength = *width;
+
+ if (depth && unpackNew->ImageHeight == 0)
+ unpackNew->ImageHeight = *height;
+
+ unpackNew->SkipPixels += border;
+ if (height)
+ unpackNew->SkipRows += border;
+ if (depth)
+ unpackNew->SkipImages += border;
+
+ assert(*width >= 3);
+ *width = *width - 2 * border;
+ if (height && *height >= 3)
+ *height = *height - 2 * border;
+ if (depth && *depth >= 3)
+ *depth = *depth - 2 * border;
+}
+
+
+/**
+ * Try to do texture compression via rendering. If the Gallium driver
+ * can render into a compressed surface this will allow us to do texture
+ * compression.
+ * \return GL_TRUE for success, GL_FALSE for failure
+ */
+static GLboolean
+compress_with_blit(struct gl_context * ctx,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_image *texImage)
+{
+ const GLuint dstImageOffsets[1] = {0};
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ gl_format mesa_format;
+ struct pipe_resource templ;
+ struct pipe_resource *src_tex;
+ struct pipe_sampler_view view_templ;
+ struct pipe_sampler_view *src_view;
+ struct pipe_surface *dst_surface, surf_tmpl;
+ struct pipe_transfer *tex_xfer;
+ void *map;
+
+ if (!stImage->pt) {
+ /* XXX: Can this happen? Should we assert? */
+ return GL_FALSE;
+ }
+
+ /* get destination surface (in the compressed texture) */
+ memset(&surf_tmpl, 0, sizeof(surf_tmpl));
+ surf_tmpl.format = stImage->pt->format;
+ surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
+ surf_tmpl.u.tex.level = stImage->level;
+ surf_tmpl.u.tex.first_layer = stImage->face;
+ surf_tmpl.u.tex.last_layer = stImage->face;
+ dst_surface = pipe->create_surface(pipe, stImage->pt, &surf_tmpl);
+ if (!dst_surface) {
+ /* can't render into this format (or other problem) */
+ return GL_FALSE;
+ }
+
+ /* Choose format for the temporary RGBA texture image.
+ */
+ mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type);
+ assert(mesa_format);
+ if (!mesa_format)
+ return GL_FALSE;
+
+ /* Create the temporary source texture
+ */
+ memset(&templ, 0, sizeof(templ));
+ templ.target = st->internal_target;
+ templ.format = st_mesa_format_to_pipe_format(mesa_format);
+ templ.width0 = width;
+ templ.height0 = height;
+ templ.depth0 = 1;
+ templ.array_size = 1;
+ templ.last_level = 0;
+ templ.usage = PIPE_USAGE_DEFAULT;
+ templ.bind = PIPE_BIND_SAMPLER_VIEW;
+ src_tex = screen->resource_create(screen, &templ);
+
+ if (!src_tex)
+ return GL_FALSE;
+
+ /* Put user's tex data into the temporary texture
+ */
+ tex_xfer = pipe_get_transfer(st_context(ctx)->pipe, src_tex,
+ 0, 0, /* layer, level are zero */
+ PIPE_TRANSFER_WRITE,
+ 0, 0, width, height); /* x, y, w, h */
+ map = pipe_transfer_map(pipe, tex_xfer);
+
+ _mesa_texstore(ctx, 2, GL_RGBA, mesa_format,
+ map, /* dest ptr */
+ 0, 0, 0, /* dest x/y/z offset */
+ tex_xfer->stride, /* dest row stride (bytes) */
+ dstImageOffsets, /* image offsets (for 3D only) */
+ width, height, 1, /* size */
+ format, type, /* source format/type */
+ pixels, /* source data */
+ unpack); /* source data packing */
+
+ pipe_transfer_unmap(pipe, tex_xfer);
+ pipe->transfer_destroy(pipe, tex_xfer);
+
+ /* Create temporary sampler view */
+ u_sampler_view_default_template(&view_templ,
+ src_tex,
+ src_tex->format);
+ src_view = pipe->create_sampler_view(pipe, src_tex, &view_templ);
+
+
+ /* copy / compress image */
+ util_blit_pixels_tex(st->blit,
+ src_view, /* sampler view (src) */
+ 0, 0, /* src x0, y0 */
+ width, height, /* src x1, y1 */
+ dst_surface, /* pipe_surface (dst) */
+ xoffset, yoffset, /* dst x0, y0 */
+ xoffset + width, /* dst x1 */
+ yoffset + height, /* dst y1 */
+ 0.0, /* z */
+ PIPE_TEX_MIPFILTER_NEAREST);
+
+ pipe_surface_reference(&dst_surface, NULL);
+ pipe_resource_reference(&src_tex, NULL);
+ pipe_sampler_view_reference(&src_view, NULL);
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Do glTexImage1/2/3D().
+ */
+static void
+st_TexImage(struct gl_context * ctx,
+ GLint dims,
+ GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth,
+ GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage,
+ GLsizei imageSize, GLboolean compressed_src)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_screen *screen = st->pipe->screen;
+ struct st_texture_object *stObj = st_texture_object(texObj);
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ GLuint dstRowStride = 0;
+ struct gl_pixelstore_attrib unpackNB;
+ enum pipe_transfer_usage transfer_usage = 0;
+
+ DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
+ _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
+
+ /* switch to "normal" */
+ if (stObj->surface_based) {
+ gl_format texFormat;
+
+ _mesa_clear_texture_object(ctx, texObj);
+ pipe_resource_reference(&stObj->pt, NULL);
+
+ /* oops, need to init this image again */
+ texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
+ internalFormat, format, type);
+
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ width, height, depth, border,
+ internalFormat, texFormat);
+
+ stObj->surface_based = GL_FALSE;
+ }
+
+ /* gallium does not support texture borders, strip it off */
+ if (border) {
+ strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB);
+ unpack = &unpackNB;
+ texImage->Width = width;
+ texImage->Height = height;
+ texImage->Depth = depth;
+ texImage->Border = 0;
+ border = 0;
+ }
+ else {
+ assert(texImage->Width == width);
+ assert(texImage->Height == height);
+ assert(texImage->Depth == depth);
+ }
+
+ stImage->face = _mesa_tex_target_to_face(target);
+ stImage->level = level;
+
+ _mesa_set_fetch_functions(texImage, dims);
+
+ /* Release the reference to a potentially orphaned buffer.
+ * Release any old malloced memory.
+ */
+ if (stImage->pt) {
+ pipe_resource_reference(&stImage->pt, NULL);
+ assert(!texImage->Data);
+ }
+ else if (texImage->Data) {
+ _mesa_align_free(texImage->Data);
+ }
+
+ /*
+ * See if the new image is somehow incompatible with the existing
+ * mipmap. If so, free the old mipmap.
+ */
+ if (stObj->pt) {
+ if (level > (GLint) stObj->pt->last_level ||
+ !st_texture_match_image(stObj->pt, &stImage->base,
+ stImage->face, stImage->level)) {
+ DBG("release it\n");
+ pipe_resource_reference(&stObj->pt, NULL);
+ assert(!stObj->pt);
+ pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+ }
+ }
+
+ if (width == 0 || height == 0 || depth == 0) {
+ /* stop after freeing old image */
+ return;
+ }
+
+ if (!stObj->pt) {
+ if (!guess_and_alloc_texture(st, stObj, stImage)) {
+ /* Probably out of memory.
+ * Try flushing any pending rendering, then retry.
+ */
+ st_finish(st);
+ if (!guess_and_alloc_texture(st, stObj, stImage)) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
+ return;
+ }
+ }
+ }
+
+ assert(!stImage->pt);
+
+ /* Check if this texture image can live inside the texture object's buffer.
+ * If so, store the image there. Otherwise the image will temporarily live
+ * in its own buffer.
+ */
+ if (stObj->pt &&
+ st_texture_match_image(stObj->pt, &stImage->base,
+ stImage->face, stImage->level)) {
+
+ pipe_resource_reference(&stImage->pt, stObj->pt);
+ assert(stImage->pt);
+ }
+
+ if (!stImage->pt)
+ DBG("XXX: Image did not fit into texture - storing in local memory!\n");
+
+ /* Pixel data may come from regular user memory or a PBO. For the later,
+ * do bounds checking and map the PBO to read pixels data from it.
+ *
+ * XXX we should try to use a GPU-accelerated path to copy the image data
+ * from the PBO to the texture.
+ */
+ if (compressed_src) {
+ pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
+ unpack,
+ "glCompressedTexImage");
+ }
+ else {
+ pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
+ format, type,
+ pixels, unpack, "glTexImage");
+ }
+
+ /* See if we can do texture compression with a blit/render.
+ */
+ if (!compressed_src &&
+ !ctx->Mesa_DXTn &&
+ _mesa_is_format_compressed(texImage->TexFormat) &&
+ screen->is_format_supported(screen,
+ stImage->pt->format,
+ stImage->pt->target, 0,
+ PIPE_BIND_RENDER_TARGET, 0)) {
+ if (!pixels)
+ goto done;
+
+ if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth,
+ format, type, pixels, unpack, texImage)) {
+ goto done;
+ }
+ }
+
+ /*
+ * Prepare to store the texture data. Either map the gallium texture buffer
+ * memory or malloc space for it.
+ */
+ if (stImage->pt) {
+ /* Store the image in the gallium texture memory buffer */
+ if (format == GL_DEPTH_COMPONENT &&
+ util_format_is_depth_and_stencil(stImage->pt->format))
+ transfer_usage = PIPE_TRANSFER_READ_WRITE;
+ else
+ transfer_usage = PIPE_TRANSFER_WRITE;
+
+ texImage->Data = st_texture_image_map(st, stImage, 0,
+ transfer_usage, 0, 0, width, height);
+ if(stImage->transfer)
+ dstRowStride = stImage->transfer->stride;
+ }
+ else {
+ /* Allocate regular memory and store the image there temporarily. */
+ GLuint imageSize = _mesa_format_image_size(texImage->TexFormat,
+ width, height, depth);
+ dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width);
+
+ texImage->Data = _mesa_align_malloc(imageSize, 16);
+ }
+
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
+ return;
+ }
+
+ if (!pixels) {
+ /* We've allocated texture memory, but have no pixel data - all done. */
+ goto done;
+ }
+
+ DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
+ width, height, depth, width, dstRowStride);
+
+ /* Copy user texture image into the texture buffer.
+ */
+ if (compressed_src) {
+ const GLuint srcRowStride =
+ _mesa_format_row_stride(texImage->TexFormat, width);
+ if (dstRowStride == srcRowStride) {
+ memcpy(texImage->Data, pixels, imageSize);
+ }
+ else {
+ char *dst = texImage->Data;
+ const char *src = pixels;
+ GLuint i, bw, bh, lines;
+ _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
+ lines = (height + bh - 1) / bh;
+
+ for (i = 0; i < lines; ++i) {
+ memcpy(dst, src, srcRowStride);
+ dst += dstRowStride;
+ src += srcRowStride;
+ }
+ }
+ }
+ else {
+ const GLuint srcImageStride =
+ _mesa_image_image_stride(unpack, width, height, format, type);
+ GLint i;
+ const GLubyte *src = (const GLubyte *) pixels;
+
+ for (i = 0; i < depth; i++) {
+ if (!_mesa_texstore(ctx, dims,
+ texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride,
+ texImage->ImageOffsets,
+ width, height, 1,
+ format, type, src, unpack)) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
+ }
+
+ if (stImage->pt && i + 1 < depth) {
+ /* unmap this slice */
+ st_texture_image_unmap(st, stImage);
+ /* map next slice of 3D texture */
+ texImage->Data = st_texture_image_map(st, stImage, i + 1,
+ transfer_usage, 0, 0,
+ width, height);
+ src += srcImageStride;
+ }
+ }
+ }
+
+done:
+ _mesa_unmap_teximage_pbo(ctx, unpack);
+
+ if (stImage->pt && texImage->Data) {
+ st_texture_image_unmap(st, stImage);
+ texImage->Data = NULL;
+ }
+}
+
+
+static void
+st_TexImage3D(struct gl_context * ctx,
+ GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth,
+ GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth,
+ border, format, type, pixels, unpack, texObj, texImage,
+ 0, GL_FALSE);
+}
+
+
+static void
+st_TexImage2D(struct gl_context * ctx,
+ GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
+ format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
+}
+
+
+static void
+st_TexImage1D(struct gl_context * ctx,
+ GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border,
+ format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
+}
+
+
+static void
+st_CompressedTexImage2D(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
+ 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
+}
+
+
+
+/**
+ * glGetTexImage() helper: decompress a compressed texture by rendering
+ * a textured quad. Store the results in the user's buffer.
+ */
+static void
+decompress_with_blit(struct gl_context * ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ struct st_texture_object *stObj = st_texture_object(texObj);
+ struct pipe_sampler_view *src_view =
+ st_get_texture_sampler_view(stObj, pipe);
+ const GLuint width = texImage->Width;
+ const GLuint height = texImage->Height;
+ struct pipe_surface *dst_surface;
+ struct pipe_resource *dst_texture;
+ struct pipe_transfer *tex_xfer;
+ unsigned bind = (PIPE_BIND_RENDER_TARGET | /* util_blit may choose to render */
+ PIPE_BIND_TRANSFER_READ);
+
+ /* create temp / dest surface */
+ if (!util_create_rgba_surface(pipe, width, height, bind,
+ &dst_texture, &dst_surface)) {
+ _mesa_problem(ctx, "util_create_rgba_surface() failed "
+ "in decompress_with_blit()");
+ return;
+ }
+
+ /* blit/render/decompress */
+ util_blit_pixels_tex(st->blit,
+ src_view, /* pipe_resource (src) */
+ 0, 0, /* src x0, y0 */
+ width, height, /* src x1, y1 */
+ dst_surface, /* pipe_surface (dst) */
+ 0, 0, /* dst x0, y0 */
+ width, height, /* dst x1, y1 */
+ 0.0, /* z */
+ PIPE_TEX_MIPFILTER_NEAREST);
+
+ /* map the dst_surface so we can read from it */
+ tex_xfer = pipe_get_transfer(st_context(ctx)->pipe,
+ dst_texture, 0, 0,
+ PIPE_TRANSFER_READ,
+ 0, 0, width, height);
+
+ pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels);
+
+ /* copy/pack data into user buffer */
+ if (st_equal_formats(stImage->pt->format, format, type)) {
+ /* memcpy */
+ const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format);
+ ubyte *map = pipe_transfer_map(pipe, tex_xfer);
+ GLuint row;
+ for (row = 0; row < height; row++) {
+ GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
+ height, format, type, row, 0);
+ memcpy(dest, map, bytesPerRow);
+ map += tex_xfer->stride;
+ }
+ pipe_transfer_unmap(pipe, tex_xfer);
+ }
+ else {
+ /* format translation via floats */
+ GLuint row;
+ enum pipe_format format = util_format_linear(dst_texture->format);
+ for (row = 0; row < height; row++) {
+ const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */
+ GLfloat rgba[4 * MAX_WIDTH];
+ GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
+ height, format, type, row, 0);
+
+ if (ST_DEBUG & DEBUG_FALLBACK)
+ debug_printf("%s: fallback format translation\n", __FUNCTION__);
+
+ /* get float[4] rgba row from surface */
+ pipe_get_tile_rgba_format(pipe, tex_xfer, 0, row, width, 1,
+ format, rgba);
+
+ _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format,
+ type, dest, &ctx->Pack, transferOps);
+ }
+ }
+
+ _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
+
+ pipe->transfer_destroy(pipe, tex_xfer);
+
+ /* destroy the temp / dest surface */
+ util_destroy_rgba_surface(dst_texture, dst_surface);
+}
+
+
+
+/**
+ * Need to map texture image into memory before copying image data,
+ * then unmap it.
+ */
+static void
+st_get_tex_image(struct gl_context * ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid * pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage, GLboolean compressed_dst)
+{
+ struct st_context *st = st_context(ctx);
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ const GLuint dstImageStride =
+ _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height,
+ format, type);
+ GLuint depth, i;
+ GLubyte *dest;
+
+ if (stImage->pt &&
+ util_format_is_s3tc(stImage->pt->format) &&
+ !compressed_dst) {
+ /* Need to decompress the texture.
+ * We'll do this by rendering a textured quad.
+ * Note that we only expect RGBA formats (no Z/depth formats).
+ */
+ decompress_with_blit(ctx, target, level, format, type, pixels,
+ texObj, texImage);
+ return;
+ }
+
+ /* Map */
+ if (stImage->pt) {
+ /* Image is stored in hardware format in a buffer managed by the
+ * kernel. Need to explicitly map and unmap it.
+ */
+ texImage->Data = st_texture_image_map(st, stImage, 0,
+ PIPE_TRANSFER_READ, 0, 0,
+ stImage->base.Width,
+ stImage->base.Height);
+ /* compute stride in texels from stride in bytes */
+ texImage->RowStride = stImage->transfer->stride
+ * util_format_get_blockwidth(stImage->pt->format)
+ / util_format_get_blocksize(stImage->pt->format);
+ }
+ else {
+ /* Otherwise, the image should actually be stored in
+ * texImage->Data. This is pretty confusing for
+ * everybody, I'd much prefer to separate the two functions of
+ * texImage->Data - storage for texture images in main memory
+ * and access (ie mappings) of images. In other words, we'd
+ * create a new texImage->Map field and leave Data simply for
+ * storage.
+ */
+ assert(texImage->Data);
+ }
+
+ depth = texImage->Depth;
+ texImage->Depth = 1;
+
+ dest = (GLubyte *) pixels;
+
+ _mesa_set_fetch_functions(texImage, get_texture_dims(target));
+
+ for (i = 0; i < depth; i++) {
+ if (compressed_dst) {
+ _mesa_get_compressed_teximage(ctx, target, level, dest,
+ texObj, texImage);
+ }
+ else {
+ _mesa_get_teximage(ctx, target, level, format, type, dest,
+ texObj, texImage);
+ }
+
+ if (stImage->pt && i + 1 < depth) {
+ /* unmap this slice */
+ st_texture_image_unmap(st, stImage);
+ /* map next slice of 3D texture */
+ texImage->Data = st_texture_image_map(st, stImage, i + 1,
+ PIPE_TRANSFER_READ, 0, 0,
+ stImage->base.Width,
+ stImage->base.Height);
+ dest += dstImageStride;
+ }
+ }
+
+ texImage->Depth = depth;
+
+ /* Unmap */
+ if (stImage->pt) {
+ st_texture_image_unmap(st, stImage);
+ texImage->Data = NULL;
+ }
+}
+
+
+static void
+st_GetTexImage(struct gl_context * ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid * pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage,
+ GL_FALSE);
+}
+
+
+static void
+st_GetCompressedTexImage(struct gl_context *ctx, GLenum target, GLint level,
+ GLvoid *pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage,
+ GL_TRUE);
+}
+
+
+
+static void
+st_TexSubimage(struct gl_context *ctx, GLint dims, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_screen *screen = st->pipe->screen;
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ GLuint dstRowStride;
+ const GLuint srcImageStride =
+ _mesa_image_image_stride(packing, width, height, format, type);
+ GLint i;
+ const GLubyte *src;
+ /* init to silence warning only: */
+ enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE;
+
+ DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__,
+ _mesa_lookup_enum_by_nr(target),
+ level, xoffset, yoffset, width, height);
+
+ pixels =
+ _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format,
+ type, pixels, packing, "glTexSubImage2D");
+ if (!pixels)
+ return;
+
+ /* See if we can do texture compression with a blit/render.
+ */
+ if (!ctx->Mesa_DXTn &&
+ _mesa_is_format_compressed(texImage->TexFormat) &&
+ screen->is_format_supported(screen,
+ stImage->pt->format,
+ stImage->pt->target, 0,
+ PIPE_BIND_RENDER_TARGET, 0)) {
+ if (compress_with_blit(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels, packing, texImage)) {
+ goto done;
+ }
+ }
+
+ /* Map buffer if necessary. Need to lock to prevent other contexts
+ * from uploading the buffer under us.
+ */
+ if (stImage->pt) {
+ if (format == GL_DEPTH_COMPONENT &&
+ util_format_is_depth_and_stencil(stImage->pt->format))
+ transfer_usage = PIPE_TRANSFER_READ_WRITE;
+ else
+ transfer_usage = PIPE_TRANSFER_WRITE;
+
+ texImage->Data = st_texture_image_map(st, stImage, zoffset,
+ transfer_usage,
+ xoffset, yoffset,
+ width, height);
+ }
+
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
+ goto done;
+ }
+
+ src = (const GLubyte *) pixels;
+ dstRowStride = stImage->transfer->stride;
+
+ for (i = 0; i < depth; i++) {
+ if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0,
+ dstRowStride,
+ texImage->ImageOffsets,
+ width, height, 1,
+ format, type, src, packing)) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
+ }
+
+ if (stImage->pt && i + 1 < depth) {
+ /* unmap this slice */
+ st_texture_image_unmap(st, stImage);
+ /* map next slice of 3D texture */
+ texImage->Data = st_texture_image_map(st, stImage,
+ zoffset + i + 1,
+ transfer_usage,
+ xoffset, yoffset,
+ width, height);
+ src += srcImageStride;
+ }
+ }
+
+done:
+ _mesa_unmap_teximage_pbo(ctx, packing);
+
+ if (stImage->pt && texImage->Data) {
+ st_texture_image_unmap(st, stImage);
+ texImage->Data = NULL;
+ }
+}
+
+
+
+static void
+st_TexSubImage3D(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
+ width, height, depth, format, type,
+ pixels, packing, texObj, texImage);
+}
+
+
+static void
+st_TexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type, const GLvoid * pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0,
+ width, height, 1, format, type,
+ pixels, packing, texObj, texImage);
+}
+
+
+static void
+st_TexSubImage1D(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLsizei width, GLenum format, GLenum type,
+ const GLvoid * pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1,
+ format, type, pixels, packing, texObj, texImage);
+}
+
+
+static void
+st_CompressedTexSubImage1D(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ assert(0);
+}
+
+
+static void
+st_CompressedTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLint height,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ struct st_context *st = st_context(ctx);
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ int srcBlockStride;
+ int dstBlockStride;
+ int y;
+ enum pipe_format pformat;
+
+ if (stImage->pt) {
+ pformat = stImage->pt->format;
+
+ texImage->Data = st_texture_image_map(st, stImage, 0,
+ PIPE_TRANSFER_WRITE,
+ xoffset, yoffset,
+ width, height);
+
+ srcBlockStride = util_format_get_stride(pformat, width);
+ dstBlockStride = stImage->transfer->stride;
+ } else {
+ assert(stImage->pt);
+ /* TODO find good values for block and strides */
+ /* TODO also adjust texImage->data for yoffset/xoffset */
+ return;
+ }
+
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage");
+ return;
+ }
+
+ assert(xoffset % util_format_get_blockwidth(pformat) == 0);
+ assert(yoffset % util_format_get_blockheight(pformat) == 0);
+
+ for (y = 0; y < height; y += util_format_get_blockheight(pformat)) {
+ /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
+ const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y);
+ char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y);
+ memcpy(dst, src, util_format_get_stride(pformat, width));
+ }
+
+ if (stImage->pt) {
+ st_texture_image_unmap(st, stImage);
+ texImage->Data = NULL;
+ }
+}
+
+
+static void
+st_CompressedTexSubImage3D(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLint height, GLint depth,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ assert(0);
+}
+
+
+
+/**
+ * Do a CopyTexSubImage operation using a read transfer from the source,
+ * a write transfer to the destination and get_tile()/put_tile() to access
+ * the pixels/texels.
+ *
+ * Note: srcY=0=TOP of renderbuffer
+ */
+static void
+fallback_copy_texsubimage(struct gl_context *ctx, GLenum target, GLint level,
+ struct st_renderbuffer *strb,
+ struct st_texture_image *stImage,
+ GLenum baseFormat,
+ GLint destX, GLint destY, GLint destZ,
+ GLint srcX, GLint srcY,
+ GLsizei width, GLsizei height)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_transfer *src_trans;
+ GLvoid *texDest;
+ enum pipe_transfer_usage transfer_usage;
+
+ if (ST_DEBUG & DEBUG_FALLBACK)
+ debug_printf("%s: fallback processing\n", __FUNCTION__);
+
+ assert(width <= MAX_WIDTH);
+
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ srcY = strb->Base.Height - srcY - height;
+ }
+
+ src_trans = pipe_get_transfer(st_context(ctx)->pipe,
+ strb->texture,
+ 0, 0,
+ PIPE_TRANSFER_READ,
+ srcX, srcY,
+ width, height);
+
+ if ((baseFormat == GL_DEPTH_COMPONENT ||
+ baseFormat == GL_DEPTH_STENCIL) &&
+ util_format_is_depth_and_stencil(stImage->pt->format))
+ transfer_usage = PIPE_TRANSFER_READ_WRITE;
+ else
+ transfer_usage = PIPE_TRANSFER_WRITE;
+
+ /* XXX this used to ignore destZ param */
+ texDest = st_texture_image_map(st, stImage, destZ, transfer_usage,
+ destX, destY, width, height);
+
+ if (baseFormat == GL_DEPTH_COMPONENT ||
+ baseFormat == GL_DEPTH_STENCIL) {
+ const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F ||
+ ctx->Pixel.DepthBias != 0.0F);
+ GLint row, yStep;
+
+ /* determine bottom-to-top vs. top-to-bottom order for src buffer */
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ srcY = height - 1;
+ yStep = -1;
+ }
+ else {
+ srcY = 0;
+ yStep = 1;
+ }
+
+ /* To avoid a large temp memory allocation, do copy row by row */
+ for (row = 0; row < height; row++, srcY += yStep) {
+ uint data[MAX_WIDTH];
+ pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data);
+ if (scaleOrBias) {
+ _mesa_scale_and_bias_depth_uint(ctx, width, data);
+ }
+ pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data);
+ }
+ }
+ else {
+ /* RGBA format */
+ GLfloat *tempSrc =
+ (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
+
+ if (tempSrc && texDest) {
+ const GLint dims = 2;
+ const GLint dstRowStride = stImage->transfer->stride;
+ struct gl_texture_image *texImage = &stImage->base;
+ struct gl_pixelstore_attrib unpack = ctx->DefaultPacking;
+
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ unpack.Invert = GL_TRUE;
+ }
+
+ /* get float/RGBA image from framebuffer */
+ /* XXX this usually involves a lot of int/float conversion.
+ * try to avoid that someday.
+ */
+ pipe_get_tile_rgba_format(pipe, src_trans, 0, 0, width, height,
+ util_format_linear(strb->texture->format),
+ tempSrc);
+
+ /* Store into texture memory.
+ * Note that this does some special things such as pixel transfer
+ * ops and format conversion. In particular, if the dest tex format
+ * is actually RGBA but the user created the texture as GL_RGB we
+ * need to fill-in/override the alpha channel with 1.0.
+ */
+ _mesa_texstore(ctx, dims,
+ texImage->_BaseFormat,
+ texImage->TexFormat,
+ texDest,
+ 0, 0, 0,
+ dstRowStride,
+ texImage->ImageOffsets,
+ width, height, 1,
+ GL_RGBA, GL_FLOAT, tempSrc, /* src */
+ &unpack);
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
+ }
+
+ if (tempSrc)
+ free(tempSrc);
+ }
+
+ st_texture_image_unmap(st, stImage);
+ pipe->transfer_destroy(pipe, src_trans);
+}
+
+
+
+/**
+ * If the format of the src renderbuffer and the format of the dest
+ * texture are compatible (in terms of blitting), return a TGSI writemask
+ * to be used during the blit.
+ * If the src/dest are incompatible, return 0.
+ */
+static unsigned
+compatible_src_dst_formats(struct gl_context *ctx,
+ const struct gl_renderbuffer *src,
+ const struct gl_texture_image *dst)
+{
+ /* Get logical base formats for the src and dest.
+ * That is, use the user-requested formats and not the actual, device-
+ * chosen formats.
+ * For example, the user may have requested an A8 texture but the
+ * driver may actually be using an RGBA texture format. When we
+ * copy/blit to that texture, we only want to copy the Alpha channel
+ * and not the RGB channels.
+ *
+ * Similarly, when the src FBO was created an RGB format may have been
+ * requested but the driver actually chose an RGBA format. In that case,
+ * we don't want to copy the undefined Alpha channel to the dest texture
+ * (it should be 1.0).
+ */
+ const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat);
+ const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat);
+
+ /**
+ * XXX when we have red-only and red/green renderbuffers we'll need
+ * to add more cases here (or implement a general-purpose routine that
+ * queries the existance of the R,G,B,A channels in the src and dest).
+ */
+ if (srcFormat == dstFormat) {
+ /* This is the same as matching_base_formats, which should
+ * always pass, as it did previously.
+ */
+ return TGSI_WRITEMASK_XYZW;
+ }
+ else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) {
+ /* Make sure that A in the dest is 1. The actual src format
+ * may be RGBA and have undefined A values.
+ */
+ return TGSI_WRITEMASK_XYZ;
+ }
+ else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) {
+ /* Make sure that A in the dest is 1. The actual dst format
+ * may be RGBA and will need A=1 to provide proper alpha values
+ * when sampled later.
+ */
+ return TGSI_WRITEMASK_XYZ;
+ }
+ else {
+ if (ST_DEBUG & DEBUG_FALLBACK)
+ debug_printf("%s failed for src %s, dst %s\n",
+ __FUNCTION__,
+ _mesa_lookup_enum_by_nr(srcFormat),
+ _mesa_lookup_enum_by_nr(dstFormat));
+
+ /* Otherwise fail.
+ */
+ return 0;
+ }
+}
+
+
+
+/**
+ * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
+ * Note that the region to copy has already been clipped so we know we
+ * won't read from outside the source renderbuffer's bounds.
+ *
+ * Note: srcY=0=Bottom of renderbuffer (GL convention)
+ */
+static void
+st_copy_texsubimage(struct gl_context *ctx,
+ GLenum target, GLint level,
+ GLint destX, GLint destY, GLint destZ,
+ GLint srcX, GLint srcY,
+ GLsizei width, GLsizei height)
+{
+ struct gl_texture_unit *texUnit =
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj =
+ _mesa_select_tex_object(ctx, texUnit, target);
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ const GLenum texBaseFormat = texImage->_BaseFormat;
+ struct gl_framebuffer *fb = ctx->ReadBuffer;
+ struct st_renderbuffer *strb;
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ enum pipe_format dest_format, src_format;
+ GLboolean use_fallback = GL_TRUE;
+ GLboolean matching_base_formats;
+ GLuint format_writemask, sample_count;
+ struct pipe_surface *dest_surface = NULL;
+ GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP);
+
+ /* make sure finalize_textures has been called?
+ */
+ if (0) st_validate_state(st);
+
+ /* determine if copying depth or color data */
+ if (texBaseFormat == GL_DEPTH_COMPONENT ||
+ texBaseFormat == GL_DEPTH_STENCIL) {
+ strb = st_renderbuffer(fb->_DepthBuffer);
+ if (strb->Base.Wrapped) {
+ strb = st_renderbuffer(strb->Base.Wrapped);
+ }
+ }
+ else {
+ /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
+ strb = st_renderbuffer(fb->_ColorReadBuffer);
+ }
+
+ if (!strb || !strb->surface || !stImage->pt) {
+ debug_printf("%s: null strb or stImage\n", __FUNCTION__);
+ return;
+ }
+
+ sample_count = strb->surface->texture->nr_samples;
+ /* I believe this would be legal, presumably would need to do a resolve
+ for color, and for depth/stencil spec says to just use one of the
+ depth/stencil samples per pixel? Need some transfer clarifications. */
+ assert(sample_count < 2);
+
+ if (srcX < 0) {
+ width -= -srcX;
+ destX += -srcX;
+ srcX = 0;
+ }
+
+ if (srcY < 0) {
+ height -= -srcY;
+ destY += -srcY;
+ srcY = 0;
+ }
+
+ if (destX < 0) {
+ width -= -destX;
+ srcX += -destX;
+ destX = 0;
+ }
+
+ if (destY < 0) {
+ height -= -destY;
+ srcY += -destY;
+ destY = 0;
+ }
+
+ if (width < 0 || height < 0)
+ return;
+
+
+ assert(strb);
+ assert(strb->surface);
+ assert(stImage->pt);
+
+ src_format = strb->surface->format;
+ dest_format = stImage->pt->format;
+
+ /*
+ * Determine if the src framebuffer and dest texture have the same
+ * base format. We need this to detect a case such as the framebuffer
+ * being GL_RGBA but the texture being GL_RGB. If the actual hardware
+ * texture format stores RGBA we need to set A=1 (overriding the
+ * framebuffer's alpha values). We can't do that with the blit or
+ * textured-quad paths.
+ */
+ matching_base_formats =
+ (_mesa_get_format_base_format(strb->Base.Format) ==
+ _mesa_get_format_base_format(texImage->TexFormat));
+ format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage);
+
+ if (ctx->_ImageTransferState == 0x0) {
+
+ if (matching_base_formats &&
+ src_format == dest_format &&
+ !do_flip)
+ {
+ /* use surface_copy() / blit */
+ struct pipe_box src_box;
+ u_box_2d_zslice(srcX, srcY, strb->surface->u.tex.first_layer,
+ width, height, &src_box);
+
+ /* for resource_copy_region(), y=0=top, always */
+ pipe->resource_copy_region(pipe,
+ /* dest */
+ stImage->pt,
+ stImage->level,
+ destX, destY, destZ + stImage->face,
+ /* src */
+ strb->texture,
+ strb->surface->u.tex.level,
+ &src_box);
+ use_fallback = GL_FALSE;
+ }
+ else if (format_writemask &&
+ texBaseFormat != GL_DEPTH_COMPONENT &&
+ texBaseFormat != GL_DEPTH_STENCIL &&
+ screen->is_format_supported(screen, src_format,
+ PIPE_TEXTURE_2D, sample_count,
+ PIPE_BIND_SAMPLER_VIEW,
+ 0) &&
+ screen->is_format_supported(screen, dest_format,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_RENDER_TARGET,
+ 0)) {
+ /* draw textured quad to do the copy */
+ GLint srcY0, srcY1;
+ struct pipe_surface surf_tmpl;
+ memset(&surf_tmpl, 0, sizeof(surf_tmpl));
+ surf_tmpl.format = stImage->pt->format;
+ surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
+ surf_tmpl.u.tex.level = stImage->level;
+ surf_tmpl.u.tex.first_layer = stImage->face + destZ;
+ surf_tmpl.u.tex.last_layer = stImage->face + destZ;
+
+ dest_surface = pipe->create_surface(pipe, stImage->pt,
+ &surf_tmpl);
+
+ if (do_flip) {
+ srcY1 = strb->Base.Height - srcY - height;
+ srcY0 = srcY1 + height;
+ }
+ else {
+ srcY0 = srcY;
+ srcY1 = srcY0 + height;
+ }
+
+ util_blit_pixels_writemask(st->blit,
+ strb->texture,
+ strb->surface->u.tex.level,
+ srcX, srcY0,
+ srcX + width, srcY1,
+ strb->surface->u.tex.first_layer,
+ dest_surface,
+ destX, destY,
+ destX + width, destY + height,
+ 0.0, PIPE_TEX_MIPFILTER_NEAREST,
+ format_writemask);
+ use_fallback = GL_FALSE;
+ }
+
+ if (dest_surface)
+ pipe_surface_reference(&dest_surface, NULL);
+ }
+
+ if (use_fallback) {
+ /* software fallback */
+ fallback_copy_texsubimage(ctx, target, level,
+ strb, stImage, texBaseFormat,
+ destX, destY, destZ,
+ srcX, srcY, width, height);
+ }
+}
+
+
+
+static void
+st_CopyTexImage1D(struct gl_context * ctx, GLenum target, GLint level,
+ GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLint border)
+{
+ struct gl_texture_unit *texUnit =
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj =
+ _mesa_select_tex_object(ctx, texUnit, target);
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+
+ /* Setup or redefine the texture object, texture and texture
+ * image. Don't populate yet.
+ */
+ ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
+ width, border,
+ GL_RGBA, CHAN_TYPE, NULL,
+ &ctx->DefaultPacking, texObj, texImage);
+
+ st_copy_texsubimage(ctx, target, level,
+ 0, 0, 0, /* destX,Y,Z */
+ x, y, width, 1); /* src X, Y, size */
+}
+
+
+static void
+st_CopyTexImage2D(struct gl_context * ctx, GLenum target, GLint level,
+ GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLint border)
+{
+ struct gl_texture_unit *texUnit =
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj =
+ _mesa_select_tex_object(ctx, texUnit, target);
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+
+ /* Setup or redefine the texture object, texture and texture
+ * image. Don't populate yet.
+ */
+ ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
+ width, height, border,
+ GL_RGBA, CHAN_TYPE, NULL,
+ &ctx->DefaultPacking, texObj, texImage);
+
+ st_copy_texsubimage(ctx, target, level,
+ 0, 0, 0, /* destX,Y,Z */
+ x, y, width, height); /* src X, Y, size */
+}
+
+
+static void
+st_CopyTexSubImage1D(struct gl_context * ctx, GLenum target, GLint level,
+ GLint xoffset, GLint x, GLint y, GLsizei width)
+{
+ const GLint yoffset = 0, zoffset = 0;
+ const GLsizei height = 1;
+ st_copy_texsubimage(ctx, target, level,
+ xoffset, yoffset, zoffset, /* destX,Y,Z */
+ x, y, width, height); /* src X, Y, size */
+}
+
+
+static void
+st_CopyTexSubImage2D(struct gl_context * ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ const GLint zoffset = 0;
+ st_copy_texsubimage(ctx, target, level,
+ xoffset, yoffset, zoffset, /* destX,Y,Z */
+ x, y, width, height); /* src X, Y, size */
+}
+
+
+static void
+st_CopyTexSubImage3D(struct gl_context * ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ st_copy_texsubimage(ctx, target, level,
+ xoffset, yoffset, zoffset, /* destX,Y,Z */
+ x, y, width, height); /* src X, Y, size */
+}
+
+
+/**
+ * Copy image data from stImage into the texture object 'stObj' at level
+ * 'dstLevel'.
+ */
+static void
+copy_image_data_to_texture(struct st_context *st,
+ struct st_texture_object *stObj,
+ GLuint dstLevel,
+ struct st_texture_image *stImage)
+{
+ /* debug checks */
+ {
+ const struct gl_texture_image *dstImage =
+ stObj->base.Image[stImage->face][stImage->level];
+ assert(dstImage);
+ assert(dstImage->Width == stImage->base.Width);
+ assert(dstImage->Height == stImage->base.Height);
+ assert(dstImage->Depth == stImage->base.Depth);
+ }
+
+ if (stImage->pt) {
+ /* Copy potentially with the blitter:
+ */
+ st_texture_image_copy(st->pipe,
+ stObj->pt, dstLevel, /* dest texture, level */
+ stImage->pt, stImage->level, /* src texture, level */
+ stImage->face);
+
+ pipe_resource_reference(&stImage->pt, NULL);
+ }
+ else if (stImage->base.Data) {
+ st_texture_image_data(st,
+ stObj->pt,
+ stImage->face,
+ dstLevel,
+ stImage->base.Data,
+ stImage->base.RowStride *
+ util_format_get_blocksize(stObj->pt->format),
+ stImage->base.RowStride *
+ stImage->base.Height *
+ util_format_get_blocksize(stObj->pt->format));
+ _mesa_align_free(stImage->base.Data);
+ stImage->base.Data = NULL;
+ }
+
+ pipe_resource_reference(&stImage->pt, stObj->pt);
+}
+
+
+/**
+ * Called during state validation. When this function is finished,
+ * the texture object should be ready for rendering.
+ * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
+ */
+GLboolean
+st_finalize_texture(struct gl_context *ctx,
+ struct pipe_context *pipe,
+ struct gl_texture_object *tObj)
+{
+ struct st_context *st = st_context(ctx);
+ struct st_texture_object *stObj = st_texture_object(tObj);
+ const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
+ GLuint face;
+ struct st_texture_image *firstImage;
+ enum pipe_format firstImageFormat;
+ GLuint ptWidth, ptHeight, ptDepth, ptLayers;
+
+ if (stObj->base._Complete) {
+ /* The texture is complete and we know exactly how many mipmap levels
+ * are present/needed. This is conditional because we may be called
+ * from the st_generate_mipmap() function when the texture object is
+ * incomplete. In that case, we'll have set stObj->lastLevel before
+ * we get here.
+ */
+ if (stObj->base.MinFilter == GL_LINEAR ||
+ stObj->base.MinFilter == GL_NEAREST)
+ stObj->lastLevel = stObj->base.BaseLevel;
+ else
+ stObj->lastLevel = stObj->base._MaxLevel;
+ }
+
+ firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]);
+ assert(firstImage);
+
+ /* If both firstImage and stObj point to a texture which can contain
+ * all active images, favour firstImage. Note that because of the
+ * completeness requirement, we know that the image dimensions
+ * will match.
+ */
+ if (firstImage->pt &&
+ firstImage->pt != stObj->pt &&
+ (!stObj->pt || firstImage->pt->last_level >= stObj->pt->last_level)) {
+ pipe_resource_reference(&stObj->pt, firstImage->pt);
+ pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+ }
+
+ /* Find gallium format for the Mesa texture */
+ firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
+ st_gl_texture_dims_to_pipe_dims(stObj->base.Target, stObj->width0,
+ stObj->height0, stObj->depth0,
+ &ptWidth, &ptHeight, &ptDepth, &ptLayers);
+
+ /* If we already have a gallium texture, check that it matches the texture
+ * object's format, target, size, num_levels, etc.
+ */
+ if (stObj->pt) {
+ if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) ||
+ !st_sampler_compat_formats(stObj->pt->format, firstImageFormat) ||
+ stObj->pt->last_level < stObj->lastLevel ||
+ stObj->pt->width0 != ptWidth ||
+ stObj->pt->height0 != ptHeight ||
+ stObj->pt->depth0 != ptDepth ||
+ stObj->pt->array_size != ptLayers)
+ {
+ /* The gallium texture does not match the Mesa texture so delete the
+ * gallium texture now. We'll make a new one below.
+ */
+ pipe_resource_reference(&stObj->pt, NULL);
+ pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+ st->dirty.st |= ST_NEW_FRAMEBUFFER;
+ }
+ }
+
+ /* May need to create a new gallium texture:
+ */
+ if (!stObj->pt) {
+ GLuint bindings = default_bindings(st, firstImageFormat);
+
+ stObj->pt = st_texture_create(st,
+ gl_target_to_pipe(stObj->base.Target),
+ firstImageFormat,
+ stObj->lastLevel,
+ ptWidth,
+ ptHeight,
+ ptDepth,
+ ptLayers,
+ bindings);
+
+ if (!stObj->pt) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
+ return GL_FALSE;
+ }
+ }
+
+ /* Pull in any images not in the object's texture:
+ */
+ for (face = 0; face < nr_faces; face++) {
+ GLuint level;
+ for (level = stObj->base.BaseLevel; level <= stObj->lastLevel; level++) {
+ struct st_texture_image *stImage =
+ st_texture_image(stObj->base.Image[face][level]);
+
+ /* Need to import images in main memory or held in other textures.
+ */
+ if (stImage && stObj->pt != stImage->pt) {
+ copy_image_data_to_texture(st, stObj, level, stImage);
+ }
+ }
+ }
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Returns pointer to a default/dummy texture.
+ * This is typically used when the current shader has tex/sample instructions
+ * but the user has not provided a (any) texture(s).
+ */
+struct gl_texture_object *
+st_get_default_texture(struct st_context *st)
+{
+ if (!st->default_texture) {
+ static const GLenum target = GL_TEXTURE_2D;
+ GLubyte pixels[16][16][4];
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImg;
+ GLuint i, j;
+
+ /* The ARB_fragment_program spec says (0,0,0,1) should be returned
+ * when attempting to sample incomplete textures.
+ */
+ for (i = 0; i < 16; i++) {
+ for (j = 0; j < 16; j++) {
+ pixels[i][j][0] = 0;
+ pixels[i][j][1] = 0;
+ pixels[i][j][2] = 0;
+ pixels[i][j][3] = 255;
+ }
+ }
+
+ texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target);
+
+ texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0);
+
+ _mesa_init_teximage_fields(st->ctx, target, texImg,
+ 16, 16, 1, 0, /* w, h, d, border */
+ GL_RGBA, MESA_FORMAT_RGBA8888);
+
+ st_TexImage(st->ctx, 2, target,
+ 0, GL_RGBA, /* level, intformat */
+ 16, 16, 1, 0, /* w, h, d, border */
+ GL_RGBA, GL_UNSIGNED_BYTE, pixels,
+ &st->ctx->DefaultPacking,
+ texObj, texImg,
+ 0, 0);
+
+ texObj->MinFilter = GL_NEAREST;
+ texObj->MagFilter = GL_NEAREST;
+ texObj->_Complete = GL_TRUE;
+
+ st->default_texture = texObj;
+ }
+ return st->default_texture;
+}
+
+
+void
+st_init_texture_functions(struct dd_function_table *functions)
+{
+ functions->ChooseTextureFormat = st_ChooseTextureFormat;
+ functions->TexImage1D = st_TexImage1D;
+ functions->TexImage2D = st_TexImage2D;
+ functions->TexImage3D = st_TexImage3D;
+ functions->TexSubImage1D = st_TexSubImage1D;
+ functions->TexSubImage2D = st_TexSubImage2D;
+ functions->TexSubImage3D = st_TexSubImage3D;
+ functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D;
+ functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D;
+ functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D;
+ functions->CopyTexImage1D = st_CopyTexImage1D;
+ functions->CopyTexImage2D = st_CopyTexImage2D;
+ functions->CopyTexSubImage1D = st_CopyTexSubImage1D;
+ functions->CopyTexSubImage2D = st_CopyTexSubImage2D;
+ functions->CopyTexSubImage3D = st_CopyTexSubImage3D;
+ functions->GenerateMipmap = st_generate_mipmap;
+
+ functions->GetTexImage = st_GetTexImage;
+
+ /* compressed texture functions */
+ functions->CompressedTexImage2D = st_CompressedTexImage2D;
+ functions->GetCompressedTexImage = st_GetCompressedTexImage;
+
+ functions->NewTextureObject = st_NewTextureObject;
+ functions->NewTextureImage = st_NewTextureImage;
+ functions->DeleteTexture = st_DeleteTextureObject;
+ functions->FreeTexImageData = st_FreeTextureImageData;
+
+ functions->TextureMemCpy = do_memcpy;
+
+ /* XXX Temporary until we can query pipe's texture sizes */
+ functions->TestProxyTexImage = _mesa_test_proxy_teximage;
+}
diff --git a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c index a7dfbea1a..0be66a2c2 100644 --- a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c +++ b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c @@ -352,6 +352,7 @@ st_generate_mipmap(struct gl_context *ctx, GLenum target, oldTex->width0,
oldTex->height0,
oldTex->depth0,
+ oldTex->array_size,
oldTex->bind);
/* The texture isn't in a "complete" state yet so set the expected
diff --git a/mesalib/src/mesa/state_tracker/st_texture.c b/mesalib/src/mesa/state_tracker/st_texture.c index 4d4b238ef..0d5dc8140 100644 --- a/mesalib/src/mesa/state_tracker/st_texture.c +++ b/mesalib/src/mesa/state_tracker/st_texture.c @@ -59,6 +59,7 @@ st_texture_create(struct st_context *st, GLuint width0,
GLuint height0,
GLuint depth0,
+ GLuint layers,
GLuint bind )
{
struct pipe_resource pt, *newtex;
@@ -68,6 +69,8 @@ st_texture_create(struct st_context *st, assert(width0 > 0);
assert(height0 > 0);
assert(depth0 > 0);
+ if (target == PIPE_TEXTURE_CUBE)
+ assert(layers == 6);
DBG("%s target %s format %s last_level %d\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(target),
@@ -84,7 +87,7 @@ st_texture_create(struct st_context *st, pt.width0 = width0;
pt.height0 = height0;
pt.depth0 = depth0;
- pt.array_size = (target == PIPE_TEXTURE_CUBE ? 6 : 1);
+ pt.array_size = (target == PIPE_TEXTURE_CUBE ? 6 : layers);
pt.usage = PIPE_USAGE_DEFAULT;
pt.bind = bind;
pt.flags = 0;
@@ -98,6 +101,72 @@ st_texture_create(struct st_context *st, /**
+ * In OpenGL the number of 1D array texture layers is the "height" and
+ * the number of 2D array texture layers is the "depth". In Gallium the
+ * number of layers in an array texture is a separate 'array_size' field.
+ * This function converts dimensions from the former to the later.
+ */
+void
+st_gl_texture_dims_to_pipe_dims(GLenum texture,
+ GLuint widthIn,
+ GLuint heightIn,
+ GLuint depthIn,
+ GLuint *widthOut,
+ GLuint *heightOut,
+ GLuint *depthOut,
+ GLuint *layersOut)
+{
+ switch (texture) {
+ case GL_TEXTURE_1D:
+ assert(heightIn == 1);
+ assert(depthIn == 1);
+ *widthOut = widthIn;
+ *heightOut = 1;
+ *depthOut = 1;
+ *layersOut = 1;
+ break;
+ case GL_TEXTURE_1D_ARRAY:
+ assert(depthIn == 1);
+ *widthOut = widthIn;
+ *heightOut = 1;
+ *depthOut = 1;
+ *layersOut = heightIn;
+ break;
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_RECTANGLE:
+ assert(depthIn == 1);
+ *widthOut = widthIn;
+ *heightOut = heightIn;
+ *depthOut = 1;
+ *layersOut = 1;
+ break;
+ case GL_TEXTURE_CUBE_MAP:
+ assert(depthIn == 1);
+ *widthOut = widthIn;
+ *heightOut = heightIn;
+ *depthOut = 1;
+ *layersOut = 6;
+ break;
+ case GL_TEXTURE_2D_ARRAY:
+ *widthOut = widthIn;
+ *heightOut = heightIn;
+ *depthOut = 1;
+ *layersOut = depthIn;
+ break;
+ default:
+ assert(0 && "Unexpected texture in st_gl_texture_dims_to_pipe_dims()");
+ /* fall-through */
+ case GL_TEXTURE_3D:
+ *widthOut = widthIn;
+ *heightOut = heightIn;
+ *depthOut = depthIn;
+ *layersOut = 1;
+ break;
+ }
+}
+
+
+/**
* Check if a texture image can be pulled into a unified mipmap texture.
*/
GLboolean
@@ -105,6 +174,8 @@ st_texture_match_image(const struct pipe_resource *pt, const struct gl_texture_image *image,
GLuint face, GLuint level)
{
+ GLuint ptWidth, ptHeight, ptDepth, ptLayers;
+
/* Images with borders are never pulled into mipmap textures.
*/
if (image->Border)
@@ -115,12 +186,17 @@ st_texture_match_image(const struct pipe_resource *pt, if (st_mesa_format_to_pipe_format(image->TexFormat) != pt->format)
return GL_FALSE;
+ st_gl_texture_dims_to_pipe_dims(image->TexObject->Target,
+ image->Width, image->Height, image->Depth,
+ &ptWidth, &ptHeight, &ptDepth, &ptLayers);
+
/* Test if this image's size matches what's expected in the
* established texture.
*/
- if (image->Width != u_minify(pt->width0, level) ||
- image->Height != u_minify(pt->height0, level) ||
- image->Depth != u_minify(pt->depth0, level))
+ if (ptWidth != u_minify(pt->width0, level) ||
+ ptHeight != u_minify(pt->height0, level) ||
+ ptDepth != u_minify(pt->depth0, level) ||
+ ptLayers != pt->array_size)
return GL_FALSE;
return GL_TRUE;
@@ -212,14 +288,20 @@ st_texture_image_data(struct st_context *st, GLuint src_row_stride, GLuint src_image_stride)
{
struct pipe_context *pipe = st->pipe;
- GLuint depth = u_minify(dst->depth0, level);
GLuint i;
const GLubyte *srcUB = src;
struct pipe_transfer *dst_transfer;
+ GLuint layers;
+
+ if (dst->target == PIPE_TEXTURE_1D_ARRAY ||
+ dst->target == PIPE_TEXTURE_2D_ARRAY)
+ layers = dst->array_size;
+ else
+ layers = u_minify(dst->depth0, level);
DBG("%s\n", __FUNCTION__);
- for (i = 0; i < depth; i++) {
+ for (i = 0; i < layers; i++) {
dst_transfer = pipe_get_transfer(st->pipe, dst, level, face + i,
PIPE_TRANSFER_WRITE, 0, 0,
u_minify(dst->width0, level),
diff --git a/mesalib/src/mesa/state_tracker/st_texture.h b/mesalib/src/mesa/state_tracker/st_texture.h index bca856d71..b25f16410 100644 --- a/mesalib/src/mesa/state_tracker/st_texture.h +++ b/mesalib/src/mesa/state_tracker/st_texture.h @@ -1,221 +1,235 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - -#ifndef ST_TEXTURE_H -#define ST_TEXTURE_H - - -#include "pipe/p_context.h" -#include "util/u_sampler.h" - -#include "main/mtypes.h" - - -struct pipe_resource; - - -/** - * Subclass of gl_texure_image. - */ -struct st_texture_image -{ - struct gl_texture_image base; - - /* These aren't stored in gl_texture_image - */ - GLuint level; - GLuint face; - - /* If stImage->pt != NULL, image data is stored here. - * Else if stImage->base.Data != NULL, image is stored there. - * Else there is no image data. - */ - struct pipe_resource *pt; - - struct pipe_transfer *transfer; -}; - - -/** - * Subclass of gl_texure_object. - */ -struct st_texture_object -{ - struct gl_texture_object base; /* The "parent" object */ - - /* The texture must include at levels [0..lastLevel] once validated: - */ - GLuint lastLevel; - - /** The size of the level=0 mipmap image */ - GLuint width0, height0, depth0; - - /* On validation any active images held in main memory or in other - * textures will be copied to this texture and the old storage freed. - */ - struct pipe_resource *pt; - - /* Default sampler view attached to this texture object. Created lazily - * on first binding. - */ - struct pipe_sampler_view *sampler_view; - - /* True if there is/was a surface bound to this texture object. It helps - * track whether the texture object is surface based or not. - */ - GLboolean surface_based; -}; - - -static INLINE struct st_texture_image * -st_texture_image(struct gl_texture_image *img) -{ - return (struct st_texture_image *) img; -} - -static INLINE struct st_texture_object * -st_texture_object(struct gl_texture_object *obj) -{ - return (struct st_texture_object *) obj; -} - - -static INLINE struct pipe_resource * -st_get_texobj_resource(struct gl_texture_object *texObj) -{ - struct st_texture_object *stObj = st_texture_object(texObj); - return stObj ? stObj->pt : NULL; -} - - -static INLINE struct pipe_resource * -st_get_stobj_resource(struct st_texture_object *stObj) -{ - return stObj ? stObj->pt : NULL; -} - - -static INLINE struct pipe_sampler_view * -st_create_texture_sampler_view(struct pipe_context *pipe, - struct pipe_resource *texture) -{ - struct pipe_sampler_view templ; - - u_sampler_view_default_template(&templ, texture, texture->format); - - return pipe->create_sampler_view(pipe, texture, &templ); -} - - -static INLINE struct pipe_sampler_view * -st_create_texture_sampler_view_format(struct pipe_context *pipe, - struct pipe_resource *texture, - enum pipe_format format) -{ - struct pipe_sampler_view templ; - - u_sampler_view_default_template(&templ, texture, format); - - return pipe->create_sampler_view(pipe, texture, &templ); -} - - -static INLINE struct pipe_sampler_view * -st_get_texture_sampler_view(struct st_texture_object *stObj, - struct pipe_context *pipe) -{ - if (!stObj || !stObj->pt) { - return NULL; - } - - if (!stObj->sampler_view) { - stObj->sampler_view = st_create_texture_sampler_view(pipe, stObj->pt); - } - - return stObj->sampler_view; -} - - -extern struct pipe_resource * -st_texture_create(struct st_context *st, - enum pipe_texture_target target, - enum pipe_format format, - GLuint last_level, - GLuint width0, - GLuint height0, - GLuint depth0, - GLuint tex_usage ); - - -/* Check if an image fits into an existing texture object. - */ -extern GLboolean -st_texture_match_image(const struct pipe_resource *pt, - const struct gl_texture_image *image, - GLuint face, GLuint level); - -/* Return a pointer to an image within a texture. Return image stride as - * well. - */ -extern GLubyte * -st_texture_image_map(struct st_context *st, - struct st_texture_image *stImage, - GLuint zoffset, - enum pipe_transfer_usage usage, - unsigned x, unsigned y, - unsigned w, unsigned h); - -extern void -st_texture_image_unmap(struct st_context *st, - struct st_texture_image *stImage); - - -/* Return pointers to each 2d slice within an image. Indexed by depth - * value. - */ -extern const GLuint * -st_texture_depth_offsets(struct pipe_resource *pt, GLuint level); - - -/* Upload an image into a texture - */ -extern void -st_texture_image_data(struct st_context *st, - struct pipe_resource *dst, - GLuint face, GLuint level, void *src, - GLuint src_row_pitch, GLuint src_image_pitch); - - -/* Copy an image between two textures - */ -extern void -st_texture_image_copy(struct pipe_context *pipe, - struct pipe_resource *dst, GLuint dstLevel, - struct pipe_resource *src, GLuint srcLevel, - GLuint face); - -#endif +/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef ST_TEXTURE_H
+#define ST_TEXTURE_H
+
+
+#include "pipe/p_context.h"
+#include "util/u_sampler.h"
+
+#include "main/mtypes.h"
+
+
+struct pipe_resource;
+
+
+/**
+ * Subclass of gl_texure_image.
+ */
+struct st_texture_image
+{
+ struct gl_texture_image base;
+
+ /* These aren't stored in gl_texture_image
+ */
+ GLuint level;
+ GLuint face;
+
+ /* If stImage->pt != NULL, image data is stored here.
+ * Else if stImage->base.Data != NULL, image is stored there.
+ * Else there is no image data.
+ */
+ struct pipe_resource *pt;
+
+ struct pipe_transfer *transfer;
+};
+
+
+/**
+ * Subclass of gl_texure_object.
+ */
+struct st_texture_object
+{
+ struct gl_texture_object base; /* The "parent" object */
+
+ /* The texture must include at levels [0..lastLevel] once validated:
+ */
+ GLuint lastLevel;
+
+ /** The size of the level=0 mipmap image.
+ * Note that the number of 1D array layers will be in height0 and the
+ * number of 2D array layers will be in depth0, as in GL.
+ */
+ GLuint width0, height0, depth0;
+
+ /* On validation any active images held in main memory or in other
+ * textures will be copied to this texture and the old storage freed.
+ */
+ struct pipe_resource *pt;
+
+ /* Default sampler view attached to this texture object. Created lazily
+ * on first binding.
+ */
+ struct pipe_sampler_view *sampler_view;
+
+ /* True if there is/was a surface bound to this texture object. It helps
+ * track whether the texture object is surface based or not.
+ */
+ GLboolean surface_based;
+};
+
+
+static INLINE struct st_texture_image *
+st_texture_image(struct gl_texture_image *img)
+{
+ return (struct st_texture_image *) img;
+}
+
+static INLINE struct st_texture_object *
+st_texture_object(struct gl_texture_object *obj)
+{
+ return (struct st_texture_object *) obj;
+}
+
+
+static INLINE struct pipe_resource *
+st_get_texobj_resource(struct gl_texture_object *texObj)
+{
+ struct st_texture_object *stObj = st_texture_object(texObj);
+ return stObj ? stObj->pt : NULL;
+}
+
+
+static INLINE struct pipe_resource *
+st_get_stobj_resource(struct st_texture_object *stObj)
+{
+ return stObj ? stObj->pt : NULL;
+}
+
+
+static INLINE struct pipe_sampler_view *
+st_create_texture_sampler_view(struct pipe_context *pipe,
+ struct pipe_resource *texture)
+{
+ struct pipe_sampler_view templ;
+
+ u_sampler_view_default_template(&templ, texture, texture->format);
+
+ return pipe->create_sampler_view(pipe, texture, &templ);
+}
+
+
+static INLINE struct pipe_sampler_view *
+st_create_texture_sampler_view_format(struct pipe_context *pipe,
+ struct pipe_resource *texture,
+ enum pipe_format format)
+{
+ struct pipe_sampler_view templ;
+
+ u_sampler_view_default_template(&templ, texture, format);
+
+ return pipe->create_sampler_view(pipe, texture, &templ);
+}
+
+
+static INLINE struct pipe_sampler_view *
+st_get_texture_sampler_view(struct st_texture_object *stObj,
+ struct pipe_context *pipe)
+{
+ if (!stObj || !stObj->pt) {
+ return NULL;
+ }
+
+ if (!stObj->sampler_view) {
+ stObj->sampler_view = st_create_texture_sampler_view(pipe, stObj->pt);
+ }
+
+ return stObj->sampler_view;
+}
+
+
+extern struct pipe_resource *
+st_texture_create(struct st_context *st,
+ enum pipe_texture_target target,
+ enum pipe_format format,
+ GLuint last_level,
+ GLuint width0,
+ GLuint height0,
+ GLuint depth0,
+ GLuint layers,
+ GLuint tex_usage );
+
+
+extern void
+st_gl_texture_dims_to_pipe_dims(GLenum texture,
+ GLuint widthIn,
+ GLuint heightIn,
+ GLuint depthIn,
+ GLuint *widthOut,
+ GLuint *heightOut,
+ GLuint *depthOut,
+ GLuint *layersOut);
+
+/* Check if an image fits into an existing texture object.
+ */
+extern GLboolean
+st_texture_match_image(const struct pipe_resource *pt,
+ const struct gl_texture_image *image,
+ GLuint face, GLuint level);
+
+/* Return a pointer to an image within a texture. Return image stride as
+ * well.
+ */
+extern GLubyte *
+st_texture_image_map(struct st_context *st,
+ struct st_texture_image *stImage,
+ GLuint zoffset,
+ enum pipe_transfer_usage usage,
+ unsigned x, unsigned y,
+ unsigned w, unsigned h);
+
+extern void
+st_texture_image_unmap(struct st_context *st,
+ struct st_texture_image *stImage);
+
+
+/* Return pointers to each 2d slice within an image. Indexed by depth
+ * value.
+ */
+extern const GLuint *
+st_texture_depth_offsets(struct pipe_resource *pt, GLuint level);
+
+
+/* Upload an image into a texture
+ */
+extern void
+st_texture_image_data(struct st_context *st,
+ struct pipe_resource *dst,
+ GLuint face, GLuint level, void *src,
+ GLuint src_row_pitch, GLuint src_image_pitch);
+
+
+/* Copy an image between two textures
+ */
+extern void
+st_texture_image_copy(struct pipe_context *pipe,
+ struct pipe_resource *dst, GLuint dstLevel,
+ struct pipe_resource *src, GLuint srcLevel,
+ GLuint face);
+
+#endif
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