From 8c74e7257ed453143c53086f884f6c6ff585379a Mon Sep 17 00:00:00 2001 From: marha Date: Tue, 8 Mar 2011 08:20:49 +0000 Subject: xkeyboard-config mesa git update 8 Mar 2011 --- mesalib/src/mesa/main/bufferobj.c | 1 + mesalib/src/mesa/main/drawpix.c | 2 - mesalib/src/mesa/main/fbobject.c | 36 +- mesalib/src/mesa/main/mtypes.h | 2 + mesalib/src/mesa/state_tracker/st_cb_fbo.c | 1286 +++++++++---------- mesalib/src/mesa/state_tracker/st_manager.c | 1845 ++++++++++++++------------- 6 files changed, 1601 insertions(+), 1571 deletions(-) (limited to 'mesalib/src') diff --git a/mesalib/src/mesa/main/bufferobj.c b/mesalib/src/mesa/main/bufferobj.c index 35d92616f..44072fbc5 100644 --- a/mesalib/src/mesa/main/bufferobj.c +++ b/mesalib/src/mesa/main/bufferobj.c @@ -558,6 +558,7 @@ void _mesa_init_buffer_objects( struct gl_context *ctx ) { memset(&DummyBufferObject, 0, sizeof(DummyBufferObject)); + _glthread_INIT_MUTEX(DummyBufferObject.Mutex); DummyBufferObject.RefCount = 1000*1000*1000; /* never delete */ _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, diff --git a/mesalib/src/mesa/main/drawpix.c b/mesalib/src/mesa/main/drawpix.c index 98e82ef85..fb86036a1 100644 --- a/mesalib/src/mesa/main/drawpix.c +++ b/mesalib/src/mesa/main/drawpix.c @@ -136,8 +136,6 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height, GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_finish(ctx); - if (MESA_VERBOSE & VERBOSE_API) _mesa_debug(ctx, "glCopyPixels(%d, %d, %d, %d, %s) // from %s to %s at %d, %d\n", diff --git a/mesalib/src/mesa/main/fbobject.c b/mesalib/src/mesa/main/fbobject.c index c242e568d..ffdd08425 100644 --- a/mesalib/src/mesa/main/fbobject.c +++ b/mesalib/src/mesa/main/fbobject.c @@ -384,6 +384,7 @@ _mesa_framebuffer_renderbuffer(struct gl_context *ctx, assert(att); _mesa_set_renderbuffer_attachment(ctx, att, rb); } + rb->AttachedAnytime = GL_TRUE; } else { _mesa_remove_attachment(ctx, att); @@ -1115,6 +1116,31 @@ _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat) } +/** + * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk(). + */ +static void +invalidate_rb(GLuint key, void *data, void *userData) +{ + struct gl_framebuffer *fb = (struct gl_framebuffer *) data; + struct gl_renderbuffer *rb = (struct gl_renderbuffer *) userData; + + /* If this is a user-created FBO */ + if (fb->Name) { + GLuint i; + for (i = 0; i < BUFFER_COUNT; i++) { + struct gl_renderbuffer_attachment *att = fb->Attachment + i; + if (att->Type == GL_RENDERBUFFER && + att->Renderbuffer == rb) { + /* Mark fb status as indeterminate to force re-validation */ + fb->_Status = 0; + return; + } + } + } +} + + /** sentinal value, see below */ #define NO_SAMPLES 1000 @@ -1207,12 +1233,10 @@ renderbuffer_storage(GLenum target, GLenum internalFormat, rb->NumSamples = 0; } - /* - test_framebuffer_completeness(ctx, fb); - */ - /* XXX if this renderbuffer is attached anywhere, invalidate attachment - * points??? - */ + /* Invalidate the framebuffers the renderbuffer is attached in. */ + if (rb->AttachedAnytime) { + _mesa_HashWalk(ctx->Shared->FrameBuffers, invalidate_rb, rb); + } } diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h index db3eba20c..49ecea59d 100644 --- a/mesalib/src/mesa/main/mtypes.h +++ b/mesalib/src/mesa/main/mtypes.h @@ -2376,6 +2376,8 @@ struct gl_renderbuffer GLenum DataType; /**< Type of values passed to the Get/Put functions */ GLvoid *Data; /**< This may not be used by some kinds of RBs */ + GLboolean AttachedAnytime; /**< TRUE if it was attached to a framebuffer */ + /* Used to wrap one renderbuffer around another: */ struct gl_renderbuffer *Wrapped; diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c index 7e124186c..ae49434ca 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c +++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c @@ -1,641 +1,645 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - -/** - * Framebuffer/renderbuffer functions. - * - * \author Brian Paul - */ - - -#include "main/imports.h" -#include "main/context.h" -#include "main/fbobject.h" -#include "main/framebuffer.h" -#include "main/macros.h" -#include "main/mfeatures.h" -#include "main/renderbuffer.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_screen.h" -#include "st_context.h" -#include "st_cb_fbo.h" -#include "st_cb_flush.h" -#include "st_format.h" -#include "st_texture.h" -#include "st_manager.h" - -#include "util/u_format.h" -#include "util/u_inlines.h" -#include "util/u_surface.h" - - -/** - * gl_renderbuffer::AllocStorage() - * This is called to allocate the original drawing surface, and - * during window resize. - */ -static GLboolean -st_renderbuffer_alloc_storage(struct gl_context * ctx, - struct gl_renderbuffer *rb, - GLenum internalFormat, - GLuint width, GLuint height) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = st->pipe->screen; - struct st_renderbuffer *strb = st_renderbuffer(rb); - enum pipe_format format; - struct pipe_surface surf_tmpl; - - if (strb->format != PIPE_FORMAT_NONE) - format = strb->format; - else - format = st_choose_renderbuffer_format(screen, internalFormat, - rb->NumSamples); - - /* init renderbuffer fields */ - strb->Base.Width = width; - strb->Base.Height = height; - strb->Base.Format = st_pipe_format_to_mesa_format(format); - strb->Base._BaseFormat = _mesa_base_fbo_format(ctx, internalFormat); - strb->Base.DataType = st_format_datatype(format); - - strb->defined = GL_FALSE; /* undefined contents now */ - - if (strb->software) { - size_t size; - - free(strb->data); - - assert(strb->format != PIPE_FORMAT_NONE); - - strb->stride = util_format_get_stride(strb->format, width); - size = util_format_get_2d_size(strb->format, strb->stride, height); - - strb->data = malloc(size); - - return strb->data != NULL; - } - else { - struct pipe_resource template; - - /* Free the old surface and texture - */ - pipe_surface_reference( &strb->surface, NULL ); - pipe_resource_reference( &strb->texture, NULL ); - pipe_sampler_view_reference(&strb->sampler_view, NULL); - - /* Setup new texture template. - */ - memset(&template, 0, sizeof(template)); - template.target = st->internal_target; - template.format = format; - template.width0 = width; - template.height0 = height; - template.depth0 = 1; - template.array_size = 1; - template.last_level = 0; - template.nr_samples = rb->NumSamples; - if (util_format_is_depth_or_stencil(format)) { - template.bind = PIPE_BIND_DEPTH_STENCIL; - } - else { - template.bind = (PIPE_BIND_DISPLAY_TARGET | - PIPE_BIND_RENDER_TARGET); - } - - strb->texture = screen->resource_create(screen, &template); - - if (!strb->texture) - return FALSE; - - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - u_surface_default_template(&surf_tmpl, strb->texture, template.bind); - strb->surface = pipe->create_surface(pipe, - strb->texture, - &surf_tmpl); - if (strb->surface) { - assert(strb->surface->texture); - assert(strb->surface->format); - assert(strb->surface->width == width); - assert(strb->surface->height == height); - } - - return strb->surface != NULL; - } -} - - -/** - * gl_renderbuffer::Delete() - */ -static void -st_renderbuffer_delete(struct gl_renderbuffer *rb) -{ - struct st_renderbuffer *strb = st_renderbuffer(rb); - ASSERT(strb); - pipe_surface_reference(&strb->surface, NULL); - pipe_resource_reference(&strb->texture, NULL); - pipe_sampler_view_reference(&strb->sampler_view, NULL); - free(strb->data); - free(strb); -} - - -/** - * gl_renderbuffer::GetPointer() - */ -static void * -null_get_pointer(struct gl_context * ctx, struct gl_renderbuffer *rb, - GLint x, GLint y) -{ - /* By returning NULL we force all software rendering to go through - * the span routines. - */ -#if 0 - assert(0); /* Should never get called with softpipe */ -#endif - return NULL; -} - - -/** - * Called via ctx->Driver.NewFramebuffer() - */ -static struct gl_framebuffer * -st_new_framebuffer(struct gl_context *ctx, GLuint name) -{ - /* XXX not sure we need to subclass gl_framebuffer for pipe */ - return _mesa_new_framebuffer(ctx, name); -} - - -/** - * Called via ctx->Driver.NewRenderbuffer() - */ -static struct gl_renderbuffer * -st_new_renderbuffer(struct gl_context *ctx, GLuint name) -{ - struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer); - if (strb) { - _mesa_init_renderbuffer(&strb->Base, name); - strb->Base.Delete = st_renderbuffer_delete; - strb->Base.AllocStorage = st_renderbuffer_alloc_storage; - strb->Base.GetPointer = null_get_pointer; - strb->format = PIPE_FORMAT_NONE; - return &strb->Base; - } - return NULL; -} - - -/** - * Allocate a renderbuffer for a an on-screen window (not a user-created - * renderbuffer). The window system code determines the format. - */ -struct gl_renderbuffer * -st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw) -{ - struct st_renderbuffer *strb; - - strb = ST_CALLOC_STRUCT(st_renderbuffer); - if (!strb) { - _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer"); - return NULL; - } - - _mesa_init_renderbuffer(&strb->Base, 0); - strb->Base.ClassID = 0x4242; /* just a unique value */ - strb->Base.NumSamples = samples; - strb->Base.Format = st_pipe_format_to_mesa_format(format); - strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format); - strb->Base.DataType = st_format_datatype(format); - strb->format = format; - strb->software = sw; - - switch (format) { - case PIPE_FORMAT_R8G8B8A8_UNORM: - case PIPE_FORMAT_B8G8R8A8_UNORM: - case PIPE_FORMAT_A8R8G8B8_UNORM: - case PIPE_FORMAT_R8G8B8X8_UNORM: - case PIPE_FORMAT_B8G8R8X8_UNORM: - case PIPE_FORMAT_X8R8G8B8_UNORM: - case PIPE_FORMAT_B5G5R5A1_UNORM: - case PIPE_FORMAT_B4G4R4A4_UNORM: - case PIPE_FORMAT_B5G6R5_UNORM: - strb->Base.InternalFormat = GL_RGBA; - break; - case PIPE_FORMAT_Z16_UNORM: - strb->Base.InternalFormat = GL_DEPTH_COMPONENT16; - break; - case PIPE_FORMAT_Z32_UNORM: - strb->Base.InternalFormat = GL_DEPTH_COMPONENT32; - break; - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - case PIPE_FORMAT_Z24X8_UNORM: - case PIPE_FORMAT_X8Z24_UNORM: - strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT; - break; - case PIPE_FORMAT_S8_USCALED: - strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT; - break; - case PIPE_FORMAT_R16G16B16A16_SNORM: - strb->Base.InternalFormat = GL_RGBA16; - break; - case PIPE_FORMAT_R8_UNORM: - strb->Base.InternalFormat = GL_R8; - break; - case PIPE_FORMAT_R8G8_UNORM: - strb->Base.InternalFormat = GL_RG8; - break; - case PIPE_FORMAT_R16_UNORM: - strb->Base.InternalFormat = GL_R16; - break; - case PIPE_FORMAT_R16G16_UNORM: - strb->Base.InternalFormat = GL_RG16; - break; - default: - _mesa_problem(NULL, - "Unexpected format in st_new_renderbuffer_fb"); - free(strb); - return NULL; - } - - /* st-specific methods */ - strb->Base.Delete = st_renderbuffer_delete; - strb->Base.AllocStorage = st_renderbuffer_alloc_storage; - strb->Base.GetPointer = null_get_pointer; - - /* surface is allocated in st_renderbuffer_alloc_storage() */ - strb->surface = NULL; - - return &strb->Base; -} - - - - -/** - * Called via ctx->Driver.BindFramebufferEXT(). - */ -static void -st_bind_framebuffer(struct gl_context *ctx, GLenum target, - struct gl_framebuffer *fb, struct gl_framebuffer *fbread) -{ - -} - -/** - * Called by ctx->Driver.FramebufferRenderbuffer - */ -static void -st_framebuffer_renderbuffer(struct gl_context *ctx, - struct gl_framebuffer *fb, - GLenum attachment, - struct gl_renderbuffer *rb) -{ - /* XXX no need for derivation? */ - _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb); -} - - -/** - * Called by ctx->Driver.RenderTexture - */ -static void -st_render_texture(struct gl_context *ctx, - struct gl_framebuffer *fb, - struct gl_renderbuffer_attachment *att) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct st_renderbuffer *strb; - struct gl_renderbuffer *rb; - struct pipe_resource *pt = st_get_texobj_resource(att->Texture); - struct st_texture_object *stObj; - const struct gl_texture_image *texImage; - struct pipe_surface surf_tmpl; - - /* When would this fail? Perhaps assert? */ - if (!pt) - return; - - /* get pointer to texture image we're rendeing to */ - texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel]; - - /* create new renderbuffer which wraps the texture image */ - rb = st_new_renderbuffer(ctx, 0); - if (!rb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()"); - return; - } - - _mesa_reference_renderbuffer(&att->Renderbuffer, rb); - assert(rb->RefCount == 1); - rb->AllocStorage = NULL; /* should not get called */ - strb = st_renderbuffer(rb); - - assert(strb->Base.RefCount > 0); - - /* get the texture for the texture object */ - stObj = st_texture_object(att->Texture); - - /* point renderbuffer at texobject */ - strb->rtt = stObj; - strb->rtt_level = att->TextureLevel; - strb->rtt_face = att->CubeMapFace; - strb->rtt_slice = att->Zoffset; - - rb->Width = texImage->Width2; - rb->Height = texImage->Height2; - rb->_BaseFormat = texImage->_BaseFormat; - /*printf("***** render to texture level %d: %d x %d\n", att->TextureLevel, rb->Width, rb->Height);*/ - - /*printf("***** pipe texture %d x %d\n", pt->width0, pt->height0);*/ - - pipe_resource_reference( &strb->texture, pt ); - - pipe_surface_reference(&strb->surface, NULL); - - pipe_sampler_view_reference(&strb->sampler_view, - st_get_texture_sampler_view(stObj, pipe)); - - assert(strb->rtt_level <= strb->texture->last_level); - - /* new surface for rendering into the texture */ - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - surf_tmpl.format = ctx->Color.sRGBEnabled ? strb->texture->format : util_format_linear(strb->texture->format); - surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; - surf_tmpl.u.tex.level = strb->rtt_level; - surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice; - surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice; - strb->surface = pipe->create_surface(pipe, - strb->texture, - &surf_tmpl); - - strb->format = pt->format; - - strb->Base.Format = st_pipe_format_to_mesa_format(pt->format); - strb->Base.DataType = st_format_datatype(pt->format); - - /* - printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p %d x %d\n", - att->Texture, pt, strb->surface, rb->Width, rb->Height); - */ - - /* Invalidate buffer state so that the pipe's framebuffer state - * gets updated. - * That's where the new renderbuffer (which we just created) gets - * passed to the pipe as a (color/depth) render target. - */ - st_invalidate_state(ctx, _NEW_BUFFERS); -} - - -/** - * Called via ctx->Driver.FinishRenderTexture. - */ -static void -st_finish_render_texture(struct gl_context *ctx, - struct gl_renderbuffer_attachment *att) -{ - struct st_context *st = st_context(ctx); - struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer); - - if (!strb) - return; - - st_flush(st, PIPE_FLUSH_RENDER_CACHE, NULL); - - strb->rtt = NULL; - - /* - printf("FINISH RENDER TO TEXTURE surf=%p\n", strb->surface); - */ - - /* restore previous framebuffer state */ - st_invalidate_state(ctx, _NEW_BUFFERS); -} - - -/** - * Validate a renderbuffer attachment for a particular set of bindings. - */ -static GLboolean -st_validate_attachment(struct gl_context *ctx, - struct pipe_screen *screen, - const struct gl_renderbuffer_attachment *att, - unsigned bindings) -{ - const struct st_texture_object *stObj = st_texture_object(att->Texture); - enum pipe_format format; - gl_format texFormat; - - /* Only validate texture attachments for now, since - * st_renderbuffer_alloc_storage makes sure that - * the format is supported. - */ - if (att->Type != GL_TEXTURE) - return GL_TRUE; - - if (!stObj) - return GL_FALSE; - - format = stObj->pt->format; - texFormat = - stObj->base.Image[att->CubeMapFace][att->TextureLevel]->TexFormat; - - /* If the encoding is sRGB and sRGB rendering cannot be enabled, - * check for linear format support instead. - * Later when we create a surface, we change the format to a linear one. */ - if (!ctx->Const.sRGBCapable && - _mesa_get_format_color_encoding(texFormat) == GL_SRGB) { - const gl_format linearFormat = _mesa_get_srgb_format_linear(texFormat); - format = st_mesa_format_to_pipe_format(linearFormat); - } - - return screen->is_format_supported(screen, format, - PIPE_TEXTURE_2D, - stObj->pt->nr_samples, bindings, 0); -} - - -/** - * Check if two renderbuffer attachments name a combined depth/stencil - * renderbuffer. - */ -GLboolean -st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth, - const struct gl_renderbuffer_attachment *stencil) -{ - assert(depth && stencil); - - if (depth->Type == stencil->Type) { - if (depth->Type == GL_RENDERBUFFER_EXT && - depth->Renderbuffer == stencil->Renderbuffer) - return GL_TRUE; - - if (depth->Type == GL_TEXTURE && - depth->Texture == stencil->Texture) - return GL_TRUE; - } - - return GL_FALSE; -} - - -/** - * Check that the framebuffer configuration is valid in terms of what - * the driver can support. - * - * For Gallium we only supports combined Z+stencil, not separate buffers. - */ -static void -st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - struct st_context *st = st_context(ctx); - struct pipe_screen *screen = st->pipe->screen; - const struct gl_renderbuffer_attachment *depth = - &fb->Attachment[BUFFER_DEPTH]; - const struct gl_renderbuffer_attachment *stencil = - &fb->Attachment[BUFFER_STENCIL]; - GLuint i; - - if (depth->Type && stencil->Type && depth->Type != stencil->Type) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (depth->Type == GL_RENDERBUFFER_EXT && - stencil->Type == GL_RENDERBUFFER_EXT && - depth->Renderbuffer != stencil->Renderbuffer) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (depth->Type == GL_TEXTURE && - stencil->Type == GL_TEXTURE && - depth->Texture != stencil->Texture) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - - if (!st_validate_attachment(ctx, - screen, - depth, - PIPE_BIND_DEPTH_STENCIL)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (!st_validate_attachment(ctx, - screen, - stencil, - PIPE_BIND_DEPTH_STENCIL)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - for (i = 0; i < ctx->Const.MaxColorAttachments; i++) { - if (!st_validate_attachment(ctx, - screen, - &fb->Attachment[BUFFER_COLOR0 + i], - PIPE_BIND_RENDER_TARGET)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - } -} - - -/** - * Called via glDrawBuffer. - */ -static void -st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers) -{ - struct st_context *st = st_context(ctx); - struct gl_framebuffer *fb = ctx->DrawBuffer; - GLuint i; - - (void) count; - (void) buffers; - - /* add the renderbuffers on demand */ - for (i = 0; i < fb->_NumColorDrawBuffers; i++) { - gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i]; - st_manager_add_color_renderbuffer(st, fb, idx); - } -} - - -/** - * Called via glReadBuffer. - */ -static void -st_ReadBuffer(struct gl_context *ctx, GLenum buffer) -{ - struct st_context *st = st_context(ctx); - struct gl_framebuffer *fb = ctx->ReadBuffer; - - (void) buffer; - - /* add the renderbuffer on demand */ - st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex); -} - - -void st_init_fbo_functions(struct dd_function_table *functions) -{ -#if FEATURE_EXT_framebuffer_object - functions->NewFramebuffer = st_new_framebuffer; - functions->NewRenderbuffer = st_new_renderbuffer; - functions->BindFramebuffer = st_bind_framebuffer; - functions->FramebufferRenderbuffer = st_framebuffer_renderbuffer; - functions->RenderTexture = st_render_texture; - functions->FinishRenderTexture = st_finish_render_texture; - functions->ValidateFramebuffer = st_validate_framebuffer; -#endif - /* no longer needed by core Mesa, drivers handle resizes... - functions->ResizeBuffers = st_resize_buffers; - */ - - functions->DrawBuffers = st_DrawBuffers; - functions->ReadBuffer = st_ReadBuffer; -} - -/* XXX unused ? */ -struct pipe_sampler_view * -st_get_renderbuffer_sampler_view(struct st_renderbuffer *rb, - struct pipe_context *pipe) -{ - if (!rb->sampler_view) { - rb->sampler_view = st_create_texture_sampler_view(pipe, rb->texture); - } - - return rb->sampler_view; -} +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * Framebuffer/renderbuffer functions. + * + * \author Brian Paul + */ + + +#include "main/imports.h" +#include "main/context.h" +#include "main/fbobject.h" +#include "main/framebuffer.h" +#include "main/macros.h" +#include "main/mfeatures.h" +#include "main/renderbuffer.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" +#include "st_context.h" +#include "st_cb_fbo.h" +#include "st_cb_flush.h" +#include "st_format.h" +#include "st_texture.h" +#include "st_manager.h" + +#include "util/u_format.h" +#include "util/u_inlines.h" +#include "util/u_surface.h" + + +/** + * gl_renderbuffer::AllocStorage() + * This is called to allocate the original drawing surface, and + * during window resize. + */ +static GLboolean +st_renderbuffer_alloc_storage(struct gl_context * ctx, + struct gl_renderbuffer *rb, + GLenum internalFormat, + GLuint width, GLuint height) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct pipe_screen *screen = st->pipe->screen; + struct st_renderbuffer *strb = st_renderbuffer(rb); + enum pipe_format format; + struct pipe_surface surf_tmpl; + + if (strb->format != PIPE_FORMAT_NONE) + format = strb->format; + else + format = st_choose_renderbuffer_format(screen, internalFormat, + rb->NumSamples); + + if (format == PIPE_FORMAT_NONE) { + return FALSE; + } + + /* init renderbuffer fields */ + strb->Base.Width = width; + strb->Base.Height = height; + strb->Base.Format = st_pipe_format_to_mesa_format(format); + strb->Base._BaseFormat = _mesa_base_fbo_format(ctx, internalFormat); + strb->Base.DataType = st_format_datatype(format); + + strb->defined = GL_FALSE; /* undefined contents now */ + + if (strb->software) { + size_t size; + + free(strb->data); + + assert(strb->format != PIPE_FORMAT_NONE); + + strb->stride = util_format_get_stride(strb->format, width); + size = util_format_get_2d_size(strb->format, strb->stride, height); + + strb->data = malloc(size); + + return strb->data != NULL; + } + else { + struct pipe_resource template; + + /* Free the old surface and texture + */ + pipe_surface_reference( &strb->surface, NULL ); + pipe_resource_reference( &strb->texture, NULL ); + pipe_sampler_view_reference(&strb->sampler_view, NULL); + + /* Setup new texture template. + */ + memset(&template, 0, sizeof(template)); + template.target = st->internal_target; + template.format = format; + template.width0 = width; + template.height0 = height; + template.depth0 = 1; + template.array_size = 1; + template.last_level = 0; + template.nr_samples = rb->NumSamples; + if (util_format_is_depth_or_stencil(format)) { + template.bind = PIPE_BIND_DEPTH_STENCIL; + } + else { + template.bind = (PIPE_BIND_DISPLAY_TARGET | + PIPE_BIND_RENDER_TARGET); + } + + strb->texture = screen->resource_create(screen, &template); + + if (!strb->texture) + return FALSE; + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + u_surface_default_template(&surf_tmpl, strb->texture, template.bind); + strb->surface = pipe->create_surface(pipe, + strb->texture, + &surf_tmpl); + if (strb->surface) { + assert(strb->surface->texture); + assert(strb->surface->format); + assert(strb->surface->width == width); + assert(strb->surface->height == height); + } + + return strb->surface != NULL; + } +} + + +/** + * gl_renderbuffer::Delete() + */ +static void +st_renderbuffer_delete(struct gl_renderbuffer *rb) +{ + struct st_renderbuffer *strb = st_renderbuffer(rb); + ASSERT(strb); + pipe_surface_reference(&strb->surface, NULL); + pipe_resource_reference(&strb->texture, NULL); + pipe_sampler_view_reference(&strb->sampler_view, NULL); + free(strb->data); + free(strb); +} + + +/** + * gl_renderbuffer::GetPointer() + */ +static void * +null_get_pointer(struct gl_context * ctx, struct gl_renderbuffer *rb, + GLint x, GLint y) +{ + /* By returning NULL we force all software rendering to go through + * the span routines. + */ +#if 0 + assert(0); /* Should never get called with softpipe */ +#endif + return NULL; +} + + +/** + * Called via ctx->Driver.NewFramebuffer() + */ +static struct gl_framebuffer * +st_new_framebuffer(struct gl_context *ctx, GLuint name) +{ + /* XXX not sure we need to subclass gl_framebuffer for pipe */ + return _mesa_new_framebuffer(ctx, name); +} + + +/** + * Called via ctx->Driver.NewRenderbuffer() + */ +static struct gl_renderbuffer * +st_new_renderbuffer(struct gl_context *ctx, GLuint name) +{ + struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer); + if (strb) { + _mesa_init_renderbuffer(&strb->Base, name); + strb->Base.Delete = st_renderbuffer_delete; + strb->Base.AllocStorage = st_renderbuffer_alloc_storage; + strb->Base.GetPointer = null_get_pointer; + strb->format = PIPE_FORMAT_NONE; + return &strb->Base; + } + return NULL; +} + + +/** + * Allocate a renderbuffer for a an on-screen window (not a user-created + * renderbuffer). The window system code determines the format. + */ +struct gl_renderbuffer * +st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw) +{ + struct st_renderbuffer *strb; + + strb = ST_CALLOC_STRUCT(st_renderbuffer); + if (!strb) { + _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer"); + return NULL; + } + + _mesa_init_renderbuffer(&strb->Base, 0); + strb->Base.ClassID = 0x4242; /* just a unique value */ + strb->Base.NumSamples = samples; + strb->Base.Format = st_pipe_format_to_mesa_format(format); + strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format); + strb->Base.DataType = st_format_datatype(format); + strb->format = format; + strb->software = sw; + + switch (format) { + case PIPE_FORMAT_R8G8B8A8_UNORM: + case PIPE_FORMAT_B8G8R8A8_UNORM: + case PIPE_FORMAT_A8R8G8B8_UNORM: + case PIPE_FORMAT_R8G8B8X8_UNORM: + case PIPE_FORMAT_B8G8R8X8_UNORM: + case PIPE_FORMAT_X8R8G8B8_UNORM: + case PIPE_FORMAT_B5G5R5A1_UNORM: + case PIPE_FORMAT_B4G4R4A4_UNORM: + case PIPE_FORMAT_B5G6R5_UNORM: + strb->Base.InternalFormat = GL_RGBA; + break; + case PIPE_FORMAT_Z16_UNORM: + strb->Base.InternalFormat = GL_DEPTH_COMPONENT16; + break; + case PIPE_FORMAT_Z32_UNORM: + strb->Base.InternalFormat = GL_DEPTH_COMPONENT32; + break; + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + case PIPE_FORMAT_Z24X8_UNORM: + case PIPE_FORMAT_X8Z24_UNORM: + strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT; + break; + case PIPE_FORMAT_S8_USCALED: + strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT; + break; + case PIPE_FORMAT_R16G16B16A16_SNORM: + strb->Base.InternalFormat = GL_RGBA16; + break; + case PIPE_FORMAT_R8_UNORM: + strb->Base.InternalFormat = GL_R8; + break; + case PIPE_FORMAT_R8G8_UNORM: + strb->Base.InternalFormat = GL_RG8; + break; + case PIPE_FORMAT_R16_UNORM: + strb->Base.InternalFormat = GL_R16; + break; + case PIPE_FORMAT_R16G16_UNORM: + strb->Base.InternalFormat = GL_RG16; + break; + default: + _mesa_problem(NULL, + "Unexpected format in st_new_renderbuffer_fb"); + free(strb); + return NULL; + } + + /* st-specific methods */ + strb->Base.Delete = st_renderbuffer_delete; + strb->Base.AllocStorage = st_renderbuffer_alloc_storage; + strb->Base.GetPointer = null_get_pointer; + + /* surface is allocated in st_renderbuffer_alloc_storage() */ + strb->surface = NULL; + + return &strb->Base; +} + + + + +/** + * Called via ctx->Driver.BindFramebufferEXT(). + */ +static void +st_bind_framebuffer(struct gl_context *ctx, GLenum target, + struct gl_framebuffer *fb, struct gl_framebuffer *fbread) +{ + +} + +/** + * Called by ctx->Driver.FramebufferRenderbuffer + */ +static void +st_framebuffer_renderbuffer(struct gl_context *ctx, + struct gl_framebuffer *fb, + GLenum attachment, + struct gl_renderbuffer *rb) +{ + /* XXX no need for derivation? */ + _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb); +} + + +/** + * Called by ctx->Driver.RenderTexture + */ +static void +st_render_texture(struct gl_context *ctx, + struct gl_framebuffer *fb, + struct gl_renderbuffer_attachment *att) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct st_renderbuffer *strb; + struct gl_renderbuffer *rb; + struct pipe_resource *pt = st_get_texobj_resource(att->Texture); + struct st_texture_object *stObj; + const struct gl_texture_image *texImage; + struct pipe_surface surf_tmpl; + + /* When would this fail? Perhaps assert? */ + if (!pt) + return; + + /* get pointer to texture image we're rendeing to */ + texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel]; + + /* create new renderbuffer which wraps the texture image */ + rb = st_new_renderbuffer(ctx, 0); + if (!rb) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()"); + return; + } + + _mesa_reference_renderbuffer(&att->Renderbuffer, rb); + assert(rb->RefCount == 1); + rb->AllocStorage = NULL; /* should not get called */ + strb = st_renderbuffer(rb); + + assert(strb->Base.RefCount > 0); + + /* get the texture for the texture object */ + stObj = st_texture_object(att->Texture); + + /* point renderbuffer at texobject */ + strb->rtt = stObj; + strb->rtt_level = att->TextureLevel; + strb->rtt_face = att->CubeMapFace; + strb->rtt_slice = att->Zoffset; + + rb->Width = texImage->Width2; + rb->Height = texImage->Height2; + rb->_BaseFormat = texImage->_BaseFormat; + /*printf("***** render to texture level %d: %d x %d\n", att->TextureLevel, rb->Width, rb->Height);*/ + + /*printf("***** pipe texture %d x %d\n", pt->width0, pt->height0);*/ + + pipe_resource_reference( &strb->texture, pt ); + + pipe_surface_reference(&strb->surface, NULL); + + pipe_sampler_view_reference(&strb->sampler_view, + st_get_texture_sampler_view(stObj, pipe)); + + assert(strb->rtt_level <= strb->texture->last_level); + + /* new surface for rendering into the texture */ + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + surf_tmpl.format = ctx->Color.sRGBEnabled ? strb->texture->format : util_format_linear(strb->texture->format); + surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; + surf_tmpl.u.tex.level = strb->rtt_level; + surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice; + surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice; + strb->surface = pipe->create_surface(pipe, + strb->texture, + &surf_tmpl); + + strb->format = pt->format; + + strb->Base.Format = st_pipe_format_to_mesa_format(pt->format); + strb->Base.DataType = st_format_datatype(pt->format); + + /* + printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p %d x %d\n", + att->Texture, pt, strb->surface, rb->Width, rb->Height); + */ + + /* Invalidate buffer state so that the pipe's framebuffer state + * gets updated. + * That's where the new renderbuffer (which we just created) gets + * passed to the pipe as a (color/depth) render target. + */ + st_invalidate_state(ctx, _NEW_BUFFERS); +} + + +/** + * Called via ctx->Driver.FinishRenderTexture. + */ +static void +st_finish_render_texture(struct gl_context *ctx, + struct gl_renderbuffer_attachment *att) +{ + struct st_context *st = st_context(ctx); + struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer); + + if (!strb) + return; + + st_flush(st, PIPE_FLUSH_RENDER_CACHE, NULL); + + strb->rtt = NULL; + + /* + printf("FINISH RENDER TO TEXTURE surf=%p\n", strb->surface); + */ + + /* restore previous framebuffer state */ + st_invalidate_state(ctx, _NEW_BUFFERS); +} + + +/** + * Validate a renderbuffer attachment for a particular set of bindings. + */ +static GLboolean +st_validate_attachment(struct gl_context *ctx, + struct pipe_screen *screen, + const struct gl_renderbuffer_attachment *att, + unsigned bindings) +{ + const struct st_texture_object *stObj = st_texture_object(att->Texture); + enum pipe_format format; + gl_format texFormat; + + /* Only validate texture attachments for now, since + * st_renderbuffer_alloc_storage makes sure that + * the format is supported. + */ + if (att->Type != GL_TEXTURE) + return GL_TRUE; + + if (!stObj) + return GL_FALSE; + + format = stObj->pt->format; + texFormat = + stObj->base.Image[att->CubeMapFace][att->TextureLevel]->TexFormat; + + /* If the encoding is sRGB and sRGB rendering cannot be enabled, + * check for linear format support instead. + * Later when we create a surface, we change the format to a linear one. */ + if (!ctx->Const.sRGBCapable && + _mesa_get_format_color_encoding(texFormat) == GL_SRGB) { + const gl_format linearFormat = _mesa_get_srgb_format_linear(texFormat); + format = st_mesa_format_to_pipe_format(linearFormat); + } + + return screen->is_format_supported(screen, format, + PIPE_TEXTURE_2D, + stObj->pt->nr_samples, bindings, 0); +} + + +/** + * Check if two renderbuffer attachments name a combined depth/stencil + * renderbuffer. + */ +GLboolean +st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth, + const struct gl_renderbuffer_attachment *stencil) +{ + assert(depth && stencil); + + if (depth->Type == stencil->Type) { + if (depth->Type == GL_RENDERBUFFER_EXT && + depth->Renderbuffer == stencil->Renderbuffer) + return GL_TRUE; + + if (depth->Type == GL_TEXTURE && + depth->Texture == stencil->Texture) + return GL_TRUE; + } + + return GL_FALSE; +} + + +/** + * Check that the framebuffer configuration is valid in terms of what + * the driver can support. + * + * For Gallium we only supports combined Z+stencil, not separate buffers. + */ +static void +st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) +{ + struct st_context *st = st_context(ctx); + struct pipe_screen *screen = st->pipe->screen; + const struct gl_renderbuffer_attachment *depth = + &fb->Attachment[BUFFER_DEPTH]; + const struct gl_renderbuffer_attachment *stencil = + &fb->Attachment[BUFFER_STENCIL]; + GLuint i; + + if (depth->Type && stencil->Type && depth->Type != stencil->Type) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (depth->Type == GL_RENDERBUFFER_EXT && + stencil->Type == GL_RENDERBUFFER_EXT && + depth->Renderbuffer != stencil->Renderbuffer) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (depth->Type == GL_TEXTURE && + stencil->Type == GL_TEXTURE && + depth->Texture != stencil->Texture) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + + if (!st_validate_attachment(ctx, + screen, + depth, + PIPE_BIND_DEPTH_STENCIL)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (!st_validate_attachment(ctx, + screen, + stencil, + PIPE_BIND_DEPTH_STENCIL)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + for (i = 0; i < ctx->Const.MaxColorAttachments; i++) { + if (!st_validate_attachment(ctx, + screen, + &fb->Attachment[BUFFER_COLOR0 + i], + PIPE_BIND_RENDER_TARGET)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + } +} + + +/** + * Called via glDrawBuffer. + */ +static void +st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers) +{ + struct st_context *st = st_context(ctx); + struct gl_framebuffer *fb = ctx->DrawBuffer; + GLuint i; + + (void) count; + (void) buffers; + + /* add the renderbuffers on demand */ + for (i = 0; i < fb->_NumColorDrawBuffers; i++) { + gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i]; + st_manager_add_color_renderbuffer(st, fb, idx); + } +} + + +/** + * Called via glReadBuffer. + */ +static void +st_ReadBuffer(struct gl_context *ctx, GLenum buffer) +{ + struct st_context *st = st_context(ctx); + struct gl_framebuffer *fb = ctx->ReadBuffer; + + (void) buffer; + + /* add the renderbuffer on demand */ + st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex); +} + + +void st_init_fbo_functions(struct dd_function_table *functions) +{ +#if FEATURE_EXT_framebuffer_object + functions->NewFramebuffer = st_new_framebuffer; + functions->NewRenderbuffer = st_new_renderbuffer; + functions->BindFramebuffer = st_bind_framebuffer; + functions->FramebufferRenderbuffer = st_framebuffer_renderbuffer; + functions->RenderTexture = st_render_texture; + functions->FinishRenderTexture = st_finish_render_texture; + functions->ValidateFramebuffer = st_validate_framebuffer; +#endif + /* no longer needed by core Mesa, drivers handle resizes... + functions->ResizeBuffers = st_resize_buffers; + */ + + functions->DrawBuffers = st_DrawBuffers; + functions->ReadBuffer = st_ReadBuffer; +} + +/* XXX unused ? */ +struct pipe_sampler_view * +st_get_renderbuffer_sampler_view(struct st_renderbuffer *rb, + struct pipe_context *pipe) +{ + if (!rb->sampler_view) { + rb->sampler_view = st_create_texture_sampler_view(pipe, rb->texture); + } + + return rb->sampler_view; +} diff --git a/mesalib/src/mesa/state_tracker/st_manager.c b/mesalib/src/mesa/state_tracker/st_manager.c index 5684e9768..d85bcd4f7 100644 --- a/mesalib/src/mesa/state_tracker/st_manager.c +++ b/mesalib/src/mesa/state_tracker/st_manager.c @@ -1,922 +1,923 @@ -/* - * Mesa 3-D graphics library - * Version: 7.9 - * - * Copyright (C) 2010 LunarG Inc. - * - * 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 - * THE AUTHORS OR COPYRIGHT HOLDERS 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. - * - * Authors: - * Chia-I Wu - */ - -#include "state_tracker/st_gl_api.h" - -#include "pipe/p_context.h" -#include "pipe/p_screen.h" -#include "util/u_format.h" -#include "util/u_pointer.h" -#include "util/u_inlines.h" -#include "util/u_atomic.h" -#include "util/u_surface.h" - -#include "main/mtypes.h" -#include "main/context.h" -#include "main/mfeatures.h" -#include "main/texobj.h" -#include "main/teximage.h" -#include "main/texstate.h" -#include "main/framebuffer.h" -#include "main/fbobject.h" -#include "main/renderbuffer.h" -#include "main/version.h" -#include "st_texture.h" - -#include "st_context.h" -#include "st_format.h" -#include "st_cb_fbo.h" -#include "st_cb_flush.h" -#include "st_manager.h" - -/** - * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer. - * Return NULL if the struct gl_framebuffer is a user-created framebuffer. - * We'll only return non-null for window system framebuffers. - * Note that this function may fail. - */ -static INLINE struct st_framebuffer * -st_ws_framebuffer(struct gl_framebuffer *fb) -{ - /* FBO cannot be casted. See st_new_framebuffer */ - return (struct st_framebuffer *) ((fb && !fb->Name) ? fb : NULL); -} - -/** - * Map an attachment to a buffer index. - */ -static INLINE gl_buffer_index -attachment_to_buffer_index(enum st_attachment_type statt) -{ - gl_buffer_index index; - - switch (statt) { - case ST_ATTACHMENT_FRONT_LEFT: - index = BUFFER_FRONT_LEFT; - break; - case ST_ATTACHMENT_BACK_LEFT: - index = BUFFER_BACK_LEFT; - break; - case ST_ATTACHMENT_FRONT_RIGHT: - index = BUFFER_FRONT_RIGHT; - break; - case ST_ATTACHMENT_BACK_RIGHT: - index = BUFFER_BACK_RIGHT; - break; - case ST_ATTACHMENT_DEPTH_STENCIL: - index = BUFFER_DEPTH; - break; - case ST_ATTACHMENT_ACCUM: - index = BUFFER_ACCUM; - break; - case ST_ATTACHMENT_SAMPLE: - default: - index = BUFFER_COUNT; - break; - } - - return index; -} - -/** - * Map a buffer index to an attachment. - */ -static INLINE enum st_attachment_type -buffer_index_to_attachment(gl_buffer_index index) -{ - enum st_attachment_type statt; - - switch (index) { - case BUFFER_FRONT_LEFT: - statt = ST_ATTACHMENT_FRONT_LEFT; - break; - case BUFFER_BACK_LEFT: - statt = ST_ATTACHMENT_BACK_LEFT; - break; - case BUFFER_FRONT_RIGHT: - statt = ST_ATTACHMENT_FRONT_RIGHT; - break; - case BUFFER_BACK_RIGHT: - statt = ST_ATTACHMENT_BACK_RIGHT; - break; - case BUFFER_DEPTH: - statt = ST_ATTACHMENT_DEPTH_STENCIL; - break; - case BUFFER_ACCUM: - statt = ST_ATTACHMENT_ACCUM; - break; - default: - statt = ST_ATTACHMENT_INVALID; - break; - } - - return statt; -} - -/** - * Validate a framebuffer to make sure up-to-date pipe_textures are used. - */ -static void -st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st) -{ - struct pipe_context *pipe = st->pipe; - struct pipe_resource *textures[ST_ATTACHMENT_COUNT]; - uint width, height; - unsigned i; - boolean changed = FALSE; - - if (!p_atomic_read(&stfb->revalidate)) - return; - - /* validate the fb */ - if (!stfb->iface->validate(stfb->iface, stfb->statts, stfb->num_statts, textures)) - return; - - width = stfb->Base.Width; - height = stfb->Base.Height; - - for (i = 0; i < stfb->num_statts; i++) { - struct st_renderbuffer *strb; - struct pipe_surface *ps, surf_tmpl; - gl_buffer_index idx; - - if (!textures[i]) - continue; - - idx = attachment_to_buffer_index(stfb->statts[i]); - if (idx >= BUFFER_COUNT) { - pipe_resource_reference(&textures[i], NULL); - continue; - } - - strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); - assert(strb); - if (strb->texture == textures[i]) { - pipe_resource_reference(&textures[i], NULL); - continue; - } - - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - u_surface_default_template(&surf_tmpl, textures[i], - PIPE_BIND_RENDER_TARGET); - ps = pipe->create_surface(pipe, textures[i], &surf_tmpl); - if (ps) { - pipe_surface_reference(&strb->surface, ps); - pipe_resource_reference(&strb->texture, ps->texture); - /* ownership transfered */ - pipe_surface_reference(&ps, NULL); - - changed = TRUE; - - strb->Base.Width = strb->surface->width; - strb->Base.Height = strb->surface->height; - - width = strb->Base.Width; - height = strb->Base.Height; - } - - pipe_resource_reference(&textures[i], NULL); - } - - if (changed) { - st->dirty.st |= ST_NEW_FRAMEBUFFER; - _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height); - - assert(stfb->Base.Width == width); - assert(stfb->Base.Height == height); - } - - p_atomic_set(&stfb->revalidate, FALSE); -} - -/** - * Update the attachments to validate by looping the existing renderbuffers. - */ -static void -st_framebuffer_update_attachments(struct st_framebuffer *stfb) -{ - gl_buffer_index idx; - - stfb->num_statts = 0; - for (idx = 0; idx < BUFFER_COUNT; idx++) { - struct st_renderbuffer *strb; - enum st_attachment_type statt; - - strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); - if (!strb || strb->software) - continue; - - statt = buffer_index_to_attachment(idx); - if (statt != ST_ATTACHMENT_INVALID && - st_visual_have_buffers(stfb->iface->visual, 1 << statt)) - stfb->statts[stfb->num_statts++] = statt; - } - - p_atomic_set(&stfb->revalidate, TRUE); -} - -/** - * Add a renderbuffer to the framebuffer. - */ -static boolean -st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb, - gl_buffer_index idx) -{ - struct gl_renderbuffer *rb; - enum pipe_format format; - int samples; - boolean sw; - - if (!stfb->iface) - return FALSE; - - /* do not distinguish depth/stencil buffers */ - if (idx == BUFFER_STENCIL) - idx = BUFFER_DEPTH; - - switch (idx) { - case BUFFER_DEPTH: - format = stfb->iface->visual->depth_stencil_format; - sw = FALSE; - break; - case BUFFER_ACCUM: - format = stfb->iface->visual->accum_format; - sw = TRUE; - break; - default: - format = stfb->iface->visual->color_format; - sw = FALSE; - break; - } - - if (format == PIPE_FORMAT_NONE) - return FALSE; - - samples = stfb->iface->visual->samples; - if (!samples) - samples = st_get_msaa(); - - rb = st_new_renderbuffer_fb(format, samples, sw); - if (!rb) - return FALSE; - - if (idx != BUFFER_DEPTH) { - _mesa_add_renderbuffer(&stfb->Base, idx, rb); - } - else { - if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) - _mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb); - if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) - _mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb); - } - - return TRUE; -} - -/** - * Intialize a struct gl_config from a visual. - */ -static void -st_visual_to_context_mode(const struct st_visual *visual, - struct gl_config *mode) -{ - memset(mode, 0, sizeof(*mode)); - - if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK)) - mode->doubleBufferMode = GL_TRUE; - if (st_visual_have_buffers(visual, - ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK)) - mode->stereoMode = GL_TRUE; - - if (visual->color_format != PIPE_FORMAT_NONE) { - mode->rgbMode = GL_TRUE; - - mode->redBits = - util_format_get_component_bits(visual->color_format, - UTIL_FORMAT_COLORSPACE_RGB, 0); - mode->greenBits = - util_format_get_component_bits(visual->color_format, - UTIL_FORMAT_COLORSPACE_RGB, 1); - mode->blueBits = - util_format_get_component_bits(visual->color_format, - UTIL_FORMAT_COLORSPACE_RGB, 2); - mode->alphaBits = - util_format_get_component_bits(visual->color_format, - UTIL_FORMAT_COLORSPACE_RGB, 3); - - mode->rgbBits = mode->redBits + - mode->greenBits + mode->blueBits + mode->alphaBits; - } - - if (visual->depth_stencil_format != PIPE_FORMAT_NONE) { - mode->depthBits = - util_format_get_component_bits(visual->depth_stencil_format, - UTIL_FORMAT_COLORSPACE_ZS, 0); - mode->stencilBits = - util_format_get_component_bits(visual->depth_stencil_format, - UTIL_FORMAT_COLORSPACE_ZS, 1); - - mode->haveDepthBuffer = mode->depthBits > 0; - mode->haveStencilBuffer = mode->stencilBits > 0; - } - - if (visual->accum_format != PIPE_FORMAT_NONE) { - mode->haveAccumBuffer = GL_TRUE; - - mode->accumRedBits = - util_format_get_component_bits(visual->accum_format, - UTIL_FORMAT_COLORSPACE_RGB, 0); - mode->accumGreenBits = - util_format_get_component_bits(visual->accum_format, - UTIL_FORMAT_COLORSPACE_RGB, 1); - mode->accumBlueBits = - util_format_get_component_bits(visual->accum_format, - UTIL_FORMAT_COLORSPACE_RGB, 2); - mode->accumAlphaBits = - util_format_get_component_bits(visual->accum_format, - UTIL_FORMAT_COLORSPACE_RGB, 3); - } - - if (visual->samples) { - mode->sampleBuffers = 1; - mode->samples = visual->samples; - } -} - -/** - * Determine the default draw or read buffer from a visual. - */ -static void -st_visual_to_default_buffer(const struct st_visual *visual, - GLenum *buffer, GLint *index) -{ - enum st_attachment_type statt; - GLenum buf; - gl_buffer_index idx; - - statt = visual->render_buffer; - /* do nothing if an invalid render buffer is specified */ - if (statt == ST_ATTACHMENT_INVALID || - !st_visual_have_buffers(visual, 1 << statt)) - return; - - switch (statt) { - case ST_ATTACHMENT_FRONT_LEFT: - buf = GL_FRONT_LEFT; - idx = BUFFER_FRONT_LEFT; - break; - case ST_ATTACHMENT_BACK_LEFT: - buf = GL_BACK_LEFT; - idx = BUFFER_BACK_LEFT; - break; - case ST_ATTACHMENT_FRONT_RIGHT: - buf = GL_FRONT_RIGHT; - idx = BUFFER_FRONT_RIGHT; - break; - case ST_ATTACHMENT_BACK_RIGHT: - buf = GL_BACK_RIGHT; - idx = BUFFER_BACK_RIGHT; - break; - default: - buf = GL_NONE; - idx = BUFFER_COUNT; - break; - } - - if (buf != GL_NONE) { - if (buffer) - *buffer = buf; - if (index) - *index = idx; - } -} - -/** - * Create a framebuffer from a manager interface. - */ -static struct st_framebuffer * -st_framebuffer_create(struct st_framebuffer_iface *stfbi) -{ - struct st_framebuffer *stfb; - struct gl_config mode; - gl_buffer_index idx; - - if (!stfbi) - return NULL; - - stfb = CALLOC_STRUCT(st_framebuffer); - if (!stfb) - return NULL; - - st_visual_to_context_mode(stfbi->visual, &mode); - _mesa_initialize_window_framebuffer(&stfb->Base, &mode); - - /* modify the draw/read buffers of the fb */ - st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorDrawBuffer[0], - &stfb->Base._ColorDrawBufferIndexes[0]); - st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorReadBuffer, - &stfb->Base._ColorReadBufferIndex); - - stfb->iface = stfbi; - - /* add the color buffer */ - idx = stfb->Base._ColorDrawBufferIndexes[0]; - if (!st_framebuffer_add_renderbuffer(stfb, idx)) { - FREE(stfb); - return NULL; - } - - st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH); - st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM); - - st_framebuffer_update_attachments(stfb); - - stfb->Base.Initialized = GL_TRUE; - - return stfb; -} - -/** - * Reference a framebuffer. - */ -static void -st_framebuffer_reference(struct st_framebuffer **ptr, - struct st_framebuffer *stfb) -{ - struct gl_framebuffer *fb = &stfb->Base; - _mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb); -} - -static void -st_context_notify_invalid_framebuffer(struct st_context_iface *stctxi, - struct st_framebuffer_iface *stfbi) -{ - struct st_context *st = (struct st_context *) stctxi; - struct st_framebuffer *stfb; - - /* either draw or read winsys fb */ - stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); - if (!stfb || stfb->iface != stfbi) - stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); - - if (stfb && stfb->iface == stfbi) { - p_atomic_set(&stfb->revalidate, TRUE); - } - else { - /* This function is probably getting called when we've detected a - * change in a window's size but the currently bound context is - * not bound to that window. - * If the st_framebuffer_iface structure had a pointer to the - * corresponding st_framebuffer we'd be able to handle this. - */ - } -} - -static void -st_context_flush(struct st_context_iface *stctxi, unsigned flags, - struct pipe_fence_handle **fence) -{ - struct st_context *st = (struct st_context *) stctxi; - st_flush(st, flags, fence); - if (flags & PIPE_FLUSH_RENDER_CACHE) - st_manager_flush_frontbuffer(st); -} - -static boolean -st_context_teximage(struct st_context_iface *stctxi, - enum st_texture_type target, - int level, enum pipe_format internal_format, - struct pipe_resource *tex, boolean mipmap) -{ - struct st_context *st = (struct st_context *) stctxi; - struct gl_context *ctx = st->ctx; - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - struct st_texture_object *stObj; - struct st_texture_image *stImage; - GLenum internalFormat; - GLuint width, height, depth; - - switch (target) { - case ST_TEXTURE_1D: - target = GL_TEXTURE_1D; - break; - case ST_TEXTURE_2D: - target = GL_TEXTURE_2D; - break; - case ST_TEXTURE_3D: - target = GL_TEXTURE_3D; - break; - case ST_TEXTURE_RECT: - target = GL_TEXTURE_RECTANGLE_ARB; - break; - default: - return FALSE; - break; - } - - texObj = _mesa_select_tex_object(ctx, texUnit, target); - _mesa_lock_texture(ctx, texObj); - - stObj = st_texture_object(texObj); - /* switch to surface based */ - if (!stObj->surface_based) { - _mesa_clear_texture_object(ctx, texObj); - stObj->surface_based = GL_TRUE; - } - - texImage = _mesa_get_tex_image(ctx, texObj, target, level); - stImage = st_texture_image(texImage); - if (tex) { - gl_format texFormat; - - /* - * XXX When internal_format and tex->format differ, st_finalize_texture - * needs to allocate a new texture with internal_format and copy the - * texture here into the new one. It will result in surface_copy being - * called on surfaces whose formats differ. - * - * To avoid that, internal_format is (wrongly) ignored here. A sane fix - * is to use a sampler view. - */ - if (!st_sampler_compat_formats(tex->format, internal_format)) - internal_format = tex->format; - - if (util_format_get_component_bits(internal_format, - UTIL_FORMAT_COLORSPACE_RGB, 3) > 0) - internalFormat = GL_RGBA; - else - internalFormat = GL_RGB; - - texFormat = st_ChooseTextureFormat(ctx, internalFormat, - GL_RGBA, GL_UNSIGNED_BYTE); - - _mesa_init_teximage_fields(ctx, target, texImage, - tex->width0, tex->height0, 1, 0, - internalFormat, texFormat); - - width = tex->width0; - height = tex->height0; - depth = tex->depth0; - - /* grow the image size until we hit level = 0 */ - while (level > 0) { - if (width != 1) - width <<= 1; - if (height != 1) - height <<= 1; - if (depth != 1) - depth <<= 1; - level--; - } - } - else { - _mesa_clear_texture_image(ctx, texImage); - width = height = depth = 0; - } - - pipe_resource_reference(&stImage->pt, tex); - stObj->width0 = width; - stObj->height0 = height; - stObj->depth0 = depth; - - _mesa_dirty_texobj(ctx, texObj, GL_TRUE); - _mesa_unlock_texture(ctx, texObj); - - return TRUE; -} - -static void -st_context_copy(struct st_context_iface *stctxi, - struct st_context_iface *stsrci, unsigned mask) -{ - struct st_context *st = (struct st_context *) stctxi; - struct st_context *src = (struct st_context *) stsrci; - - _mesa_copy_context(src->ctx, st->ctx, mask); -} - -static boolean -st_context_share(struct st_context_iface *stctxi, - struct st_context_iface *stsrci) -{ - struct st_context *st = (struct st_context *) stctxi; - struct st_context *src = (struct st_context *) stsrci; - - return _mesa_share_state(st->ctx, src->ctx); -} - -static void -st_context_destroy(struct st_context_iface *stctxi) -{ - struct st_context *st = (struct st_context *) stctxi; - st_destroy_context(st); -} - -static struct st_context_iface * -st_api_create_context(struct st_api *stapi, struct st_manager *smapi, - const struct st_context_attribs *attribs, - struct st_context_iface *shared_stctxi) -{ - struct st_context *shared_ctx = (struct st_context *) shared_stctxi; - struct st_context *st; - struct pipe_context *pipe; - struct gl_config mode; - gl_api api; - - if (!(stapi->profile_mask & (1 << attribs->profile))) - return NULL; - - switch (attribs->profile) { - case ST_PROFILE_DEFAULT: - api = API_OPENGL; - break; - case ST_PROFILE_OPENGL_ES1: - api = API_OPENGLES; - break; - case ST_PROFILE_OPENGL_ES2: - api = API_OPENGLES2; - break; - case ST_PROFILE_OPENGL_CORE: - default: - return NULL; - break; - } - - pipe = smapi->screen->context_create(smapi->screen, NULL); - if (!pipe) - return NULL; - - st_visual_to_context_mode(&attribs->visual, &mode); - st = st_create_context(api, pipe, &mode, shared_ctx); - if (!st) { - pipe->destroy(pipe); - return NULL; - } - - /* need to perform version check */ - if (attribs->major > 1 || attribs->minor > 0) { - _mesa_compute_version(st->ctx); - - if (st->ctx->VersionMajor < attribs->major || - st->ctx->VersionMajor < attribs->minor) { - st_destroy_context(st); - return NULL; - } - } - - st->invalidate_on_gl_viewport = - smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE); - - st->iface.destroy = st_context_destroy; - st->iface.notify_invalid_framebuffer = - st_context_notify_invalid_framebuffer; - st->iface.flush = st_context_flush; - st->iface.teximage = st_context_teximage; - st->iface.copy = st_context_copy; - st->iface.share = st_context_share; - st->iface.st_context_private = (void *) smapi; - - return &st->iface; -} - -static boolean -st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi, - struct st_framebuffer_iface *stdrawi, - struct st_framebuffer_iface *streadi) -{ - struct st_context *st = (struct st_context *) stctxi; - struct st_framebuffer *stdraw, *stread, *stfb; - boolean ret; - - _glapi_check_multithread(); - - if (st) { - /* reuse/create the draw fb */ - stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); - if (stfb && stfb->iface == stdrawi) { - stdraw = NULL; - st_framebuffer_reference(&stdraw, stfb); - } - else { - stdraw = st_framebuffer_create(stdrawi); - } - - /* reuse/create the read fb */ - stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); - if (!stfb || stfb->iface != streadi) - stfb = stdraw; - if (stfb && stfb->iface == streadi) { - stread = NULL; - st_framebuffer_reference(&stread, stfb); - } - else { - stread = st_framebuffer_create(streadi); - } - - if (stdraw && stread) { - st_framebuffer_validate(stdraw, st); - if (stread != stdraw) - st_framebuffer_validate(stread, st); - - /* modify the draw/read buffers of the context */ - if (stdraw->iface) { - st_visual_to_default_buffer(stdraw->iface->visual, - &st->ctx->Color.DrawBuffer[0], NULL); - } - if (stread->iface) { - st_visual_to_default_buffer(stread->iface->visual, - &st->ctx->Pixel.ReadBuffer, NULL); - } - - ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base); - } - else { - struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer(); - ret = _mesa_make_current(st->ctx, incomplete, incomplete); - } - - st_framebuffer_reference(&stdraw, NULL); - st_framebuffer_reference(&stread, NULL); - } - else { - ret = _mesa_make_current(NULL, NULL, NULL); - } - - return ret; -} - -static struct st_context_iface * -st_api_get_current(struct st_api *stapi) -{ - GET_CURRENT_CONTEXT(ctx); - struct st_context *st = (ctx) ? ctx->st : NULL; - - return (st) ? &st->iface : NULL; -} - -static st_proc_t -st_api_get_proc_address(struct st_api *stapi, const char *procname) -{ - return (st_proc_t) _glapi_get_proc_address(procname); -} - -static void -st_api_destroy(struct st_api *stapi) -{ -} - -/** - * Flush the front buffer if the current context renders to the front buffer. - */ -void -st_manager_flush_frontbuffer(struct st_context *st) -{ - struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer); - struct st_renderbuffer *strb = NULL; - - if (stfb) - strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer); - if (!strb) - return; - - /* never a dummy fb */ - assert(stfb->iface); - stfb->iface->flush_front(stfb->iface, ST_ATTACHMENT_FRONT_LEFT); -} - -/** - * Return the surface of an EGLImage. - * FIXME: I think this should operate on resources, not surfaces - */ -struct pipe_surface * -st_manager_get_egl_image_surface(struct st_context *st, - void *eglimg, unsigned usage) -{ - struct st_manager *smapi = - (struct st_manager *) st->iface.st_context_private; - struct st_egl_image stimg; - struct pipe_surface *ps, surf_tmpl; - - if (!smapi || !smapi->get_egl_image) - return NULL; - - memset(&stimg, 0, sizeof(stimg)); - if (!smapi->get_egl_image(smapi, eglimg, &stimg)) - return NULL; - - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - surf_tmpl.format = stimg.texture->format; - surf_tmpl.usage = usage; - surf_tmpl.u.tex.level = stimg.level; - surf_tmpl.u.tex.first_layer = stimg.layer; - surf_tmpl.u.tex.last_layer = stimg.layer; - ps = st->pipe->create_surface(st->pipe, stimg.texture, &surf_tmpl); - pipe_resource_reference(&stimg.texture, NULL); - - return ps; -} - -/** - * Re-validate the framebuffers. - */ -void -st_manager_validate_framebuffers(struct st_context *st) -{ - struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer); - struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer); - - if (stdraw) - st_framebuffer_validate(stdraw, st); - if (stread && stread != stdraw) - st_framebuffer_validate(stread, st); -} - -/** - * Add a color renderbuffer on demand. - */ -boolean -st_manager_add_color_renderbuffer(struct st_context *st, - struct gl_framebuffer *fb, - gl_buffer_index idx) -{ - struct st_framebuffer *stfb = st_ws_framebuffer(fb); - - /* FBO */ - if (!stfb) - return FALSE; - - if (stfb->Base.Attachment[idx].Renderbuffer) - return TRUE; - - switch (idx) { - case BUFFER_FRONT_LEFT: - case BUFFER_BACK_LEFT: - case BUFFER_FRONT_RIGHT: - case BUFFER_BACK_RIGHT: - break; - default: - return FALSE; - break; - } - - if (!st_framebuffer_add_renderbuffer(stfb, idx)) - return FALSE; - - st_framebuffer_update_attachments(stfb); - st_invalidate_state(st->ctx, _NEW_BUFFERS); - - return TRUE; -} - -static const struct st_api st_gl_api = { - "Mesa " MESA_VERSION_STRING, - ST_API_OPENGL, -#if FEATURE_GL - ST_PROFILE_DEFAULT_MASK | -#endif -#if FEATURE_ES1 - ST_PROFILE_OPENGL_ES1_MASK | -#endif -#if FEATURE_ES2 - ST_PROFILE_OPENGL_ES2_MASK | -#endif - 0, - st_api_destroy, - st_api_get_proc_address, - st_api_create_context, - st_api_make_current, - st_api_get_current, -}; - -struct st_api * -st_gl_api_create(void) -{ - return (struct st_api *) &st_gl_api; -} +/* + * Mesa 3-D graphics library + * Version: 7.9 + * + * Copyright (C) 2010 LunarG Inc. + * + * 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 + * THE AUTHORS OR COPYRIGHT HOLDERS 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. + * + * Authors: + * Chia-I Wu + */ + +#include "state_tracker/st_gl_api.h" + +#include "pipe/p_context.h" +#include "pipe/p_screen.h" +#include "util/u_format.h" +#include "util/u_pointer.h" +#include "util/u_inlines.h" +#include "util/u_atomic.h" +#include "util/u_surface.h" + +#include "main/mtypes.h" +#include "main/context.h" +#include "main/mfeatures.h" +#include "main/texobj.h" +#include "main/teximage.h" +#include "main/texstate.h" +#include "main/framebuffer.h" +#include "main/fbobject.h" +#include "main/renderbuffer.h" +#include "main/version.h" +#include "st_texture.h" + +#include "st_context.h" +#include "st_format.h" +#include "st_cb_fbo.h" +#include "st_cb_flush.h" +#include "st_manager.h" + +/** + * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer. + * Return NULL if the struct gl_framebuffer is a user-created framebuffer. + * We'll only return non-null for window system framebuffers. + * Note that this function may fail. + */ +static INLINE struct st_framebuffer * +st_ws_framebuffer(struct gl_framebuffer *fb) +{ + /* FBO cannot be casted. See st_new_framebuffer */ + return (struct st_framebuffer *) ((fb && !fb->Name) ? fb : NULL); +} + +/** + * Map an attachment to a buffer index. + */ +static INLINE gl_buffer_index +attachment_to_buffer_index(enum st_attachment_type statt) +{ + gl_buffer_index index; + + switch (statt) { + case ST_ATTACHMENT_FRONT_LEFT: + index = BUFFER_FRONT_LEFT; + break; + case ST_ATTACHMENT_BACK_LEFT: + index = BUFFER_BACK_LEFT; + break; + case ST_ATTACHMENT_FRONT_RIGHT: + index = BUFFER_FRONT_RIGHT; + break; + case ST_ATTACHMENT_BACK_RIGHT: + index = BUFFER_BACK_RIGHT; + break; + case ST_ATTACHMENT_DEPTH_STENCIL: + index = BUFFER_DEPTH; + break; + case ST_ATTACHMENT_ACCUM: + index = BUFFER_ACCUM; + break; + case ST_ATTACHMENT_SAMPLE: + default: + index = BUFFER_COUNT; + break; + } + + return index; +} + +/** + * Map a buffer index to an attachment. + */ +static INLINE enum st_attachment_type +buffer_index_to_attachment(gl_buffer_index index) +{ + enum st_attachment_type statt; + + switch (index) { + case BUFFER_FRONT_LEFT: + statt = ST_ATTACHMENT_FRONT_LEFT; + break; + case BUFFER_BACK_LEFT: + statt = ST_ATTACHMENT_BACK_LEFT; + break; + case BUFFER_FRONT_RIGHT: + statt = ST_ATTACHMENT_FRONT_RIGHT; + break; + case BUFFER_BACK_RIGHT: + statt = ST_ATTACHMENT_BACK_RIGHT; + break; + case BUFFER_DEPTH: + statt = ST_ATTACHMENT_DEPTH_STENCIL; + break; + case BUFFER_ACCUM: + statt = ST_ATTACHMENT_ACCUM; + break; + default: + statt = ST_ATTACHMENT_INVALID; + break; + } + + return statt; +} + +/** + * Validate a framebuffer to make sure up-to-date pipe_textures are used. + */ +static void +st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_resource *textures[ST_ATTACHMENT_COUNT]; + uint width, height; + unsigned i; + boolean changed = FALSE; + + if (!p_atomic_read(&stfb->revalidate)) + return; + + /* validate the fb */ + if (!stfb->iface->validate(stfb->iface, stfb->statts, stfb->num_statts, textures)) + return; + + width = stfb->Base.Width; + height = stfb->Base.Height; + + for (i = 0; i < stfb->num_statts; i++) { + struct st_renderbuffer *strb; + struct pipe_surface *ps, surf_tmpl; + gl_buffer_index idx; + + if (!textures[i]) + continue; + + idx = attachment_to_buffer_index(stfb->statts[i]); + if (idx >= BUFFER_COUNT) { + pipe_resource_reference(&textures[i], NULL); + continue; + } + + strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); + assert(strb); + if (strb->texture == textures[i]) { + pipe_resource_reference(&textures[i], NULL); + continue; + } + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + u_surface_default_template(&surf_tmpl, textures[i], + PIPE_BIND_RENDER_TARGET); + ps = pipe->create_surface(pipe, textures[i], &surf_tmpl); + if (ps) { + pipe_surface_reference(&strb->surface, ps); + pipe_resource_reference(&strb->texture, ps->texture); + /* ownership transfered */ + pipe_surface_reference(&ps, NULL); + + changed = TRUE; + + strb->Base.Width = strb->surface->width; + strb->Base.Height = strb->surface->height; + + width = strb->Base.Width; + height = strb->Base.Height; + } + + pipe_resource_reference(&textures[i], NULL); + } + + if (changed) { + st->dirty.st |= ST_NEW_FRAMEBUFFER; + _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height); + + assert(stfb->Base.Width == width); + assert(stfb->Base.Height == height); + } + + p_atomic_set(&stfb->revalidate, FALSE); +} + +/** + * Update the attachments to validate by looping the existing renderbuffers. + */ +static void +st_framebuffer_update_attachments(struct st_framebuffer *stfb) +{ + gl_buffer_index idx; + + stfb->num_statts = 0; + for (idx = 0; idx < BUFFER_COUNT; idx++) { + struct st_renderbuffer *strb; + enum st_attachment_type statt; + + strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); + if (!strb || strb->software) + continue; + + statt = buffer_index_to_attachment(idx); + if (statt != ST_ATTACHMENT_INVALID && + st_visual_have_buffers(stfb->iface->visual, 1 << statt)) + stfb->statts[stfb->num_statts++] = statt; + } + + p_atomic_set(&stfb->revalidate, TRUE); +} + +/** + * Add a renderbuffer to the framebuffer. + */ +static boolean +st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb, + gl_buffer_index idx) +{ + struct gl_renderbuffer *rb; + enum pipe_format format; + int samples; + boolean sw; + + if (!stfb->iface) + return FALSE; + + /* do not distinguish depth/stencil buffers */ + if (idx == BUFFER_STENCIL) + idx = BUFFER_DEPTH; + + switch (idx) { + case BUFFER_DEPTH: + format = stfb->iface->visual->depth_stencil_format; + sw = FALSE; + break; + case BUFFER_ACCUM: + format = stfb->iface->visual->accum_format; + sw = TRUE; + break; + default: + format = stfb->iface->visual->color_format; + sw = FALSE; + break; + } + + if (format == PIPE_FORMAT_NONE) + return FALSE; + + samples = stfb->iface->visual->samples; + if (!samples) + samples = st_get_msaa(); + + rb = st_new_renderbuffer_fb(format, samples, sw); + if (!rb) + return FALSE; + + if (idx != BUFFER_DEPTH) { + _mesa_add_renderbuffer(&stfb->Base, idx, rb); + } + else { + if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) + _mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb); + if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) + _mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb); + } + + return TRUE; +} + +/** + * Intialize a struct gl_config from a visual. + */ +static void +st_visual_to_context_mode(const struct st_visual *visual, + struct gl_config *mode) +{ + memset(mode, 0, sizeof(*mode)); + + if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK)) + mode->doubleBufferMode = GL_TRUE; + if (st_visual_have_buffers(visual, + ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK)) + mode->stereoMode = GL_TRUE; + + if (visual->color_format != PIPE_FORMAT_NONE) { + mode->rgbMode = GL_TRUE; + + mode->redBits = + util_format_get_component_bits(visual->color_format, + UTIL_FORMAT_COLORSPACE_RGB, 0); + mode->greenBits = + util_format_get_component_bits(visual->color_format, + UTIL_FORMAT_COLORSPACE_RGB, 1); + mode->blueBits = + util_format_get_component_bits(visual->color_format, + UTIL_FORMAT_COLORSPACE_RGB, 2); + mode->alphaBits = + util_format_get_component_bits(visual->color_format, + UTIL_FORMAT_COLORSPACE_RGB, 3); + + mode->rgbBits = mode->redBits + + mode->greenBits + mode->blueBits + mode->alphaBits; + } + + if (visual->depth_stencil_format != PIPE_FORMAT_NONE) { + mode->depthBits = + util_format_get_component_bits(visual->depth_stencil_format, + UTIL_FORMAT_COLORSPACE_ZS, 0); + mode->stencilBits = + util_format_get_component_bits(visual->depth_stencil_format, + UTIL_FORMAT_COLORSPACE_ZS, 1); + + mode->haveDepthBuffer = mode->depthBits > 0; + mode->haveStencilBuffer = mode->stencilBits > 0; + } + + if (visual->accum_format != PIPE_FORMAT_NONE) { + mode->haveAccumBuffer = GL_TRUE; + + mode->accumRedBits = + util_format_get_component_bits(visual->accum_format, + UTIL_FORMAT_COLORSPACE_RGB, 0); + mode->accumGreenBits = + util_format_get_component_bits(visual->accum_format, + UTIL_FORMAT_COLORSPACE_RGB, 1); + mode->accumBlueBits = + util_format_get_component_bits(visual->accum_format, + UTIL_FORMAT_COLORSPACE_RGB, 2); + mode->accumAlphaBits = + util_format_get_component_bits(visual->accum_format, + UTIL_FORMAT_COLORSPACE_RGB, 3); + } + + if (visual->samples) { + mode->sampleBuffers = 1; + mode->samples = visual->samples; + } +} + +/** + * Determine the default draw or read buffer from a visual. + */ +static void +st_visual_to_default_buffer(const struct st_visual *visual, + GLenum *buffer, GLint *index) +{ + enum st_attachment_type statt; + GLenum buf; + gl_buffer_index idx; + + statt = visual->render_buffer; + /* do nothing if an invalid render buffer is specified */ + if (statt == ST_ATTACHMENT_INVALID || + !st_visual_have_buffers(visual, 1 << statt)) + return; + + switch (statt) { + case ST_ATTACHMENT_FRONT_LEFT: + buf = GL_FRONT_LEFT; + idx = BUFFER_FRONT_LEFT; + break; + case ST_ATTACHMENT_BACK_LEFT: + buf = GL_BACK_LEFT; + idx = BUFFER_BACK_LEFT; + break; + case ST_ATTACHMENT_FRONT_RIGHT: + buf = GL_FRONT_RIGHT; + idx = BUFFER_FRONT_RIGHT; + break; + case ST_ATTACHMENT_BACK_RIGHT: + buf = GL_BACK_RIGHT; + idx = BUFFER_BACK_RIGHT; + break; + default: + buf = GL_NONE; + idx = BUFFER_COUNT; + break; + } + + if (buf != GL_NONE) { + if (buffer) + *buffer = buf; + if (index) + *index = idx; + } +} + +/** + * Create a framebuffer from a manager interface. + */ +static struct st_framebuffer * +st_framebuffer_create(struct st_framebuffer_iface *stfbi) +{ + struct st_framebuffer *stfb; + struct gl_config mode; + gl_buffer_index idx; + + if (!stfbi) + return NULL; + + stfb = CALLOC_STRUCT(st_framebuffer); + if (!stfb) + return NULL; + + st_visual_to_context_mode(stfbi->visual, &mode); + _mesa_initialize_window_framebuffer(&stfb->Base, &mode); + + /* modify the draw/read buffers of the fb */ + st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorDrawBuffer[0], + &stfb->Base._ColorDrawBufferIndexes[0]); + st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorReadBuffer, + &stfb->Base._ColorReadBufferIndex); + + stfb->iface = stfbi; + + /* add the color buffer */ + idx = stfb->Base._ColorDrawBufferIndexes[0]; + if (!st_framebuffer_add_renderbuffer(stfb, idx)) { + FREE(stfb); + return NULL; + } + + st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH); + st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM); + + st_framebuffer_update_attachments(stfb); + + stfb->Base.Initialized = GL_TRUE; + + return stfb; +} + +/** + * Reference a framebuffer. + */ +static void +st_framebuffer_reference(struct st_framebuffer **ptr, + struct st_framebuffer *stfb) +{ + struct gl_framebuffer *fb = &stfb->Base; + _mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb); +} + +static void +st_context_notify_invalid_framebuffer(struct st_context_iface *stctxi, + struct st_framebuffer_iface *stfbi) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_framebuffer *stfb; + + /* either draw or read winsys fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); + if (!stfb || stfb->iface != stfbi) + stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); + + if (stfb && stfb->iface == stfbi) { + p_atomic_set(&stfb->revalidate, TRUE); + } + else { + /* This function is probably getting called when we've detected a + * change in a window's size but the currently bound context is + * not bound to that window. + * If the st_framebuffer_iface structure had a pointer to the + * corresponding st_framebuffer we'd be able to handle this. + */ + } +} + +static void +st_context_flush(struct st_context_iface *stctxi, unsigned flags, + struct pipe_fence_handle **fence) +{ + struct st_context *st = (struct st_context *) stctxi; + st_flush(st, flags, fence); + if (flags & PIPE_FLUSH_RENDER_CACHE) + st_manager_flush_frontbuffer(st); +} + +static boolean +st_context_teximage(struct st_context_iface *stctxi, + enum st_texture_type target, + int level, enum pipe_format internal_format, + struct pipe_resource *tex, boolean mipmap) +{ + struct st_context *st = (struct st_context *) stctxi; + struct gl_context *ctx = st->ctx; + struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); + struct gl_texture_object *texObj; + struct gl_texture_image *texImage; + struct st_texture_object *stObj; + struct st_texture_image *stImage; + GLenum internalFormat; + GLuint width, height, depth; + + switch (target) { + case ST_TEXTURE_1D: + target = GL_TEXTURE_1D; + break; + case ST_TEXTURE_2D: + target = GL_TEXTURE_2D; + break; + case ST_TEXTURE_3D: + target = GL_TEXTURE_3D; + break; + case ST_TEXTURE_RECT: + target = GL_TEXTURE_RECTANGLE_ARB; + break; + default: + return FALSE; + break; + } + + texObj = _mesa_select_tex_object(ctx, texUnit, target); + _mesa_lock_texture(ctx, texObj); + + stObj = st_texture_object(texObj); + /* switch to surface based */ + if (!stObj->surface_based) { + _mesa_clear_texture_object(ctx, texObj); + stObj->surface_based = GL_TRUE; + } + + texImage = _mesa_get_tex_image(ctx, texObj, target, level); + stImage = st_texture_image(texImage); + if (tex) { + gl_format texFormat; + + /* + * XXX When internal_format and tex->format differ, st_finalize_texture + * needs to allocate a new texture with internal_format and copy the + * texture here into the new one. It will result in surface_copy being + * called on surfaces whose formats differ. + * + * To avoid that, internal_format is (wrongly) ignored here. A sane fix + * is to use a sampler view. + */ + if (!st_sampler_compat_formats(tex->format, internal_format)) + internal_format = tex->format; + + if (util_format_get_component_bits(internal_format, + UTIL_FORMAT_COLORSPACE_RGB, 3) > 0) + internalFormat = GL_RGBA; + else + internalFormat = GL_RGB; + + texFormat = st_ChooseTextureFormat(ctx, internalFormat, + GL_RGBA, GL_UNSIGNED_BYTE); + + _mesa_init_teximage_fields(ctx, target, texImage, + tex->width0, tex->height0, 1, 0, + internalFormat, texFormat); + + width = tex->width0; + height = tex->height0; + depth = tex->depth0; + + /* grow the image size until we hit level = 0 */ + while (level > 0) { + if (width != 1) + width <<= 1; + if (height != 1) + height <<= 1; + if (depth != 1) + depth <<= 1; + level--; + } + } + else { + _mesa_clear_texture_image(ctx, texImage); + width = height = depth = 0; + } + + pipe_resource_reference(&stImage->pt, tex); + stObj->width0 = width; + stObj->height0 = height; + stObj->depth0 = depth; + + _mesa_dirty_texobj(ctx, texObj, GL_TRUE); + _mesa_unlock_texture(ctx, texObj); + + return TRUE; +} + +static void +st_context_copy(struct st_context_iface *stctxi, + struct st_context_iface *stsrci, unsigned mask) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_context *src = (struct st_context *) stsrci; + + _mesa_copy_context(src->ctx, st->ctx, mask); +} + +static boolean +st_context_share(struct st_context_iface *stctxi, + struct st_context_iface *stsrci) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_context *src = (struct st_context *) stsrci; + + return _mesa_share_state(st->ctx, src->ctx); +} + +static void +st_context_destroy(struct st_context_iface *stctxi) +{ + struct st_context *st = (struct st_context *) stctxi; + st_destroy_context(st); +} + +static struct st_context_iface * +st_api_create_context(struct st_api *stapi, struct st_manager *smapi, + const struct st_context_attribs *attribs, + struct st_context_iface *shared_stctxi) +{ + struct st_context *shared_ctx = (struct st_context *) shared_stctxi; + struct st_context *st; + struct pipe_context *pipe; + struct gl_config mode; + gl_api api; + + if (!(stapi->profile_mask & (1 << attribs->profile))) + return NULL; + + switch (attribs->profile) { + case ST_PROFILE_DEFAULT: + api = API_OPENGL; + break; + case ST_PROFILE_OPENGL_ES1: + api = API_OPENGLES; + break; + case ST_PROFILE_OPENGL_ES2: + api = API_OPENGLES2; + break; + case ST_PROFILE_OPENGL_CORE: + default: + return NULL; + break; + } + + pipe = smapi->screen->context_create(smapi->screen, NULL); + if (!pipe) + return NULL; + + st_visual_to_context_mode(&attribs->visual, &mode); + st = st_create_context(api, pipe, &mode, shared_ctx); + if (!st) { + pipe->destroy(pipe); + return NULL; + } + + /* need to perform version check */ + if (attribs->major > 1 || attribs->minor > 0) { + _mesa_compute_version(st->ctx); + + /* is the actual version less than the requested version? */ + if (st->ctx->VersionMajor * 10 + st->ctx->VersionMinor < + attribs->major * 10 + attribs->minor) { + st_destroy_context(st); + return NULL; + } + } + + st->invalidate_on_gl_viewport = + smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE); + + st->iface.destroy = st_context_destroy; + st->iface.notify_invalid_framebuffer = + st_context_notify_invalid_framebuffer; + st->iface.flush = st_context_flush; + st->iface.teximage = st_context_teximage; + st->iface.copy = st_context_copy; + st->iface.share = st_context_share; + st->iface.st_context_private = (void *) smapi; + + return &st->iface; +} + +static boolean +st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi, + struct st_framebuffer_iface *stdrawi, + struct st_framebuffer_iface *streadi) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_framebuffer *stdraw, *stread, *stfb; + boolean ret; + + _glapi_check_multithread(); + + if (st) { + /* reuse/create the draw fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); + if (stfb && stfb->iface == stdrawi) { + stdraw = NULL; + st_framebuffer_reference(&stdraw, stfb); + } + else { + stdraw = st_framebuffer_create(stdrawi); + } + + /* reuse/create the read fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); + if (!stfb || stfb->iface != streadi) + stfb = stdraw; + if (stfb && stfb->iface == streadi) { + stread = NULL; + st_framebuffer_reference(&stread, stfb); + } + else { + stread = st_framebuffer_create(streadi); + } + + if (stdraw && stread) { + st_framebuffer_validate(stdraw, st); + if (stread != stdraw) + st_framebuffer_validate(stread, st); + + /* modify the draw/read buffers of the context */ + if (stdraw->iface) { + st_visual_to_default_buffer(stdraw->iface->visual, + &st->ctx->Color.DrawBuffer[0], NULL); + } + if (stread->iface) { + st_visual_to_default_buffer(stread->iface->visual, + &st->ctx->Pixel.ReadBuffer, NULL); + } + + ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base); + } + else { + struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer(); + ret = _mesa_make_current(st->ctx, incomplete, incomplete); + } + + st_framebuffer_reference(&stdraw, NULL); + st_framebuffer_reference(&stread, NULL); + } + else { + ret = _mesa_make_current(NULL, NULL, NULL); + } + + return ret; +} + +static struct st_context_iface * +st_api_get_current(struct st_api *stapi) +{ + GET_CURRENT_CONTEXT(ctx); + struct st_context *st = (ctx) ? ctx->st : NULL; + + return (st) ? &st->iface : NULL; +} + +static st_proc_t +st_api_get_proc_address(struct st_api *stapi, const char *procname) +{ + return (st_proc_t) _glapi_get_proc_address(procname); +} + +static void +st_api_destroy(struct st_api *stapi) +{ +} + +/** + * Flush the front buffer if the current context renders to the front buffer. + */ +void +st_manager_flush_frontbuffer(struct st_context *st) +{ + struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer); + struct st_renderbuffer *strb = NULL; + + if (stfb) + strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer); + if (!strb) + return; + + /* never a dummy fb */ + assert(stfb->iface); + stfb->iface->flush_front(stfb->iface, ST_ATTACHMENT_FRONT_LEFT); +} + +/** + * Return the surface of an EGLImage. + * FIXME: I think this should operate on resources, not surfaces + */ +struct pipe_surface * +st_manager_get_egl_image_surface(struct st_context *st, + void *eglimg, unsigned usage) +{ + struct st_manager *smapi = + (struct st_manager *) st->iface.st_context_private; + struct st_egl_image stimg; + struct pipe_surface *ps, surf_tmpl; + + if (!smapi || !smapi->get_egl_image) + return NULL; + + memset(&stimg, 0, sizeof(stimg)); + if (!smapi->get_egl_image(smapi, eglimg, &stimg)) + return NULL; + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + surf_tmpl.format = stimg.texture->format; + surf_tmpl.usage = usage; + surf_tmpl.u.tex.level = stimg.level; + surf_tmpl.u.tex.first_layer = stimg.layer; + surf_tmpl.u.tex.last_layer = stimg.layer; + ps = st->pipe->create_surface(st->pipe, stimg.texture, &surf_tmpl); + pipe_resource_reference(&stimg.texture, NULL); + + return ps; +} + +/** + * Re-validate the framebuffers. + */ +void +st_manager_validate_framebuffers(struct st_context *st) +{ + struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer); + struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer); + + if (stdraw) + st_framebuffer_validate(stdraw, st); + if (stread && stread != stdraw) + st_framebuffer_validate(stread, st); +} + +/** + * Add a color renderbuffer on demand. + */ +boolean +st_manager_add_color_renderbuffer(struct st_context *st, + struct gl_framebuffer *fb, + gl_buffer_index idx) +{ + struct st_framebuffer *stfb = st_ws_framebuffer(fb); + + /* FBO */ + if (!stfb) + return FALSE; + + if (stfb->Base.Attachment[idx].Renderbuffer) + return TRUE; + + switch (idx) { + case BUFFER_FRONT_LEFT: + case BUFFER_BACK_LEFT: + case BUFFER_FRONT_RIGHT: + case BUFFER_BACK_RIGHT: + break; + default: + return FALSE; + break; + } + + if (!st_framebuffer_add_renderbuffer(stfb, idx)) + return FALSE; + + st_framebuffer_update_attachments(stfb); + st_invalidate_state(st->ctx, _NEW_BUFFERS); + + return TRUE; +} + +static const struct st_api st_gl_api = { + "Mesa " MESA_VERSION_STRING, + ST_API_OPENGL, +#if FEATURE_GL + ST_PROFILE_DEFAULT_MASK | +#endif +#if FEATURE_ES1 + ST_PROFILE_OPENGL_ES1_MASK | +#endif +#if FEATURE_ES2 + ST_PROFILE_OPENGL_ES2_MASK | +#endif + 0, + st_api_destroy, + st_api_get_proc_address, + st_api_create_context, + st_api_make_current, + st_api_get_current, +}; + +struct st_api * +st_gl_api_create(void) +{ + return (struct st_api *) &st_gl_api; +} -- cgit v1.2.3