* Version: 7.1
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
/*
+ * GL_EXT/ARB_framebuffer_object extensions
+ *
* Authors:
* Brian Paul
*/
#include "buffers.h"
#include "context.h"
+#include "enums.h"
#include "fbobject.h"
+#include "formats.h"
#include "framebuffer.h"
#include "hash.h"
-#include "mipmap.h"
+#include "macros.h"
#include "renderbuffer.h"
#include "state.h"
#include "teximage.h"
#include "texobj.h"
-#include "texstore.h"
+
+
+/** Set this to 1 to help debug FBO incompleteness problems */
+#define DEBUG_FBO 0
+
+/** Set this to 1 to debug/log glBlitFramebuffer() calls */
+#define DEBUG_BLIT 0
/**
}
+/**
+ * Mark the given framebuffer as invalid. This will force the
+ * test for framebuffer completeness to be done before the framebuffer
+ * is used.
+ */
+static void
+invalidate_framebuffer(struct gl_framebuffer *fb)
+{
+ fb->_Status = 0; /* "indeterminate" */
+}
+
+
/**
* Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
* gl_renderbuffer_attachment object.
+ * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
+ * the depth buffer attachment point.
*/
struct gl_renderbuffer_attachment *
_mesa_get_attachment(GLcontext *ctx, struct gl_framebuffer *fb,
return NULL;
}
return &fb->Attachment[BUFFER_COLOR0 + i];
+ case GL_DEPTH_STENCIL_ATTACHMENT:
+ /* fall-through */
case GL_DEPTH_ATTACHMENT_EXT:
return &fb->Attachment[BUFFER_DEPTH];
case GL_STENCIL_ATTACHMENT_EXT:
if (att->Texture == texObj) {
/* re-attaching same texture */
ASSERT(att->Type == GL_TEXTURE);
+ if (ctx->Driver.FinishRenderTexture)
+ ctx->Driver.FinishRenderTexture(ctx, att);
}
else {
/* new attachment */
+ if (ctx->Driver.FinishRenderTexture && att->Texture)
+ ctx->Driver.FinishRenderTexture(ctx, att);
_mesa_remove_attachment(ctx, att);
att->Type = GL_TEXTURE;
assert(!att->Texture);
/* always update these fields */
att->TextureLevel = level;
- if (IS_CUBE_FACE(texTarget)) {
- att->CubeMapFace = texTarget - GL_TEXTURE_CUBE_MAP_POSITIVE_X;
- }
- else {
- att->CubeMapFace = 0;
- }
+ att->CubeMapFace = _mesa_tex_target_to_face(texTarget);
att->Zoffset = zoffset;
att->Complete = GL_FALSE;
if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {
ctx->Driver.RenderTexture(ctx, fb, att);
}
+
+ invalidate_framebuffer(fb);
}
ASSERT(att);
if (rb) {
_mesa_set_renderbuffer_attachment(ctx, att, rb);
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+ /* do stencil attachment here (depth already done above) */
+ att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
+ assert(att);
+ _mesa_set_renderbuffer_attachment(ctx, att, rb);
+ }
}
else {
_mesa_remove_attachment(ctx, att);
}
+ invalidate_framebuffer(fb);
+
_glthread_UNLOCK_MUTEX(fb->Mutex);
}
+/**
+ * For debug only.
+ */
+static void
+att_incomplete(const char *msg)
+{
+#if DEBUG_FBO
+ _mesa_debug(NULL, "attachment incomplete: %s\n", msg);
+#else
+ (void) msg;
+#endif
+}
+
+
+/**
+ * For debug only.
+ */
+static void
+fbo_incomplete(const char *msg, int index)
+{
+#if DEBUG_FBO
+ _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
+#else
+ (void) msg;
+ (void) index;
+#endif
+}
+
+
+
+
/**
* Test if an attachment point is complete and update its Complete field.
* \param format if GL_COLOR, this is a color attachment point,
if (att->Type == GL_TEXTURE) {
const struct gl_texture_object *texObj = att->Texture;
struct gl_texture_image *texImage;
+ GLenum baseFormat;
if (!texObj) {
+ att_incomplete("no texobj");
att->Complete = GL_FALSE;
return;
}
texImage = texObj->Image[att->CubeMapFace][att->TextureLevel];
if (!texImage) {
+ att_incomplete("no teximage");
att->Complete = GL_FALSE;
return;
}
if (texImage->Width < 1 || texImage->Height < 1) {
+ att_incomplete("teximage width/height=0");
+ _mesa_printf("texobj = %u\n", texObj->Name);
+ _mesa_printf("level = %d\n", att->TextureLevel);
att->Complete = GL_FALSE;
return;
}
if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {
+ att_incomplete("bad z offset");
att->Complete = GL_FALSE;
return;
}
+ baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
+
if (format == GL_COLOR) {
- if (texImage->TexFormat->BaseFormat != GL_RGB &&
- texImage->TexFormat->BaseFormat != GL_RGBA) {
+ if (baseFormat != GL_RGB &&
+ baseFormat != GL_RGBA) {
+ att_incomplete("bad format");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (_mesa_is_format_compressed(texImage->TexFormat)) {
+ att_incomplete("compressed internalformat");
att->Complete = GL_FALSE;
return;
}
}
else if (format == GL_DEPTH) {
- if (texImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT) {
+ if (baseFormat == GL_DEPTH_COMPONENT) {
/* OK */
}
else if (ctx->Extensions.EXT_packed_depth_stencil &&
- texImage->TexFormat->BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ ctx->Extensions.ARB_depth_texture &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
/* OK */
}
else {
att->Complete = GL_FALSE;
+ att_incomplete("bad depth format");
return;
}
}
else {
- /* no such thing as stencil textures */
- att->Complete = GL_FALSE;
- return;
+ ASSERT(format == GL_STENCIL);
+ if (ctx->Extensions.EXT_packed_depth_stencil &&
+ ctx->Extensions.ARB_depth_texture &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ /* no such thing as stencil-only textures */
+ att_incomplete("illegal stencil texture");
+ att->Complete = GL_FALSE;
+ return;
+ }
}
}
else if (att->Type == GL_RENDERBUFFER_EXT) {
+ const GLenum baseFormat =
+ _mesa_get_format_base_format(att->Renderbuffer->Format);
+
ASSERT(att->Renderbuffer);
if (!att->Renderbuffer->InternalFormat ||
att->Renderbuffer->Width < 1 ||
att->Renderbuffer->Height < 1) {
+ att_incomplete("0x0 renderbuffer");
att->Complete = GL_FALSE;
return;
}
if (format == GL_COLOR) {
- if (att->Renderbuffer->_BaseFormat != GL_RGB &&
- att->Renderbuffer->_BaseFormat != GL_RGBA) {
- ASSERT(att->Renderbuffer->RedBits);
- ASSERT(att->Renderbuffer->GreenBits);
- ASSERT(att->Renderbuffer->BlueBits);
+ if (baseFormat != GL_RGB &&
+ baseFormat != GL_RGBA) {
+ att_incomplete("bad renderbuffer color format");
att->Complete = GL_FALSE;
return;
}
}
else if (format == GL_DEPTH) {
- ASSERT(att->Renderbuffer->DepthBits);
- if (att->Renderbuffer->_BaseFormat == GL_DEPTH_COMPONENT) {
+ if (baseFormat == GL_DEPTH_COMPONENT) {
/* OK */
}
else if (ctx->Extensions.EXT_packed_depth_stencil &&
- att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
/* OK */
}
else {
+ att_incomplete("bad renderbuffer depth format");
att->Complete = GL_FALSE;
return;
}
}
else {
assert(format == GL_STENCIL);
- ASSERT(att->Renderbuffer->StencilBits);
- if (att->Renderbuffer->_BaseFormat == GL_STENCIL_INDEX) {
+ if (baseFormat == GL_STENCIL_INDEX) {
/* OK */
}
else if (ctx->Extensions.EXT_packed_depth_stencil &&
- att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
/* OK */
}
else {
att->Complete = GL_FALSE;
+ att_incomplete("bad renderbuffer stencil format");
return;
}
}
}
-/**
- * Helpful for debugging
- */
-static void
-fbo_incomplete(const char *msg, int index)
-{
- (void) msg;
- (void) index;
- /*
- _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
- */
-}
-
-
/**
* Test if the given framebuffer object is complete and update its
* Status field with the results.
+ * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
+ * driver to make hardware-specific validation/completeness checks.
* Also update the framebuffer's Width and Height fields if the
* framebuffer is complete.
*/
void
_mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb)
{
- GLuint numImages, width = 0, height = 0;
- GLenum intFormat = GL_NONE;
- GLuint w = 0, h = 0;
+ GLuint numImages;
+ GLenum intFormat = GL_NONE; /* color buffers' internal format */
+ GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
+ GLint numSamples = -1;
GLint i;
GLuint j;
fb->Width = 0;
fb->Height = 0;
- /* Start at -2 to more easily loop over all attachment points */
+ /* Start at -2 to more easily loop over all attachment points.
+ * -2: depth buffer
+ * -1: stencil buffer
+ * >=0: color buffer
+ */
for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {
struct gl_renderbuffer_attachment *att;
GLenum f;
+ /*
+ * XXX for ARB_fbo, only check color buffers that are named by
+ * GL_READ_BUFFER and GL_DRAW_BUFFERi.
+ */
+
+ /* check for attachment completeness
+ */
if (i == -2) {
att = &fb->Attachment[BUFFER_DEPTH];
test_attachment_completeness(ctx, GL_DEPTH, att);
}
}
+ /* get width, height, format of the renderbuffer/texture
+ */
if (att->Type == GL_TEXTURE) {
const struct gl_texture_image *texImg
= att->Texture->Image[att->CubeMapFace][att->TextureLevel];
- w = texImg->Width;
- h = texImg->Height;
+ minWidth = MIN2(minWidth, texImg->Width);
+ maxWidth = MAX2(maxWidth, texImg->Width);
+ minHeight = MIN2(minHeight, texImg->Height);
+ maxHeight = MAX2(maxHeight, texImg->Height);
f = texImg->_BaseFormat;
numImages++;
if (f != GL_RGB && f != GL_RGBA && f != GL_DEPTH_COMPONENT
}
}
else if (att->Type == GL_RENDERBUFFER_EXT) {
- w = att->Renderbuffer->Width;
- h = att->Renderbuffer->Height;
+ minWidth = MIN2(minWidth, att->Renderbuffer->Width);
+ maxWidth = MAX2(minWidth, att->Renderbuffer->Width);
+ minHeight = MIN2(minHeight, att->Renderbuffer->Height);
+ maxHeight = MAX2(minHeight, att->Renderbuffer->Height);
f = att->Renderbuffer->InternalFormat;
numImages++;
}
continue;
}
+ if (numSamples < 0) {
+ /* first buffer */
+ numSamples = att->Renderbuffer->NumSamples;
+ }
+
+ /* Error-check width, height, format, samples
+ */
if (numImages == 1) {
- /* set required width, height and format */
- width = w;
- height = h;
- if (i >= 0)
+ /* save format, num samples */
+ if (i >= 0) {
intFormat = f;
+ }
}
else {
- /* check that width, height, format are same */
- if (w != width || h != height) {
- fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
- fbo_incomplete("width or height mismatch", -1);
- return;
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ /* check that width, height, format are same */
+ if (minWidth != maxWidth || minHeight != maxHeight) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
+ fbo_incomplete("width or height mismatch", -1);
+ return;
+ }
+ /* check that all color buffer have same format */
+ if (intFormat != GL_NONE && f != intFormat) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+ fbo_incomplete("format mismatch", -1);
+ return;
+ }
}
- if (intFormat != GL_NONE && f != intFormat) {
- fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
- fbo_incomplete("format mismatch", -1);
+ if (att->Renderbuffer &&
+ att->Renderbuffer->NumSamples != numSamples) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+ fbo_incomplete("inconsistant number of samples", i);
return;
- }
+ }
+
}
}
return;
}
}
+#else
+ (void) j;
#endif
if (numImages == 0) {
return;
}
- /*
- * If we get here, the framebuffer is complete!
- */
+ /* Provisionally set status = COMPLETE ... */
fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
- fb->Width = w;
- fb->Height = h;
+
+ /* ... but the driver may say the FB is incomplete.
+ * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
+ * if anything.
+ */
+ if (ctx->Driver.ValidateFramebuffer) {
+ ctx->Driver.ValidateFramebuffer(ctx, fb);
+ if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ fbo_incomplete("driver marked FBO as incomplete", -1);
+ }
+ }
+
+ if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
+ /*
+ * Note that if ARB_framebuffer_object is supported and the attached
+ * renderbuffers/textures are different sizes, the framebuffer
+ * width/height will be set to the smallest width/height.
+ */
+ fb->Width = minWidth;
+ fb->Height = minHeight;
+
+ /* finally, update the visual info for the framebuffer */
+ _mesa_update_framebuffer_visual(fb);
+ }
}
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (target != GL_RENDERBUFFER_EXT) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glBindRenderbufferEXT(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)");
return;
}
- FLUSH_VERTICES(ctx, _NEW_BUFFERS);
- /* The above doesn't fully flush the drivers in the way that a
- * glFlush does, but that is required here:
+ /* No need to flush here since the render buffer binding has no
+ * effect on rendering state.
*/
- if (ctx->Driver.Flush)
- ctx->Driver.Flush(ctx);
-
if (renderbuffer) {
newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
/* ID was reserved, but no real renderbuffer object made yet */
newRb = NULL;
}
+ else if (!newRb && ctx->Extensions.ARB_framebuffer_object) {
+ /* All RB IDs must be Gen'd */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");
+ return;
+ }
+
if (!newRb) {
/* create new renderbuffer object */
newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer);
}
+/**
+ * If the given renderbuffer is anywhere attached to the framebuffer, detach
+ * the renderbuffer.
+ * This is used when a renderbuffer object is deleted.
+ * The spec calls for unbinding.
+ */
+static void
+detach_renderbuffer(GLcontext *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer *rb)
+{
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ if (fb->Attachment[i].Renderbuffer == rb) {
+ _mesa_remove_attachment(ctx, &fb->Attachment[i]);
+ }
+ }
+ invalidate_framebuffer(fb);
+}
+
+
void GLAPIENTRY
_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
{
_mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
}
+ if (ctx->DrawBuffer->Name) {
+ detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
+ }
+ if (ctx->ReadBuffer->Name && ctx->ReadBuffer != ctx->DrawBuffer) {
+ detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
+ }
+
/* Remove from hash table immediately, to free the ID.
* But the object will not be freed until it's no longer
* referenced anywhere else.
*
* \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT
* GL_DEPTH_STENCIL_EXT or zero if error.
+ *
+ * XXX in the future when we support red-only and red-green formats
+ * we'll also return GL_RED and GL_RG.
*/
GLenum
_mesa_base_fbo_format(GLcontext *ctx, GLenum internalFormat)
}
-void GLAPIENTRY
-_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
- GLsizei width, GLsizei height)
+/** sentinal value, see below */
+#define NO_SAMPLES 1000
+
+
+/**
+ * Helper function used by _mesa_RenderbufferStorageEXT() and
+ * _mesa_RenderbufferStorageMultisample().
+ * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
+ */
+static void
+renderbuffer_storage(GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height, GLsizei samples)
{
+ const char *func = samples == NO_SAMPLES ?
+ "glRenderbufferStorage" : "RenderbufferStorageMultisample";
struct gl_renderbuffer *rb;
GLenum baseFormat;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (target != GL_RENDERBUFFER_EXT) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glRenderbufferStorageEXT(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
return;
}
baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
if (baseFormat == 0) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glRenderbufferStorageEXT(internalFormat)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);
return;
}
if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glRenderbufferStorageEXT(width)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);
return;
}
if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glRenderbufferStorageEXT(height)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);
return;
}
- rb = ctx->CurrentRenderbuffer;
+ if (samples == NO_SAMPLES) {
+ /* NumSamples == 0 indicates non-multisampling */
+ samples = 0;
+ }
+ else if (samples > ctx->Const.MaxSamples) {
+ /* note: driver may choose to use more samples than what's requested */
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
+ return;
+ }
+ rb = ctx->CurrentRenderbuffer;
if (!rb) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glRenderbufferStorageEXT");
+ _mesa_error(ctx, GL_INVALID_OPERATION, func);
return;
}
}
/* These MUST get set by the AllocStorage func */
- rb->_ActualFormat = 0;
- rb->RedBits =
- rb->GreenBits =
- rb->BlueBits =
- rb->AlphaBits =
- rb->IndexBits =
- rb->DepthBits =
- rb->StencilBits = 0;
+ rb->Format = MESA_FORMAT_NONE;
+ rb->NumSamples = samples;
/* Now allocate the storage */
ASSERT(rb->AllocStorage);
if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {
/* No error - check/set fields now */
- assert(rb->_ActualFormat);
+ assert(rb->Format != MESA_FORMAT_NONE);
assert(rb->Width == (GLuint) width);
assert(rb->Height == (GLuint) height);
- assert(rb->RedBits || rb->GreenBits || rb->BlueBits || rb->AlphaBits ||
- rb->DepthBits || rb->StencilBits || rb->IndexBits);
rb->InternalFormat = internalFormat;
- rb->_BaseFormat = baseFormat;
+ rb->_BaseFormat = _mesa_base_fbo_format(ctx, internalFormat);
+ assert(rb->_BaseFormat != 0);
}
else {
/* Probably ran out of memory - clear the fields */
rb->Width = 0;
rb->Height = 0;
+ rb->Format = MESA_FORMAT_NONE;
rb->InternalFormat = GL_NONE;
- rb->_ActualFormat = GL_NONE;
rb->_BaseFormat = GL_NONE;
- rb->RedBits =
- rb->GreenBits =
- rb->BlueBits =
- rb->AlphaBits =
- rb->IndexBits =
- rb->DepthBits =
- rb->StencilBits = 0;
+ rb->NumSamples = 0;
}
/*
}
+/**
+ * Helper function for _mesa_GetRenderbufferParameterivEXT() and
+ * _mesa_GetFramebufferAttachmentParameterivEXT()
+ * We have to be careful to respect the base format. For example, if a
+ * renderbuffer/texture was created with internalFormat=GL_RGB but the
+ * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
+ * we need to return zero.
+ */
+static GLint
+get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
+{
+ switch (pname) {
+ case GL_RENDERBUFFER_RED_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+ case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+ case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+ if (baseFormat == GL_RGB || baseFormat == GL_RGBA)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+ if (baseFormat == GL_RGBA || baseFormat == GL_ALPHA)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+ if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+ if (baseFormat == GL_STENCIL_INDEX || baseFormat == GL_DEPTH_STENCIL)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ default:
+ return 0;
+ }
+}
+
+
+
+void GLAPIENTRY
+_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height)
+{
+ /* GL_ARB_fbo says calling this function is equivalent to calling
+ * glRenderbufferStorageMultisample() with samples=0. We pass in
+ * a token value here just for error reporting purposes.
+ */
+ renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES);
+}
+
+
+void GLAPIENTRY
+_mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples,
+ GLenum internalFormat,
+ GLsizei width, GLsizei height)
+{
+ renderbuffer_storage(target, internalFormat, width, height, samples);
+}
+
+
+
void GLAPIENTRY
_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
{
+ struct gl_renderbuffer *rb;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
return;
}
- if (!ctx->CurrentRenderbuffer) {
+ rb = ctx->CurrentRenderbuffer;
+ if (!rb) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetRenderbufferParameterivEXT");
return;
}
- FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+ /* No need to flush here since we're just quering state which is
+ * not effected by rendering.
+ */
switch (pname) {
case GL_RENDERBUFFER_WIDTH_EXT:
- *params = ctx->CurrentRenderbuffer->Width;
+ *params = rb->Width;
return;
case GL_RENDERBUFFER_HEIGHT_EXT:
- *params = ctx->CurrentRenderbuffer->Height;
+ *params = rb->Height;
return;
case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
- *params = ctx->CurrentRenderbuffer->InternalFormat;
+ *params = rb->InternalFormat;
return;
case GL_RENDERBUFFER_RED_SIZE_EXT:
- *params = ctx->CurrentRenderbuffer->RedBits;
- break;
case GL_RENDERBUFFER_GREEN_SIZE_EXT:
- *params = ctx->CurrentRenderbuffer->GreenBits;
- break;
case GL_RENDERBUFFER_BLUE_SIZE_EXT:
- *params = ctx->CurrentRenderbuffer->BlueBits;
- break;
case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
- *params = ctx->CurrentRenderbuffer->AlphaBits;
- break;
case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
- *params = ctx->CurrentRenderbuffer->DepthBits;
- break;
case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
- *params = ctx->CurrentRenderbuffer->StencilBits;
+ *params = get_component_bits(pname, rb->_BaseFormat, rb->Format);
break;
+ case GL_RENDERBUFFER_SAMPLES:
+ if (ctx->Extensions.ARB_framebuffer_object) {
+ *params = rb->NumSamples;
+ break;
+ }
+ /* fallthrough */
default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetRenderbufferParameterivEXT(target)");
}
+/**
+ * Check if any of the attachments of the given framebuffer are textures
+ * (render to texture). Call ctx->Driver.RenderTexture() for such
+ * attachments.
+ */
static void
check_begin_texture_render(GLcontext *ctx, struct gl_framebuffer *fb)
{
GLuint i;
ASSERT(ctx->Driver.RenderTexture);
+
+ if (fb->Name == 0)
+ return; /* can't render to texture with winsys framebuffers */
+
for (i = 0; i < BUFFER_COUNT; i++) {
struct gl_renderbuffer_attachment *att = fb->Attachment + i;
struct gl_texture_object *texObj = att->Texture;
if (texObj
- && att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {
+ && texObj->Image[att->CubeMapFace][att->TextureLevel]) {
ctx->Driver.RenderTexture(ctx, fb, att);
}
}
static void
check_end_texture_render(GLcontext *ctx, struct gl_framebuffer *fb)
{
+ if (fb->Name == 0)
+ return; /* can't render to texture with winsys framebuffers */
+
if (ctx->Driver.FinishRenderTexture) {
GLuint i;
for (i = 0; i < BUFFER_COUNT; i++) {
void GLAPIENTRY
_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
{
- struct gl_framebuffer *newFb, *newFbread;
+ struct gl_framebuffer *newDrawFb, *newReadFb;
+ struct gl_framebuffer *oldDrawFb, *oldReadFb;
GLboolean bindReadBuf, bindDrawBuf;
GET_CURRENT_CONTEXT(ctx);
+#ifdef DEBUG
+ if (ctx->Extensions.ARB_framebuffer_object) {
+ ASSERT(ctx->Extensions.EXT_framebuffer_object);
+ ASSERT(ctx->Extensions.EXT_framebuffer_blit);
+ }
+#endif
+
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (!ctx->Extensions.EXT_framebuffer_object) {
return;
}
- FLUSH_VERTICES(ctx, _NEW_BUFFERS);
-
- if (ctx->Driver.Flush) {
- ctx->Driver.Flush(ctx);
- }
-
if (framebuffer) {
/* Binding a user-created framebuffer object */
- newFb = _mesa_lookup_framebuffer(ctx, framebuffer);
- if (newFb == &DummyFramebuffer) {
+ newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer);
+ if (newDrawFb == &DummyFramebuffer) {
/* ID was reserved, but no real framebuffer object made yet */
- newFb = NULL;
+ newDrawFb = NULL;
+ }
+ else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) {
+ /* All FBO IDs must be Gen'd */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
+ return;
}
- if (!newFb) {
+
+ if (!newDrawFb) {
/* create new framebuffer object */
- newFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
- if (!newFb) {
+ newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
+ if (!newDrawFb) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
return;
}
- _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newFb);
+ _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb);
}
- newFbread = newFb;
+ newReadFb = newDrawFb;
}
else {
/* Binding the window system framebuffer (which was originally set
* with MakeCurrent).
*/
- newFb = ctx->WinSysDrawBuffer;
- newFbread = ctx->WinSysReadBuffer;
+ newDrawFb = ctx->WinSysDrawBuffer;
+ newReadFb = ctx->WinSysReadBuffer;
}
- ASSERT(newFb);
- ASSERT(newFb != &DummyFramebuffer);
+ ASSERT(newDrawFb);
+ ASSERT(newDrawFb != &DummyFramebuffer);
+
+ /* save pointers to current/old framebuffers */
+ oldDrawFb = ctx->DrawBuffer;
+ oldReadFb = ctx->ReadBuffer;
+
+ /* check if really changing bindings */
+ if (oldDrawFb == newDrawFb)
+ bindDrawBuf = GL_FALSE;
+ if (oldReadFb == newReadFb)
+ bindReadBuf = GL_FALSE;
/*
- * XXX check if re-binding same buffer and skip some of this code.
+ * OK, now bind the new Draw/Read framebuffers, if they're changing.
+ *
+ * We also check if we're beginning and/or ending render-to-texture.
+ * When a framebuffer with texture attachments is unbound, call
+ * ctx->Driver.FinishRenderTexture().
+ * When a framebuffer with texture attachments is bound, call
+ * ctx->Driver.RenderTexture().
+ *
+ * Note that if the ReadBuffer has texture attachments we don't consider
+ * that a render-to-texture case.
*/
-
if (bindReadBuf) {
- _mesa_reference_framebuffer(&ctx->ReadBuffer, newFbread);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ /* check if old readbuffer was render-to-texture */
+ check_end_texture_render(ctx, oldReadFb);
+
+ _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb);
}
if (bindDrawBuf) {
- /* check if old FB had any texture attachments */
- check_end_texture_render(ctx, ctx->DrawBuffer);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
- /* check if time to delete this framebuffer */
- _mesa_reference_framebuffer(&ctx->DrawBuffer, newFb);
+ /* check if old read/draw buffers were render-to-texture */
+ if (!bindReadBuf)
+ check_end_texture_render(ctx, oldReadFb);
- if (newFb->Name != 0) {
- /* check if newly bound framebuffer has any texture attachments */
- check_begin_texture_render(ctx, newFb);
- }
+ if (oldDrawFb != oldReadFb)
+ check_end_texture_render(ctx, oldDrawFb);
+
+ /* check if newly bound framebuffer has any texture attachments */
+ check_begin_texture_render(ctx, newDrawFb);
+
+ _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb);
}
- if (ctx->Driver.BindFramebuffer) {
- ctx->Driver.BindFramebuffer(ctx, target, newFb, newFbread);
+ if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) {
+ ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb);
}
}
ASSERT_OUTSIDE_BEGIN_END(ctx);
FLUSH_VERTICES(ctx, _NEW_BUFFERS);
- /* The above doesn't fully flush the drivers in the way that a
- * glFlush does, but that is required here:
- */
- if (ctx->Driver.Flush)
- ctx->Driver.Flush(ctx);
for (i = 0; i < n; i++) {
if (framebuffers[i] > 0) {
ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
/* check if deleting currently bound framebuffer object */
- if (fb == ctx->DrawBuffer) {
- /* bind default */
- ASSERT(fb->RefCount >= 2);
- _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+ if (ctx->Extensions.EXT_framebuffer_blit) {
+ /* separate draw/read binding points */
+ if (fb == ctx->DrawBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
+ }
+ if (fb == ctx->ReadBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
+ }
+ }
+ else {
+ /* only one binding point for read/draw buffers */
+ if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+ }
}
/* remove from hash table immediately, to free the ID */
/* But the object will not be freed until it's no longer
* bound in any context.
*/
- _mesa_unreference_framebuffer(&fb);
+ _mesa_reference_framebuffer(&fb, NULL);
}
}
}
return GL_FRAMEBUFFER_COMPLETE_EXT;
}
- FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+ /* No need to flush here */
+
+ if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
+ _mesa_test_framebuffer_completeness(ctx, buffer);
+ }
- _mesa_test_framebuffer_completeness(ctx, buffer);
return buffer->_Status;
}
struct gl_renderbuffer_attachment *att;
struct gl_texture_object *texObj = NULL;
struct gl_framebuffer *fb;
+ GLboolean error = GL_FALSE;
ASSERT_OUTSIDE_BEGIN_END(ctx);
- if (target != GL_FRAMEBUFFER_EXT) {
+ switch (target) {
+ case GL_READ_FRAMEBUFFER_EXT:
+ error = !ctx->Extensions.EXT_framebuffer_blit;
+ fb = ctx->ReadBuffer;
+ break;
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ error = !ctx->Extensions.EXT_framebuffer_blit;
+ /* fall-through */
+ case GL_FRAMEBUFFER_EXT:
+ fb = ctx->DrawBuffer;
+ break;
+ default:
+ error = GL_TRUE;
+ }
+
+ if (error) {
_mesa_error(ctx, GL_INVALID_ENUM,
- "glFramebufferTexture%sEXT(target)", caller);
+ "glFramebufferTexture%sEXT(target=0x%x)", caller, target);
return;
}
- fb = ctx->DrawBuffer;
ASSERT(fb);
/* check framebuffer binding */
}
}
-
if ((level < 0) ||
(level >= _mesa_max_texture_levels(ctx, texObj->Target))) {
_mesa_error(ctx, GL_INVALID_VALUE,
}
FLUSH_VERTICES(ctx, _NEW_BUFFERS);
- /* The above doesn't fully flush the drivers in the way that a
- * glFlush does, but that is required here:
- */
- if (ctx->Driver.Flush)
- ctx->Driver.Flush(ctx);
_glthread_LOCK_MUTEX(fb->Mutex);
if (texObj) {
_mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
level, zoffset);
+ /* Set the render-to-texture flag. We'll check this flag in
+ * glTexImage() and friends to determine if we need to revalidate
+ * any FBOs that might be rendering into this texture.
+ * This flag never gets cleared since it's non-trivial to determine
+ * when all FBOs might be done rendering to this texture. That's OK
+ * though since it's uncommon to render to a texture then repeatedly
+ * call glTexImage() to change images in the texture.
+ */
+ texObj->_RenderToTexture = GL_TRUE;
}
else {
_mesa_remove_attachment(ctx, att);
}
+
+ invalidate_framebuffer(fb);
+
_glthread_UNLOCK_MUTEX(fb->Mutex);
}
(textarget != GL_TEXTURE_RECTANGLE_ARB) &&
(!IS_CUBE_FACE(textarget))) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glFramebufferTexture2DEXT(textarget)");
+ "glFramebufferTexture2DEXT(textarget=0x%x)", textarget);
return;
}
att = _mesa_get_attachment(ctx, fb, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
- "glFramebufferRenderbufferEXT(attachment)");
+ "glFramebufferRenderbufferEXT(invalid attachment %s)",
+ _mesa_lookup_enum_by_nr(attachment));
return;
}
rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
if (!rb) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glFramebufferRenderbufferEXT(renderbuffer)");
+ "glFramebufferRenderbufferEXT(non-existant"
+ " renderbuffer %u)", renderbuffer);
return;
}
}
rb = NULL;
}
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+ /* make sure the renderbuffer is a depth/stencil format */
+ const GLenum baseFormat =
+ _mesa_get_format_base_format(att->Renderbuffer->Format);
+ if (baseFormat != GL_DEPTH_STENCIL) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferRenderbufferEXT(renderbuffer"
+ " is not DEPTH_STENCIL format)");
+ return;
+ }
+ }
+
+
FLUSH_VERTICES(ctx, _NEW_BUFFERS);
- /* The above doesn't fully flush the drivers in the way that a
- * glFlush does, but that is required here:
- */
- if (ctx->Driver.Flush)
- ctx->Driver.Flush(ctx);
assert(ctx->Driver.FramebufferRenderbuffer);
ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
return;
}
- FLUSH_VERTICES(ctx, _NEW_BUFFERS);
- /* The above doesn't fully flush the drivers in the way that a
- * glFlush does, but that is required here:
- */
- if (ctx->Driver.Flush)
- ctx->Driver.Flush(ctx);
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+ /* the depth and stencil attachments must point to the same buffer */
+ const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt;
+ depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
+ stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
+ if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
+ " attachments differ)");
+ return;
+ }
+ }
+
+ /* No need to flush here */
switch (pname) {
case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
"glGetFramebufferAttachmentParameterivEXT(pname)");
}
return;
+ case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ else {
+ *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format);
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ return;
+ }
+ else {
+ gl_format format = att->Renderbuffer->Format;
+ if (format == MESA_FORMAT_CI8 || format == MESA_FORMAT_S8) {
+ /* special cases */
+ *params = GL_INDEX;
+ }
+ else {
+ *params = _mesa_get_format_datatype(format);
+ }
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ else if (att->Texture) {
+ const struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target,
+ att->TextureLevel);
+ if (texImage) {
+ *params = get_component_bits(pname, texImage->_BaseFormat,
+ texImage->TexFormat);
+ }
+ else {
+ *params = 0;
+ }
+ }
+ else if (att->Renderbuffer) {
+ *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat,
+ att->Renderbuffer->Format);
+ }
+ else {
+ *params = 0;
+ }
+ return;
default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetFramebufferAttachmentParameterivEXT(pname)");
void GLAPIENTRY
_mesa_GenerateMipmapEXT(GLenum target)
{
- struct gl_texture_unit *texUnit;
struct gl_texture_object *texObj;
GET_CURRENT_CONTEXT(ctx);
return;
}
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ if (texObj->BaseLevel >= texObj->MaxLevel) {
+ /* nothing to do */
+ return;
+ }
- /* XXX this might not handle cube maps correctly */
_mesa_lock_texture(ctx, texObj);
- ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ GLuint face;
+ for (face = 0; face < 6; face++)
+ ctx->Driver.GenerateMipmap(ctx,
+ GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,
+ texObj);
+ }
+ else {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
_mesa_unlock_texture(ctx, texObj);
}
#if FEATURE_EXT_framebuffer_blit
+
+static const struct gl_renderbuffer_attachment *
+find_attachment(const struct gl_framebuffer *fb, const struct gl_renderbuffer *rb)
+{
+ GLuint i;
+ for (i = 0; i < Elements(fb->Attachment); i++) {
+ if (fb->Attachment[i].Renderbuffer == rb)
+ return &fb->Attachment[i];
+ }
+ return NULL;
+}
+
+
+
+/**
+ * Blit rectangular region, optionally from one framebuffer to another.
+ *
+ * Note, if the src buffer is multisampled and the dest is not, this is
+ * when the samples must be resolved to a single color.
+ */
void GLAPIENTRY
_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLbitfield mask, GLenum filter)
{
+ const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
+ GL_DEPTH_BUFFER_BIT |
+ GL_STENCIL_BUFFER_BIT);
+ const struct gl_framebuffer *readFb, *drawFb;
+ const struct gl_renderbuffer *colorReadRb, *colorDrawRb;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
_mesa_update_state(ctx);
}
- if (!ctx->ReadBuffer) {
- /* XXX */
+ readFb = ctx->ReadBuffer;
+ drawFb = ctx->DrawBuffer;
+
+ if (!readFb || !drawFb) {
+ /* This will normally never happen but someday we may want to
+ * support MakeCurrent() with no drawables.
+ */
+ return;
}
/* check for complete framebuffers */
- if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
- ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
+ readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
_mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
"glBlitFramebufferEXT(incomplete draw/read buffers)");
return;
return;
}
- if (mask & ~(GL_COLOR_BUFFER_BIT |
- GL_DEPTH_BUFFER_BIT |
- GL_STENCIL_BUFFER_BIT)) {
+ if (mask & ~legalMaskBits) {
_mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
return;
}
return;
}
+ /* get color read/draw renderbuffers */
+ if (mask & GL_COLOR_BUFFER_BIT) {
+ colorReadRb = readFb->_ColorReadBuffer;
+ colorDrawRb = drawFb->_ColorDrawBuffers[0];
+ }
+ else {
+ colorReadRb = colorDrawRb = NULL;
+ }
+
if (mask & GL_STENCIL_BUFFER_BIT) {
- struct gl_renderbuffer *readRb = ctx->ReadBuffer->_StencilBuffer;
- struct gl_renderbuffer *drawRb = ctx->DrawBuffer->_StencilBuffer;
- if (readRb->StencilBits != drawRb->StencilBits) {
+ struct gl_renderbuffer *readRb = readFb->_StencilBuffer;
+ struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer;
+ if (!readRb ||
+ !drawRb ||
+ _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
+ _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBlitFramebufferEXT(stencil buffer size mismatch");
return;
}
if (mask & GL_DEPTH_BUFFER_BIT) {
- struct gl_renderbuffer *readRb = ctx->ReadBuffer->_DepthBuffer;
- struct gl_renderbuffer *drawRb = ctx->DrawBuffer->_DepthBuffer;
- if (readRb->DepthBits != drawRb->DepthBits) {
+ struct gl_renderbuffer *readRb = readFb->_DepthBuffer;
+ struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer;
+ if (!readRb ||
+ !drawRb ||
+ _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
+ _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBlitFramebufferEXT(depth buffer size mismatch");
return;
}
}
+ if (readFb->Visual.samples > 0 &&
+ drawFb->Visual.samples > 0 &&
+ readFb->Visual.samples != drawFb->Visual.samples) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(mismatched samples");
+ return;
+ }
+
+ /* extra checks for multisample copies... */
+ if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
+ /* src and dest region sizes must be the same */
+ if (srcX1 - srcX0 != dstX1 - dstX0 ||
+ srcY1 - srcY0 != dstY1 - dstY0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(bad src/dst multisample region sizes");
+ return;
+ }
+
+ /* color formats must match */
+ if (colorReadRb &&
+ colorDrawRb &&
+ colorReadRb->Format != colorDrawRb->Format) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(bad src/dst multisample pixel formats");
+ return;
+ }
+ }
+
if (!ctx->Extensions.EXT_framebuffer_blit) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
return;
}
+ /* Debug code */
+ if (DEBUG_BLIT) {
+ _mesa_printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
+ " 0x%x, 0x%x)\n",
+ srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1,
+ mask, filter);
+ if (colorReadRb) {
+ const struct gl_renderbuffer_attachment *att;
+
+ att = find_attachment(readFb, colorReadRb);
+ _mesa_printf(" Src FBO %u RB %u (%dx%d) ",
+ readFb->Name, colorReadRb->Name,
+ colorReadRb->Width, colorReadRb->Height);
+ if (att && att->Texture) {
+ _mesa_printf("Tex %u tgt 0x%x level %u face %u",
+ att->Texture->Name,
+ att->Texture->Target,
+ att->TextureLevel,
+ att->CubeMapFace);
+ }
+ _mesa_printf("\n");
+
+ att = find_attachment(drawFb, colorDrawRb);
+ _mesa_printf(" Dst FBO %u RB %u (%dx%d) ",
+ drawFb->Name, colorDrawRb->Name,
+ colorDrawRb->Width, colorDrawRb->Height);
+ if (att && att->Texture) {
+ _mesa_printf("Tex %u tgt 0x%x level %u face %u",
+ att->Texture->Name,
+ att->Texture->Target,
+ att->TextureLevel,
+ att->CubeMapFace);
+ }
+ _mesa_printf("\n");
+ }
+ }
+
ASSERT(ctx->Driver.BlitFramebuffer);
ctx->Driver.BlitFramebuffer(ctx,
srcX0, srcY0, srcX1, srcY1,
projects / mesa.git / blobdiff