/*
* Mesa 3-D graphics library
- * Version: 6.3
+ * Version: 7.1
*
- * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ * 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 "fbobject.h"
+#include "framebuffer.h"
#include "hash.h"
+#include "macros.h"
+#include "mipmap.h"
+#include "renderbuffer.h"
+#include "state.h"
#include "teximage.h"
+#include "texobj.h"
#include "texstore.h"
-static struct gl_frame_buffer_object DummyFramebuffer;
-static struct gl_render_buffer_object DummyRenderbuffer;
+/**
+ * Notes:
+ *
+ * None of the GL_EXT_framebuffer_object functions are compiled into
+ * display lists.
+ */
+
+
+
+/*
+ * When glGenRender/FramebuffersEXT() is called we insert pointers to
+ * these placeholder objects into the hash table.
+ * Later, when the object ID is first bound, we replace the placeholder
+ * with the real frame/renderbuffer.
+ */
+static struct gl_framebuffer DummyFramebuffer;
+static struct gl_renderbuffer DummyRenderbuffer;
#define IS_CUBE_FACE(TARGET) \
(TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
+static void
+delete_dummy_renderbuffer(struct gl_renderbuffer *rb)
+{
+ /* no op */
+}
+
+static void
+delete_dummy_framebuffer(struct gl_framebuffer *fb)
+{
+ /* no op */
+}
+
+
+void
+_mesa_init_fbobjects(GLcontext *ctx)
+{
+ DummyFramebuffer.Delete = delete_dummy_framebuffer;
+ DummyRenderbuffer.Delete = delete_dummy_renderbuffer;
+}
+
+
/**
- * Helper routine for getting a gl_render_buffer_object.
+ * Helper routine for getting a gl_renderbuffer.
*/
-static struct gl_render_buffer_object *
-lookup_renderbuffer(GLcontext *ctx, GLuint id)
+struct gl_renderbuffer *
+_mesa_lookup_renderbuffer(GLcontext *ctx, GLuint id)
{
- struct gl_render_buffer_object *rb;
+ struct gl_renderbuffer *rb;
if (id == 0)
return NULL;
- rb = (struct gl_render_buffer_object *)
+ rb = (struct gl_renderbuffer *)
_mesa_HashLookup(ctx->Shared->RenderBuffers, id);
return rb;
}
/**
- * Helper routine for getting a gl_frame_buffer_object.
+ * Helper routine for getting a gl_framebuffer.
*/
-static struct gl_frame_buffer_object *
-lookup_framebuffer(GLcontext *ctx, GLuint id)
+struct gl_framebuffer *
+_mesa_lookup_framebuffer(GLcontext *ctx, GLuint id)
{
- struct gl_frame_buffer_object *fb;
+ struct gl_framebuffer *fb;
if (id == 0)
return NULL;
- fb = (struct gl_frame_buffer_object *)
+ fb = (struct gl_framebuffer *)
_mesa_HashLookup(ctx->Shared->FrameBuffers, id);
return fb;
}
/**
- * Allocate a new gl_render_buffer_object.
- * XXX make this a device driver function.
- */
-static struct gl_render_buffer_object *
-new_renderbuffer(GLcontext *ctx, GLuint name)
-{
- struct gl_render_buffer_object *rb = CALLOC_STRUCT(gl_render_buffer_object);
- if (rb) {
- rb->Name = name;
- rb->RefCount = 1;
- /* other fields are zero */
- }
- return rb;
-}
-
-
-/**
- * Allocate a new gl_frame_buffer_object.
- * XXX make this a device driver function.
+ * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
+ * gl_renderbuffer_attachment object.
*/
-static struct gl_frame_buffer_object *
-new_framebuffer(GLcontext *ctx, GLuint name)
-{
- struct gl_frame_buffer_object *fb = CALLOC_STRUCT(gl_frame_buffer_object);
- if (fb) {
- fb->Name = name;
- fb->RefCount = 1;
- }
- return fb;
-}
-
-
-static struct gl_render_buffer_attachment *
-get_attachment(GLcontext *ctx, GLenum attachment)
+struct gl_renderbuffer_attachment *
+_mesa_get_attachment(GLcontext *ctx, struct gl_framebuffer *fb,
+ GLenum attachment)
{
GLuint i;
if (i >= ctx->Const.MaxColorAttachments) {
return NULL;
}
- return &ctx->CurrentFramebuffer->ColorAttachment[i];
+ return &fb->Attachment[BUFFER_COLOR0 + i];
case GL_DEPTH_ATTACHMENT_EXT:
- return &ctx->CurrentFramebuffer->DepthAttachment;
+ return &fb->Attachment[BUFFER_DEPTH];
case GL_STENCIL_ATTACHMENT_EXT:
- return &ctx->CurrentFramebuffer->StencilAttachment;
+ return &fb->Attachment[BUFFER_STENCIL];
default:
return NULL;
}
}
-static void
-remove_attachment(GLcontext *ctx, struct gl_render_buffer_attachment *att)
+/**
+ * Remove any texture or renderbuffer attached to the given attachment
+ * point. Update reference counts, etc.
+ */
+void
+_mesa_remove_attachment(GLcontext *ctx, struct gl_renderbuffer_attachment *att)
{
if (att->Type == GL_TEXTURE) {
ASSERT(att->Texture);
- ASSERT(!att->Renderbuffer);
- att->Texture->RefCount--;
- if (att->Texture->RefCount == 0) {
- ctx->Driver.DeleteTexture(ctx, att->Texture);
+ if (ctx->Driver.FinishRenderTexture) {
+ /* tell driver we're done rendering to this texobj */
+ ctx->Driver.FinishRenderTexture(ctx, att);
}
- att->Texture = NULL;
+ _mesa_reference_texobj(&att->Texture, NULL); /* unbind */
+ ASSERT(!att->Texture);
}
- else if (att->Type == GL_RENDERBUFFER_EXT) {
- ASSERT(att->Renderbuffer);
+ if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) {
ASSERT(!att->Texture);
- att->Renderbuffer->RefCount--;
- if (att->Renderbuffer->RefCount == 0) {
- _mesa_free(att->Renderbuffer); /* XXX driver free */
- }
- att->Renderbuffer = NULL;
+ _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */
+ ASSERT(!att->Renderbuffer);
}
att->Type = GL_NONE;
+ att->Complete = GL_TRUE;
}
-static void
-set_texture_attachment(GLcontext *ctx,
- struct gl_render_buffer_attachment *att,
- struct gl_texture_object *texObj,
- GLenum texTarget, GLuint level, GLuint zoffset)
-{
- remove_attachment(ctx, att);
- att->Type = GL_TEXTURE;
- att->Texture = texObj;
+/**
+ * Bind a texture object to an attachment point.
+ * The previous binding, if any, will be removed first.
+ */
+void
+_mesa_set_texture_attachment(GLcontext *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer_attachment *att,
+ struct gl_texture_object *texObj,
+ GLenum texTarget, GLuint level, GLuint zoffset)
+{
+ if (att->Texture == texObj) {
+ /* re-attaching same texture */
+ ASSERT(att->Type == GL_TEXTURE);
+ }
+ else {
+ /* new attachment */
+ _mesa_remove_attachment(ctx, att);
+ att->Type = GL_TEXTURE;
+ assert(!att->Texture);
+ _mesa_reference_texobj(&att->Texture, texObj);
+ }
+
+ /* always update these fields */
att->TextureLevel = level;
if (IS_CUBE_FACE(texTarget)) {
att->CubeMapFace = texTarget - GL_TEXTURE_CUBE_MAP_POSITIVE_X;
att->CubeMapFace = 0;
}
att->Zoffset = zoffset;
- texObj->RefCount++;
+ att->Complete = GL_FALSE;
+
+ if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {
+ ctx->Driver.RenderTexture(ctx, fb, att);
+ }
}
-static void
-set_renderbuffer_attachment(GLcontext *ctx,
- struct gl_render_buffer_attachment *att,
- struct gl_render_buffer_object *rb)
+/**
+ * Bind a renderbuffer to an attachment point.
+ * The previous binding, if any, will be removed first.
+ */
+void
+_mesa_set_renderbuffer_attachment(GLcontext *ctx,
+ struct gl_renderbuffer_attachment *att,
+ struct gl_renderbuffer *rb)
{
- remove_attachment(ctx, att);
+ /* XXX check if re-doing same attachment, exit early */
+ _mesa_remove_attachment(ctx, att);
att->Type = GL_RENDERBUFFER_EXT;
- att->Renderbuffer = rb;
- rb->RefCount++;
+ att->Texture = NULL; /* just to be safe */
+ att->Complete = GL_FALSE;
+ _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
+}
+
+
+/**
+ * Fallback for ctx->Driver.FramebufferRenderbuffer()
+ * Attach a renderbuffer object to a framebuffer object.
+ */
+void
+_mesa_framebuffer_renderbuffer(GLcontext *ctx, struct gl_framebuffer *fb,
+ GLenum attachment, struct gl_renderbuffer *rb)
+{
+ struct gl_renderbuffer_attachment *att;
+
+ _glthread_LOCK_MUTEX(fb->Mutex);
+
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ ASSERT(att);
+ if (rb) {
+ _mesa_set_renderbuffer_attachment(ctx, att, rb);
+ }
+ else {
+ _mesa_remove_attachment(ctx, att);
+ }
+
+ _glthread_UNLOCK_MUTEX(fb->Mutex);
+}
+
+
+/**
+ * Test if an attachment point is complete and update its Complete field.
+ * \param format if GL_COLOR, this is a color attachment point,
+ * if GL_DEPTH, this is a depth component attachment point,
+ * if GL_STENCIL, this is a stencil component attachment point.
+ */
+static void
+test_attachment_completeness(const GLcontext *ctx, GLenum format,
+ struct gl_renderbuffer_attachment *att)
+{
+ assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL);
+
+ /* assume complete */
+ att->Complete = GL_TRUE;
+
+ /* Look for reasons why the attachment might be incomplete */
+ if (att->Type == GL_TEXTURE) {
+ const struct gl_texture_object *texObj = att->Texture;
+ struct gl_texture_image *texImage;
+
+ if (!texObj) {
+ att->Complete = GL_FALSE;
+ return;
+ }
+
+ texImage = texObj->Image[att->CubeMapFace][att->TextureLevel];
+ if (!texImage) {
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (texImage->Width < 1 || texImage->Height < 1) {
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {
+ att->Complete = GL_FALSE;
+ return;
+ }
+
+ if (format == GL_COLOR) {
+ if (texImage->TexFormat->BaseFormat != GL_RGB &&
+ texImage->TexFormat->BaseFormat != GL_RGBA) {
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else if (format == GL_DEPTH) {
+ if (texImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ texImage->TexFormat->BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else {
+ /* no such thing as stencil textures */
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else if (att->Type == GL_RENDERBUFFER_EXT) {
+ ASSERT(att->Renderbuffer);
+ if (!att->Renderbuffer->InternalFormat ||
+ att->Renderbuffer->Width < 1 ||
+ att->Renderbuffer->Height < 1) {
+ 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);
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else if (format == GL_DEPTH) {
+ ASSERT(att->Renderbuffer->DepthBits);
+ if (att->Renderbuffer->_BaseFormat == GL_DEPTH_COMPONENT) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else {
+ assert(format == GL_STENCIL);
+ ASSERT(att->Renderbuffer->StencilBits);
+ if (att->Renderbuffer->_BaseFormat == GL_STENCIL_INDEX) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ }
+ else {
+ ASSERT(att->Type == GL_NONE);
+ /* complete */
+ 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.
+ * 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;
+ GLenum intFormat = GL_NONE; /* color buffers' internal format */
+ GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
+ GLint i;
+ GLuint j;
+
+ assert(fb->Name != 0);
+
+ numImages = 0;
+ fb->Width = 0;
+ fb->Height = 0;
+
+ /* Start at -2 to more easily loop over all attachment points.
+ * -2: depth buffer
+ * -1: stencil buffer
+ * >=0: color buffer
+ */
+ for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {
+ struct gl_renderbuffer_attachment *att;
+ GLenum f;
+
+ /* check for attachment completeness
+ */
+ if (i == -2) {
+ att = &fb->Attachment[BUFFER_DEPTH];
+ test_attachment_completeness(ctx, GL_DEPTH, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("depth attachment incomplete", -1);
+ return;
+ }
+ }
+ else if (i == -1) {
+ att = &fb->Attachment[BUFFER_STENCIL];
+ test_attachment_completeness(ctx, GL_STENCIL, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("stencil attachment incomplete", -1);
+ return;
+ }
+ }
+ else {
+ att = &fb->Attachment[BUFFER_COLOR0 + i];
+ test_attachment_completeness(ctx, GL_COLOR, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("color attachment incomplete", i);
+ return;
+ }
+ }
+
+ /* get width, height, format of the renderbuffer/texture
+ */
+ if (att->Type == GL_TEXTURE) {
+ const struct gl_texture_image *texImg
+ = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
+ minWidth = MIN2(minWidth, texImg->Width);
+ maxWidth = MAX2(maxWidth, texImg->Width);
+ minHeight = MIN2(minHeight, texImg->Height);
+ maxHeight = MAX2(maxHeight, texImg->Height);
+ f = texImg->_BaseFormat;
+ numImages++;
+ if (f != GL_RGB && f != GL_RGBA && f != GL_DEPTH_COMPONENT
+ && f != GL_DEPTH_STENCIL_EXT) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+ fbo_incomplete("texture attachment incomplete", -1);
+ return;
+ }
+ }
+ else if (att->Type == GL_RENDERBUFFER_EXT) {
+ minWidth = MIN2(minWidth, att->Renderbuffer->Width);
+ maxWidth = MAX2(minWidth, att->Renderbuffer->Width);
+ minHeight = MIN2(minHeight, att->Renderbuffer->Height);
+ maxHeight = MAX2(minHeight, att->Renderbuffer->Height);
+ f = att->Renderbuffer->InternalFormat;
+ numImages++;
+ }
+ else {
+ assert(att->Type == GL_NONE);
+ continue;
+ }
+
+ /* Error-check width, height, format
+ */
+ if (numImages == 1) {
+ /* save format */
+ if (i >= 0)
+ intFormat = f;
+ }
+ else {
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ /* check that width, height, format are same */
+ if (minWidth != maxWidth || minHeight != maxHeight) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
+ fbo_incomplete("width or height mismatch", -1);
+ return;
+ }
+ /* check that all color buffer have same format */
+ if (intFormat != GL_NONE && f != intFormat) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+ fbo_incomplete("format mismatch", -1);
+ return;
+ }
+ }
+ }
+ }
+
+#ifndef FEATURE_OES_framebuffer_object
+ /* Check that all DrawBuffers are present */
+ for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
+ if (fb->ColorDrawBuffer[j] != GL_NONE) {
+ const struct gl_renderbuffer_attachment *att
+ = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
+ assert(att);
+ if (att->Type == GL_NONE) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
+ fbo_incomplete("missing drawbuffer", j);
+ return;
+ }
+ }
+ }
+
+ /* Check that the ReadBuffer is present */
+ if (fb->ColorReadBuffer != GL_NONE) {
+ const struct gl_renderbuffer_attachment *att
+ = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
+ assert(att);
+ if (att->Type == GL_NONE) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
+ fbo_incomplete("missing readbuffer", -1);
+ return;
+ }
+ }
+#endif
+
+ if (numImages == 0) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
+ fbo_incomplete("no attachments", -1);
+ return;
+ }
+
+ /*
+ * If we get here, the framebuffer is complete!
+ * 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->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
+ fb->Width = minWidth;
+ fb->Height = minHeight;
}
GLboolean GLAPIENTRY
_mesa_IsRenderbufferEXT(GLuint renderbuffer)
{
- struct gl_render_buffer_object *rb;
GET_CURRENT_CONTEXT(ctx);
-
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
- rb = lookup_renderbuffer(ctx, renderbuffer);
- return rb ? GL_TRUE : GL_FALSE;
+ if (renderbuffer) {
+ struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+ if (rb != NULL && rb != &DummyRenderbuffer)
+ return GL_TRUE;
+ }
+ return GL_FALSE;
}
void GLAPIENTRY
_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
{
- struct gl_render_buffer_object *newRb, *oldRb;
+ struct gl_renderbuffer *newRb;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
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 (renderbuffer) {
- newRb = lookup_renderbuffer(ctx, renderbuffer);
+ newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
if (newRb == &DummyRenderbuffer) {
/* ID was reserved, but no real renderbuffer object made yet */
newRb = NULL;
}
if (!newRb) {
/* create new renderbuffer object */
- newRb = new_renderbuffer(ctx, renderbuffer);
+ newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer);
if (!newRb) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT");
return;
}
+ ASSERT(newRb->AllocStorage);
_mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb);
+ newRb->RefCount = 1; /* referenced by hash table */
}
- newRb->RefCount++;
}
else {
newRb = NULL;
}
- oldRb = ctx->CurrentRenderbuffer;
- if (oldRb) {
- oldRb->RefCount--;
- if (oldRb->RefCount == 0) {
- _mesa_free(oldRb); /* XXX device driver function */
- }
- }
-
ASSERT(newRb != &DummyRenderbuffer);
- ctx->CurrentRenderbuffer = newRb;
+ _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb);
}
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
for (i = 0; i < n; i++) {
- if (renderbuffers[i]) {
- struct gl_render_buffer_object *rb;
- rb = lookup_renderbuffer(ctx, renderbuffers[i]);
+ if (renderbuffers[i] > 0) {
+ struct gl_renderbuffer *rb;
+ rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]);
if (rb) {
- /* remove from hash table immediately, to free the ID */
+ /* check if deleting currently bound renderbuffer object */
+ if (rb == ctx->CurrentRenderbuffer) {
+ /* bind default */
+ ASSERT(rb->RefCount >= 2);
+ _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+ }
+
+ /* Remove from hash table immediately, to free the ID.
+ * But the object will not be freed until it's no longer
+ * referenced anywhere else.
+ */
_mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]);
if (rb != &DummyRenderbuffer) {
- /* But the object will not be freed until it's no longer
- * bound in any context.
- */
- rb->RefCount--;
- if (rb->RefCount == 0) {
- _mesa_free(rb); /* XXX call device driver function */
- }
+ /* no longer referenced by hash table */
+ _mesa_reference_renderbuffer(&rb, NULL);
}
}
}
for (i = 0; i < n; i++) {
GLuint name = first + i;
-
+ renderbuffers[i] = name;
/* insert dummy placeholder into hash table */
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
_mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer);
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-
- renderbuffers[i] = name;
}
}
-static GLenum
-base_internal_format(GLcontext *ctx, GLenum internalFormat)
+/**
+ * Given an internal format token for a render buffer, return the
+ * corresponding base format.
+ * This is very similar to _mesa_base_tex_format() but the set of valid
+ * internal formats is somewhat different.
+ *
+ * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT
+ * GL_DEPTH_STENCIL_EXT or zero if error.
+ */
+GLenum
+_mesa_base_fbo_format(GLcontext *ctx, GLenum internalFormat)
{
switch (internalFormat) {
- /*case GL_ALPHA:*/
- case GL_ALPHA4:
- case GL_ALPHA8:
- case GL_ALPHA12:
- case GL_ALPHA16:
- return GL_ALPHA;
- /*case GL_LUMINANCE:*/
- case GL_LUMINANCE4:
- case GL_LUMINANCE8:
- case GL_LUMINANCE12:
- case GL_LUMINANCE16:
- return GL_LUMINANCE;
- /*case GL_LUMINANCE_ALPHA:*/
- case GL_LUMINANCE4_ALPHA4:
- case GL_LUMINANCE6_ALPHA2:
- case GL_LUMINANCE8_ALPHA8:
- case GL_LUMINANCE12_ALPHA4:
- case GL_LUMINANCE12_ALPHA12:
- case GL_LUMINANCE16_ALPHA16:
- return GL_LUMINANCE_ALPHA;
- /*case GL_INTENSITY:*/
- case GL_INTENSITY4:
- case GL_INTENSITY8:
- case GL_INTENSITY12:
- case GL_INTENSITY16:
- return GL_INTENSITY;
- /*case GL_RGB:*/
- case GL_R3_G3_B2:
- case GL_RGB4:
- case GL_RGB5:
- case GL_RGB8:
- case GL_RGB10:
- case GL_RGB12:
- case GL_RGB16:
- return GL_RGB;
- /*case GL_RGBA:*/
- case GL_RGBA2:
- case GL_RGBA4:
- case GL_RGB5_A1:
- case GL_RGBA8:
- case GL_RGB10_A2:
- case GL_RGBA12:
- case GL_RGBA16:
- return GL_RGBA;
- case GL_STENCIL_INDEX1_EXT:
- case GL_STENCIL_INDEX4_EXT:
- case GL_STENCIL_INDEX8_EXT:
- case GL_STENCIL_INDEX16_EXT:
- return GL_STENCIL_INDEX;
- default:
- ; /* fallthrough */
- }
-
- if (ctx->Extensions.SGIX_depth_texture) {
- switch (internalFormat) {
- /*case GL_DEPTH_COMPONENT:*/
- case GL_DEPTH_COMPONENT16_SGIX:
- case GL_DEPTH_COMPONENT24_SGIX:
- case GL_DEPTH_COMPONENT32_SGIX:
- return GL_DEPTH_COMPONENT;
- default:
- ; /* fallthrough */
- }
- }
-
- return 0;
+ case GL_RGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return GL_RGB;
+ case GL_RGBA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return GL_RGBA;
+ case GL_STENCIL_INDEX:
+ case GL_STENCIL_INDEX1_EXT:
+ case GL_STENCIL_INDEX4_EXT:
+ case GL_STENCIL_INDEX8_EXT:
+ case GL_STENCIL_INDEX16_EXT:
+ return GL_STENCIL_INDEX;
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ if (ctx->Extensions.EXT_packed_depth_stencil)
+ return GL_DEPTH_STENCIL_EXT;
+ else
+ return 0;
+ /* XXX add floating point formats eventually */
+ default:
+ return 0;
+ }
}
_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
GLsizei width, GLsizei height)
{
+ struct gl_renderbuffer *rb;
GLenum baseFormat;
GET_CURRENT_CONTEXT(ctx);
return;
}
- baseFormat = base_internal_format(ctx, internalFormat);
+ baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
if (baseFormat == 0) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glRenderbufferStorageEXT(internalFormat)");
return;
}
- if (width < 1 || width > ctx->Const.MaxRenderbufferSize) {
+ if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
_mesa_error(ctx, GL_INVALID_VALUE, "glRenderbufferStorageEXT(width)");
return;
}
- if (height < 1 || height > ctx->Const.MaxRenderbufferSize) {
+ if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
_mesa_error(ctx, GL_INVALID_VALUE, "glRenderbufferStorageEXT(height)");
return;
}
- /* XXX this check isn't in the spec, but seems necessary */
- if (!ctx->CurrentRenderbuffer) {
+ rb = ctx->CurrentRenderbuffer;
+
+ if (!rb) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glRenderbufferStorageEXT");
return;
}
- if (ctx->CurrentRenderbuffer->Data) {
- /* XXX device driver free */
- _mesa_free(ctx->CurrentRenderbuffer->Data);
- }
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
- /* XXX device driver allocate, fix size */
- ctx->CurrentRenderbuffer->Data = _mesa_malloc(width * height * 4);
- if (ctx->CurrentRenderbuffer->Data == NULL) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glRenderbufferStorageEXT");
+ if (rb->InternalFormat == internalFormat &&
+ rb->Width == (GLuint) width &&
+ rb->Height == (GLuint) height) {
+ /* no change in allocation needed */
return;
}
- ctx->CurrentRenderbuffer->InternalFormat = internalFormat;
- ctx->CurrentRenderbuffer->Width = width;
- ctx->CurrentRenderbuffer->Height = height;
+
+ /* 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;
+
+ /* 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->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;
+ }
+ else {
+ /* Probably ran out of memory - clear the fields */
+ rb->Width = 0;
+ rb->Height = 0;
+ 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;
+ }
+
+ /*
+ test_framebuffer_completeness(ctx, fb);
+ */
+ /* XXX if this renderbuffer is attached anywhere, invalidate attachment
+ * points???
+ */
}
return;
}
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
switch (pname) {
case GL_RENDERBUFFER_WIDTH_EXT:
*params = ctx->CurrentRenderbuffer->Width;
case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
*params = ctx->CurrentRenderbuffer->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;
+ break;
default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetRenderbufferParameterivEXT(target)");
GLboolean GLAPIENTRY
_mesa_IsFramebufferEXT(GLuint framebuffer)
{
- struct gl_frame_buffer_object *fb;
GET_CURRENT_CONTEXT(ctx);
-
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+ if (framebuffer) {
+ struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer);
+ if (rb != NULL && rb != &DummyFramebuffer)
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
- fb = lookup_framebuffer(ctx, framebuffer);
- return fb ? GL_TRUE : GL_FALSE;
+
+static void
+check_begin_texture_render(GLcontext *ctx, struct gl_framebuffer *fb)
+{
+ GLuint i;
+ ASSERT(ctx->Driver.RenderTexture);
+ 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]) {
+ ctx->Driver.RenderTexture(ctx, fb, att);
+ }
+ }
+}
+
+
+/**
+ * Examine all the framebuffer's attachments to see if any are textures.
+ * If so, call ctx->Driver.FinishRenderTexture() for each texture to
+ * notify the device driver that the texture image may have changed.
+ */
+static void
+check_end_texture_render(GLcontext *ctx, struct gl_framebuffer *fb)
+{
+ if (ctx->Driver.FinishRenderTexture) {
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+ if (att->Texture && att->Renderbuffer) {
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ }
+ }
+ }
}
void GLAPIENTRY
_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
{
- struct gl_frame_buffer_object *newFb, *oldFb;
+ struct gl_framebuffer *newFb, *newFbread;
+ GLboolean bindReadBuf, bindDrawBuf;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
- if (target != GL_FRAMEBUFFER_EXT) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glBindFramebufferEXT(target)");
+ if (!ctx->Extensions.EXT_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBindFramebufferEXT(unsupported)");
return;
}
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+ bindDrawBuf = GL_TRUE;
+ bindReadBuf = GL_FALSE;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+ bindDrawBuf = GL_FALSE;
+ bindReadBuf = GL_TRUE;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ bindDrawBuf = GL_TRUE;
+ bindReadBuf = GL_TRUE;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ if (ctx->Driver.Flush) {
+ ctx->Driver.Flush(ctx);
+ }
+
if (framebuffer) {
- newFb = lookup_framebuffer(ctx, framebuffer);
+ /* Binding a user-created framebuffer object */
+ newFb = _mesa_lookup_framebuffer(ctx, framebuffer);
if (newFb == &DummyFramebuffer) {
+ /* ID was reserved, but no real framebuffer object made yet */
newFb = NULL;
}
if (!newFb) {
/* create new framebuffer object */
- newFb = new_framebuffer(ctx, framebuffer);
+ newFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
if (!newFb) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
return;
}
_mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newFb);
}
- newFb->RefCount++;
+ newFbread = newFb;
}
else {
- newFb = NULL;
+ /* Binding the window system framebuffer (which was originally set
+ * with MakeCurrent).
+ */
+ newFb = ctx->WinSysDrawBuffer;
+ newFbread = ctx->WinSysReadBuffer;
}
- oldFb = ctx->CurrentFramebuffer;
- if (oldFb) {
- oldFb->RefCount--;
- if (oldFb->RefCount == 0) {
- _mesa_free(oldFb); /* XXX device driver function */
- }
+ ASSERT(newFb);
+ ASSERT(newFb != &DummyFramebuffer);
+
+ /*
+ * XXX check if re-binding same buffer and skip some of this code.
+ */
+
+ if (bindReadBuf) {
+ _mesa_reference_framebuffer(&ctx->ReadBuffer, newFbread);
}
- ASSERT(newFb != &DummyFramebuffer);
+ if (bindDrawBuf) {
+ /* check if old FB had any texture attachments */
+ check_end_texture_render(ctx, ctx->DrawBuffer);
- ctx->CurrentFramebuffer = newFb;
+ /* check if time to delete this framebuffer */
+ _mesa_reference_framebuffer(&ctx->DrawBuffer, newFb);
+
+ if (newFb->Name != 0) {
+ /* check if newly bound framebuffer has any texture attachments */
+ check_begin_texture_render(ctx, newFb);
+ }
+ }
+
+ if (ctx->Driver.BindFramebuffer) {
+ ctx->Driver.BindFramebuffer(ctx, target, newFb, newFbread);
+ }
}
GET_CURRENT_CONTEXT(ctx);
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]) {
- struct gl_frame_buffer_object *fb;
- fb = lookup_framebuffer(ctx, framebuffers[i]);
+ if (framebuffers[i] > 0) {
+ struct gl_framebuffer *fb;
+ fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
if (fb) {
+ ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
+
+ /* check if deleting currently bound framebuffer object */
+ if (fb == ctx->DrawBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+ }
+
/* remove from hash table immediately, to free the ID */
_mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);
/* But the object will not be freed until it's no longer
* bound in any context.
*/
- fb->RefCount--;
- if (fb->RefCount == 0) {
- _mesa_free(fb); /* XXX call device driver function */
- }
+ _mesa_unreference_framebuffer(&fb);
}
}
}
for (i = 0; i < n; i++) {
GLuint name = first + i;
-
- /* insert into hash table */
+ framebuffers[i] = name;
+ /* insert dummy placeholder into hash table */
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
_mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer);
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
-
- framebuffers[i] = name;
}
}
GLenum GLAPIENTRY
_mesa_CheckFramebufferStatusEXT(GLenum target)
{
+ struct gl_framebuffer *buffer;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FRAMEBUFFER_STATUS_ERROR_EXT);
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
- if (target != GL_FRAMEBUFFER_EXT) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glCheckFramebufferStatus(target)");
- return GL_FRAMEBUFFER_STATUS_ERROR_EXT;
- }
-
- /* return one of:
- GL_FRAMEBUFFER_COMPLETE_EXT
- GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
- GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
- GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT
- GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
- GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
- GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
- GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
- GL_FRAMEBUFFER_UNSUPPORTED_EXT
- GL_FRAMEBUFFER_STATUS_ERROR_EXT
- */
- return GL_FRAMEBUFFER_STATUS_ERROR_EXT;
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+ return 0;
+ }
+ buffer = ctx->DrawBuffer;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+ return 0;
+ }
+ buffer = ctx->ReadBuffer;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ buffer = ctx->DrawBuffer;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+ return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
+ }
+
+ if (buffer->Name == 0) {
+ /* The window system / default framebuffer is always complete */
+ return GL_FRAMEBUFFER_COMPLETE_EXT;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ _mesa_test_framebuffer_completeness(ctx, buffer);
+ return buffer->_Status;
}
/**
- * Do error checking common to glFramebufferTexture1D/2D/3DEXT.
- * \return GL_TRUE if any error, GL_FALSE otherwise
+ * Common code called by glFramebufferTexture1D/2D/3DEXT().
*/
-static GLboolean
-error_check_framebuffer_texture(GLcontext *ctx, GLuint dims,
- GLenum target, GLenum attachment,
- GLenum textarget, GLuint texture, GLint level)
+static void
+framebuffer_texture(GLcontext *ctx, const char *caller, GLenum target,
+ GLenum attachment, GLenum textarget, GLuint texture,
+ GLint level, GLint zoffset)
{
- ASSERT(dims >= 1 && dims <= 3);
+ struct gl_renderbuffer_attachment *att;
+ struct gl_texture_object *texObj = NULL;
+ struct gl_framebuffer *fb;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
if (target != GL_FRAMEBUFFER_EXT) {
_mesa_error(ctx, GL_INVALID_ENUM,
- "glFramebufferTexture%dDEXT(target)", dims);
- return GL_TRUE;
+ "glFramebufferTexture%sEXT(target)", caller);
+ return;
}
- if (ctx->CurrentFramebuffer == NULL) {
+ fb = ctx->DrawBuffer;
+ ASSERT(fb);
+
+ /* check framebuffer binding */
+ if (fb->Name == 0) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glFramebufferTexture%dDEXT", dims);
- return GL_TRUE;
+ "glFramebufferTexture%sEXT", caller);
+ return;
}
- /* only check textarget, level if texture ID is non-zero*/
+
+ /* The textarget, level, and zoffset parameters are only validated if
+ * texture is non-zero.
+ */
if (texture) {
- if ((dims == 1 && textarget != GL_TEXTURE_1D) ||
- (dims == 3 && textarget != GL_TEXTURE_3D) ||
- (dims == 2 && textarget != GL_TEXTURE_2D &&
- textarget != GL_TEXTURE_RECTANGLE_ARB &&
- !IS_CUBE_FACE(textarget))) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glFramebufferTexture%dDEXT(textarget)", dims);
- return GL_TRUE;
+ GLboolean err = GL_TRUE;
+
+ texObj = _mesa_lookup_texture(ctx, texture);
+ if (texObj != NULL) {
+ if (textarget == 0) {
+ err = (texObj->Target != GL_TEXTURE_3D) &&
+ (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
+ (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
+ }
+ else {
+ err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
+ ? !IS_CUBE_FACE(textarget)
+ : (texObj->Target != textarget);
+ }
+ }
+
+ if (err) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture%sEXT(texture target mismatch)",
+ caller);
+ return;
}
- if ((level < 0) || level >= _mesa_max_texture_levels(ctx, textarget)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glFramebufferTexture%dDEXT(level)", dims);
- return GL_TRUE;
+ if (texObj->Target == GL_TEXTURE_3D) {
+ const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
+ if (zoffset < 0 || zoffset >= maxSize) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(zoffset)", caller);
+ return;
+ }
+ }
+ else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
+ (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
+ if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(layer)", caller);
+ return;
+ }
+ }
+
+
+ if ((level < 0) ||
+ (level >= _mesa_max_texture_levels(ctx, texObj->Target))) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(level)", caller);
+ return;
}
}
- return GL_FALSE;
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ if (att == NULL) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture%sEXT(attachment)", caller);
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+ /* 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);
+ }
+ else {
+ _mesa_remove_attachment(ctx, att);
+ }
+ _glthread_UNLOCK_MUTEX(fb->Mutex);
}
+
void GLAPIENTRY
_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
GLenum textarget, GLuint texture, GLint level)
{
- struct gl_render_buffer_attachment *att;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (error_check_framebuffer_texture(ctx, 1, target, attachment,
- textarget, texture, level))
- return;
-
- ASSERT(textarget == GL_TEXTURE_1D);
-
- att = get_attachment(ctx, attachment);
- if (att == NULL) {
+ if ((texture != 0) && (textarget != GL_TEXTURE_1D)) {
_mesa_error(ctx, GL_INVALID_ENUM,
- "glFramebufferTexture1DEXT(attachment)");
+ "glFramebufferTexture1DEXT(textarget)");
return;
}
- if (texture) {
- struct gl_texture_object *texObj = (struct gl_texture_object *)
- _mesa_HashLookup(ctx->Shared->TexObjects, texture);
- if (!texObj) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glFramebufferTexture1DEXT(texture)");
- return;
- }
- if (texObj->Target != textarget) {
- _mesa_error(ctx, GL_INVALID_OPERATION, /* XXX correct error? */
- "glFramebufferTexture1DEXT(texture target)");
- return;
- }
- set_texture_attachment(ctx, att, texObj, textarget, level, 0);
- }
- else {
- remove_attachment(ctx, att);
- }
-
- /* XXX call a driver function to signal new attachment? */
+ framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
+ level, 0);
}
_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
GLenum textarget, GLuint texture, GLint level)
{
- struct gl_render_buffer_attachment *att;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (error_check_framebuffer_texture(ctx, 2, target, attachment,
- textarget, texture, level))
- return;
-
- ASSERT(textarget == GL_TEXTURE_2D ||
- textarget == GL_TEXTURE_RECTANGLE_ARB ||
- IS_CUBE_FACE(textarget));
-
- att = get_attachment(ctx, attachment);
- if (att == NULL) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glFramebufferTexture2DEXT(attachment)");
+ if ((texture != 0) &&
+ (textarget != GL_TEXTURE_2D) &&
+ (textarget != GL_TEXTURE_RECTANGLE_ARB) &&
+ (!IS_CUBE_FACE(textarget))) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture2DEXT(textarget)");
return;
}
- if (texture) {
- struct gl_texture_object *texObj = (struct gl_texture_object *)
- _mesa_HashLookup(ctx->Shared->TexObjects, texture);
- if (!texObj) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glFramebufferTexture2DEXT(texture)");
- return;
- }
- if ((texObj->Target == GL_TEXTURE_2D && textarget != GL_TEXTURE_2D) ||
- (texObj->Target == GL_TEXTURE_RECTANGLE_ARB
- && textarget != GL_TEXTURE_RECTANGLE_ARB) ||
- (texObj->Target == GL_TEXTURE_CUBE_MAP
- && !IS_CUBE_FACE(textarget))) {
- _mesa_error(ctx, GL_INVALID_OPERATION, /* XXX correct error? */
- "glFramebufferTexture2DEXT(texture target)");
- return;
- }
- set_texture_attachment(ctx, att, texObj, textarget, level, 0);
- }
- else {
- remove_attachment(ctx, att);
- }
-
+ framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
+ level, 0);
}
GLenum textarget, GLuint texture,
GLint level, GLint zoffset)
{
- struct gl_render_buffer_attachment *att;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (error_check_framebuffer_texture(ctx, 3, target, attachment,
- textarget, texture, level))
- return;
-
- ASSERT(textarget == GL_TEXTURE_3D);
-
- att = get_attachment(ctx, attachment);
- if (att == NULL) {
+ if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {
_mesa_error(ctx, GL_INVALID_ENUM,
- "glFramebufferTexture1DEXT(attachment)");
+ "glFramebufferTexture3DEXT(textarget)");
return;
}
- if (texture) {
- struct gl_texture_object *texObj = (struct gl_texture_object *)
- _mesa_HashLookup(ctx->Shared->TexObjects, texture);
- if (!texObj) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glFramebufferTexture3DEXT(texture)");
- return;
- }
- if (texObj->Target != textarget) {
- _mesa_error(ctx, GL_INVALID_OPERATION, /* XXX correct error? */
- "glFramebufferTexture3DEXT(texture target)");
- return;
- }
- if (zoffset >= texObj->Image[0][level]->Depth) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glFramebufferTexture3DEXT(zoffset)");
- return;
- }
- set_texture_attachment(ctx, att, texObj, textarget, level, zoffset);
- }
- else {
- remove_attachment(ctx, att);
- }
+ framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,
+ level, zoffset);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
+ GLuint texture, GLint level, GLint layer)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
+ level, layer);
}
GLenum renderbufferTarget,
GLuint renderbuffer)
{
- struct gl_render_buffer_attachment *att;
+ struct gl_renderbuffer_attachment *att;
+ struct gl_framebuffer *fb;
+ struct gl_renderbuffer *rb;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
- if (target != GL_FRAMEBUFFER_EXT) {
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(target)");
+ return;
+ }
+ fb = ctx->DrawBuffer;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(target)");
+ return;
+ }
+ fb = ctx->ReadBuffer;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ fb = ctx->DrawBuffer;
+ break;
+ default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glFramebufferRenderbufferEXT(target)");
return;
}
if (renderbufferTarget != GL_RENDERBUFFER_EXT) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glFramebufferRenderbufferEXT(renderbufferTarget)");
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(renderbufferTarget)");
return;
}
- if (ctx->CurrentFramebuffer == NULL) {
+ if (fb->Name == 0) {
+ /* Can't attach new renderbuffers to a window system framebuffer */
_mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
return;
}
- att = get_attachment(ctx, attachment);
+ att = _mesa_get_attachment(ctx, fb, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glFramebufferRenderbufferEXT(attachment)");
}
if (renderbuffer) {
- struct gl_render_buffer_object *rb;
- rb = lookup_renderbuffer(ctx, renderbuffer);
+ rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
if (!rb) {
- _mesa_error(ctx, GL_INVALID_VALUE,
+ _mesa_error(ctx, GL_INVALID_OPERATION,
"glFramebufferRenderbufferEXT(renderbuffer)");
return;
}
- set_renderbuffer_attachment(ctx, att, rb);
}
else {
- remove_attachment(ctx, att);
+ /* remove renderbuffer attachment */
+ rb = NULL;
}
+
+ 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);
+
+ /* Some subsequent GL commands may depend on the framebuffer's visual
+ * after the binding is updated. Update visual info now.
+ */
+ _mesa_update_framebuffer_visual(fb);
}
_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
GLenum pname, GLint *params)
{
- const struct gl_render_buffer_attachment *att;
+ const struct gl_renderbuffer_attachment *att;
+ struct gl_framebuffer *buffer;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
- if (target != GL_FRAMEBUFFER_EXT) {
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(target)");
+ return;
+ }
+ buffer = ctx->DrawBuffer;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(target)");
+ return;
+ }
+ buffer = ctx->ReadBuffer;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ buffer = ctx->DrawBuffer;
+ break;
+ default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetFramebufferAttachmentParameterivEXT(target)");
return;
}
- if (ctx->CurrentFramebuffer == NULL) {
+ if (buffer->Name == 0) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetFramebufferAttachmentParameterivEXT");
return;
}
- att = get_attachment(ctx, attachment);
+ att = _mesa_get_attachment(ctx, buffer, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetFramebufferAttachmentParameterivEXT(attachment)");
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);
+
switch (pname) {
case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
*params = att->Type;
return;
case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:
if (att->Type == GL_TEXTURE) {
- *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;
+ if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) {
+ *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;
+ }
+ else {
+ *params = 0;
+ }
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
return;
case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:
if (att->Type == GL_TEXTURE) {
- *params = att->Zoffset;
+ if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {
+ *params = att->Zoffset;
+ }
+ else {
+ *params = 0;
+ }
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
switch (target) {
case GL_TEXTURE_1D:
case GL_TEXTURE_2D:
case GL_TEXTURE_3D:
case GL_TEXTURE_CUBE_MAP:
+ /* OK, legal value */
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)");
texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
texObj = _mesa_select_tex_object(ctx, texUnit, target);
- /* XXX this might not handle cube maps correctly */
- _mesa_generate_mipmap(ctx, target, texUnit, texObj);
+ _mesa_lock_texture(ctx, texObj);
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ int 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
+void GLAPIENTRY
+_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+ GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+ GLbitfield mask, GLenum filter)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ if (!ctx->ReadBuffer) {
+ /* XXX */
+ }
+
+ /* check for complete framebuffers */
+ if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
+ ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glBlitFramebufferEXT(incomplete draw/read buffers)");
+ return;
+ }
+
+ if (filter != GL_NEAREST && filter != GL_LINEAR) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
+ return;
+ }
+
+ if (mask & ~(GL_COLOR_BUFFER_BIT |
+ GL_DEPTH_BUFFER_BIT |
+ GL_STENCIL_BUFFER_BIT)) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
+ return;
+ }
+
+ /* depth/stencil must be blitted with nearest filtering */
+ if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
+ && filter != GL_NEAREST) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
+ return;
+ }
+
+ 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) {
+ _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) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(depth buffer size mismatch");
+ return;
+ }
+ }
+
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
+ return;
+ }
+
+ ASSERT(ctx->Driver.BlitFramebuffer);
+ ctx->Driver.BlitFramebuffer(ctx,
+ srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1,
+ mask, filter);
}
+#endif /* FEATURE_EXT_framebuffer_blit */
projects / mesa.git / blobdiff