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Diffstat (limited to 'mesalib/src/mesa/main/teximage.c')
-rw-r--r--mesalib/src/mesa/main/teximage.c7638
1 files changed, 3819 insertions, 3819 deletions
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index cb4a5b4e4..21bea6587 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -1,3819 +1,3819 @@
-/*
- * Mesa 3-D graphics library
- *
- * 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 teximage.c
- * Texture image-related functions.
- */
-
-
-#include "glheader.h"
-#include "bufferobj.h"
-#include "context.h"
-#include "enums.h"
-#include "fbobject.h"
-#include "framebuffer.h"
-#include "hash.h"
-#include "image.h"
-#include "imports.h"
-#include "macros.h"
-#include "mfeatures.h"
-#include "state.h"
-#include "texcompress.h"
-#include "texfetch.h"
-#include "teximage.h"
-#include "texstate.h"
-#include "texpal.h"
-#include "mtypes.h"
-
-
-/**
- * State changes which we care about for glCopyTex[Sub]Image() calls.
- * In particular, we care about pixel transfer state and buffer state
- * (such as glReadBuffer to make sure we read from the right renderbuffer).
- */
-#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
-
-
-
-/**
- * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
- * elsewhere.
- */
-void *
-_mesa_alloc_texmemory(GLsizei bytes)
-{
- return _mesa_align_malloc(bytes, 512);
-}
-
-
-/**
- * Free texture memory allocated with _mesa_alloc_texmemory()
- */
-void
-_mesa_free_texmemory(void *m)
-{
- _mesa_align_free(m);
-}
-
-
-/**
- * Return the simple base format for a given internal texture format.
- * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
- *
- * \param ctx GL context.
- * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
- *
- * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
- * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
- *
- * This is the format which is used during texture application (i.e. the
- * texture format and env mode determine the arithmetic used.
- *
- * XXX this could be static
- */
-GLint
-_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
-{
- switch (internalFormat) {
- case GL_ALPHA:
- case GL_ALPHA4:
- case GL_ALPHA8:
- case GL_ALPHA12:
- case GL_ALPHA16:
- return GL_ALPHA;
- case 1:
- case GL_LUMINANCE:
- case GL_LUMINANCE4:
- case GL_LUMINANCE8:
- case GL_LUMINANCE12:
- case GL_LUMINANCE16:
- return GL_LUMINANCE;
- case 2:
- 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 GL_LUMINANCE_ALPHA;
- case GL_INTENSITY:
- case GL_INTENSITY4:
- case GL_INTENSITY8:
- case GL_INTENSITY12:
- case GL_INTENSITY16:
- return GL_INTENSITY;
- case 3:
- 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:
- return GL_RGB;
- case 4:
- 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:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
-
- if (ctx->Extensions.EXT_texture_format_BGRA8888) {
- switch (internalFormat) {
- case GL_BGRA_EXT:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.ARB_depth_texture) {
- switch (internalFormat) {
- case GL_DEPTH_COMPONENT:
- case GL_DEPTH_COMPONENT16:
- case GL_DEPTH_COMPONENT24:
- case GL_DEPTH_COMPONENT32:
- return GL_DEPTH_COMPONENT;
- default:
- ; /* fallthrough */
- }
- }
-
- switch (internalFormat) {
- case GL_COMPRESSED_ALPHA:
- return GL_ALPHA;
- case GL_COMPRESSED_LUMINANCE:
- return GL_LUMINANCE;
- case GL_COMPRESSED_LUMINANCE_ALPHA:
- return GL_LUMINANCE_ALPHA;
- case GL_COMPRESSED_INTENSITY:
- return GL_INTENSITY;
- case GL_COMPRESSED_RGB:
- return GL_RGB;
- case GL_COMPRESSED_RGBA:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
-
- if (ctx->Extensions.TDFX_texture_compression_FXT1) {
- switch (internalFormat) {
- case GL_COMPRESSED_RGB_FXT1_3DFX:
- return GL_RGB;
- case GL_COMPRESSED_RGBA_FXT1_3DFX:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_texture_compression_s3tc) {
- switch (internalFormat) {
- case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- return GL_RGB;
- case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.S3_s3tc) {
- switch (internalFormat) {
- case GL_RGB_S3TC:
- case GL_RGB4_S3TC:
- return GL_RGB;
- case GL_RGBA_S3TC:
- case GL_RGBA4_S3TC:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.MESA_ycbcr_texture) {
- if (internalFormat == GL_YCBCR_MESA)
- return GL_YCBCR_MESA;
- }
-
- if (ctx->Extensions.ARB_texture_float) {
- switch (internalFormat) {
- case GL_ALPHA16F_ARB:
- case GL_ALPHA32F_ARB:
- return GL_ALPHA;
- case GL_RGBA16F_ARB:
- case GL_RGBA32F_ARB:
- return GL_RGBA;
- case GL_RGB16F_ARB:
- case GL_RGB32F_ARB:
- return GL_RGB;
- case GL_INTENSITY16F_ARB:
- case GL_INTENSITY32F_ARB:
- return GL_INTENSITY;
- case GL_LUMINANCE16F_ARB:
- case GL_LUMINANCE32F_ARB:
- return GL_LUMINANCE;
- case GL_LUMINANCE_ALPHA16F_ARB:
- case GL_LUMINANCE_ALPHA32F_ARB:
- return GL_LUMINANCE_ALPHA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.ATI_envmap_bumpmap) {
- switch (internalFormat) {
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- return GL_DUDV_ATI;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_texture_snorm) {
- switch (internalFormat) {
- case GL_RED_SNORM:
- case GL_R8_SNORM:
- case GL_R16_SNORM:
- return GL_RED;
- case GL_RG_SNORM:
- case GL_RG8_SNORM:
- case GL_RG16_SNORM:
- return GL_RG;
- case GL_RGB_SNORM:
- case GL_RGB8_SNORM:
- case GL_RGB16_SNORM:
- return GL_RGB;
- case GL_RGBA_SNORM:
- case GL_RGBA8_SNORM:
- case GL_RGBA16_SNORM:
- return GL_RGBA;
- case GL_ALPHA_SNORM:
- case GL_ALPHA8_SNORM:
- case GL_ALPHA16_SNORM:
- return GL_ALPHA;
- case GL_LUMINANCE_SNORM:
- case GL_LUMINANCE8_SNORM:
- case GL_LUMINANCE16_SNORM:
- return GL_LUMINANCE;
- case GL_LUMINANCE_ALPHA_SNORM:
- case GL_LUMINANCE8_ALPHA8_SNORM:
- case GL_LUMINANCE16_ALPHA16_SNORM:
- return GL_LUMINANCE_ALPHA;
- case GL_INTENSITY_SNORM:
- case GL_INTENSITY8_SNORM:
- case GL_INTENSITY16_SNORM:
- return GL_INTENSITY;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_packed_depth_stencil) {
- switch (internalFormat) {
- case GL_DEPTH_STENCIL_EXT:
- case GL_DEPTH24_STENCIL8_EXT:
- return GL_DEPTH_STENCIL_EXT;
- default:
- ; /* fallthrough */
- }
- }
-
-#if FEATURE_EXT_texture_sRGB
- if (ctx->Extensions.EXT_texture_sRGB) {
- switch (internalFormat) {
- case GL_SRGB_EXT:
- case GL_SRGB8_EXT:
- case GL_COMPRESSED_SRGB_EXT:
- case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
- return GL_RGB;
- case GL_SRGB_ALPHA_EXT:
- case GL_SRGB8_ALPHA8_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
- return GL_RGBA;
- case GL_SLUMINANCE_ALPHA_EXT:
- case GL_SLUMINANCE8_ALPHA8_EXT:
- case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
- return GL_LUMINANCE_ALPHA;
- case GL_SLUMINANCE_EXT:
- case GL_SLUMINANCE8_EXT:
- case GL_COMPRESSED_SLUMINANCE_EXT:
- return GL_LUMINANCE;
- default:
- ; /* fallthrough */
- }
- }
-#endif /* FEATURE_EXT_texture_sRGB */
-
- if (ctx->Extensions.EXT_texture_integer) {
- switch (internalFormat) {
- case GL_RGBA8UI_EXT:
- case GL_RGBA16UI_EXT:
- case GL_RGBA32UI_EXT:
- case GL_RGBA8I_EXT:
- case GL_RGBA16I_EXT:
- case GL_RGBA32I_EXT:
- return GL_RGBA;
- case GL_RGB8UI_EXT:
- case GL_RGB16UI_EXT:
- case GL_RGB32UI_EXT:
- case GL_RGB8I_EXT:
- case GL_RGB16I_EXT:
- case GL_RGB32I_EXT:
- return GL_RGB;
- case GL_ALPHA8UI_EXT:
- case GL_ALPHA16UI_EXT:
- case GL_ALPHA32UI_EXT:
- case GL_ALPHA8I_EXT:
- case GL_ALPHA16I_EXT:
- case GL_ALPHA32I_EXT:
- return GL_ALPHA;
- case GL_INTENSITY8UI_EXT:
- case GL_INTENSITY16UI_EXT:
- case GL_INTENSITY32UI_EXT:
- case GL_INTENSITY8I_EXT:
- case GL_INTENSITY16I_EXT:
- case GL_INTENSITY32I_EXT:
- return GL_INTENSITY;
- case GL_LUMINANCE8UI_EXT:
- case GL_LUMINANCE16UI_EXT:
- case GL_LUMINANCE32UI_EXT:
- case GL_LUMINANCE8I_EXT:
- case GL_LUMINANCE16I_EXT:
- case GL_LUMINANCE32I_EXT:
- return GL_LUMINANCE;
- case GL_LUMINANCE_ALPHA8UI_EXT:
- case GL_LUMINANCE_ALPHA16UI_EXT:
- case GL_LUMINANCE_ALPHA32UI_EXT:
- case GL_LUMINANCE_ALPHA8I_EXT:
- case GL_LUMINANCE_ALPHA16I_EXT:
- case GL_LUMINANCE_ALPHA32I_EXT:
- return GL_LUMINANCE_ALPHA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.ARB_texture_rg) {
- switch (internalFormat) {
- case GL_R16F:
- /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
- */
- if (!ctx->Extensions.ARB_half_float_pixel)
- break;
- /* FALLTHROUGH */
- case GL_R32F:
- if (!ctx->Extensions.ARB_texture_float)
- break;
- return GL_RED;
- case GL_R8I:
- case GL_R8UI:
- case GL_R16I:
- case GL_R16UI:
- case GL_R32I:
- case GL_R32UI:
- if (!ctx->Extensions.EXT_texture_integer)
- break;
- /* FALLTHROUGH */
- case GL_R8:
- case GL_R16:
- case GL_RED:
- case GL_COMPRESSED_RED:
- return GL_RED;
-
- case GL_RG16F:
- /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
- */
- if (!ctx->Extensions.ARB_half_float_pixel)
- break;
- /* FALLTHROUGH */
- case GL_RG32F:
- if (!ctx->Extensions.ARB_texture_float)
- break;
- return GL_RG;
- case GL_RG8I:
- case GL_RG8UI:
- case GL_RG16I:
- case GL_RG16UI:
- case GL_RG32I:
- case GL_RG32UI:
- if (!ctx->Extensions.EXT_texture_integer)
- break;
- /* FALLTHROUGH */
- case GL_RG:
- case GL_RG8:
- case GL_RG16:
- case GL_COMPRESSED_RG:
- return GL_RG;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_texture_shared_exponent) {
- switch (internalFormat) {
- case GL_RGB9_E5_EXT:
- return GL_RGB;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_packed_float) {
- switch (internalFormat) {
- case GL_R11F_G11F_B10F_EXT:
- return GL_RGB;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.ARB_depth_buffer_float) {
- switch (internalFormat) {
- case GL_DEPTH_COMPONENT32F:
- return GL_DEPTH_COMPONENT;
- case GL_DEPTH32F_STENCIL8:
- return GL_DEPTH_STENCIL;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.ARB_texture_compression_rgtc) {
- switch (internalFormat) {
- case GL_COMPRESSED_RED_RGTC1:
- case GL_COMPRESSED_SIGNED_RED_RGTC1:
- return GL_RED;
- case GL_COMPRESSED_RG_RGTC2:
- case GL_COMPRESSED_SIGNED_RG_RGTC2:
- return GL_RG;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_texture_compression_latc) {
- switch (internalFormat) {
- case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
- case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
- return GL_LUMINANCE;
- case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
- case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
- return GL_LUMINANCE_ALPHA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.ATI_texture_compression_3dc) {
- switch (internalFormat) {
- case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
- return GL_LUMINANCE_ALPHA;
- default:
- ; /* fallthrough */
- }
- }
-
- return -1; /* error */
-}
-
-
-/**
- * For cube map faces, return a face index in [0,5].
- * For other targets return 0;
- */
-GLuint
-_mesa_tex_target_to_face(GLenum target)
-{
- if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
- target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
- return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
- else
- return 0;
-}
-
-
-
-/**
- * Store a gl_texture_image pointer in a gl_texture_object structure
- * according to the target and level parameters.
- *
- * \param tObj texture object.
- * \param target texture target.
- * \param level image level.
- * \param texImage texture image.
- */
-void
-_mesa_set_tex_image(struct gl_texture_object *tObj,
- GLenum target, GLint level,
- struct gl_texture_image *texImage)
-{
- const GLuint face = _mesa_tex_target_to_face(target);
-
- ASSERT(tObj);
- ASSERT(texImage);
- ASSERT(target != GL_TEXTURE_RECTANGLE_NV || level == 0);
-
- tObj->Image[face][level] = texImage;
-
- /* Set the 'back' pointer */
- texImage->TexObject = tObj;
- texImage->Level = level;
- texImage->Face = face;
-}
-
-
-/**
- * Allocate a texture image structure.
- *
- * Called via ctx->Driver.NewTextureImage() unless overriden by a device
- * driver.
- *
- * \return a pointer to gl_texture_image struct with all fields initialized to
- * zero.
- */
-struct gl_texture_image *
-_mesa_new_texture_image( struct gl_context *ctx )
-{
- (void) ctx;
- return CALLOC_STRUCT(gl_texture_image);
-}
-
-
-/**
- * Free texture image data.
- * This function is a fallback called via ctx->Driver.FreeTextureImageBuffer().
- *
- * \param texImage texture image.
- *
- * Free the texture image data if it's not marked as client data.
- */
-void
-_mesa_free_texture_image_data(struct gl_context *ctx,
- struct gl_texture_image *texImage)
-{
- (void) ctx;
-
- if (texImage->Data && !texImage->IsClientData) {
- /* free the old texture data */
- _mesa_free_texmemory(texImage->Data);
- }
-
- texImage->Data = NULL;
-}
-
-
-/**
- * Free texture image.
- *
- * \param texImage texture image.
- *
- * Free the texture image structure and the associated image data.
- */
-void
-_mesa_delete_texture_image(struct gl_context *ctx,
- struct gl_texture_image *texImage)
-{
- /* Free texImage->Data and/or any other driver-specific texture
- * image storage.
- */
- ASSERT(ctx->Driver.FreeTextureImageBuffer);
- ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
-
- ASSERT(texImage->Data == NULL);
- if (texImage->ImageOffsets)
- free(texImage->ImageOffsets);
- free(texImage);
-}
-
-
-/**
- * Test if a target is a proxy target.
- *
- * \param target texture target.
- *
- * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
- */
-GLboolean
-_mesa_is_proxy_texture(GLenum target)
-{
- /* NUM_TEXTURE_TARGETS should match number of terms below,
- * except there's no proxy for GL_TEXTURE_BUFFER.
- */
- assert(NUM_TEXTURE_TARGETS == 8);
-
- return (target == GL_PROXY_TEXTURE_1D ||
- target == GL_PROXY_TEXTURE_2D ||
- target == GL_PROXY_TEXTURE_3D ||
- target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
- target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
- target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
- target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
-}
-
-
-/**
- * Return the proxy target which corresponds to the given texture target
- */
-static GLenum
-get_proxy_target(GLenum target)
-{
- switch (target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- return GL_PROXY_TEXTURE_1D;
- case GL_TEXTURE_2D:
- case GL_PROXY_TEXTURE_2D:
- return GL_PROXY_TEXTURE_2D;
- case GL_TEXTURE_3D:
- case GL_PROXY_TEXTURE_3D:
- return GL_PROXY_TEXTURE_3D;
- 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_CUBE_MAP_ARB:
- case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
- return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
- case GL_TEXTURE_RECTANGLE_NV:
- case GL_PROXY_TEXTURE_RECTANGLE_NV:
- return GL_PROXY_TEXTURE_RECTANGLE_NV;
- case GL_TEXTURE_1D_ARRAY_EXT:
- case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
- return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
- case GL_TEXTURE_2D_ARRAY_EXT:
- case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
- return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
- default:
- _mesa_problem(NULL, "unexpected target in get_proxy_target()");
- return 0;
- }
-}
-
-
-/**
- * Get the texture object that corresponds to the target of the given
- * texture unit. The target should have already been checked for validity.
- *
- * \param ctx GL context.
- * \param texUnit texture unit.
- * \param target texture target.
- *
- * \return pointer to the texture object on success, or NULL on failure.
- */
-struct gl_texture_object *
-_mesa_select_tex_object(struct gl_context *ctx,
- const struct gl_texture_unit *texUnit,
- GLenum target)
-{
- const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
- ctx->Extensions.EXT_texture_array);
-
- switch (target) {
- case GL_TEXTURE_1D:
- return texUnit->CurrentTex[TEXTURE_1D_INDEX];
- case GL_PROXY_TEXTURE_1D:
- return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
- case GL_TEXTURE_2D:
- return texUnit->CurrentTex[TEXTURE_2D_INDEX];
- case GL_PROXY_TEXTURE_2D:
- return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
- case GL_TEXTURE_3D:
- return texUnit->CurrentTex[TEXTURE_3D_INDEX];
- case GL_PROXY_TEXTURE_3D:
- return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
- 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_CUBE_MAP_ARB:
- return ctx->Extensions.ARB_texture_cube_map
- ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
- case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
- return ctx->Extensions.ARB_texture_cube_map
- ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
- case GL_TEXTURE_RECTANGLE_NV:
- return ctx->Extensions.NV_texture_rectangle
- ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
- case GL_PROXY_TEXTURE_RECTANGLE_NV:
- return ctx->Extensions.NV_texture_rectangle
- ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
- case GL_TEXTURE_1D_ARRAY_EXT:
- return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
- case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
- return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
- case GL_TEXTURE_2D_ARRAY_EXT:
- return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
- case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
- return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
- case GL_TEXTURE_BUFFER:
- return ctx->Extensions.ARB_texture_buffer_object
- ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
- default:
- _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
- return NULL;
- }
-}
-
-
-/**
- * Return pointer to texture object for given target on current texture unit.
- */
-struct gl_texture_object *
-_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
-{
- struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
- return _mesa_select_tex_object(ctx, texUnit, target);
-}
-
-
-/**
- * Get a texture image pointer from a texture object, given a texture
- * target and mipmap level. The target and level parameters should
- * have already been error-checked.
- *
- * \param ctx GL context.
- * \param texObj texture unit.
- * \param target texture target.
- * \param level image level.
- *
- * \return pointer to the texture image structure, or NULL on failure.
- */
-struct gl_texture_image *
-_mesa_select_tex_image(struct gl_context *ctx,
- const struct gl_texture_object *texObj,
- GLenum target, GLint level)
-{
- const GLuint face = _mesa_tex_target_to_face(target);
-
- ASSERT(texObj);
- ASSERT(level >= 0);
- ASSERT(level < MAX_TEXTURE_LEVELS);
-
- return texObj->Image[face][level];
-}
-
-
-/**
- * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
- * it and install it. Only return NULL if passed a bad parameter or run
- * out of memory.
- */
-struct gl_texture_image *
-_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
- GLenum target, GLint level)
-{
- struct gl_texture_image *texImage;
-
- if (!texObj)
- return NULL;
-
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
- if (!texImage) {
- texImage = ctx->Driver.NewTextureImage(ctx);
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
- return NULL;
- }
-
- _mesa_set_tex_image(texObj, target, level, texImage);
- }
-
- return texImage;
-}
-
-
-/**
- * Return pointer to the specified proxy texture image.
- * Note that proxy textures are per-context, not per-texture unit.
- * \return pointer to texture image or NULL if invalid target, invalid
- * level, or out of memory.
- */
-struct gl_texture_image *
-_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
-{
- struct gl_texture_image *texImage;
- GLuint texIndex;
-
- if (level < 0 )
- return NULL;
-
- switch (target) {
- case GL_PROXY_TEXTURE_1D:
- if (level >= ctx->Const.MaxTextureLevels)
- return NULL;
- texIndex = TEXTURE_1D_INDEX;
- break;
- case GL_PROXY_TEXTURE_2D:
- if (level >= ctx->Const.MaxTextureLevels)
- return NULL;
- texIndex = TEXTURE_2D_INDEX;
- break;
- case GL_PROXY_TEXTURE_3D:
- if (level >= ctx->Const.Max3DTextureLevels)
- return NULL;
- texIndex = TEXTURE_3D_INDEX;
- break;
- case GL_PROXY_TEXTURE_CUBE_MAP:
- if (level >= ctx->Const.MaxCubeTextureLevels)
- return NULL;
- texIndex = TEXTURE_CUBE_INDEX;
- break;
- case GL_PROXY_TEXTURE_RECTANGLE_NV:
- if (level > 0)
- return NULL;
- texIndex = TEXTURE_RECT_INDEX;
- break;
- case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
- if (level >= ctx->Const.MaxTextureLevels)
- return NULL;
- texIndex = TEXTURE_1D_ARRAY_INDEX;
- break;
- case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
- if (level >= ctx->Const.MaxTextureLevels)
- return NULL;
- texIndex = TEXTURE_2D_ARRAY_INDEX;
- break;
- default:
- return NULL;
- }
-
- texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
- if (!texImage) {
- texImage = ctx->Driver.NewTextureImage(ctx);
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
- return NULL;
- }
- ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
- /* Set the 'back' pointer */
- texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
- }
- return texImage;
-}
-
-
-/**
- * Get the maximum number of allowed mipmap levels.
- *
- * \param ctx GL context.
- * \param target texture target.
- *
- * \return the maximum number of allowed mipmap levels for the given
- * texture target, or zero if passed a bad target.
- *
- * \sa gl_constants.
- */
-GLint
-_mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
-{
- switch (target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- case GL_TEXTURE_2D:
- case GL_PROXY_TEXTURE_2D:
- return ctx->Const.MaxTextureLevels;
- case GL_TEXTURE_3D:
- case GL_PROXY_TEXTURE_3D:
- return ctx->Const.Max3DTextureLevels;
- 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_CUBE_MAP_ARB:
- case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
- return ctx->Extensions.ARB_texture_cube_map
- ? ctx->Const.MaxCubeTextureLevels : 0;
- case GL_TEXTURE_RECTANGLE_NV:
- case GL_PROXY_TEXTURE_RECTANGLE_NV:
- return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
- case GL_TEXTURE_1D_ARRAY_EXT:
- case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
- case GL_TEXTURE_2D_ARRAY_EXT:
- case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
- return (ctx->Extensions.MESA_texture_array ||
- ctx->Extensions.EXT_texture_array)
- ? ctx->Const.MaxTextureLevels : 0;
- case GL_TEXTURE_BUFFER:
- /* fall-through */
- default:
- return 0; /* bad target */
- }
-}
-
-
-/**
- * Return number of dimensions per mipmap level for the given texture target.
- */
-GLint
-_mesa_get_texture_dimensions(GLenum target)
-{
- switch (target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- return 1;
- case GL_TEXTURE_2D:
- case GL_TEXTURE_RECTANGLE:
- case GL_TEXTURE_CUBE_MAP:
- case GL_PROXY_TEXTURE_2D:
- case GL_PROXY_TEXTURE_RECTANGLE:
- case GL_PROXY_TEXTURE_CUBE_MAP:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
- case GL_TEXTURE_1D_ARRAY:
- case GL_PROXY_TEXTURE_1D_ARRAY:
- return 2;
- case GL_TEXTURE_3D:
- case GL_PROXY_TEXTURE_3D:
- case GL_TEXTURE_2D_ARRAY:
- case GL_PROXY_TEXTURE_2D_ARRAY:
- return 3;
- case GL_TEXTURE_BUFFER:
- /* fall-through */
- default:
- _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
- target);
- return 2;
- }
-}
-
-
-
-
-#if 000 /* not used anymore */
-/*
- * glTexImage[123]D can accept a NULL image pointer. In this case we
- * create a texture image with unspecified image contents per the OpenGL
- * spec.
- */
-static GLubyte *
-make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
-{
- const GLint components = _mesa_components_in_format(format);
- const GLint numPixels = width * height * depth;
- GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
-
-#ifdef DEBUG
- /*
- * Let's see if anyone finds this. If glTexImage2D() is called with
- * a NULL image pointer then load the texture image with something
- * interesting instead of leaving it indeterminate.
- */
- if (data) {
- static const char message[8][32] = {
- " X X XXXXX XXX X ",
- " XX XX X X X X X ",
- " X X X X X X X ",
- " X X XXXX XXX XXXXX ",
- " X X X X X X ",
- " X X X X X X X ",
- " X X XXXXX XXX X X ",
- " "
- };
-
- GLubyte *imgPtr = data;
- GLint h, i, j, k;
- for (h = 0; h < depth; h++) {
- for (i = 0; i < height; i++) {
- GLint srcRow = 7 - (i % 8);
- for (j = 0; j < width; j++) {
- GLint srcCol = j % 32;
- GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
- for (k = 0; k < components; k++) {
- *imgPtr++ = texel;
- }
- }
- }
- }
- }
-#endif
-
- return data;
-}
-#endif
-
-
-
-/**
- * Reset the fields of a gl_texture_image struct to zero.
- *
- * \param img texture image structure.
- *
- * This is called when a proxy texture test fails, we set all the
- * image members (except DriverData) to zero.
- * It's also used in glTexImage[123]D as a safeguard to be sure all
- * required fields get initialized properly by the Driver.TexImage[123]D
- * functions.
- */
-static void
-clear_teximage_fields(struct gl_texture_image *img)
-{
- ASSERT(img);
- img->_BaseFormat = 0;
- img->InternalFormat = 0;
- img->Border = 0;
- img->Width = 0;
- img->Height = 0;
- img->Depth = 0;
- img->RowStride = 0;
- if (img->ImageOffsets) {
- free(img->ImageOffsets);
- img->ImageOffsets = NULL;
- }
- img->Width2 = 0;
- img->Height2 = 0;
- img->Depth2 = 0;
- img->WidthLog2 = 0;
- img->HeightLog2 = 0;
- img->DepthLog2 = 0;
- img->Data = NULL;
- img->TexFormat = MESA_FORMAT_NONE;
- img->FetchTexelc = NULL;
- img->FetchTexelf = NULL;
-}
-
-
-/**
- * Initialize basic fields of the gl_texture_image struct.
- *
- * \param ctx GL context.
- * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
- * \param img texture image structure to be initialized.
- * \param width image width.
- * \param height image height.
- * \param depth image depth.
- * \param border image border.
- * \param internalFormat internal format.
- * \param format the actual hardware format (one of MESA_FORMAT_*)
- *
- * Fills in the fields of \p img with the given information.
- * Note: width, height and depth include the border.
- */
-void
-_mesa_init_teximage_fields(struct gl_context *ctx, GLenum target,
- struct gl_texture_image *img,
- GLsizei width, GLsizei height, GLsizei depth,
- GLint border, GLenum internalFormat,
- gl_format format)
-{
- GLint i, dims;
-
- ASSERT(img);
- ASSERT(width >= 0);
- ASSERT(height >= 0);
- ASSERT(depth >= 0);
-
- img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
- ASSERT(img->_BaseFormat > 0);
- img->InternalFormat = internalFormat;
- img->Border = border;
- img->Width = width;
- img->Height = height;
- img->Depth = depth;
-
- img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
- img->WidthLog2 = _mesa_logbase2(img->Width2);
-
- if (height == 1) { /* 1-D texture */
- img->Height2 = 1;
- img->HeightLog2 = 0;
- }
- else {
- img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
- img->HeightLog2 = _mesa_logbase2(img->Height2);
- }
-
- if (depth == 1) { /* 2-D texture */
- img->Depth2 = 1;
- img->DepthLog2 = 0;
- }
- else {
- img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
- img->DepthLog2 = _mesa_logbase2(img->Depth2);
- }
-
- img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
-
- if ((width == 1 || _mesa_is_pow_two(img->Width2)) &&
- (height == 1 || _mesa_is_pow_two(img->Height2)) &&
- (depth == 1 || _mesa_is_pow_two(img->Depth2)))
- img->_IsPowerOfTwo = GL_TRUE;
- else
- img->_IsPowerOfTwo = GL_FALSE;
-
- /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
- img->RowStride = width;
- /* Allocate the ImageOffsets array and initialize to typical values.
- * We allocate the array for 1D/2D textures too in order to avoid special-
- * case code in the texstore routines.
- */
- if (img->ImageOffsets)
- free(img->ImageOffsets);
- img->ImageOffsets = (GLuint *) malloc(depth * sizeof(GLuint));
- for (i = 0; i < depth; i++) {
- img->ImageOffsets[i] = i * width * height;
- }
-
- /* Compute Width/Height/DepthScale for mipmap lod computation */
- if (target == GL_TEXTURE_RECTANGLE_NV) {
- /* scale = 1.0 since texture coords directly map to texels */
- img->WidthScale = 1.0;
- img->HeightScale = 1.0;
- img->DepthScale = 1.0;
- }
- else {
- img->WidthScale = (GLfloat) img->Width;
- img->HeightScale = (GLfloat) img->Height;
- img->DepthScale = (GLfloat) img->Depth;
- }
-
- img->TexFormat = format;
-
- dims = _mesa_get_texture_dimensions(target);
-
- _mesa_set_fetch_functions(img, dims);
-}
-
-
-/**
- * Free and clear fields of the gl_texture_image struct.
- *
- * \param ctx GL context.
- * \param texImage texture image structure to be cleared.
- *
- * After the call, \p texImage will have no data associated with it. Its
- * fields are cleared so that its parent object will test incomplete.
- */
-void
-_mesa_clear_texture_image(struct gl_context *ctx,
- struct gl_texture_image *texImage)
-{
- ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
- clear_teximage_fields(texImage);
-}
-
-
-/**
- * This is the fallback for Driver.TestProxyTexImage(). Test the texture
- * level, width, height and depth against the ctx->Const limits for textures.
- *
- * A hardware driver might override this function if, for example, the
- * max 3D texture size is 512x512x64 (i.e. not a cube).
- *
- * Note that width, height, depth == 0 is not an error. However, a
- * texture with zero width/height/depth will be considered "incomplete"
- * and texturing will effectively be disabled.
- *
- * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
- * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
- * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
- * \param level as passed to glTexImage
- * \param internalFormat as passed to glTexImage
- * \param format as passed to glTexImage
- * \param type as passed to glTexImage
- * \param width as passed to glTexImage
- * \param height as passed to glTexImage
- * \param depth as passed to glTexImage
- * \param border as passed to glTexImage
- * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
- */
-GLboolean
-_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
- GLint internalFormat, GLenum format, GLenum type,
- GLint width, GLint height, GLint depth, GLint border)
-{
- GLint maxSize;
-
- (void) internalFormat;
- (void) format;
- (void) type;
-
- switch (target) {
- case GL_PROXY_TEXTURE_1D:
- maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
- if (width < 2 * border || width > 2 + maxSize)
- return GL_FALSE;
- if (level >= ctx->Const.MaxTextureLevels)
- return GL_FALSE;
- if (!ctx->Extensions.ARB_texture_non_power_of_two) {
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- }
- return GL_TRUE;
-
- case GL_PROXY_TEXTURE_2D:
- maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
- if (width < 2 * border || width > 2 + maxSize)
- return GL_FALSE;
- if (height < 2 * border || height > 2 + maxSize)
- return GL_FALSE;
- if (level >= ctx->Const.MaxTextureLevels)
- return GL_FALSE;
- if (!ctx->Extensions.ARB_texture_non_power_of_two) {
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
- return GL_FALSE;
- }
- return GL_TRUE;
-
- case GL_PROXY_TEXTURE_3D:
- maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
- if (width < 2 * border || width > 2 + maxSize)
- return GL_FALSE;
- if (height < 2 * border || height > 2 + maxSize)
- return GL_FALSE;
- if (depth < 2 * border || depth > 2 + maxSize)
- return GL_FALSE;
- if (level >= ctx->Const.Max3DTextureLevels)
- return GL_FALSE;
- if (!ctx->Extensions.ARB_texture_non_power_of_two) {
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
- return GL_FALSE;
- if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
- return GL_FALSE;
- }
- return GL_TRUE;
-
- case GL_PROXY_TEXTURE_RECTANGLE_NV:
- maxSize = ctx->Const.MaxTextureRectSize;
- if (width < 0 || width > maxSize)
- return GL_FALSE;
- if (height < 0 || height > maxSize)
- return GL_FALSE;
- if (level != 0)
- return GL_FALSE;
- return GL_TRUE;
-
- case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
- maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
- if (width < 2 * border || width > 2 + maxSize)
- return GL_FALSE;
- if (height < 2 * border || height > 2 + maxSize)
- return GL_FALSE;
- if (level >= ctx->Const.MaxCubeTextureLevels)
- return GL_FALSE;
- if (!ctx->Extensions.ARB_texture_non_power_of_two) {
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
- return GL_FALSE;
- }
- return GL_TRUE;
-
- case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
- maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
- if (width < 2 * border || width > 2 + maxSize)
- return GL_FALSE;
- if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
- return GL_FALSE;
- if (level >= ctx->Const.MaxTextureLevels)
- return GL_FALSE;
- if (!ctx->Extensions.ARB_texture_non_power_of_two) {
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- }
- return GL_TRUE;
-
- case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
- maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
- if (width < 2 * border || width > 2 + maxSize)
- return GL_FALSE;
- if (height < 2 * border || height > 2 + maxSize)
- return GL_FALSE;
- if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
- return GL_FALSE;
- if (level >= ctx->Const.MaxTextureLevels)
- return GL_FALSE;
- if (!ctx->Extensions.ARB_texture_non_power_of_two) {
- if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
- return GL_FALSE;
- if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
- return GL_FALSE;
- }
- return GL_TRUE;
-
- default:
- _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
- return GL_FALSE;
- }
-}
-
-
-/**
- * Check if the memory used by the texture would exceed the driver's limit.
- * This lets us support a max 3D texture size of 8K (for example) but
- * prevents allocating a full 8K x 8K x 8K texture.
- * XXX this could be rolled into the proxy texture size test (above) but
- * we don't have the actual texture internal format at that point.
- */
-static GLboolean
-legal_texture_size(struct gl_context *ctx, gl_format format,
- GLint width, GLint height, GLint depth)
-{
- uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
- uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
- return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
-}
-
-
-
-/**
- * Helper function to determine whether a target and specific compression
- * format are supported.
- */
-static GLboolean
-target_can_be_compressed(const struct gl_context *ctx, GLenum target,
- GLenum intFormat)
-{
- (void) intFormat; /* not used yet */
-
- switch (target) {
- case GL_TEXTURE_2D:
- case GL_PROXY_TEXTURE_2D:
- return GL_TRUE; /* true for any compressed format so far */
- case GL_PROXY_TEXTURE_CUBE_MAP:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
- return ctx->Extensions.ARB_texture_cube_map;
- case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
- case GL_TEXTURE_2D_ARRAY_EXT:
- return (ctx->Extensions.MESA_texture_array ||
- ctx->Extensions.EXT_texture_array);
- default:
- return GL_FALSE;
- }
-}
-
-
-/**
- * Check if the given texture target value is legal for a
- * glTexImage1/2/3D call.
- */
-static GLboolean
-legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
-{
- switch (dims) {
- case 1:
- switch (target) {
- case GL_TEXTURE_1D:
- case GL_PROXY_TEXTURE_1D:
- return GL_TRUE;
- default:
- return GL_FALSE;
- }
- case 2:
- switch (target) {
- case GL_TEXTURE_2D:
- case GL_PROXY_TEXTURE_2D:
- return GL_TRUE;
- case GL_PROXY_TEXTURE_CUBE_MAP:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
- return ctx->Extensions.ARB_texture_cube_map;
- case GL_TEXTURE_RECTANGLE_NV:
- case GL_PROXY_TEXTURE_RECTANGLE_NV:
- return ctx->Extensions.NV_texture_rectangle;
- case GL_TEXTURE_1D_ARRAY_EXT:
- case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
- return (ctx->Extensions.MESA_texture_array ||
- ctx->Extensions.EXT_texture_array);
- default:
- return GL_FALSE;
- }
- case 3:
- switch (target) {
- case GL_TEXTURE_3D:
- case GL_PROXY_TEXTURE_3D:
- return GL_TRUE;
- case GL_TEXTURE_2D_ARRAY_EXT:
- case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
- return (ctx->Extensions.MESA_texture_array ||
- ctx->Extensions.EXT_texture_array);
- default:
- return GL_FALSE;
- }
- default:
- _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
- return GL_FALSE;
- }
-}
-
-
-/**
- * Check if the given texture target value is legal for a
- * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
- * The difference compared to legal_teximage_target() above is that
- * proxy targets are not supported.
- */
-static GLboolean
-legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
-{
- switch (dims) {
- case 1:
- return target == GL_TEXTURE_1D;
- case 2:
- switch (target) {
- case GL_TEXTURE_2D:
- return GL_TRUE;
- case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
- case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
- case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
- return ctx->Extensions.ARB_texture_cube_map;
- case GL_TEXTURE_RECTANGLE_NV:
- return ctx->Extensions.NV_texture_rectangle;
- case GL_TEXTURE_1D_ARRAY_EXT:
- return (ctx->Extensions.MESA_texture_array ||
- ctx->Extensions.EXT_texture_array);
- default:
- return GL_FALSE;
- }
- case 3:
- switch (target) {
- case GL_TEXTURE_3D:
- return GL_TRUE;
- case GL_TEXTURE_2D_ARRAY_EXT:
- return (ctx->Extensions.MESA_texture_array ||
- ctx->Extensions.EXT_texture_array);
- default:
- return GL_FALSE;
- }
- default:
- _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
- dims);
- return GL_FALSE;
- }
-}
-
-
-/**
- * Test the glTexImage[123]D() parameters for errors.
- *
- * \param ctx GL context.
- * \param dimensions texture image dimensions (must be 1, 2 or 3).
- * \param target texture target given by the user.
- * \param level image level given by the user.
- * \param internalFormat internal format given by the user.
- * \param format pixel data format given by the user.
- * \param type pixel data type given by the user.
- * \param width image width given by the user.
- * \param height image height given by the user.
- * \param depth image depth given by the user.
- * \param border image border given by the user.
- *
- * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
- *
- * Verifies each of the parameters against the constants specified in
- * __struct gl_contextRec::Const and the supported extensions, and according
- * to the OpenGL specification.
- */
-static GLboolean
-texture_error_check( struct gl_context *ctx,
- GLuint dimensions, GLenum target,
- GLint level, GLint internalFormat,
- GLenum format, GLenum type,
- GLint width, GLint height,
- GLint depth, GLint border )
-{
- const GLenum proxyTarget = get_proxy_target(target);
- const GLboolean isProxy = target == proxyTarget;
- GLboolean sizeOK = GL_TRUE;
- GLboolean colorFormat;
-
- /* Even though there are no color-index textures, we still have to support
- * uploading color-index data and remapping it to RGB via the
- * GL_PIXEL_MAP_I_TO_[RGBA] tables.
- */
- const GLboolean indexFormat = (format == GL_COLOR_INDEX);
-
- /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
- if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(level=%d)", dimensions, level);
- }
- return GL_TRUE;
- }
-
- /* Check border */
- if (border < 0 || border > 1 ||
- ((target == GL_TEXTURE_RECTANGLE_NV ||
- target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(border=%d)", dimensions, border);
- }
- return GL_TRUE;
- }
-
- if (width < 0 || height < 0 || depth < 0) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(width, height or depth < 0)", dimensions);
- }
- return GL_TRUE;
- }
-
- /* Do this simple check before calling the TestProxyTexImage() function */
- if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
- sizeOK = (width == height);
- }
-
- /*
- * Use the proxy texture driver hook to see if the size/level/etc are
- * legal.
- */
- sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
- internalFormat, format,
- type, width, height,
- depth, border);
- if (!sizeOK) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
- dimensions, level, width, height, depth);
- }
- return GL_TRUE;
- }
-
- /* Check internalFormat */
- if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexImage%dD(internalFormat=%s)",
- dimensions, _mesa_lookup_enum_by_nr(internalFormat));
- }
- return GL_TRUE;
- }
-
- /* Check incoming image format and type */
- if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
- /* Normally, GL_INVALID_OPERATION is generated by a format/type
- * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
- * GL_EXT_texture_integer extension, some combinations should generate
- * GL_INVALID_ENUM instead (grr!).
- */
- if (!isProxy) {
- GLenum error = _mesa_is_integer_format(format)
- ? GL_INVALID_ENUM : GL_INVALID_OPERATION;
- _mesa_error(ctx, error,
- "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
- dimensions, format, type);
- }
- return GL_TRUE;
- }
-
- /* make sure internal format and format basically agree */
- colorFormat = _mesa_is_color_format(format);
- if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
- (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
- (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
- (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
- (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
- dimensions, internalFormat, format);
- return GL_TRUE;
- }
-
- /* additional checks for ycbcr textures */
- if (internalFormat == GL_YCBCR_MESA) {
- ASSERT(ctx->Extensions.MESA_ycbcr_texture);
- if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
- type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
- char message[100];
- _mesa_snprintf(message, sizeof(message),
- "glTexImage%dD(format/type YCBCR mismatch", dimensions);
- _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
- return GL_TRUE; /* error */
- }
- if (target != GL_TEXTURE_2D &&
- target != GL_PROXY_TEXTURE_2D &&
- target != GL_TEXTURE_RECTANGLE_NV &&
- target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
- return GL_TRUE;
- }
- if (border != 0) {
- if (!isProxy) {
- char message[100];
- _mesa_snprintf(message, sizeof(message),
- "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
- dimensions, border);
- _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
- }
- return GL_TRUE;
- }
- }
-
- /* additional checks for depth textures */
- if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
- /* Only 1D, 2D, rect and array textures supported, not 3D or cubes */
- if (target != GL_TEXTURE_1D &&
- target != GL_PROXY_TEXTURE_1D &&
- target != GL_TEXTURE_2D &&
- target != GL_PROXY_TEXTURE_2D &&
- target != GL_TEXTURE_1D_ARRAY &&
- target != GL_PROXY_TEXTURE_1D_ARRAY &&
- target != GL_TEXTURE_2D_ARRAY &&
- target != GL_PROXY_TEXTURE_2D_ARRAY &&
- target != GL_TEXTURE_RECTANGLE_ARB &&
- target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glTexImage(target/internalFormat)");
- return GL_TRUE;
- }
- }
-
- /* additional checks for compressed textures */
- if (_mesa_is_compressed_format(ctx, internalFormat)) {
- if (!target_can_be_compressed(ctx, target, internalFormat)) {
- if (!isProxy)
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glTexImage%dD(target)", dimensions);
- return GL_TRUE;
- }
- if (border != 0) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(border!=0)", dimensions);
- }
- return GL_TRUE;
- }
- }
-
- /* additional checks for integer textures */
- if (ctx->Extensions.EXT_texture_integer &&
- (_mesa_is_integer_format(format) !=
- _mesa_is_integer_format(internalFormat))) {
- if (!isProxy) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexImage%dD(integer/non-integer format mismatch)",
- dimensions);
- }
- return GL_TRUE;
- }
-
- /* if we get here, the parameters are OK */
- return GL_FALSE;
-}
-
-
-/**
- * Test glTexSubImage[123]D() parameters for errors.
- *
- * \param ctx GL context.
- * \param dimensions texture image dimensions (must be 1, 2 or 3).
- * \param target texture target given by the user.
- * \param level image level given by the user.
- * \param xoffset sub-image x offset given by the user.
- * \param yoffset sub-image y offset given by the user.
- * \param zoffset sub-image z offset given by the user.
- * \param format pixel data format given by the user.
- * \param type pixel data type given by the user.
- * \param width image width given by the user.
- * \param height image height given by the user.
- * \param depth image depth given by the user.
- *
- * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
- *
- * Verifies each of the parameters against the constants specified in
- * __struct gl_contextRec::Const and the supported extensions, and according
- * to the OpenGL specification.
- */
-static GLboolean
-subtexture_error_check( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint width, GLint height, GLint depth,
- GLenum format, GLenum type )
-{
- /* Basic level check */
- if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
- return GL_TRUE;
- }
-
- /* Check for negative sizes */
- if (width < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexSubImage%dD(width=%d)", dimensions, width);
- return GL_TRUE;
- }
- if (height < 0 && dimensions > 1) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexSubImage%dD(height=%d)", dimensions, height);
- return GL_TRUE;
- }
- if (depth < 0 && dimensions > 2) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTexSubImage%dD(depth=%d)", dimensions, depth);
- return GL_TRUE;
- }
-
- if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
- /* As with the glTexImage2D check above, the error code here
- * depends on texture integer.
- */
- GLenum error = _mesa_is_integer_format(format)
- ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
- _mesa_error(ctx, error,
- "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
- dimensions, format, type);
- return GL_TRUE;
- }
-
- return GL_FALSE;
-}
-
-
-/**
- * Do second part of glTexSubImage which depends on the destination texture.
- * \return GL_TRUE if error recorded, GL_FALSE otherwise
- */
-static GLboolean
-subtexture_error_check2( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint width, GLint height, GLint depth,
- GLenum format, GLenum type,
- const struct gl_texture_image *destTex )
-{
- if (!destTex) {
- /* undefined image level */
- _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
- return GL_TRUE;
- }
-
- if (xoffset < -((GLint)destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
- dimensions);
- return GL_TRUE;
- }
- if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
- dimensions);
- return GL_TRUE;
- }
- if (dimensions > 1) {
- if (yoffset < -((GLint)destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
- dimensions);
- return GL_TRUE;
- }
- if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
- dimensions);
- return GL_TRUE;
- }
- }
- if (dimensions > 2) {
- if (zoffset < -((GLint)destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
- return GL_TRUE;
- }
- if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
- return GL_TRUE;
- }
- }
-
- if (_mesa_is_format_compressed(destTex->TexFormat)) {
- GLuint bw, bh;
-
- /* do tests which depend on compression block size */
- _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh);
-
- /* offset must be multiple of block size */
- if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
- dimensions, xoffset, yoffset);
- return GL_TRUE;
- }
- /* size must be multiple of bw by bh or equal to whole texture size */
- if ((width % bw != 0) && (GLuint) width != destTex->Width) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexSubImage%dD(width = %d)", dimensions, width);
- return GL_TRUE;
- }
- if ((height % bh != 0) && (GLuint) height != destTex->Height) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glTexSubImage%dD(height = %d)", dimensions, height);
- return GL_TRUE;
- }
- }
-
- return GL_FALSE;
-}
-
-
-/**
- * Test glCopyTexImage[12]D() parameters for errors.
- *
- * \param ctx GL context.
- * \param dimensions texture image dimensions (must be 1, 2 or 3).
- * \param target texture target given by the user.
- * \param level image level given by the user.
- * \param internalFormat internal format given by the user.
- * \param width image width given by the user.
- * \param height image height given by the user.
- * \param border texture border.
- *
- * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
- *
- * Verifies each of the parameters against the constants specified in
- * __struct gl_contextRec::Const and the supported extensions, and according
- * to the OpenGL specification.
- */
-static GLboolean
-copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level, GLint internalFormat,
- GLint width, GLint height, GLint border )
-{
- const GLenum proxyTarget = get_proxy_target(target);
- const GLenum type = GL_FLOAT;
- GLboolean sizeOK;
- GLint format;
-
- /* check target */
- if (!legal_texsubimage_target(ctx, dimensions, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
- dimensions, _mesa_lookup_enum_by_nr(target));
- return GL_TRUE;
- }
-
- /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
- if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexImage%dD(level=%d)", dimensions, level);
- return GL_TRUE;
- }
-
- /* Check that the source buffer is complete */
- if (ctx->ReadBuffer->Name) {
- if (ctx->ReadBuffer->_Status == 0) {
- _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
- }
- if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
- "glCopyTexImage%dD(invalid readbuffer)", dimensions);
- return GL_TRUE;
- }
- }
-
- /* Check border */
- if (border < 0 || border > 1 ||
- ((target == GL_TEXTURE_RECTANGLE_NV ||
- target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
- return GL_TRUE;
- }
-
- format = _mesa_base_tex_format(ctx, internalFormat);
- if (format < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexImage%dD(internalFormat)", dimensions);
- return GL_TRUE;
- }
-
- if (!_mesa_source_buffer_exists(ctx, format)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexImage%dD(missing readbuffer)", dimensions);
- return GL_TRUE;
- }
-
- /* Do size, level checking */
- sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB)
- ? (width == height) : 1;
-
- sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
- internalFormat, format,
- type, width, height,
- 1, border);
-
- if (!sizeOK) {
- if (dimensions == 1) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexImage1D(width=%d)", width);
- }
- else {
- ASSERT(dimensions == 2);
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexImage2D(width=%d, height=%d)", width, height);
- }
- return GL_TRUE;
- }
-
- if (_mesa_is_compressed_format(ctx, internalFormat)) {
- if (!target_can_be_compressed(ctx, target, internalFormat)) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glCopyTexImage%dD(target)", dimensions);
- return GL_TRUE;
- }
- if (border != 0) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexImage%dD(border!=0)", dimensions);
- return GL_TRUE;
- }
- }
- else if (_mesa_is_depth_format(internalFormat)) {
- /* make sure we have depth/stencil buffers */
- if (!ctx->ReadBuffer->_DepthBuffer) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexImage%dD(no depth)", dimensions);
- return GL_TRUE;
- }
- }
- else if (_mesa_is_depthstencil_format(internalFormat)) {
- /* make sure we have depth/stencil buffers */
- if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexImage%dD(no depth/stencil buffer)", dimensions);
- return GL_TRUE;
- }
- }
-
- /* if we get here, the parameters are OK */
- return GL_FALSE;
-}
-
-
-/**
- * Test glCopyTexSubImage[12]D() parameters for errors.
- * Note that this is the first part of error checking.
- * See also copytexsubimage_error_check2() below for the second part.
- *
- * \param ctx GL context.
- * \param dimensions texture image dimensions (must be 1, 2 or 3).
- * \param target texture target given by the user.
- * \param level image level given by the user.
- *
- * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
- */
-static GLboolean
-copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level)
-{
- /* Check that the source buffer is complete */
- if (ctx->ReadBuffer->Name) {
- if (ctx->ReadBuffer->_Status == 0) {
- _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
- }
- if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
- "glCopyTexImage%dD(invalid readbuffer)", dimensions);
- return GL_TRUE;
- }
- }
-
- /* check target (proxies not allowed) */
- if (!legal_texsubimage_target(ctx, dimensions, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
- dimensions, _mesa_lookup_enum_by_nr(target));
- return GL_TRUE;
- }
-
- /* Check level */
- if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(level=%d)", dimensions, level);
- return GL_TRUE;
- }
-
- return GL_FALSE;
-}
-
-
-/**
- * Second part of error checking for glCopyTexSubImage[12]D().
- * \param xoffset sub-image x offset given by the user.
- * \param yoffset sub-image y offset given by the user.
- * \param zoffset sub-image z offset given by the user.
- * \param width image width given by the user.
- * \param height image height given by the user.
- */
-static GLboolean
-copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLsizei width, GLsizei height,
- const struct gl_texture_image *teximage )
-{
- /* check that dest tex image exists */
- if (!teximage) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexSubImage%dD(undefined texture level: %d)",
- dimensions, level);
- return GL_TRUE;
- }
-
- /* Check size */
- if (width < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(width=%d)", dimensions, width);
- return GL_TRUE;
- }
- if (dimensions > 1 && height < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(height=%d)", dimensions, height);
- return GL_TRUE;
- }
-
- /* check x/y offsets */
- if (xoffset < -((GLint)teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
- return GL_TRUE;
- }
- if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(xoffset+width)", dimensions);
- return GL_TRUE;
- }
- if (dimensions > 1) {
- if (yoffset < -((GLint)teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
- return GL_TRUE;
- }
- /* NOTE: we're adding the border here, not subtracting! */
- if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(yoffset+height)", dimensions);
- return GL_TRUE;
- }
- }
-
- /* check z offset */
- if (dimensions > 2) {
- if (zoffset < -((GLint)teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(zoffset)", dimensions);
- return GL_TRUE;
- }
- if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
- return GL_TRUE;
- }
- }
-
- if (_mesa_is_format_compressed(teximage->TexFormat)) {
- /* offset must be multiple of 4 */
- if ((xoffset & 3) || (yoffset & 3)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions);
- return GL_TRUE;
- }
- /* size must be multiple of 4 */
- if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(width)", dimensions);
- return GL_TRUE;
- }
- if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage%dD(height)", dimensions);
- return GL_TRUE;
- }
- }
-
- if (teximage->InternalFormat == GL_YCBCR_MESA) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
- return GL_TRUE;
- }
-
- if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
- dimensions, teximage->_BaseFormat);
- return GL_TRUE;
- }
-
- if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
- if (!ctx->ReadBuffer->_DepthBuffer) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexSubImage%dD(no depth buffer)",
- dimensions);
- return GL_TRUE;
- }
- }
- else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
- if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexSubImage%dD(no depth/stencil buffer)",
- dimensions);
- return GL_TRUE;
- }
- }
-
- /* If copying into an integer texture, the source buffer must also be
- * integer-valued.
- */
- if (_mesa_is_format_integer_color(teximage->TexFormat)) {
- struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
- if (!_mesa_is_format_integer_color(rb->Format)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyTexSubImage%dD(source buffer is not integer format)",
- dimensions);
- return GL_TRUE;
- }
- }
-
- /* if we get here, the parameters are OK */
- return GL_FALSE;
-}
-
-
-/** Callback info for walking over FBO hash table */
-struct cb_info
-{
- struct gl_context *ctx;
- struct gl_texture_object *texObj;
- GLuint level, face;
-};
-
-
-/**
- * Check render to texture callback. Called from _mesa_HashWalk().
- */
-static void
-check_rtt_cb(GLuint key, void *data, void *userData)
-{
- struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
- const struct cb_info *info = (struct cb_info *) userData;
- struct gl_context *ctx = info->ctx;
- const struct gl_texture_object *texObj = info->texObj;
- const GLuint level = info->level, face = info->face;
-
- /* If this is a user-created FBO */
- if (fb->Name) {
- GLuint i;
- /* check if any of the FBO's attachments point to 'texObj' */
- for (i = 0; i < BUFFER_COUNT; i++) {
- struct gl_renderbuffer_attachment *att = fb->Attachment + i;
- if (att->Type == GL_TEXTURE &&
- att->Texture == texObj &&
- att->TextureLevel == level &&
- att->CubeMapFace == face) {
- ASSERT(_mesa_get_attachment_teximage(att));
- /* Tell driver about the new renderbuffer texture */
- ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
- /* Mark fb status as indeterminate to force re-validation */
- fb->_Status = 0;
- }
- }
- }
-}
-
-
-/**
- * When a texture image is specified we have to check if it's bound to
- * any framebuffer objects (render to texture) in order to detect changes
- * in size or format since that effects FBO completeness.
- * Any FBOs rendering into the texture must be re-validated.
- */
-static void
-update_fbo_texture(struct gl_context *ctx, struct gl_texture_object *texObj,
- GLuint face, GLuint level)
-{
- /* Only check this texture if it's been marked as RenderToTexture */
- if (texObj->_RenderToTexture) {
- struct cb_info info;
- info.ctx = ctx;
- info.texObj = texObj;
- info.level = level;
- info.face = face;
- _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
- }
-}
-
-
-/**
- * If the texture object's GenerateMipmap flag is set and we've
- * changed the texture base level image, regenerate the rest of the
- * mipmap levels now.
- */
-static INLINE void
-check_gen_mipmap(struct gl_context *ctx, GLenum target,
- struct gl_texture_object *texObj, GLint level)
-{
- ASSERT(target != GL_TEXTURE_CUBE_MAP);
- if (texObj->GenerateMipmap &&
- level == texObj->BaseLevel &&
- level < texObj->MaxLevel) {
- ASSERT(ctx->Driver.GenerateMipmap);
- ctx->Driver.GenerateMipmap(ctx, target, texObj);
- }
-}
-
-
-/** Debug helper: override the user-requested internal format */
-static GLenum
-override_internal_format(GLenum internalFormat, GLint width, GLint height)
-{
-#if 0
- if (internalFormat == GL_RGBA16F_ARB ||
- internalFormat == GL_RGBA32F_ARB) {
- printf("Convert rgba float tex to int %d x %d\n", width, height);
- return GL_RGBA;
- }
- else if (internalFormat == GL_RGB16F_ARB ||
- internalFormat == GL_RGB32F_ARB) {
- printf("Convert rgb float tex to int %d x %d\n", width, height);
- return GL_RGB;
- }
- else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
- internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
- printf("Convert luminance float tex to int %d x %d\n", width, height);
- return GL_LUMINANCE_ALPHA;
- }
- else if (internalFormat == GL_LUMINANCE16F_ARB ||
- internalFormat == GL_LUMINANCE32F_ARB) {
- printf("Convert luminance float tex to int %d x %d\n", width, height);
- return GL_LUMINANCE;
- }
- else if (internalFormat == GL_ALPHA16F_ARB ||
- internalFormat == GL_ALPHA32F_ARB) {
- printf("Convert luminance float tex to int %d x %d\n", width, height);
- return GL_ALPHA;
- }
- /*
- else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
- internalFormat = GL_RGBA;
- }
- */
- else {
- return internalFormat;
- }
-#else
- return internalFormat;
-#endif
-}
-
-
-/**
- * Choose the actual hardware format for a texture image.
- * Try to use the same format as the previous image level when possible.
- * Otherwise, ask the driver for the best format.
- * It's important to try to choose a consistant format for all levels
- * for efficient texture memory layout/allocation. In particular, this
- * comes up during automatic mipmap generation.
- */
-gl_format
-_mesa_choose_texture_format(struct gl_context *ctx,
- struct gl_texture_object *texObj,
- GLenum target, GLint level,
- GLenum internalFormat, GLenum format, GLenum type)
-{
- gl_format f;
-
- /* see if we've already chosen a format for the previous level */
- if (level > 0) {
- struct gl_texture_image *prevImage =
- _mesa_select_tex_image(ctx, texObj, target, level - 1);
- /* See if the prev level is defined and has an internal format which
- * matches the new internal format.
- */
- if (prevImage &&
- prevImage->Width > 0 &&
- prevImage->InternalFormat == internalFormat) {
- /* use the same format */
- ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
- return prevImage->TexFormat;
- }
- }
-
- /* choose format from scratch */
- f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
- ASSERT(f != MESA_FORMAT_NONE);
- return f;
-}
-
-
-/**
- * Common code to implement all the glTexImage1D/2D/3D functions.
- */
-static void
-teximage(struct gl_context *ctx, GLuint dims,
- GLenum target, GLint level, GLint internalFormat,
- GLsizei width, GLsizei height, GLsizei depth,
- GLint border, GLenum format, GLenum type,
- const GLvoid *pixels)
-{
- GLboolean error;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
- dims,
- _mesa_lookup_enum_by_nr(target), level,
- _mesa_lookup_enum_by_nr(internalFormat),
- width, height, depth, border,
- _mesa_lookup_enum_by_nr(format),
- _mesa_lookup_enum_by_nr(type), pixels);
-
- internalFormat = override_internal_format(internalFormat, width, height);
-
- /* target error checking */
- if (!legal_teximage_target(ctx, dims, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)",
- dims, _mesa_lookup_enum_by_nr(target));
- return;
- }
-
- /* general error checking */
- error = texture_error_check(ctx, dims, target, level, internalFormat,
- format, type, width, height, depth, border);
-
- if (_mesa_is_proxy_texture(target)) {
- /* Proxy texture: just clear or set state depending on error checking */
- struct gl_texture_image *texImage =
- _mesa_get_proxy_tex_image(ctx, target, level);
-
- if (error) {
- /* when error, clear all proxy texture image parameters */
- if (texImage)
- clear_teximage_fields(texImage);
- }
- else {
- /* no error, set the tex image parameters */
- struct gl_texture_object *texObj =
- _mesa_get_current_tex_object(ctx, target);
- gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
- target, level,
- internalFormat,
- format, type);
-
- if (legal_texture_size(ctx, texFormat, width, height, depth)) {
- _mesa_init_teximage_fields(ctx, target, texImage, width, height,
- depth, border, internalFormat,
- texFormat);
- }
- else if (texImage) {
- clear_teximage_fields(texImage);
- }
- }
- }
- else {
- /* non-proxy target */
- const GLuint face = _mesa_tex_target_to_face(target);
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- if (error) {
- return; /* error was recorded */
- }
-
- if (ctx->NewState & _NEW_PIXEL)
- _mesa_update_state(ctx);
-
- texObj = _mesa_get_current_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_get_tex_image(ctx, texObj, target, level);
-
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
- }
- else {
- gl_format texFormat;
-
- ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
-
- ASSERT(texImage->Data == NULL);
- texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
- internalFormat, format,
- type);
-
- if (legal_texture_size(ctx, texFormat, width, height, depth)) {
- _mesa_init_teximage_fields(ctx, target, texImage,
- width, height, depth,
- border, internalFormat, texFormat);
-
- /* Give the texture to the driver. <pixels> may be null. */
- ASSERT(ctx->Driver.TexImage3D);
- switch (dims) {
- case 1:
- ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
- width, border, format,
- type, pixels, &ctx->Unpack, texObj,
- texImage);
- break;
- case 2:
- ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
- width, height, border, format,
- type, pixels, &ctx->Unpack, texObj,
- texImage);
- break;
- case 3:
- ctx->Driver.TexImage3D(ctx, target, level, internalFormat,
- width, height, depth, border, format,
- type, pixels, &ctx->Unpack, texObj,
- texImage);
- break;
- default:
- _mesa_problem(ctx, "invalid dims=%u in teximage()", dims);
- }
-
- check_gen_mipmap(ctx, target, texObj, level);
-
- update_fbo_texture(ctx, texObj, face, level);
-
- /* state update */
- texObj->_Complete = GL_FALSE;
- ctx->NewState |= _NEW_TEXTURE;
- }
- else {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
- }
- }
- }
- _mesa_unlock_texture(ctx, texObj);
- }
-}
-
-
-/*
- * Called from the API. Note that width includes the border.
- */
-void GLAPIENTRY
-_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
- GLsizei width, GLint border, GLenum format,
- GLenum type, const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- teximage(ctx, 1, target, level, internalFormat, width, 1, 1,
- border, format, type, pixels);
-}
-
-
-void GLAPIENTRY
-_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
- GLsizei width, GLsizei height, GLint border,
- GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- teximage(ctx, 2, target, level, internalFormat, width, height, 1,
- border, format, type, pixels);
-}
-
-
-/*
- * Called by the API or display list executor.
- * Note that width and height include the border.
- */
-void GLAPIENTRY
-_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
- GLsizei width, GLsizei height, GLsizei depth,
- GLint border, GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- teximage(ctx, 3, target, level, internalFormat, width, height, depth,
- border, format, type, pixels);
-}
-
-
-void GLAPIENTRY
-_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
- GLsizei width, GLsizei height, GLsizei depth,
- GLint border, GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
- depth, border, format, type, pixels);
-}
-
-
-#if FEATURE_OES_EGL_image
-void GLAPIENTRY
-_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
-{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (!ctx->Extensions.OES_EGL_image) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glEGLImageTargetTexture2DOES(unsupported)");
- return;
- }
-
- if (target != GL_TEXTURE_2D) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glEGLImageTargetTexture2D(target=%d)", target);
- return;
- }
-
- if (ctx->NewState & _NEW_PIXEL)
- _mesa_update_state(ctx);
-
- texObj = _mesa_get_current_tex_object(ctx, target);
- _mesa_lock_texture(ctx, texObj);
-
- texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
- } else {
- ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
-
- ASSERT(texImage->Data == NULL);
- ctx->Driver.EGLImageTargetTexture2D(ctx, target,
- texObj, texImage, image);
-
- /* state update */
- texObj->_Complete = GL_FALSE;
- ctx->NewState |= _NEW_TEXTURE;
- }
- _mesa_unlock_texture(ctx, texObj);
-
-}
-#endif
-
-
-
-/**
- * Implement all the glTexSubImage1/2/3D() functions.
- */
-static void
-texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLsizei width, GLsizei height, GLsizei depth,
- GLenum format, GLenum type, const GLvoid *pixels )
-{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
- dims,
- _mesa_lookup_enum_by_nr(target), level,
- xoffset, yoffset, zoffset, width, height, depth,
- _mesa_lookup_enum_by_nr(format),
- _mesa_lookup_enum_by_nr(type), pixels);
-
- /* check target (proxies not allowed) */
- if (!legal_texsubimage_target(ctx, dims, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
- dims, _mesa_lookup_enum_by_nr(target));
- return;
- }
-
- if (ctx->NewState & _NEW_PIXEL)
- _mesa_update_state(ctx);
-
- if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset,
- width, height, depth, format, type)) {
- return; /* error was detected */
- }
-
- texObj = _mesa_get_current_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
-
- if (subtexture_error_check2(ctx, dims, target, level,
- xoffset, yoffset, zoffset,
- width, height, depth,
- format, type, texImage)) {
- /* error was recorded */
- }
- else if (width > 0 && height > 0 && depth > 0) {
- /* If we have a border, offset=-1 is legal. Bias by border width. */
- switch (dims) {
- case 3:
- zoffset += texImage->Border;
- /* fall-through */
- case 2:
- yoffset += texImage->Border;
- /* fall-through */
- case 1:
- xoffset += texImage->Border;
- }
-
- switch (dims) {
- case 1:
- ctx->Driver.TexSubImage1D(ctx, target, level,
- xoffset, width,
- format, type, pixels,
- &ctx->Unpack, texObj, texImage );
- break;
- case 2:
- ctx->Driver.TexSubImage2D(ctx, target, level,
- xoffset, yoffset, width, height,
- format, type, pixels,
- &ctx->Unpack, texObj, texImage );
- break;
- case 3:
- ctx->Driver.TexSubImage3D(ctx, target, level,
- xoffset, yoffset, zoffset,
- width, height, depth,
- format, type, pixels,
- &ctx->Unpack, texObj, texImage );
- break;
- default:
- _mesa_problem(ctx, "unexpected dims in subteximage()");
- }
-
- check_gen_mipmap(ctx, target, texObj, level);
-
- ctx->NewState |= _NEW_TEXTURE;
- }
- }
- _mesa_unlock_texture(ctx, texObj);
-}
-
-
-void GLAPIENTRY
-_mesa_TexSubImage1D( GLenum target, GLint level,
- GLint xoffset, GLsizei width,
- GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- texsubimage(ctx, 1, target, level,
- xoffset, 0, 0,
- width, 1, 1,
- format, type, pixels);
-}
-
-
-void GLAPIENTRY
-_mesa_TexSubImage2D( GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- texsubimage(ctx, 2, target, level,
- xoffset, yoffset, 0,
- width, height, 1,
- format, type, pixels);
-}
-
-
-
-void GLAPIENTRY
-_mesa_TexSubImage3D( GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLsizei width, GLsizei height, GLsizei depth,
- GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- texsubimage(ctx, 3, target, level,
- xoffset, yoffset, zoffset,
- width, height, depth,
- format, type, pixels);
-}
-
-
-
-/**
- * Implement the glCopyTexImage1/2D() functions.
- */
-static void
-copyteximage(struct gl_context *ctx, GLuint dims,
- GLenum target, GLint level, GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
-{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
- const GLuint face = _mesa_tex_target_to_face(target);
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
- dims,
- _mesa_lookup_enum_by_nr(target), level,
- _mesa_lookup_enum_by_nr(internalFormat),
- x, y, width, height, border);
-
- if (ctx->NewState & NEW_COPY_TEX_STATE)
- _mesa_update_state(ctx);
-
- if (copytexture_error_check(ctx, dims, target, level, internalFormat,
- width, height, border))
- return;
-
- texObj = _mesa_get_current_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_get_tex_image(ctx, texObj, target, level);
-
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
- }
- else {
- /* choose actual hw format */
- gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
- target, level,
- internalFormat,
- GL_NONE, GL_NONE);
-
- if (legal_texture_size(ctx, texFormat, width, height, 1)) {
- GLint srcX = x, srcY = y, dstX = 0, dstY = 0;
-
- /* Free old texture image */
- ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
-
- _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
- border, internalFormat, texFormat);
-
- /* Allocate texture memory (no pixel data yet) */
- if (dims == 1) {
- ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
- width, border, GL_NONE, GL_NONE, NULL,
- &ctx->Unpack, texObj, texImage);
- }
- else {
- ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
- width, height, border, GL_NONE, GL_NONE,
- NULL, &ctx->Unpack, texObj, texImage);
- }
-
- if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
- &width, &height)) {
- if (dims == 1)
- ctx->Driver.CopyTexSubImage1D(ctx, target, level, dstX,
- srcX, srcY, width);
-
- else
- ctx->Driver.CopyTexSubImage2D(ctx, target, level, dstX, dstY,
- srcX, srcY, width, height);
- }
-
- check_gen_mipmap(ctx, target, texObj, level);
-
- update_fbo_texture(ctx, texObj, face, level);
-
- /* state update */
- texObj->_Complete = GL_FALSE;
- ctx->NewState |= _NEW_TEXTURE;
- }
- else {
- /* probably too large of image */
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
- }
- }
- }
- _mesa_unlock_texture(ctx, texObj);
-}
-
-
-
-void GLAPIENTRY
-_mesa_CopyTexImage1D( GLenum target, GLint level,
- GLenum internalFormat,
- GLint x, GLint y,
- GLsizei width, GLint border )
-{
- GET_CURRENT_CONTEXT(ctx);
- copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
-}
-
-
-
-void GLAPIENTRY
-_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLint border )
-{
- GET_CURRENT_CONTEXT(ctx);
- copyteximage(ctx, 2, target, level, internalFormat,
- x, y, width, height, border);
-}
-
-
-
-/**
- * Implementation for glCopyTexSubImage1/2/3D() functions.
- */
-static void
-copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint x, GLint y, GLsizei width, GLsizei height)
-{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
- dims,
- _mesa_lookup_enum_by_nr(target),
- level, xoffset, yoffset, zoffset, x, y, width, height);
-
- if (ctx->NewState & NEW_COPY_TEX_STATE)
- _mesa_update_state(ctx);
-
- if (copytexsubimage_error_check1(ctx, dims, target, level))
- return;
-
- texObj = _mesa_get_current_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
-
- if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset,
- zoffset, width, height, texImage)) {
- /* error was recored */
- }
- else {
- /* If we have a border, offset=-1 is legal. Bias by border width. */
- switch (dims) {
- case 3:
- zoffset += texImage->Border;
- /* fall-through */
- case 2:
- yoffset += texImage->Border;
- /* fall-through */
- case 1:
- xoffset += texImage->Border;
- }
-
- if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
- &width, &height)) {
- switch (dims) {
- case 1:
- ctx->Driver.CopyTexSubImage1D(ctx, target, level,
- xoffset, x, y, width);
- break;
- case 2:
- ctx->Driver.CopyTexSubImage2D(ctx, target, level,
- xoffset, yoffset,
- x, y, width, height);
- break;
- case 3:
- ctx->Driver.CopyTexSubImage3D(ctx, target, level,
- xoffset, yoffset, zoffset,
- x, y, width, height);
- break;
- default:
- _mesa_problem(ctx, "bad dims in copytexsubimage()");
- }
-
- check_gen_mipmap(ctx, target, texObj, level);
-
- ctx->NewState |= _NEW_TEXTURE;
- }
- }
- }
- _mesa_unlock_texture(ctx, texObj);
-}
-
-
-void GLAPIENTRY
-_mesa_CopyTexSubImage1D( GLenum target, GLint level,
- GLint xoffset, GLint x, GLint y, GLsizei width )
-{
- GET_CURRENT_CONTEXT(ctx);
- copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
-}
-
-
-
-void GLAPIENTRY
-_mesa_CopyTexSubImage2D( GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLint x, GLint y, GLsizei width, GLsizei height )
-{
- GET_CURRENT_CONTEXT(ctx);
- copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
- width, height);
-}
-
-
-
-void GLAPIENTRY
-_mesa_CopyTexSubImage3D( GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint x, GLint y, GLsizei width, GLsizei height )
-{
- GET_CURRENT_CONTEXT(ctx);
- copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
- x, y, width, height);
-}
-
-
-
-
-/**********************************************************************/
-/****** Compressed Textures ******/
-/**********************************************************************/
-
-
-/**
- * Return expected size of a compressed texture.
- */
-static GLuint
-compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
- GLenum glformat)
-{
- gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
- return _mesa_format_image_size(mesaFormat, width, height, depth);
-}
-
-
-/*
- * Return compressed texture block size, in pixels.
- */
-static void
-get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh)
-{
- gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
- _mesa_get_format_block_size(mesaFormat, bw, bh);
-}
-
-
-/**
- * Error checking for glCompressedTexImage[123]D().
- * \param reason returns reason for error, if any
- * \return error code or GL_NO_ERROR.
- */
-static GLenum
-compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
- GLenum target, GLint level,
- GLenum internalFormat, GLsizei width,
- GLsizei height, GLsizei depth, GLint border,
- GLsizei imageSize, char **reason)
-{
- const GLenum proxyTarget = get_proxy_target(target);
- const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
- GLint expectedSize;
-
- *reason = ""; /* no error */
-
- /* check level */
- if (level < 0 || level >= maxLevels) {
- *reason = "level";
- return GL_INVALID_VALUE;
- }
-
- if (!target_can_be_compressed(ctx, target, internalFormat)) {
- *reason = "target";
- return GL_INVALID_ENUM;
- }
-
- /* This will detect any invalid internalFormat value */
- if (!_mesa_is_compressed_format(ctx, internalFormat)) {
- *reason = "internalFormat";
- return GL_INVALID_ENUM;
- }
-
- /* This should really never fail */
- if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
- *reason = "internalFormat";
- return GL_INVALID_ENUM;
- }
-
- /* No compressed formats support borders at this time */
- if (border != 0) {
- *reason = "border != 0";
- return GL_INVALID_VALUE;
- }
-
- /* For cube map, width must equal height */
- if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
- target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height) {
- *reason = "width != height";
- return GL_INVALID_VALUE;
- }
-
- /* check image size against compression block size */
- {
- gl_format texFormat =
- ctx->Driver.ChooseTextureFormat(ctx, internalFormat,
- GL_NONE, GL_NONE);
- GLuint bw, bh;
-
- _mesa_get_format_block_size(texFormat, &bw, &bh);
- if ((width > bw && width % bw > 0) ||
- (height > bh && height % bh > 0)) {
- /*
- * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
- * generated [...] if any parameter combinations are not
- * supported by the specific compressed internal format.
- */
- *reason = "invalid width or height for compression format";
- return GL_INVALID_OPERATION;
- }
- }
-
- /* check image sizes */
- if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
- internalFormat, GL_NONE, GL_NONE,
- width, height, depth, border)) {
- /* See error comment above */
- *reason = "invalid width, height or format";
- return GL_INVALID_OPERATION;
- }
-
- /* check image size in bytes */
- expectedSize = compressed_tex_size(width, height, depth, internalFormat);
- if (expectedSize != imageSize) {
- /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
- * if <imageSize> is not consistent with the format, dimensions, and
- * contents of the specified image.
- */
- *reason = "imageSize inconsistant with width/height/format";
- return GL_INVALID_VALUE;
- }
-
- return GL_NO_ERROR;
-}
-
-
-/**
- * Error checking for glCompressedTexSubImage[123]D().
- * \warning There are some bad assumptions here about the size of compressed
- * texture tiles (multiple of 4) used to test the validity of the
- * offset and size parameters.
- * \return error code or GL_NO_ERROR.
- */
-static GLenum
-compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLsizei width, GLsizei height, GLsizei depth,
- GLenum format, GLsizei imageSize)
-{
- GLint expectedSize, maxLevels = 0, maxTextureSize;
- GLuint bw, bh;
- (void) zoffset;
-
- if (dimensions == 1) {
- /* 1D compressed textures not allowed */
- return GL_INVALID_ENUM;
- }
- else if (dimensions == 2) {
- if (target == GL_PROXY_TEXTURE_2D) {
- maxLevels = ctx->Const.MaxTextureLevels;
- }
- else if (target == GL_TEXTURE_2D) {
- maxLevels = ctx->Const.MaxTextureLevels;
- }
- else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
- if (!ctx->Extensions.ARB_texture_cube_map)
- return GL_INVALID_ENUM; /*target*/
- maxLevels = ctx->Const.MaxCubeTextureLevels;
- }
- else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
- target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
- if (!ctx->Extensions.ARB_texture_cube_map)
- return GL_INVALID_ENUM; /*target*/
- maxLevels = ctx->Const.MaxCubeTextureLevels;
- }
- else {
- return GL_INVALID_ENUM; /*target*/
- }
- }
- else if (dimensions == 3) {
- /* 3D compressed textures not allowed */
- return GL_INVALID_ENUM;
- }
-
- maxTextureSize = 1 << (maxLevels - 1);
-
- /* this will catch any invalid compressed format token */
- if (!_mesa_is_compressed_format(ctx, format))
- return GL_INVALID_ENUM;
-
- if (width < 1 || width > maxTextureSize)
- return GL_INVALID_VALUE;
-
- if ((height < 1 || height > maxTextureSize)
- && dimensions > 1)
- return GL_INVALID_VALUE;
-
- if (level < 0 || level >= maxLevels)
- return GL_INVALID_VALUE;
-
- /*
- * do checks which depend on compression block size
- */
- get_compressed_block_size(format, &bw, &bh);
-
- if ((xoffset % bw != 0) || (yoffset % bh != 0))
- return GL_INVALID_VALUE;
-
- if ((width % bw != 0) && width != 2 && width != 1)
- return GL_INVALID_VALUE;
-
- if ((height % bh != 0) && height != 2 && height != 1)
- return GL_INVALID_VALUE;
-
- expectedSize = compressed_tex_size(width, height, depth, format);
- if (expectedSize != imageSize)
- return GL_INVALID_VALUE;
-
- return GL_NO_ERROR;
-}
-
-
-/**
- * Do second part of glCompressedTexSubImage error checking.
- * \return GL_TRUE if error found, GL_FALSE otherwise.
- */
-static GLboolean
-compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims,
- GLsizei width, GLsizei height,
- GLsizei depth, GLenum format,
- struct gl_texture_image *texImage)
-{
-
- if ((GLint) format != texImage->InternalFormat) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
- return GL_TRUE;
- }
-
- if (((width == 1 || width == 2) &&
- width != (GLsizei) texImage->Width) ||
- (width > (GLsizei) texImage->Width)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCompressedTexSubImage%uD(width=%d)", dims, width);
- return GL_TRUE;
- }
-
- if (dims >= 2) {
- if (((height == 1 || height == 2) &&
- height != (GLsizei) texImage->Height) ||
- (height > (GLsizei) texImage->Height)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCompressedTexSubImage%uD(height=%d)", dims, height);
- return GL_TRUE;
- }
- }
-
- if (dims >= 3) {
- if (((depth == 1 || depth == 2) &&
- depth != (GLsizei) texImage->Depth) ||
- (depth > (GLsizei) texImage->Depth)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCompressedTexSubImage%uD(depth=%d)", dims, depth);
- return GL_TRUE;
- }
- }
-
- return GL_FALSE;
-}
-
-
-/**
- * Implementation of the glCompressedTexImage1/2/3D() functions.
- */
-static void
-compressedteximage(struct gl_context *ctx, GLuint dims,
- GLenum target, GLint level,
- GLenum internalFormat, GLsizei width,
- GLsizei height, GLsizei depth, GLint border,
- GLsizei imageSize, const GLvoid *data)
-{
- GLenum error;
- char *reason = "";
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
- _mesa_debug(ctx,
- "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
- dims,
- _mesa_lookup_enum_by_nr(target), level,
- _mesa_lookup_enum_by_nr(internalFormat),
- width, height, depth, border, imageSize, data);
-
- /* check target */
- if (!legal_teximage_target(ctx, dims, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)",
- dims, _mesa_lookup_enum_by_nr(target));
- return;
- }
-
- error = compressed_texture_error_check(ctx, dims, target, level,
- internalFormat, width, height, depth,
- border, imageSize, &reason);
-
- if (error) {
- _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason);
- return;
- }
-
-#if FEATURE_ES
- /* XXX this is kind of a hack */
- if (dims == 2) {
- switch (internalFormat) {
- case GL_PALETTE4_RGB8_OES:
- case GL_PALETTE4_RGBA8_OES:
- case GL_PALETTE4_R5_G6_B5_OES:
- case GL_PALETTE4_RGBA4_OES:
- case GL_PALETTE4_RGB5_A1_OES:
- case GL_PALETTE8_RGB8_OES:
- case GL_PALETTE8_RGBA8_OES:
- case GL_PALETTE8_R5_G6_B5_OES:
- case GL_PALETTE8_RGBA4_OES:
- case GL_PALETTE8_RGB5_A1_OES:
- _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
- width, height, imageSize, data);
- return;
- }
- }
-#endif
-
- if (_mesa_is_proxy_texture(target)) {
- /* Proxy texture: just check for errors and update proxy state */
- struct gl_texture_image *texImage;
-
- if (!error) {
- struct gl_texture_object *texObj =
- _mesa_get_current_tex_object(ctx, target);
- gl_format texFormat =
- _mesa_choose_texture_format(ctx, texObj, target, level,
- internalFormat, GL_NONE, GL_NONE);
- if (!legal_texture_size(ctx, texFormat, width, height, depth)) {
- error = GL_OUT_OF_MEMORY;
- }
- }
-
- texImage = _mesa_get_proxy_tex_image(ctx, target, level);
- if (texImage) {
- if (error) {
- /* if error, clear all proxy texture image parameters */
- clear_teximage_fields(texImage);
- }
- else {
- /* no error: store the teximage parameters */
- _mesa_init_teximage_fields(ctx, target, texImage, width, height,
- depth, border, internalFormat,
- MESA_FORMAT_NONE);
- }
- }
- }
- else {
- /* non-proxy target */
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- if (error) {
- _mesa_error(ctx, error, "glCompressedTexImage%uD", dims);
- return;
- }
-
- texObj = _mesa_get_current_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_get_tex_image(ctx, texObj, target, level);
- if (!texImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY,
- "glCompressedTexImage%uD", dims);
- }
- else {
- gl_format texFormat;
-
- ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
- ASSERT(texImage->Data == NULL);
-
- texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
- internalFormat, GL_NONE,
- GL_NONE);
-
- if (legal_texture_size(ctx, texFormat, width, height, depth)) {
- _mesa_init_teximage_fields(ctx, target, texImage,
- width, height, depth,
- border, internalFormat, texFormat);
-
- switch (dims) {
- case 1:
- ASSERT(ctx->Driver.CompressedTexImage1D);
- ctx->Driver.CompressedTexImage1D(ctx, target, level,
- internalFormat,
- width,
- border, imageSize, data,
- texObj, texImage);
- break;
- case 2:
- ASSERT(ctx->Driver.CompressedTexImage2D);
- ctx->Driver.CompressedTexImage2D(ctx, target, level,
- internalFormat,
- width, height,
- border, imageSize, data,
- texObj, texImage);
- break;
- case 3:
- ASSERT(ctx->Driver.CompressedTexImage3D);
- ctx->Driver.CompressedTexImage3D(ctx, target, level,
- internalFormat,
- width, height, depth,
- border, imageSize, data,
- texObj, texImage);
- break;
- default:
- _mesa_problem(ctx, "bad dims in compressedteximage");
- }
-
- check_gen_mipmap(ctx, target, texObj, level);
-
- /* state update */
- texObj->_Complete = GL_FALSE;
- ctx->NewState |= _NEW_TEXTURE;
- }
- else {
- _mesa_error(ctx, GL_OUT_OF_MEMORY,
- "glCompressedTexImage%uD", dims);
- }
- }
- }
- _mesa_unlock_texture(ctx, texObj);
- }
-}
-
-
-void GLAPIENTRY
-_mesa_CompressedTexImage1DARB(GLenum target, GLint level,
- GLenum internalFormat, GLsizei width,
- GLint border, GLsizei imageSize,
- const GLvoid *data)
-{
- GET_CURRENT_CONTEXT(ctx);
- compressedteximage(ctx, 1, target, level, internalFormat,
- width, 1, 1, border, imageSize, data);
-}
-
-
-void GLAPIENTRY
-_mesa_CompressedTexImage2DARB(GLenum target, GLint level,
- GLenum internalFormat, GLsizei width,
- GLsizei height, GLint border, GLsizei imageSize,
- const GLvoid *data)
-{
- GET_CURRENT_CONTEXT(ctx);
- compressedteximage(ctx, 2, target, level, internalFormat,
- width, height, 1, border, imageSize, data);
-}
-
-
-void GLAPIENTRY
-_mesa_CompressedTexImage3DARB(GLenum target, GLint level,
- GLenum internalFormat, GLsizei width,
- GLsizei height, GLsizei depth, GLint border,
- GLsizei imageSize, const GLvoid *data)
-{
- GET_CURRENT_CONTEXT(ctx);
- compressedteximage(ctx, 3, target, level, internalFormat,
- width, height, depth, border, imageSize, data);
-}
-
-
-/**
- * Common helper for glCompressedTexSubImage1/2/3D().
- */
-static void
-compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLsizei width, GLsizei height, GLsizei depth,
- GLenum format, GLsizei imageSize, const GLvoid *data)
-{
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
- GLenum error;
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- error = compressed_subtexture_error_check(ctx, dims, target, level,
- xoffset, 0, 0, /* pos */
- width, height, depth, /* size */
- format, imageSize);
- if (error) {
- _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims);
- return;
- }
-
- texObj = _mesa_get_current_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
- assert(texImage);
-
- if (compressed_subtexture_error_check2(ctx, dims, width, height, depth,
- format, texImage)) {
- /* error was recorded */
- }
- else if (width > 0 && height > 0 && depth > 0) {
- switch (dims) {
- case 1:
- if (ctx->Driver.CompressedTexSubImage1D) {
- ctx->Driver.CompressedTexSubImage1D(ctx, target, level,
- xoffset, width,
- format, imageSize, data,
- texObj, texImage);
- }
- break;
- case 2:
- if (ctx->Driver.CompressedTexSubImage2D) {
- ctx->Driver.CompressedTexSubImage2D(ctx, target, level,
- xoffset, yoffset,
- width, height,
- format, imageSize, data,
- texObj, texImage);
- }
- break;
- case 3:
- if (ctx->Driver.CompressedTexSubImage3D) {
- ctx->Driver.CompressedTexSubImage3D(ctx, target, level,
- xoffset, yoffset, zoffset,
- width, height, depth,
- format, imageSize, data,
- texObj, texImage);
- }
- break;
- default:
- ;
- }
-
- check_gen_mipmap(ctx, target, texObj, level);
-
- ctx->NewState |= _NEW_TEXTURE;
- }
- }
- _mesa_unlock_texture(ctx, texObj);
-}
-
-
-void GLAPIENTRY
-_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
- GLsizei width, GLenum format,
- GLsizei imageSize, const GLvoid *data)
-{
- compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
- format, imageSize, data);
-}
-
-
-void GLAPIENTRY
-_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
- GLint yoffset, GLsizei width, GLsizei height,
- GLenum format, GLsizei imageSize,
- const GLvoid *data)
-{
- compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
- width, height, 1, format, imageSize, data);
-}
-
-
-void GLAPIENTRY
-_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
- GLint yoffset, GLint zoffset, GLsizei width,
- GLsizei height, GLsizei depth, GLenum format,
- GLsizei imageSize, const GLvoid *data)
-{
- compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
- width, height, depth, format, imageSize, data);
-}
-
-
-/**
- * Helper for glTexBuffer(). Check if internalFormat is legal. If so,
- * return the basic data type and number of components for the format.
- * \param return GL_TRUE if internalFormat is legal, GL_FALSE otherwise
- */
-static GLboolean
-get_sized_format_info(const struct gl_context *ctx, GLenum internalFormat,
- GLenum *datatype, GLuint *components)
-{
- switch (internalFormat) {
- case GL_ALPHA8:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 1;
- break;
- case GL_ALPHA16:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 1;
- break;
- case GL_ALPHA16F_ARB:
- *datatype = GL_HALF_FLOAT;
- *components = 1;
- break;
- case GL_ALPHA32F_ARB:
- *datatype = GL_FLOAT;
- *components = 1;
- break;
- case GL_ALPHA8I_EXT:
- *datatype = GL_BYTE;
- *components = 1;
- break;
- case GL_ALPHA16I_EXT:
- *datatype = GL_SHORT;
- *components = 1;
- break;
- case GL_ALPHA32I_EXT:
- *datatype = GL_INT;
- *components = 1;
- break;
- case GL_ALPHA8UI_EXT:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 1;
- break;
- case GL_ALPHA16UI_EXT:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 1;
- break;
- case GL_ALPHA32UI_EXT:
- *datatype = GL_UNSIGNED_INT;
- *components = 1;
- break;
- case GL_LUMINANCE8:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 1;
- break;
- case GL_LUMINANCE16:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 1;
- break;
- case GL_LUMINANCE16F_ARB:
- *datatype = GL_HALF_FLOAT;
- *components = 1;
- break;
- case GL_LUMINANCE32F_ARB:
- *datatype = GL_FLOAT;
- *components = 1;
- break;
- case GL_LUMINANCE8I_EXT:
- *datatype = GL_BYTE;
- *components = 1;
- break;
- case GL_LUMINANCE16I_EXT:
- *datatype = GL_SHORT;
- *components = 1;
- break;
- case GL_LUMINANCE32I_EXT:
- *datatype = GL_INT;
- *components = 1;
- break;
- case GL_LUMINANCE8UI_EXT:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 1;
- break;
- case GL_LUMINANCE16UI_EXT:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 1;
- break;
- case GL_LUMINANCE32UI_EXT:
- *datatype = GL_UNSIGNED_INT;
- *components = 1;
- break;
- case GL_LUMINANCE8_ALPHA8:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 2;
- break;
- case GL_LUMINANCE16_ALPHA16:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 2;
- break;
- case GL_LUMINANCE_ALPHA16F_ARB:
- *datatype = GL_HALF_FLOAT;
- *components = 2;
- break;
- case GL_LUMINANCE_ALPHA32F_ARB:
- *datatype = GL_FLOAT;
- *components = 2;
- break;
- case GL_LUMINANCE_ALPHA8I_EXT:
- *datatype = GL_BYTE;
- *components = 2;
- break;
- case GL_LUMINANCE_ALPHA16I_EXT:
- *datatype = GL_SHORT;
- *components = 2;
- break;
- case GL_LUMINANCE_ALPHA32I_EXT:
- *datatype = GL_INT;
- *components = 2;
- break;
- case GL_LUMINANCE_ALPHA8UI_EXT:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 2;
- break;
- case GL_LUMINANCE_ALPHA16UI_EXT:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 2;
- break;
- case GL_LUMINANCE_ALPHA32UI_EXT:
- *datatype = GL_UNSIGNED_INT;
- *components = 2;
- break;
- case GL_INTENSITY8:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 1;
- break;
- case GL_INTENSITY16:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 1;
- break;
- case GL_INTENSITY16F_ARB:
- *datatype = GL_HALF_FLOAT;
- *components = 1;
- break;
- case GL_INTENSITY32F_ARB:
- *datatype = GL_FLOAT;
- *components = 1;
- break;
- case GL_INTENSITY8I_EXT:
- *datatype = GL_BYTE;
- *components = 1;
- break;
- case GL_INTENSITY16I_EXT:
- *datatype = GL_SHORT;
- *components = 1;
- break;
- case GL_INTENSITY32I_EXT:
- *datatype = GL_INT;
- *components = 1;
- break;
- case GL_INTENSITY8UI_EXT:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 1;
- break;
- case GL_INTENSITY16UI_EXT:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 1;
- break;
- case GL_INTENSITY32UI_EXT:
- *datatype = GL_UNSIGNED_INT;
- *components = 1;
- break;
- case GL_RGBA8:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 4;
- break;
- case GL_RGBA16:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 4;
- break;
- case GL_RGBA16F_ARB:
- *datatype = GL_HALF_FLOAT;
- *components = 4;
- break;
- case GL_RGBA32F_ARB:
- *datatype = GL_FLOAT;
- *components = 4;
- break;
- case GL_RGBA8I_EXT:
- *datatype = GL_BYTE;
- *components = 4;
- break;
- case GL_RGBA16I_EXT:
- *datatype = GL_SHORT;
- *components = 4;
- break;
- case GL_RGBA32I_EXT:
- *datatype = GL_INT;
- *components = 4;
- break;
- case GL_RGBA8UI_EXT:
- *datatype = GL_UNSIGNED_BYTE;
- *components = 4;
- break;
- case GL_RGBA16UI_EXT:
- *datatype = GL_UNSIGNED_SHORT;
- *components = 4;
- break;
- case GL_RGBA32UI_EXT:
- *datatype = GL_UNSIGNED_INT;
- *components = 4;
- break;
- default:
- return GL_FALSE;
- }
-
- if (*datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
- return GL_FALSE;
-
- if (*datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
- return GL_FALSE;
-
- return GL_TRUE;
-}
-
-
-/** GL_ARB_texture_buffer_object */
-void GLAPIENTRY
-_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
-{
- struct gl_texture_object *texObj;
- struct gl_buffer_object *bufObj;
- GLenum dataType;
- GLuint comps;
-
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (!ctx->Extensions.ARB_texture_buffer_object) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
- return;
- }
-
- if (target != GL_TEXTURE_BUFFER_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
- return;
- }
-
- if (!get_sized_format_info(ctx, internalFormat, &dataType, &comps)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
- internalFormat);
- return;
- }
-
- bufObj = _mesa_lookup_bufferobj(ctx, buffer);
- if (buffer && !bufObj) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
- return;
- }
-
- texObj = _mesa_get_current_tex_object(ctx, target);
-
- _mesa_lock_texture(ctx, texObj);
- {
- _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
- texObj->BufferObjectFormat = internalFormat;
- }
- _mesa_unlock_texture(ctx, texObj);
-}
+/*
+ * Mesa 3-D graphics library
+ *
+ * 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 teximage.c
+ * Texture image-related functions.
+ */
+
+
+#include "glheader.h"
+#include "bufferobj.h"
+#include "context.h"
+#include "enums.h"
+#include "fbobject.h"
+#include "framebuffer.h"
+#include "hash.h"
+#include "image.h"
+#include "imports.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "state.h"
+#include "texcompress.h"
+#include "texfetch.h"
+#include "teximage.h"
+#include "texstate.h"
+#include "texpal.h"
+#include "mtypes.h"
+
+
+/**
+ * State changes which we care about for glCopyTex[Sub]Image() calls.
+ * In particular, we care about pixel transfer state and buffer state
+ * (such as glReadBuffer to make sure we read from the right renderbuffer).
+ */
+#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
+
+
+
+/**
+ * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
+ * elsewhere.
+ */
+void *
+_mesa_alloc_texmemory(GLsizei bytes)
+{
+ return _mesa_align_malloc(bytes, 512);
+}
+
+
+/**
+ * Free texture memory allocated with _mesa_alloc_texmemory()
+ */
+void
+_mesa_free_texmemory(void *m)
+{
+ _mesa_align_free(m);
+}
+
+
+/**
+ * Return the simple base format for a given internal texture format.
+ * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
+ *
+ * \param ctx GL context.
+ * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
+ *
+ * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
+ * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
+ *
+ * This is the format which is used during texture application (i.e. the
+ * texture format and env mode determine the arithmetic used.
+ *
+ * XXX this could be static
+ */
+GLint
+_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
+{
+ switch (internalFormat) {
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ return GL_ALPHA;
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ return GL_LUMINANCE;
+ case 2:
+ 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 GL_LUMINANCE_ALPHA;
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return GL_INTENSITY;
+ case 3:
+ 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:
+ return GL_RGB;
+ case 4:
+ 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:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.EXT_texture_format_BGRA8888) {
+ switch (internalFormat) {
+ case GL_BGRA_EXT:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_depth_texture) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return GL_DEPTH_COMPONENT;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ switch (internalFormat) {
+ case GL_COMPRESSED_ALPHA:
+ return GL_ALPHA;
+ case GL_COMPRESSED_LUMINANCE:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ return GL_LUMINANCE_ALPHA;
+ case GL_COMPRESSED_INTENSITY:
+ return GL_INTENSITY;
+ case GL_COMPRESSED_RGB:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.TDFX_texture_compression_FXT1) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_s3tc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.S3_s3tc) {
+ switch (internalFormat) {
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ return GL_RGB;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.MESA_ycbcr_texture) {
+ if (internalFormat == GL_YCBCR_MESA)
+ return GL_YCBCR_MESA;
+ }
+
+ if (ctx->Extensions.ARB_texture_float) {
+ switch (internalFormat) {
+ case GL_ALPHA16F_ARB:
+ case GL_ALPHA32F_ARB:
+ return GL_ALPHA;
+ case GL_RGBA16F_ARB:
+ case GL_RGBA32F_ARB:
+ return GL_RGBA;
+ case GL_RGB16F_ARB:
+ case GL_RGB32F_ARB:
+ return GL_RGB;
+ case GL_INTENSITY16F_ARB:
+ case GL_INTENSITY32F_ARB:
+ return GL_INTENSITY;
+ case GL_LUMINANCE16F_ARB:
+ case GL_LUMINANCE32F_ARB:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_envmap_bumpmap) {
+ switch (internalFormat) {
+ case GL_DUDV_ATI:
+ case GL_DU8DV8_ATI:
+ return GL_DUDV_ATI;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_snorm) {
+ switch (internalFormat) {
+ case GL_RED_SNORM:
+ case GL_R8_SNORM:
+ case GL_R16_SNORM:
+ return GL_RED;
+ case GL_RG_SNORM:
+ case GL_RG8_SNORM:
+ case GL_RG16_SNORM:
+ return GL_RG;
+ case GL_RGB_SNORM:
+ case GL_RGB8_SNORM:
+ case GL_RGB16_SNORM:
+ return GL_RGB;
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ case GL_RGBA16_SNORM:
+ return GL_RGBA;
+ case GL_ALPHA_SNORM:
+ case GL_ALPHA8_SNORM:
+ case GL_ALPHA16_SNORM:
+ return GL_ALPHA;
+ case GL_LUMINANCE_SNORM:
+ case GL_LUMINANCE8_SNORM:
+ case GL_LUMINANCE16_SNORM:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA_SNORM:
+ case GL_LUMINANCE8_ALPHA8_SNORM:
+ case GL_LUMINANCE16_ALPHA16_SNORM:
+ return GL_LUMINANCE_ALPHA;
+ case GL_INTENSITY_SNORM:
+ case GL_INTENSITY8_SNORM:
+ case GL_INTENSITY16_SNORM:
+ return GL_INTENSITY;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_depth_stencil) {
+ switch (internalFormat) {
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ return GL_DEPTH_STENCIL_EXT;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+#if FEATURE_EXT_texture_sRGB
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ switch (internalFormat) {
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ case GL_COMPRESSED_SRGB_EXT:
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ return GL_RGB;
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ return GL_RGBA;
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+ return GL_LUMINANCE_ALPHA;
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ return GL_LUMINANCE;
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif /* FEATURE_EXT_texture_sRGB */
+
+ if (ctx->Extensions.EXT_texture_integer) {
+ switch (internalFormat) {
+ case GL_RGBA8UI_EXT:
+ case GL_RGBA16UI_EXT:
+ case GL_RGBA32UI_EXT:
+ case GL_RGBA8I_EXT:
+ case GL_RGBA16I_EXT:
+ case GL_RGBA32I_EXT:
+ return GL_RGBA;
+ case GL_RGB8UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_RGB8I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_RGB32I_EXT:
+ return GL_RGB;
+ case GL_ALPHA8UI_EXT:
+ case GL_ALPHA16UI_EXT:
+ case GL_ALPHA32UI_EXT:
+ case GL_ALPHA8I_EXT:
+ case GL_ALPHA16I_EXT:
+ case GL_ALPHA32I_EXT:
+ return GL_ALPHA;
+ case GL_INTENSITY8UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_INTENSITY32I_EXT:
+ return GL_INTENSITY;
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_rg) {
+ switch (internalFormat) {
+ case GL_R16F:
+ /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
+ */
+ if (!ctx->Extensions.ARB_half_float_pixel)
+ break;
+ /* FALLTHROUGH */
+ case GL_R32F:
+ if (!ctx->Extensions.ARB_texture_float)
+ break;
+ return GL_RED;
+ case GL_R8I:
+ case GL_R8UI:
+ case GL_R16I:
+ case GL_R16UI:
+ case GL_R32I:
+ case GL_R32UI:
+ if (!ctx->Extensions.EXT_texture_integer)
+ break;
+ /* FALLTHROUGH */
+ case GL_R8:
+ case GL_R16:
+ case GL_RED:
+ case GL_COMPRESSED_RED:
+ return GL_RED;
+
+ case GL_RG16F:
+ /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
+ */
+ if (!ctx->Extensions.ARB_half_float_pixel)
+ break;
+ /* FALLTHROUGH */
+ case GL_RG32F:
+ if (!ctx->Extensions.ARB_texture_float)
+ break;
+ return GL_RG;
+ case GL_RG8I:
+ case GL_RG8UI:
+ case GL_RG16I:
+ case GL_RG16UI:
+ case GL_RG32I:
+ case GL_RG32UI:
+ if (!ctx->Extensions.EXT_texture_integer)
+ break;
+ /* FALLTHROUGH */
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ case GL_COMPRESSED_RG:
+ return GL_RG;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_shared_exponent) {
+ switch (internalFormat) {
+ case GL_RGB9_E5_EXT:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_float) {
+ switch (internalFormat) {
+ case GL_R11F_G11F_B10F_EXT:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_depth_buffer_float) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT32F:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH32F_STENCIL8:
+ return GL_DEPTH_STENCIL;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_compression_rgtc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RED_RGTC1:
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ return GL_RED;
+ case GL_COMPRESSED_RG_RGTC2:
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ return GL_RG;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_latc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_texture_compression_3dc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ return -1; /* error */
+}
+
+
+/**
+ * For cube map faces, return a face index in [0,5].
+ * For other targets return 0;
+ */
+GLuint
+_mesa_tex_target_to_face(GLenum target)
+{
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
+ return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
+ else
+ return 0;
+}
+
+
+
+/**
+ * Store a gl_texture_image pointer in a gl_texture_object structure
+ * according to the target and level parameters.
+ *
+ * \param tObj texture object.
+ * \param target texture target.
+ * \param level image level.
+ * \param texImage texture image.
+ */
+void
+_mesa_set_tex_image(struct gl_texture_object *tObj,
+ GLenum target, GLint level,
+ struct gl_texture_image *texImage)
+{
+ const GLuint face = _mesa_tex_target_to_face(target);
+
+ ASSERT(tObj);
+ ASSERT(texImage);
+ ASSERT(target != GL_TEXTURE_RECTANGLE_NV || level == 0);
+
+ tObj->Image[face][level] = texImage;
+
+ /* Set the 'back' pointer */
+ texImage->TexObject = tObj;
+ texImage->Level = level;
+ texImage->Face = face;
+}
+
+
+/**
+ * Allocate a texture image structure.
+ *
+ * Called via ctx->Driver.NewTextureImage() unless overriden by a device
+ * driver.
+ *
+ * \return a pointer to gl_texture_image struct with all fields initialized to
+ * zero.
+ */
+struct gl_texture_image *
+_mesa_new_texture_image( struct gl_context *ctx )
+{
+ (void) ctx;
+ return CALLOC_STRUCT(gl_texture_image);
+}
+
+
+/**
+ * Free texture image data.
+ * This function is a fallback called via ctx->Driver.FreeTextureImageBuffer().
+ *
+ * \param texImage texture image.
+ *
+ * Free the texture image data if it's not marked as client data.
+ */
+void
+_mesa_free_texture_image_data(struct gl_context *ctx,
+ struct gl_texture_image *texImage)
+{
+ (void) ctx;
+
+ if (texImage->Data && !texImage->IsClientData) {
+ /* free the old texture data */
+ _mesa_free_texmemory(texImage->Data);
+ }
+
+ texImage->Data = NULL;
+}
+
+
+/**
+ * Free texture image.
+ *
+ * \param texImage texture image.
+ *
+ * Free the texture image structure and the associated image data.
+ */
+void
+_mesa_delete_texture_image(struct gl_context *ctx,
+ struct gl_texture_image *texImage)
+{
+ /* Free texImage->Data and/or any other driver-specific texture
+ * image storage.
+ */
+ ASSERT(ctx->Driver.FreeTextureImageBuffer);
+ ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
+
+ ASSERT(texImage->Data == NULL);
+ if (texImage->ImageOffsets)
+ free(texImage->ImageOffsets);
+ free(texImage);
+}
+
+
+/**
+ * Test if a target is a proxy target.
+ *
+ * \param target texture target.
+ *
+ * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
+ */
+GLboolean
+_mesa_is_proxy_texture(GLenum target)
+{
+ /* NUM_TEXTURE_TARGETS should match number of terms below,
+ * except there's no proxy for GL_TEXTURE_BUFFER.
+ */
+ assert(NUM_TEXTURE_TARGETS == 8);
+
+ return (target == GL_PROXY_TEXTURE_1D ||
+ target == GL_PROXY_TEXTURE_2D ||
+ target == GL_PROXY_TEXTURE_3D ||
+ target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
+ target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
+ target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
+}
+
+
+/**
+ * Return the proxy target which corresponds to the given texture target
+ */
+static GLenum
+get_proxy_target(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ return GL_PROXY_TEXTURE_1D;
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return GL_PROXY_TEXTURE_2D;
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ return GL_PROXY_TEXTURE_3D;
+ 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_CUBE_MAP_ARB:
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return GL_PROXY_TEXTURE_RECTANGLE_NV;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
+ default:
+ _mesa_problem(NULL, "unexpected target in get_proxy_target()");
+ return 0;
+ }
+}
+
+
+/**
+ * Get the texture object that corresponds to the target of the given
+ * texture unit. The target should have already been checked for validity.
+ *
+ * \param ctx GL context.
+ * \param texUnit texture unit.
+ * \param target texture target.
+ *
+ * \return pointer to the texture object on success, or NULL on failure.
+ */
+struct gl_texture_object *
+_mesa_select_tex_object(struct gl_context *ctx,
+ const struct gl_texture_unit *texUnit,
+ GLenum target)
+{
+ const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ return texUnit->CurrentTex[TEXTURE_1D_INDEX];
+ case GL_PROXY_TEXTURE_1D:
+ return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
+ case GL_TEXTURE_2D:
+ return texUnit->CurrentTex[TEXTURE_2D_INDEX];
+ case GL_PROXY_TEXTURE_2D:
+ return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
+ case GL_TEXTURE_3D:
+ return texUnit->CurrentTex[TEXTURE_3D_INDEX];
+ case GL_PROXY_TEXTURE_3D:
+ return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
+ 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_CUBE_MAP_ARB:
+ return ctx->Extensions.ARB_texture_cube_map
+ ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ return ctx->Extensions.ARB_texture_cube_map
+ ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
+ case GL_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle
+ ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle
+ ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
+ case GL_TEXTURE_BUFFER:
+ return ctx->Extensions.ARB_texture_buffer_object
+ ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
+ default:
+ _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
+ return NULL;
+ }
+}
+
+
+/**
+ * Return pointer to texture object for given target on current texture unit.
+ */
+struct gl_texture_object *
+_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
+{
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ return _mesa_select_tex_object(ctx, texUnit, target);
+}
+
+
+/**
+ * Get a texture image pointer from a texture object, given a texture
+ * target and mipmap level. The target and level parameters should
+ * have already been error-checked.
+ *
+ * \param ctx GL context.
+ * \param texObj texture unit.
+ * \param target texture target.
+ * \param level image level.
+ *
+ * \return pointer to the texture image structure, or NULL on failure.
+ */
+struct gl_texture_image *
+_mesa_select_tex_image(struct gl_context *ctx,
+ const struct gl_texture_object *texObj,
+ GLenum target, GLint level)
+{
+ const GLuint face = _mesa_tex_target_to_face(target);
+
+ ASSERT(texObj);
+ ASSERT(level >= 0);
+ ASSERT(level < MAX_TEXTURE_LEVELS);
+
+ return texObj->Image[face][level];
+}
+
+
+/**
+ * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
+ * it and install it. Only return NULL if passed a bad parameter or run
+ * out of memory.
+ */
+struct gl_texture_image *
+_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
+ GLenum target, GLint level)
+{
+ struct gl_texture_image *texImage;
+
+ if (!texObj)
+ return NULL;
+
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
+ return NULL;
+ }
+
+ _mesa_set_tex_image(texObj, target, level, texImage);
+ }
+
+ return texImage;
+}
+
+
+/**
+ * Return pointer to the specified proxy texture image.
+ * Note that proxy textures are per-context, not per-texture unit.
+ * \return pointer to texture image or NULL if invalid target, invalid
+ * level, or out of memory.
+ */
+struct gl_texture_image *
+_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
+{
+ struct gl_texture_image *texImage;
+ GLuint texIndex;
+
+ if (level < 0 )
+ return NULL;
+
+ switch (target) {
+ case GL_PROXY_TEXTURE_1D:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_1D_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_2D:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_2D_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_3D:
+ if (level >= ctx->Const.Max3DTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_3D_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ if (level >= ctx->Const.MaxCubeTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_CUBE_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ if (level > 0)
+ return NULL;
+ texIndex = TEXTURE_RECT_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_1D_ARRAY_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_2D_ARRAY_INDEX;
+ break;
+ default:
+ return NULL;
+ }
+
+ texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
+ return NULL;
+ }
+ ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
+ /* Set the 'back' pointer */
+ texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
+ }
+ return texImage;
+}
+
+
+/**
+ * Get the maximum number of allowed mipmap levels.
+ *
+ * \param ctx GL context.
+ * \param target texture target.
+ *
+ * \return the maximum number of allowed mipmap levels for the given
+ * texture target, or zero if passed a bad target.
+ *
+ * \sa gl_constants.
+ */
+GLint
+_mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return ctx->Const.MaxTextureLevels;
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ return ctx->Const.Max3DTextureLevels;
+ 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_CUBE_MAP_ARB:
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ return ctx->Extensions.ARB_texture_cube_map
+ ? ctx->Const.MaxCubeTextureLevels : 0;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array)
+ ? ctx->Const.MaxTextureLevels : 0;
+ case GL_TEXTURE_BUFFER:
+ /* fall-through */
+ default:
+ return 0; /* bad target */
+ }
+}
+
+
+/**
+ * Return number of dimensions per mipmap level for the given texture target.
+ */
+GLint
+_mesa_get_texture_dimensions(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ return 1;
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_RECTANGLE:
+ case GL_TEXTURE_CUBE_MAP:
+ case GL_PROXY_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_RECTANGLE:
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ case GL_TEXTURE_1D_ARRAY:
+ case GL_PROXY_TEXTURE_1D_ARRAY:
+ return 2;
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_PROXY_TEXTURE_2D_ARRAY:
+ return 3;
+ case GL_TEXTURE_BUFFER:
+ /* fall-through */
+ default:
+ _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
+ target);
+ return 2;
+ }
+}
+
+
+
+
+#if 000 /* not used anymore */
+/*
+ * glTexImage[123]D can accept a NULL image pointer. In this case we
+ * create a texture image with unspecified image contents per the OpenGL
+ * spec.
+ */
+static GLubyte *
+make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
+{
+ const GLint components = _mesa_components_in_format(format);
+ const GLint numPixels = width * height * depth;
+ GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
+
+#ifdef DEBUG
+ /*
+ * Let's see if anyone finds this. If glTexImage2D() is called with
+ * a NULL image pointer then load the texture image with something
+ * interesting instead of leaving it indeterminate.
+ */
+ if (data) {
+ static const char message[8][32] = {
+ " X X XXXXX XXX X ",
+ " XX XX X X X X X ",
+ " X X X X X X X ",
+ " X X XXXX XXX XXXXX ",
+ " X X X X X X ",
+ " X X X X X X X ",
+ " X X XXXXX XXX X X ",
+ " "
+ };
+
+ GLubyte *imgPtr = data;
+ GLint h, i, j, k;
+ for (h = 0; h < depth; h++) {
+ for (i = 0; i < height; i++) {
+ GLint srcRow = 7 - (i % 8);
+ for (j = 0; j < width; j++) {
+ GLint srcCol = j % 32;
+ GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
+ for (k = 0; k < components; k++) {
+ *imgPtr++ = texel;
+ }
+ }
+ }
+ }
+ }
+#endif
+
+ return data;
+}
+#endif
+
+
+
+/**
+ * Reset the fields of a gl_texture_image struct to zero.
+ *
+ * \param img texture image structure.
+ *
+ * This is called when a proxy texture test fails, we set all the
+ * image members (except DriverData) to zero.
+ * It's also used in glTexImage[123]D as a safeguard to be sure all
+ * required fields get initialized properly by the Driver.TexImage[123]D
+ * functions.
+ */
+static void
+clear_teximage_fields(struct gl_texture_image *img)
+{
+ ASSERT(img);
+ img->_BaseFormat = 0;
+ img->InternalFormat = 0;
+ img->Border = 0;
+ img->Width = 0;
+ img->Height = 0;
+ img->Depth = 0;
+ img->RowStride = 0;
+ if (img->ImageOffsets) {
+ free(img->ImageOffsets);
+ img->ImageOffsets = NULL;
+ }
+ img->Width2 = 0;
+ img->Height2 = 0;
+ img->Depth2 = 0;
+ img->WidthLog2 = 0;
+ img->HeightLog2 = 0;
+ img->DepthLog2 = 0;
+ img->Data = NULL;
+ img->TexFormat = MESA_FORMAT_NONE;
+ img->FetchTexelc = NULL;
+ img->FetchTexelf = NULL;
+}
+
+
+/**
+ * Initialize basic fields of the gl_texture_image struct.
+ *
+ * \param ctx GL context.
+ * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
+ * \param img texture image structure to be initialized.
+ * \param width image width.
+ * \param height image height.
+ * \param depth image depth.
+ * \param border image border.
+ * \param internalFormat internal format.
+ * \param format the actual hardware format (one of MESA_FORMAT_*)
+ *
+ * Fills in the fields of \p img with the given information.
+ * Note: width, height and depth include the border.
+ */
+void
+_mesa_init_teximage_fields(struct gl_context *ctx, GLenum target,
+ struct gl_texture_image *img,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum internalFormat,
+ gl_format format)
+{
+ GLint i, dims;
+
+ ASSERT(img);
+ ASSERT(width >= 0);
+ ASSERT(height >= 0);
+ ASSERT(depth >= 0);
+
+ img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
+ ASSERT(img->_BaseFormat > 0);
+ img->InternalFormat = internalFormat;
+ img->Border = border;
+ img->Width = width;
+ img->Height = height;
+ img->Depth = depth;
+
+ img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
+ img->WidthLog2 = _mesa_logbase2(img->Width2);
+
+ if (height == 1) { /* 1-D texture */
+ img->Height2 = 1;
+ img->HeightLog2 = 0;
+ }
+ else {
+ img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
+ img->HeightLog2 = _mesa_logbase2(img->Height2);
+ }
+
+ if (depth == 1) { /* 2-D texture */
+ img->Depth2 = 1;
+ img->DepthLog2 = 0;
+ }
+ else {
+ img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
+ img->DepthLog2 = _mesa_logbase2(img->Depth2);
+ }
+
+ img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
+
+ if ((width == 1 || _mesa_is_pow_two(img->Width2)) &&
+ (height == 1 || _mesa_is_pow_two(img->Height2)) &&
+ (depth == 1 || _mesa_is_pow_two(img->Depth2)))
+ img->_IsPowerOfTwo = GL_TRUE;
+ else
+ img->_IsPowerOfTwo = GL_FALSE;
+
+ /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
+ img->RowStride = width;
+ /* Allocate the ImageOffsets array and initialize to typical values.
+ * We allocate the array for 1D/2D textures too in order to avoid special-
+ * case code in the texstore routines.
+ */
+ if (img->ImageOffsets)
+ free(img->ImageOffsets);
+ img->ImageOffsets = (GLuint *) malloc(depth * sizeof(GLuint));
+ for (i = 0; i < depth; i++) {
+ img->ImageOffsets[i] = i * width * height;
+ }
+
+ /* Compute Width/Height/DepthScale for mipmap lod computation */
+ if (target == GL_TEXTURE_RECTANGLE_NV) {
+ /* scale = 1.0 since texture coords directly map to texels */
+ img->WidthScale = 1.0;
+ img->HeightScale = 1.0;
+ img->DepthScale = 1.0;
+ }
+ else {
+ img->WidthScale = (GLfloat) img->Width;
+ img->HeightScale = (GLfloat) img->Height;
+ img->DepthScale = (GLfloat) img->Depth;
+ }
+
+ img->TexFormat = format;
+
+ dims = _mesa_get_texture_dimensions(target);
+
+ _mesa_set_fetch_functions(img, dims);
+}
+
+
+/**
+ * Free and clear fields of the gl_texture_image struct.
+ *
+ * \param ctx GL context.
+ * \param texImage texture image structure to be cleared.
+ *
+ * After the call, \p texImage will have no data associated with it. Its
+ * fields are cleared so that its parent object will test incomplete.
+ */
+void
+_mesa_clear_texture_image(struct gl_context *ctx,
+ struct gl_texture_image *texImage)
+{
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
+ clear_teximage_fields(texImage);
+}
+
+
+/**
+ * This is the fallback for Driver.TestProxyTexImage(). Test the texture
+ * level, width, height and depth against the ctx->Const limits for textures.
+ *
+ * A hardware driver might override this function if, for example, the
+ * max 3D texture size is 512x512x64 (i.e. not a cube).
+ *
+ * Note that width, height, depth == 0 is not an error. However, a
+ * texture with zero width/height/depth will be considered "incomplete"
+ * and texturing will effectively be disabled.
+ *
+ * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
+ * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
+ * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
+ * \param level as passed to glTexImage
+ * \param internalFormat as passed to glTexImage
+ * \param format as passed to glTexImage
+ * \param type as passed to glTexImage
+ * \param width as passed to glTexImage
+ * \param height as passed to glTexImage
+ * \param depth as passed to glTexImage
+ * \param border as passed to glTexImage
+ * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
+ */
+GLboolean
+_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat, GLenum format, GLenum type,
+ GLint width, GLint height, GLint depth, GLint border)
+{
+ GLint maxSize;
+
+ (void) internalFormat;
+ (void) format;
+ (void) type;
+
+ switch (target) {
+ case GL_PROXY_TEXTURE_1D:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_2D:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 2 * border || height > 2 + maxSize)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_3D:
+ maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 2 * border || height > 2 + maxSize)
+ return GL_FALSE;
+ if (depth < 2 * border || depth > 2 + maxSize)
+ return GL_FALSE;
+ if (level >= ctx->Const.Max3DTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
+ return GL_FALSE;
+ if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ maxSize = ctx->Const.MaxTextureRectSize;
+ if (width < 0 || width > maxSize)
+ return GL_FALSE;
+ if (height < 0 || height > maxSize)
+ return GL_FALSE;
+ if (level != 0)
+ return GL_FALSE;
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 2 * border || height > 2 + maxSize)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxCubeTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 2 * border || height > 2 + maxSize)
+ return GL_FALSE;
+ if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ default:
+ _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Check if the memory used by the texture would exceed the driver's limit.
+ * This lets us support a max 3D texture size of 8K (for example) but
+ * prevents allocating a full 8K x 8K x 8K texture.
+ * XXX this could be rolled into the proxy texture size test (above) but
+ * we don't have the actual texture internal format at that point.
+ */
+static GLboolean
+legal_texture_size(struct gl_context *ctx, gl_format format,
+ GLint width, GLint height, GLint depth)
+{
+ uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
+ uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
+ return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
+}
+
+
+
+/**
+ * Helper function to determine whether a target and specific compression
+ * format are supported.
+ */
+static GLboolean
+target_can_be_compressed(const struct gl_context *ctx, GLenum target,
+ GLenum intFormat)
+{
+ (void) intFormat; /* not used yet */
+
+ switch (target) {
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return GL_TRUE; /* true for any compressed format so far */
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ return ctx->Extensions.ARB_texture_cube_map;
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Check if the given texture target value is legal for a
+ * glTexImage1/2/3D call.
+ */
+static GLboolean
+legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
+{
+ switch (dims) {
+ case 1:
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+ case 2:
+ switch (target) {
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return GL_TRUE;
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ return ctx->Extensions.ARB_texture_cube_map;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+ case 3:
+ switch (target) {
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ return GL_TRUE;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+ default:
+ _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Check if the given texture target value is legal for a
+ * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
+ * The difference compared to legal_teximage_target() above is that
+ * proxy targets are not supported.
+ */
+static GLboolean
+legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
+{
+ switch (dims) {
+ case 1:
+ return target == GL_TEXTURE_1D;
+ case 2:
+ switch (target) {
+ case GL_TEXTURE_2D:
+ return GL_TRUE;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ return ctx->Extensions.ARB_texture_cube_map;
+ case GL_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+ case 3:
+ switch (target) {
+ case GL_TEXTURE_3D:
+ return GL_TRUE;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+ default:
+ _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
+ dims);
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test the glTexImage[123]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param internalFormat internal format given by the user.
+ * \param format pixel data format given by the user.
+ * \param type pixel data type given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param depth image depth given by the user.
+ * \param border image border given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __struct gl_contextRec::Const and the supported extensions, and according
+ * to the OpenGL specification.
+ */
+static GLboolean
+texture_error_check( struct gl_context *ctx,
+ GLuint dimensions, GLenum target,
+ GLint level, GLint internalFormat,
+ GLenum format, GLenum type,
+ GLint width, GLint height,
+ GLint depth, GLint border )
+{
+ const GLenum proxyTarget = get_proxy_target(target);
+ const GLboolean isProxy = target == proxyTarget;
+ GLboolean sizeOK = GL_TRUE;
+ GLboolean colorFormat;
+
+ /* Even though there are no color-index textures, we still have to support
+ * uploading color-index data and remapping it to RGB via the
+ * GL_PIXEL_MAP_I_TO_[RGBA] tables.
+ */
+ const GLboolean indexFormat = (format == GL_COLOR_INDEX);
+
+ /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(level=%d)", dimensions, level);
+ }
+ return GL_TRUE;
+ }
+
+ /* Check border */
+ if (border < 0 || border > 1 ||
+ ((target == GL_TEXTURE_RECTANGLE_NV ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(border=%d)", dimensions, border);
+ }
+ return GL_TRUE;
+ }
+
+ if (width < 0 || height < 0 || depth < 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(width, height or depth < 0)", dimensions);
+ }
+ return GL_TRUE;
+ }
+
+ /* Do this simple check before calling the TestProxyTexImage() function */
+ if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
+ sizeOK = (width == height);
+ }
+
+ /*
+ * Use the proxy texture driver hook to see if the size/level/etc are
+ * legal.
+ */
+ sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
+ internalFormat, format,
+ type, width, height,
+ depth, border);
+ if (!sizeOK) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
+ dimensions, level, width, height, depth);
+ }
+ return GL_TRUE;
+ }
+
+ /* Check internalFormat */
+ if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(internalFormat=%s)",
+ dimensions, _mesa_lookup_enum_by_nr(internalFormat));
+ }
+ return GL_TRUE;
+ }
+
+ /* Check incoming image format and type */
+ if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
+ /* Normally, GL_INVALID_OPERATION is generated by a format/type
+ * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
+ * GL_EXT_texture_integer extension, some combinations should generate
+ * GL_INVALID_ENUM instead (grr!).
+ */
+ if (!isProxy) {
+ GLenum error = _mesa_is_integer_format(format)
+ ? GL_INVALID_ENUM : GL_INVALID_OPERATION;
+ _mesa_error(ctx, error,
+ "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
+ dimensions, format, type);
+ }
+ return GL_TRUE;
+ }
+
+ /* make sure internal format and format basically agree */
+ colorFormat = _mesa_is_color_format(format);
+ if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
+ (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
+ (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
+ (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
+ (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
+ dimensions, internalFormat, format);
+ return GL_TRUE;
+ }
+
+ /* additional checks for ycbcr textures */
+ if (internalFormat == GL_YCBCR_MESA) {
+ ASSERT(ctx->Extensions.MESA_ycbcr_texture);
+ if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
+ type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
+ char message[100];
+ _mesa_snprintf(message, sizeof(message),
+ "glTexImage%dD(format/type YCBCR mismatch", dimensions);
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
+ return GL_TRUE; /* error */
+ }
+ if (target != GL_TEXTURE_2D &&
+ target != GL_PROXY_TEXTURE_2D &&
+ target != GL_TEXTURE_RECTANGLE_NV &&
+ target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
+ return GL_TRUE;
+ }
+ if (border != 0) {
+ if (!isProxy) {
+ char message[100];
+ _mesa_snprintf(message, sizeof(message),
+ "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
+ dimensions, border);
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
+ }
+ return GL_TRUE;
+ }
+ }
+
+ /* additional checks for depth textures */
+ if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
+ /* Only 1D, 2D, rect and array textures supported, not 3D or cubes */
+ if (target != GL_TEXTURE_1D &&
+ target != GL_PROXY_TEXTURE_1D &&
+ target != GL_TEXTURE_2D &&
+ target != GL_PROXY_TEXTURE_2D &&
+ target != GL_TEXTURE_1D_ARRAY &&
+ target != GL_PROXY_TEXTURE_1D_ARRAY &&
+ target != GL_TEXTURE_2D_ARRAY &&
+ target != GL_PROXY_TEXTURE_2D_ARRAY &&
+ target != GL_TEXTURE_RECTANGLE_ARB &&
+ target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage(target/internalFormat)");
+ return GL_TRUE;
+ }
+ }
+
+ /* additional checks for compressed textures */
+ if (_mesa_is_compressed_format(ctx, internalFormat)) {
+ if (!target_can_be_compressed(ctx, target, internalFormat)) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage%dD(target)", dimensions);
+ return GL_TRUE;
+ }
+ if (border != 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(border!=0)", dimensions);
+ }
+ return GL_TRUE;
+ }
+ }
+
+ /* additional checks for integer textures */
+ if (ctx->Extensions.EXT_texture_integer &&
+ (_mesa_is_integer_format(format) !=
+ _mesa_is_integer_format(internalFormat))) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(integer/non-integer format mismatch)",
+ dimensions);
+ }
+ return GL_TRUE;
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glTexSubImage[123]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param xoffset sub-image x offset given by the user.
+ * \param yoffset sub-image y offset given by the user.
+ * \param zoffset sub-image z offset given by the user.
+ * \param format pixel data format given by the user.
+ * \param type pixel data type given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param depth image depth given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __struct gl_contextRec::Const and the supported extensions, and according
+ * to the OpenGL specification.
+ */
+static GLboolean
+subtexture_error_check( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type )
+{
+ /* Basic level check */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
+ return GL_TRUE;
+ }
+
+ /* Check for negative sizes */
+ if (width < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(width=%d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if (height < 0 && dimensions > 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(height=%d)", dimensions, height);
+ return GL_TRUE;
+ }
+ if (depth < 0 && dimensions > 2) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(depth=%d)", dimensions, depth);
+ return GL_TRUE;
+ }
+
+ if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
+ /* As with the glTexImage2D check above, the error code here
+ * depends on texture integer.
+ */
+ GLenum error = _mesa_is_integer_format(format)
+ ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
+ _mesa_error(ctx, error,
+ "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
+ dimensions, format, type);
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Do second part of glTexSubImage which depends on the destination texture.
+ * \return GL_TRUE if error recorded, GL_FALSE otherwise
+ */
+static GLboolean
+subtexture_error_check2( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type,
+ const struct gl_texture_image *destTex )
+{
+ if (!destTex) {
+ /* undefined image level */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
+ return GL_TRUE;
+ }
+
+ if (xoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (dimensions > 1) {
+ if (yoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+ if (dimensions > 2) {
+ if (zoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
+ return GL_TRUE;
+ }
+ if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
+ return GL_TRUE;
+ }
+ }
+
+ if (_mesa_is_format_compressed(destTex->TexFormat)) {
+ GLuint bw, bh;
+
+ /* do tests which depend on compression block size */
+ _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh);
+
+ /* offset must be multiple of block size */
+ if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
+ dimensions, xoffset, yoffset);
+ return GL_TRUE;
+ }
+ /* size must be multiple of bw by bh or equal to whole texture size */
+ if ((width % bw != 0) && (GLuint) width != destTex->Width) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(width = %d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if ((height % bh != 0) && (GLuint) height != destTex->Height) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(height = %d)", dimensions, height);
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glCopyTexImage[12]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param internalFormat internal format given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param border texture border.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __struct gl_contextRec::Const and the supported extensions, and according
+ * to the OpenGL specification.
+ */
+static GLboolean
+copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level, GLint internalFormat,
+ GLint width, GLint height, GLint border )
+{
+ const GLenum proxyTarget = get_proxy_target(target);
+ const GLenum type = GL_FLOAT;
+ GLboolean sizeOK;
+ GLint format;
+
+ /* check target */
+ if (!legal_texsubimage_target(ctx, dimensions, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
+ dimensions, _mesa_lookup_enum_by_nr(target));
+ return GL_TRUE;
+ }
+
+ /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage%dD(level=%d)", dimensions, level);
+ return GL_TRUE;
+ }
+
+ /* Check that the source buffer is complete */
+ if (ctx->ReadBuffer->Name) {
+ if (ctx->ReadBuffer->_Status == 0) {
+ _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
+ }
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glCopyTexImage%dD(invalid readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* Check border */
+ if (border < 0 || border > 1 ||
+ ((target == GL_TEXTURE_RECTANGLE_NV ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
+ return GL_TRUE;
+ }
+
+ format = _mesa_base_tex_format(ctx, internalFormat);
+ if (format < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage%dD(internalFormat)", dimensions);
+ return GL_TRUE;
+ }
+
+ if (!_mesa_source_buffer_exists(ctx, format)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(missing readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+
+ /* Do size, level checking */
+ sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB)
+ ? (width == height) : 1;
+
+ sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
+ internalFormat, format,
+ type, width, height,
+ 1, border);
+
+ if (!sizeOK) {
+ if (dimensions == 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage1D(width=%d)", width);
+ }
+ else {
+ ASSERT(dimensions == 2);
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage2D(width=%d, height=%d)", width, height);
+ }
+ return GL_TRUE;
+ }
+
+ if (_mesa_is_compressed_format(ctx, internalFormat)) {
+ if (!target_can_be_compressed(ctx, target, internalFormat)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glCopyTexImage%dD(target)", dimensions);
+ return GL_TRUE;
+ }
+ if (border != 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(border!=0)", dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (_mesa_is_depth_format(internalFormat)) {
+ /* make sure we have depth/stencil buffers */
+ if (!ctx->ReadBuffer->_DepthBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(no depth)", dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (_mesa_is_depthstencil_format(internalFormat)) {
+ /* make sure we have depth/stencil buffers */
+ if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(no depth/stencil buffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glCopyTexSubImage[12]D() parameters for errors.
+ * Note that this is the first part of error checking.
+ * See also copytexsubimage_error_check2() below for the second part.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ */
+static GLboolean
+copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level)
+{
+ /* Check that the source buffer is complete */
+ if (ctx->ReadBuffer->Name) {
+ if (ctx->ReadBuffer->_Status == 0) {
+ _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
+ }
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glCopyTexImage%dD(invalid readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* check target (proxies not allowed) */
+ if (!legal_texsubimage_target(ctx, dimensions, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
+ dimensions, _mesa_lookup_enum_by_nr(target));
+ return GL_TRUE;
+ }
+
+ /* Check level */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(level=%d)", dimensions, level);
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Second part of error checking for glCopyTexSubImage[12]D().
+ * \param xoffset sub-image x offset given by the user.
+ * \param yoffset sub-image y offset given by the user.
+ * \param zoffset sub-image z offset given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ */
+static GLboolean
+copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height,
+ const struct gl_texture_image *teximage )
+{
+ /* check that dest tex image exists */
+ if (!teximage) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(undefined texture level: %d)",
+ dimensions, level);
+ return GL_TRUE;
+ }
+
+ /* Check size */
+ if (width < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(width=%d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if (dimensions > 1 && height < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(height=%d)", dimensions, height);
+ return GL_TRUE;
+ }
+
+ /* check x/y offsets */
+ if (xoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
+ return GL_TRUE;
+ }
+ if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset+width)", dimensions);
+ return GL_TRUE;
+ }
+ if (dimensions > 1) {
+ if (yoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
+ return GL_TRUE;
+ }
+ /* NOTE: we're adding the border here, not subtracting! */
+ if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(yoffset+height)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* check z offset */
+ if (dimensions > 2) {
+ if (zoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(zoffset)", dimensions);
+ return GL_TRUE;
+ }
+ if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ if (_mesa_is_format_compressed(teximage->TexFormat)) {
+ /* offset must be multiple of 4 */
+ if ((xoffset & 3) || (yoffset & 3)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions);
+ return GL_TRUE;
+ }
+ /* size must be multiple of 4 */
+ if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(width)", dimensions);
+ return GL_TRUE;
+ }
+ if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(height)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ if (teximage->InternalFormat == GL_YCBCR_MESA) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
+ return GL_TRUE;
+ }
+
+ if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
+ dimensions, teximage->_BaseFormat);
+ return GL_TRUE;
+ }
+
+ if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
+ if (!ctx->ReadBuffer->_DepthBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(no depth buffer)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(no depth/stencil buffer)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* If copying into an integer texture, the source buffer must also be
+ * integer-valued.
+ */
+ if (_mesa_is_format_integer_color(teximage->TexFormat)) {
+ struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
+ if (!_mesa_is_format_integer_color(rb->Format)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(source buffer is not integer format)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/** Callback info for walking over FBO hash table */
+struct cb_info
+{
+ struct gl_context *ctx;
+ struct gl_texture_object *texObj;
+ GLuint level, face;
+};
+
+
+/**
+ * Check render to texture callback. Called from _mesa_HashWalk().
+ */
+static void
+check_rtt_cb(GLuint key, void *data, void *userData)
+{
+ struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
+ const struct cb_info *info = (struct cb_info *) userData;
+ struct gl_context *ctx = info->ctx;
+ const struct gl_texture_object *texObj = info->texObj;
+ const GLuint level = info->level, face = info->face;
+
+ /* If this is a user-created FBO */
+ if (fb->Name) {
+ GLuint i;
+ /* check if any of the FBO's attachments point to 'texObj' */
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+ if (att->Type == GL_TEXTURE &&
+ att->Texture == texObj &&
+ att->TextureLevel == level &&
+ att->CubeMapFace == face) {
+ ASSERT(_mesa_get_attachment_teximage(att));
+ /* Tell driver about the new renderbuffer texture */
+ ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
+ /* Mark fb status as indeterminate to force re-validation */
+ fb->_Status = 0;
+ }
+ }
+ }
+}
+
+
+/**
+ * When a texture image is specified we have to check if it's bound to
+ * any framebuffer objects (render to texture) in order to detect changes
+ * in size or format since that effects FBO completeness.
+ * Any FBOs rendering into the texture must be re-validated.
+ */
+static void
+update_fbo_texture(struct gl_context *ctx, struct gl_texture_object *texObj,
+ GLuint face, GLuint level)
+{
+ /* Only check this texture if it's been marked as RenderToTexture */
+ if (texObj->_RenderToTexture) {
+ struct cb_info info;
+ info.ctx = ctx;
+ info.texObj = texObj;
+ info.level = level;
+ info.face = face;
+ _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
+ }
+}
+
+
+/**
+ * If the texture object's GenerateMipmap flag is set and we've
+ * changed the texture base level image, regenerate the rest of the
+ * mipmap levels now.
+ */
+static INLINE void
+check_gen_mipmap(struct gl_context *ctx, GLenum target,
+ struct gl_texture_object *texObj, GLint level)
+{
+ ASSERT(target != GL_TEXTURE_CUBE_MAP);
+ if (texObj->GenerateMipmap &&
+ level == texObj->BaseLevel &&
+ level < texObj->MaxLevel) {
+ ASSERT(ctx->Driver.GenerateMipmap);
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+}
+
+
+/** Debug helper: override the user-requested internal format */
+static GLenum
+override_internal_format(GLenum internalFormat, GLint width, GLint height)
+{
+#if 0
+ if (internalFormat == GL_RGBA16F_ARB ||
+ internalFormat == GL_RGBA32F_ARB) {
+ printf("Convert rgba float tex to int %d x %d\n", width, height);
+ return GL_RGBA;
+ }
+ else if (internalFormat == GL_RGB16F_ARB ||
+ internalFormat == GL_RGB32F_ARB) {
+ printf("Convert rgb float tex to int %d x %d\n", width, height);
+ return GL_RGB;
+ }
+ else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
+ internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
+ printf("Convert luminance float tex to int %d x %d\n", width, height);
+ return GL_LUMINANCE_ALPHA;
+ }
+ else if (internalFormat == GL_LUMINANCE16F_ARB ||
+ internalFormat == GL_LUMINANCE32F_ARB) {
+ printf("Convert luminance float tex to int %d x %d\n", width, height);
+ return GL_LUMINANCE;
+ }
+ else if (internalFormat == GL_ALPHA16F_ARB ||
+ internalFormat == GL_ALPHA32F_ARB) {
+ printf("Convert luminance float tex to int %d x %d\n", width, height);
+ return GL_ALPHA;
+ }
+ /*
+ else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
+ internalFormat = GL_RGBA;
+ }
+ */
+ else {
+ return internalFormat;
+ }
+#else
+ return internalFormat;
+#endif
+}
+
+
+/**
+ * Choose the actual hardware format for a texture image.
+ * Try to use the same format as the previous image level when possible.
+ * Otherwise, ask the driver for the best format.
+ * It's important to try to choose a consistant format for all levels
+ * for efficient texture memory layout/allocation. In particular, this
+ * comes up during automatic mipmap generation.
+ */
+gl_format
+_mesa_choose_texture_format(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLenum internalFormat, GLenum format, GLenum type)
+{
+ gl_format f;
+
+ /* see if we've already chosen a format for the previous level */
+ if (level > 0) {
+ struct gl_texture_image *prevImage =
+ _mesa_select_tex_image(ctx, texObj, target, level - 1);
+ /* See if the prev level is defined and has an internal format which
+ * matches the new internal format.
+ */
+ if (prevImage &&
+ prevImage->Width > 0 &&
+ prevImage->InternalFormat == internalFormat) {
+ /* use the same format */
+ ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
+ return prevImage->TexFormat;
+ }
+ }
+
+ /* choose format from scratch */
+ f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
+ ASSERT(f != MESA_FORMAT_NONE);
+ return f;
+}
+
+
+/**
+ * Common code to implement all the glTexImage1D/2D/3D functions.
+ */
+static void
+teximage(struct gl_context *ctx, GLuint dims,
+ GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels)
+{
+ GLboolean error;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target), level,
+ _mesa_lookup_enum_by_nr(internalFormat),
+ width, height, depth, border,
+ _mesa_lookup_enum_by_nr(format),
+ _mesa_lookup_enum_by_nr(type), pixels);
+
+ internalFormat = override_internal_format(internalFormat, width, height);
+
+ /* target error checking */
+ if (!legal_teximage_target(ctx, dims, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)",
+ dims, _mesa_lookup_enum_by_nr(target));
+ return;
+ }
+
+ /* general error checking */
+ error = texture_error_check(ctx, dims, target, level, internalFormat,
+ format, type, width, height, depth, border);
+
+ if (_mesa_is_proxy_texture(target)) {
+ /* Proxy texture: just clear or set state depending on error checking */
+ struct gl_texture_image *texImage =
+ _mesa_get_proxy_tex_image(ctx, target, level);
+
+ if (error) {
+ /* when error, clear all proxy texture image parameters */
+ if (texImage)
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* no error, set the tex image parameters */
+ struct gl_texture_object *texObj =
+ _mesa_get_current_tex_object(ctx, target);
+ gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
+ target, level,
+ internalFormat,
+ format, type);
+
+ if (legal_texture_size(ctx, texFormat, width, height, depth)) {
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height,
+ depth, border, internalFormat,
+ texFormat);
+ }
+ else if (texImage) {
+ clear_teximage_fields(texImage);
+ }
+ }
+ }
+ else {
+ /* non-proxy target */
+ const GLuint face = _mesa_tex_target_to_face(target);
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+
+ if (error) {
+ return; /* error was recorded */
+ }
+
+ if (ctx->NewState & _NEW_PIXEL)
+ _mesa_update_state(ctx);
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
+ }
+ else {
+ gl_format texFormat;
+
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
+
+ ASSERT(texImage->Data == NULL);
+ texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
+ internalFormat, format,
+ type);
+
+ if (legal_texture_size(ctx, texFormat, width, height, depth)) {
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ width, height, depth,
+ border, internalFormat, texFormat);
+
+ /* Give the texture to the driver. <pixels> may be null. */
+ ASSERT(ctx->Driver.TexImage3D);
+ switch (dims) {
+ case 1:
+ ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
+ width, border, format,
+ type, pixels, &ctx->Unpack, texObj,
+ texImage);
+ break;
+ case 2:
+ ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
+ width, height, border, format,
+ type, pixels, &ctx->Unpack, texObj,
+ texImage);
+ break;
+ case 3:
+ ctx->Driver.TexImage3D(ctx, target, level, internalFormat,
+ width, height, depth, border, format,
+ type, pixels, &ctx->Unpack, texObj,
+ texImage);
+ break;
+ default:
+ _mesa_problem(ctx, "invalid dims=%u in teximage()", dims);
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->_Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
+ }
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+ }
+}
+
+
+/*
+ * Called from the API. Note that width includes the border.
+ */
+void GLAPIENTRY
+_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLint border, GLenum format,
+ GLenum type, const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ teximage(ctx, 1, target, level, internalFormat, width, 1, 1,
+ border, format, type, pixels);
+}
+
+
+void GLAPIENTRY
+_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLint border,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ teximage(ctx, 2, target, level, internalFormat, width, height, 1,
+ border, format, type, pixels);
+}
+
+
+/*
+ * Called by the API or display list executor.
+ * Note that width and height include the border.
+ */
+void GLAPIENTRY
+_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ teximage(ctx, 3, target, level, internalFormat, width, height, depth,
+ border, format, type, pixels);
+}
+
+
+void GLAPIENTRY
+_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
+ depth, border, format, type, pixels);
+}
+
+
+#if FEATURE_OES_EGL_image
+void GLAPIENTRY
+_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (!ctx->Extensions.OES_EGL_image) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glEGLImageTargetTexture2DOES(unsupported)");
+ return;
+ }
+
+ if (target != GL_TEXTURE_2D) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glEGLImageTargetTexture2D(target=%d)", target);
+ return;
+ }
+
+ if (ctx->NewState & _NEW_PIXEL)
+ _mesa_update_state(ctx);
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ _mesa_lock_texture(ctx, texObj);
+
+ texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
+ } else {
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
+
+ ASSERT(texImage->Data == NULL);
+ ctx->Driver.EGLImageTargetTexture2D(ctx, target,
+ texObj, texImage, image);
+
+ /* state update */
+ texObj->_Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ _mesa_unlock_texture(ctx, texObj);
+
+}
+#endif
+
+
+
+/**
+ * Implement all the glTexSubImage1/2/3D() functions.
+ */
+static void
+texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, const GLvoid *pixels )
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target), level,
+ xoffset, yoffset, zoffset, width, height, depth,
+ _mesa_lookup_enum_by_nr(format),
+ _mesa_lookup_enum_by_nr(type), pixels);
+
+ /* check target (proxies not allowed) */
+ if (!legal_texsubimage_target(ctx, dims, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
+ dims, _mesa_lookup_enum_by_nr(target));
+ return;
+ }
+
+ if (ctx->NewState & _NEW_PIXEL)
+ _mesa_update_state(ctx);
+
+ if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset,
+ width, height, depth, format, type)) {
+ return; /* error was detected */
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (subtexture_error_check2(ctx, dims, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, texImage)) {
+ /* error was recorded */
+ }
+ else if (width > 0 && height > 0 && depth > 0) {
+ /* If we have a border, offset=-1 is legal. Bias by border width. */
+ switch (dims) {
+ case 3:
+ zoffset += texImage->Border;
+ /* fall-through */
+ case 2:
+ yoffset += texImage->Border;
+ /* fall-through */
+ case 1:
+ xoffset += texImage->Border;
+ }
+
+ switch (dims) {
+ case 1:
+ ctx->Driver.TexSubImage1D(ctx, target, level,
+ xoffset, width,
+ format, type, pixels,
+ &ctx->Unpack, texObj, texImage );
+ break;
+ case 2:
+ ctx->Driver.TexSubImage2D(ctx, target, level,
+ xoffset, yoffset, width, height,
+ format, type, pixels,
+ &ctx->Unpack, texObj, texImage );
+ break;
+ case 3:
+ ctx->Driver.TexSubImage3D(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels,
+ &ctx->Unpack, texObj, texImage );
+ break;
+ default:
+ _mesa_problem(ctx, "unexpected dims in subteximage()");
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+void GLAPIENTRY
+_mesa_TexSubImage1D( GLenum target, GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ texsubimage(ctx, 1, target, level,
+ xoffset, 0, 0,
+ width, 1, 1,
+ format, type, pixels);
+}
+
+
+void GLAPIENTRY
+_mesa_TexSubImage2D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ texsubimage(ctx, 2, target, level,
+ xoffset, yoffset, 0,
+ width, height, 1,
+ format, type, pixels);
+}
+
+
+
+void GLAPIENTRY
+_mesa_TexSubImage3D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ texsubimage(ctx, 3, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels);
+}
+
+
+
+/**
+ * Implement the glCopyTexImage1/2D() functions.
+ */
+static void
+copyteximage(struct gl_context *ctx, GLuint dims,
+ GLenum target, GLint level, GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ const GLuint face = _mesa_tex_target_to_face(target);
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target), level,
+ _mesa_lookup_enum_by_nr(internalFormat),
+ x, y, width, height, border);
+
+ if (ctx->NewState & NEW_COPY_TEX_STATE)
+ _mesa_update_state(ctx);
+
+ if (copytexture_error_check(ctx, dims, target, level, internalFormat,
+ width, height, border))
+ return;
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
+ }
+ else {
+ /* choose actual hw format */
+ gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
+ target, level,
+ internalFormat,
+ GL_NONE, GL_NONE);
+
+ if (legal_texture_size(ctx, texFormat, width, height, 1)) {
+ GLint srcX = x, srcY = y, dstX = 0, dstY = 0;
+
+ /* Free old texture image */
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
+
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
+ border, internalFormat, texFormat);
+
+ /* Allocate texture memory (no pixel data yet) */
+ if (dims == 1) {
+ ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
+ width, border, GL_NONE, GL_NONE, NULL,
+ &ctx->Unpack, texObj, texImage);
+ }
+ else {
+ ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
+ width, height, border, GL_NONE, GL_NONE,
+ NULL, &ctx->Unpack, texObj, texImage);
+ }
+
+ if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
+ &width, &height)) {
+ if (dims == 1)
+ ctx->Driver.CopyTexSubImage1D(ctx, target, level, dstX,
+ srcX, srcY, width);
+
+ else
+ ctx->Driver.CopyTexSubImage2D(ctx, target, level, dstX, dstY,
+ srcX, srcY, width, height);
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->_Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else {
+ /* probably too large of image */
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
+ }
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexImage1D( GLenum target, GLint level,
+ GLenum internalFormat,
+ GLint x, GLint y,
+ GLsizei width, GLint border )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLint border )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copyteximage(ctx, 2, target, level, internalFormat,
+ x, y, width, height, border);
+}
+
+
+
+/**
+ * Implementation for glCopyTexSubImage1/2/3D() functions.
+ */
+static void
+copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target),
+ level, xoffset, yoffset, zoffset, x, y, width, height);
+
+ if (ctx->NewState & NEW_COPY_TEX_STATE)
+ _mesa_update_state(ctx);
+
+ if (copytexsubimage_error_check1(ctx, dims, target, level))
+ return;
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset,
+ zoffset, width, height, texImage)) {
+ /* error was recored */
+ }
+ else {
+ /* If we have a border, offset=-1 is legal. Bias by border width. */
+ switch (dims) {
+ case 3:
+ zoffset += texImage->Border;
+ /* fall-through */
+ case 2:
+ yoffset += texImage->Border;
+ /* fall-through */
+ case 1:
+ xoffset += texImage->Border;
+ }
+
+ if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
+ &width, &height)) {
+ switch (dims) {
+ case 1:
+ ctx->Driver.CopyTexSubImage1D(ctx, target, level,
+ xoffset, x, y, width);
+ break;
+ case 2:
+ ctx->Driver.CopyTexSubImage2D(ctx, target, level,
+ xoffset, yoffset,
+ x, y, width, height);
+ break;
+ case 3:
+ ctx->Driver.CopyTexSubImage3D(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ x, y, width, height);
+ break;
+ default:
+ _mesa_problem(ctx, "bad dims in copytexsubimage()");
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage1D( GLenum target, GLint level,
+ GLint xoffset, GLint x, GLint y, GLsizei width )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage2D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
+ width, height);
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage3D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
+ x, y, width, height);
+}
+
+
+
+
+/**********************************************************************/
+/****** Compressed Textures ******/
+/**********************************************************************/
+
+
+/**
+ * Return expected size of a compressed texture.
+ */
+static GLuint
+compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
+ GLenum glformat)
+{
+ gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
+ return _mesa_format_image_size(mesaFormat, width, height, depth);
+}
+
+
+/*
+ * Return compressed texture block size, in pixels.
+ */
+static void
+get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh)
+{
+ gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
+ _mesa_get_format_block_size(mesaFormat, bw, bh);
+}
+
+
+/**
+ * Error checking for glCompressedTexImage[123]D().
+ * \param reason returns reason for error, if any
+ * \return error code or GL_NO_ERROR.
+ */
+static GLenum
+compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
+ GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLsizei depth, GLint border,
+ GLsizei imageSize, char **reason)
+{
+ const GLenum proxyTarget = get_proxy_target(target);
+ const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
+ GLint expectedSize;
+
+ *reason = ""; /* no error */
+
+ /* check level */
+ if (level < 0 || level >= maxLevels) {
+ *reason = "level";
+ return GL_INVALID_VALUE;
+ }
+
+ if (!target_can_be_compressed(ctx, target, internalFormat)) {
+ *reason = "target";
+ return GL_INVALID_ENUM;
+ }
+
+ /* This will detect any invalid internalFormat value */
+ if (!_mesa_is_compressed_format(ctx, internalFormat)) {
+ *reason = "internalFormat";
+ return GL_INVALID_ENUM;
+ }
+
+ /* This should really never fail */
+ if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
+ *reason = "internalFormat";
+ return GL_INVALID_ENUM;
+ }
+
+ /* No compressed formats support borders at this time */
+ if (border != 0) {
+ *reason = "border != 0";
+ return GL_INVALID_VALUE;
+ }
+
+ /* For cube map, width must equal height */
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height) {
+ *reason = "width != height";
+ return GL_INVALID_VALUE;
+ }
+
+ /* check image size against compression block size */
+ {
+ gl_format texFormat =
+ ctx->Driver.ChooseTextureFormat(ctx, internalFormat,
+ GL_NONE, GL_NONE);
+ GLuint bw, bh;
+
+ _mesa_get_format_block_size(texFormat, &bw, &bh);
+ if ((width > bw && width % bw > 0) ||
+ (height > bh && height % bh > 0)) {
+ /*
+ * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
+ * generated [...] if any parameter combinations are not
+ * supported by the specific compressed internal format.
+ */
+ *reason = "invalid width or height for compression format";
+ return GL_INVALID_OPERATION;
+ }
+ }
+
+ /* check image sizes */
+ if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
+ internalFormat, GL_NONE, GL_NONE,
+ width, height, depth, border)) {
+ /* See error comment above */
+ *reason = "invalid width, height or format";
+ return GL_INVALID_OPERATION;
+ }
+
+ /* check image size in bytes */
+ expectedSize = compressed_tex_size(width, height, depth, internalFormat);
+ if (expectedSize != imageSize) {
+ /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
+ * if <imageSize> is not consistent with the format, dimensions, and
+ * contents of the specified image.
+ */
+ *reason = "imageSize inconsistant with width/height/format";
+ return GL_INVALID_VALUE;
+ }
+
+ return GL_NO_ERROR;
+}
+
+
+/**
+ * Error checking for glCompressedTexSubImage[123]D().
+ * \warning There are some bad assumptions here about the size of compressed
+ * texture tiles (multiple of 4) used to test the validity of the
+ * offset and size parameters.
+ * \return error code or GL_NO_ERROR.
+ */
+static GLenum
+compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLsizei imageSize)
+{
+ GLint expectedSize, maxLevels = 0, maxTextureSize;
+ GLuint bw, bh;
+ (void) zoffset;
+
+ if (dimensions == 1) {
+ /* 1D compressed textures not allowed */
+ return GL_INVALID_ENUM;
+ }
+ else if (dimensions == 2) {
+ if (target == GL_PROXY_TEXTURE_2D) {
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (target == GL_TEXTURE_2D) {
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return GL_INVALID_ENUM; /*target*/
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return GL_INVALID_ENUM; /*target*/
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else {
+ return GL_INVALID_ENUM; /*target*/
+ }
+ }
+ else if (dimensions == 3) {
+ /* 3D compressed textures not allowed */
+ return GL_INVALID_ENUM;
+ }
+
+ maxTextureSize = 1 << (maxLevels - 1);
+
+ /* this will catch any invalid compressed format token */
+ if (!_mesa_is_compressed_format(ctx, format))
+ return GL_INVALID_ENUM;
+
+ if (width < 1 || width > maxTextureSize)
+ return GL_INVALID_VALUE;
+
+ if ((height < 1 || height > maxTextureSize)
+ && dimensions > 1)
+ return GL_INVALID_VALUE;
+
+ if (level < 0 || level >= maxLevels)
+ return GL_INVALID_VALUE;
+
+ /*
+ * do checks which depend on compression block size
+ */
+ get_compressed_block_size(format, &bw, &bh);
+
+ if ((xoffset % bw != 0) || (yoffset % bh != 0))
+ return GL_INVALID_VALUE;
+
+ if ((width % bw != 0) && width != 2 && width != 1)
+ return GL_INVALID_VALUE;
+
+ if ((height % bh != 0) && height != 2 && height != 1)
+ return GL_INVALID_VALUE;
+
+ expectedSize = compressed_tex_size(width, height, depth, format);
+ if (expectedSize != imageSize)
+ return GL_INVALID_VALUE;
+
+ return GL_NO_ERROR;
+}
+
+
+/**
+ * Do second part of glCompressedTexSubImage error checking.
+ * \return GL_TRUE if error found, GL_FALSE otherwise.
+ */
+static GLboolean
+compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims,
+ GLsizei width, GLsizei height,
+ GLsizei depth, GLenum format,
+ struct gl_texture_image *texImage)
+{
+
+ if ((GLint) format != texImage->InternalFormat) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
+ return GL_TRUE;
+ }
+
+ if (((width == 1 || width == 2) &&
+ width != (GLsizei) texImage->Width) ||
+ (width > (GLsizei) texImage->Width)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(width=%d)", dims, width);
+ return GL_TRUE;
+ }
+
+ if (dims >= 2) {
+ if (((height == 1 || height == 2) &&
+ height != (GLsizei) texImage->Height) ||
+ (height > (GLsizei) texImage->Height)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(height=%d)", dims, height);
+ return GL_TRUE;
+ }
+ }
+
+ if (dims >= 3) {
+ if (((depth == 1 || depth == 2) &&
+ depth != (GLsizei) texImage->Depth) ||
+ (depth > (GLsizei) texImage->Depth)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(depth=%d)", dims, depth);
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Implementation of the glCompressedTexImage1/2/3D() functions.
+ */
+static void
+compressedteximage(struct gl_context *ctx, GLuint dims,
+ GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLsizei depth, GLint border,
+ GLsizei imageSize, const GLvoid *data)
+{
+ GLenum error;
+ char *reason = "";
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx,
+ "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target), level,
+ _mesa_lookup_enum_by_nr(internalFormat),
+ width, height, depth, border, imageSize, data);
+
+ /* check target */
+ if (!legal_teximage_target(ctx, dims, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)",
+ dims, _mesa_lookup_enum_by_nr(target));
+ return;
+ }
+
+ error = compressed_texture_error_check(ctx, dims, target, level,
+ internalFormat, width, height, depth,
+ border, imageSize, &reason);
+
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason);
+ return;
+ }
+
+#if FEATURE_ES
+ /* XXX this is kind of a hack */
+ if (dims == 2) {
+ switch (internalFormat) {
+ case GL_PALETTE4_RGB8_OES:
+ case GL_PALETTE4_RGBA8_OES:
+ case GL_PALETTE4_R5_G6_B5_OES:
+ case GL_PALETTE4_RGBA4_OES:
+ case GL_PALETTE4_RGB5_A1_OES:
+ case GL_PALETTE8_RGB8_OES:
+ case GL_PALETTE8_RGBA8_OES:
+ case GL_PALETTE8_R5_G6_B5_OES:
+ case GL_PALETTE8_RGBA4_OES:
+ case GL_PALETTE8_RGB5_A1_OES:
+ _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
+ width, height, imageSize, data);
+ return;
+ }
+ }
+#endif
+
+ if (_mesa_is_proxy_texture(target)) {
+ /* Proxy texture: just check for errors and update proxy state */
+ struct gl_texture_image *texImage;
+
+ if (!error) {
+ struct gl_texture_object *texObj =
+ _mesa_get_current_tex_object(ctx, target);
+ gl_format texFormat =
+ _mesa_choose_texture_format(ctx, texObj, target, level,
+ internalFormat, GL_NONE, GL_NONE);
+ if (!legal_texture_size(ctx, texFormat, width, height, depth)) {
+ error = GL_OUT_OF_MEMORY;
+ }
+ }
+
+ texImage = _mesa_get_proxy_tex_image(ctx, target, level);
+ if (texImage) {
+ if (error) {
+ /* if error, clear all proxy texture image parameters */
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* no error: store the teximage parameters */
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height,
+ depth, border, internalFormat,
+ MESA_FORMAT_NONE);
+ }
+ }
+ }
+ else {
+ /* non-proxy target */
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexImage%uD", dims);
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY,
+ "glCompressedTexImage%uD", dims);
+ }
+ else {
+ gl_format texFormat;
+
+ ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
+ ASSERT(texImage->Data == NULL);
+
+ texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
+ internalFormat, GL_NONE,
+ GL_NONE);
+
+ if (legal_texture_size(ctx, texFormat, width, height, depth)) {
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ width, height, depth,
+ border, internalFormat, texFormat);
+
+ switch (dims) {
+ case 1:
+ ASSERT(ctx->Driver.CompressedTexImage1D);
+ ctx->Driver.CompressedTexImage1D(ctx, target, level,
+ internalFormat,
+ width,
+ border, imageSize, data,
+ texObj, texImage);
+ break;
+ case 2:
+ ASSERT(ctx->Driver.CompressedTexImage2D);
+ ctx->Driver.CompressedTexImage2D(ctx, target, level,
+ internalFormat,
+ width, height,
+ border, imageSize, data,
+ texObj, texImage);
+ break;
+ case 3:
+ ASSERT(ctx->Driver.CompressedTexImage3D);
+ ctx->Driver.CompressedTexImage3D(ctx, target, level,
+ internalFormat,
+ width, height, depth,
+ border, imageSize, data,
+ texObj, texImage);
+ break;
+ default:
+ _mesa_problem(ctx, "bad dims in compressedteximage");
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ /* state update */
+ texObj->_Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY,
+ "glCompressedTexImage%uD", dims);
+ }
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage1DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLint border, GLsizei imageSize,
+ const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ compressedteximage(ctx, 1, target, level, internalFormat,
+ width, 1, 1, border, imageSize, data);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage2DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLint border, GLsizei imageSize,
+ const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ compressedteximage(ctx, 2, target, level, internalFormat,
+ width, height, 1, border, imageSize, data);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage3DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLsizei depth, GLint border,
+ GLsizei imageSize, const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ compressedteximage(ctx, 3, target, level, internalFormat,
+ width, height, depth, border, imageSize, data);
+}
+
+
+/**
+ * Common helper for glCompressedTexSubImage1/2/3D().
+ */
+static void
+compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLsizei imageSize, const GLvoid *data)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLenum error;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ error = compressed_subtexture_error_check(ctx, dims, target, level,
+ xoffset, 0, 0, /* pos */
+ width, height, depth, /* size */
+ format, imageSize);
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims);
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ assert(texImage);
+
+ if (compressed_subtexture_error_check2(ctx, dims, width, height, depth,
+ format, texImage)) {
+ /* error was recorded */
+ }
+ else if (width > 0 && height > 0 && depth > 0) {
+ switch (dims) {
+ case 1:
+ if (ctx->Driver.CompressedTexSubImage1D) {
+ ctx->Driver.CompressedTexSubImage1D(ctx, target, level,
+ xoffset, width,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ break;
+ case 2:
+ if (ctx->Driver.CompressedTexSubImage2D) {
+ ctx->Driver.CompressedTexSubImage2D(ctx, target, level,
+ xoffset, yoffset,
+ width, height,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ break;
+ case 3:
+ if (ctx->Driver.CompressedTexSubImage3D) {
+ ctx->Driver.CompressedTexSubImage3D(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ break;
+ default:
+ ;
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
+ GLsizei width, GLenum format,
+ GLsizei imageSize, const GLvoid *data)
+{
+ compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
+ format, imageSize, data);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
+ GLint yoffset, GLsizei width, GLsizei height,
+ GLenum format, GLsizei imageSize,
+ const GLvoid *data)
+{
+ compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
+ width, height, 1, format, imageSize, data);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
+ GLint yoffset, GLint zoffset, GLsizei width,
+ GLsizei height, GLsizei depth, GLenum format,
+ GLsizei imageSize, const GLvoid *data)
+{
+ compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
+ width, height, depth, format, imageSize, data);
+}
+
+
+/**
+ * Helper for glTexBuffer(). Check if internalFormat is legal. If so,
+ * return the basic data type and number of components for the format.
+ * \param return GL_TRUE if internalFormat is legal, GL_FALSE otherwise
+ */
+static GLboolean
+get_sized_format_info(const struct gl_context *ctx, GLenum internalFormat,
+ GLenum *datatype, GLuint *components)
+{
+ switch (internalFormat) {
+ case GL_ALPHA8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 1;
+ break;
+ case GL_ALPHA16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 1;
+ break;
+ case GL_ALPHA16F_ARB:
+ *datatype = GL_HALF_FLOAT;
+ *components = 1;
+ break;
+ case GL_ALPHA32F_ARB:
+ *datatype = GL_FLOAT;
+ *components = 1;
+ break;
+ case GL_ALPHA8I_EXT:
+ *datatype = GL_BYTE;
+ *components = 1;
+ break;
+ case GL_ALPHA16I_EXT:
+ *datatype = GL_SHORT;
+ *components = 1;
+ break;
+ case GL_ALPHA32I_EXT:
+ *datatype = GL_INT;
+ *components = 1;
+ break;
+ case GL_ALPHA8UI_EXT:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 1;
+ break;
+ case GL_ALPHA16UI_EXT:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 1;
+ break;
+ case GL_ALPHA32UI_EXT:
+ *datatype = GL_UNSIGNED_INT;
+ *components = 1;
+ break;
+ case GL_LUMINANCE8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 1;
+ break;
+ case GL_LUMINANCE16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 1;
+ break;
+ case GL_LUMINANCE16F_ARB:
+ *datatype = GL_HALF_FLOAT;
+ *components = 1;
+ break;
+ case GL_LUMINANCE32F_ARB:
+ *datatype = GL_FLOAT;
+ *components = 1;
+ break;
+ case GL_LUMINANCE8I_EXT:
+ *datatype = GL_BYTE;
+ *components = 1;
+ break;
+ case GL_LUMINANCE16I_EXT:
+ *datatype = GL_SHORT;
+ *components = 1;
+ break;
+ case GL_LUMINANCE32I_EXT:
+ *datatype = GL_INT;
+ *components = 1;
+ break;
+ case GL_LUMINANCE8UI_EXT:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 1;
+ break;
+ case GL_LUMINANCE16UI_EXT:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 1;
+ break;
+ case GL_LUMINANCE32UI_EXT:
+ *datatype = GL_UNSIGNED_INT;
+ *components = 1;
+ break;
+ case GL_LUMINANCE8_ALPHA8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 2;
+ break;
+ case GL_LUMINANCE16_ALPHA16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 2;
+ break;
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ *datatype = GL_HALF_FLOAT;
+ *components = 2;
+ break;
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ *datatype = GL_FLOAT;
+ *components = 2;
+ break;
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ *datatype = GL_BYTE;
+ *components = 2;
+ break;
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ *datatype = GL_SHORT;
+ *components = 2;
+ break;
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ *datatype = GL_INT;
+ *components = 2;
+ break;
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 2;
+ break;
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 2;
+ break;
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ *datatype = GL_UNSIGNED_INT;
+ *components = 2;
+ break;
+ case GL_INTENSITY8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 1;
+ break;
+ case GL_INTENSITY16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 1;
+ break;
+ case GL_INTENSITY16F_ARB:
+ *datatype = GL_HALF_FLOAT;
+ *components = 1;
+ break;
+ case GL_INTENSITY32F_ARB:
+ *datatype = GL_FLOAT;
+ *components = 1;
+ break;
+ case GL_INTENSITY8I_EXT:
+ *datatype = GL_BYTE;
+ *components = 1;
+ break;
+ case GL_INTENSITY16I_EXT:
+ *datatype = GL_SHORT;
+ *components = 1;
+ break;
+ case GL_INTENSITY32I_EXT:
+ *datatype = GL_INT;
+ *components = 1;
+ break;
+ case GL_INTENSITY8UI_EXT:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 1;
+ break;
+ case GL_INTENSITY16UI_EXT:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 1;
+ break;
+ case GL_INTENSITY32UI_EXT:
+ *datatype = GL_UNSIGNED_INT;
+ *components = 1;
+ break;
+ case GL_RGBA8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 4;
+ break;
+ case GL_RGBA16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 4;
+ break;
+ case GL_RGBA16F_ARB:
+ *datatype = GL_HALF_FLOAT;
+ *components = 4;
+ break;
+ case GL_RGBA32F_ARB:
+ *datatype = GL_FLOAT;
+ *components = 4;
+ break;
+ case GL_RGBA8I_EXT:
+ *datatype = GL_BYTE;
+ *components = 4;
+ break;
+ case GL_RGBA16I_EXT:
+ *datatype = GL_SHORT;
+ *components = 4;
+ break;
+ case GL_RGBA32I_EXT:
+ *datatype = GL_INT;
+ *components = 4;
+ break;
+ case GL_RGBA8UI_EXT:
+ *datatype = GL_UNSIGNED_BYTE;
+ *components = 4;
+ break;
+ case GL_RGBA16UI_EXT:
+ *datatype = GL_UNSIGNED_SHORT;
+ *components = 4;
+ break;
+ case GL_RGBA32UI_EXT:
+ *datatype = GL_UNSIGNED_INT;
+ *components = 4;
+ break;
+ default:
+ return GL_FALSE;
+ }
+
+ if (*datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
+ return GL_FALSE;
+
+ if (*datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
+
+
+/** GL_ARB_texture_buffer_object */
+void GLAPIENTRY
+_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
+{
+ struct gl_texture_object *texObj;
+ struct gl_buffer_object *bufObj;
+ GLenum dataType;
+ GLuint comps;
+
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (!ctx->Extensions.ARB_texture_buffer_object) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
+ return;
+ }
+
+ if (target != GL_TEXTURE_BUFFER_ARB) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
+ return;
+ }
+
+ if (!get_sized_format_info(ctx, internalFormat, &dataType, &comps)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
+ internalFormat);
+ return;
+ }
+
+ bufObj = _mesa_lookup_bufferobj(ctx, buffer);
+ if (buffer && !bufObj) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
+ texObj->BufferObjectFormat = internalFormat;
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}