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-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_fbo.c1286
-rw-r--r--mesalib/src/mesa/state_tracker/st_manager.c1845
2 files changed, 1568 insertions, 1563 deletions
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 <olv@lunarg.com>
- */
-
-#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 <olv@lunarg.com>
+ */
+
+#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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 14:19:57 +0000