diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/fbobject.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/fbobject.c | 1357 |
1 files changed, 0 insertions, 1357 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/fbobject.c b/nx-X11/extras/Mesa/src/mesa/main/fbobject.c deleted file mode 100644 index b16e13a22..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/fbobject.c +++ /dev/null @@ -1,1357 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * Authors: - * Brian Paul - */ - - -#include "context.h" -#include "fbobject.h" -#include "framebuffer.h" -#include "hash.h" -#include "renderbuffer.h" -#include "teximage.h" -#include "texstore.h" - - -/** - * 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_POSITIVE_X && \ - (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) - - -/** - * Helper routine for getting a gl_renderbuffer. - */ -static struct gl_renderbuffer * -lookup_renderbuffer(GLcontext *ctx, GLuint id) -{ - struct gl_renderbuffer *rb; - - if (id == 0) - return NULL; - - rb = (struct gl_renderbuffer *) - _mesa_HashLookup(ctx->Shared->RenderBuffers, id); - return rb; -} - - -/** - * Helper routine for getting a gl_framebuffer. - */ -static struct gl_framebuffer * -lookup_framebuffer(GLcontext *ctx, GLuint id) -{ - struct gl_framebuffer *fb; - - if (id == 0) - return NULL; - - fb = (struct gl_framebuffer *) - _mesa_HashLookup(ctx->Shared->FrameBuffers, id); - return fb; -} - - -/** - * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding - * gl_renderbuffer_attachment object. - */ -static struct gl_renderbuffer_attachment * -get_attachment(GLcontext *ctx, struct gl_framebuffer *fb, GLenum attachment) -{ - GLuint i; - - switch (attachment) { - case GL_COLOR_ATTACHMENT0_EXT: - case GL_COLOR_ATTACHMENT1_EXT: - case GL_COLOR_ATTACHMENT2_EXT: - case GL_COLOR_ATTACHMENT3_EXT: - case GL_COLOR_ATTACHMENT4_EXT: - case GL_COLOR_ATTACHMENT5_EXT: - case GL_COLOR_ATTACHMENT6_EXT: - case GL_COLOR_ATTACHMENT7_EXT: - case GL_COLOR_ATTACHMENT8_EXT: - case GL_COLOR_ATTACHMENT9_EXT: - case GL_COLOR_ATTACHMENT10_EXT: - case GL_COLOR_ATTACHMENT11_EXT: - case GL_COLOR_ATTACHMENT12_EXT: - case GL_COLOR_ATTACHMENT13_EXT: - case GL_COLOR_ATTACHMENT14_EXT: - case GL_COLOR_ATTACHMENT15_EXT: - i = attachment - GL_COLOR_ATTACHMENT0_EXT; - if (i >= ctx->Const.MaxColorAttachments) { - return NULL; - } - return &fb->Attachment[BUFFER_COLOR0 + i]; - case GL_DEPTH_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_DEPTH]; - case GL_STENCIL_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_STENCIL]; - default: - return NULL; - } -} - - -/** - * 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); - if (att->Renderbuffer) { - /* delete/remove the 'wrapper' renderbuffer */ - /* XXX do we really want to do this??? */ - att->Renderbuffer->Delete(att->Renderbuffer); - att->Renderbuffer = NULL; - } - att->Texture->RefCount--; - if (att->Texture->RefCount == 0) { - ctx->Driver.DeleteTexture(ctx, att->Texture); - } - att->Texture = NULL; - } - else if (att->Type == GL_RENDERBUFFER_EXT) { - ASSERT(att->Renderbuffer); - ASSERT(!att->Texture); - att->Renderbuffer->RefCount--; - if (att->Renderbuffer->RefCount == 0) { - att->Renderbuffer->Delete(att->Renderbuffer); - } - att->Renderbuffer = NULL; - } - att->Type = GL_NONE; - att->Complete = GL_TRUE; -} - - -/** - * 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_renderbuffer_attachment *att, - struct gl_texture_object *texObj, - GLenum texTarget, GLuint level, GLuint zoffset) -{ - _mesa_remove_attachment(ctx, att); - att->Type = GL_TEXTURE; - att->Texture = texObj; - att->TextureLevel = level; - if (IS_CUBE_FACE(texTarget)) { - att->CubeMapFace = texTarget - GL_TEXTURE_CUBE_MAP_POSITIVE_X; - } - else { - att->CubeMapFace = 0; - } - att->Zoffset = zoffset; - att->Complete = GL_FALSE; - - texObj->RefCount++; - - /* XXX when we attach to a texture, we should probably set the - * att->Renderbuffer pointer to a "wrapper renderbuffer" which - * makes the texture image look like renderbuffer. - */ -} - - -/** - * 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) -{ - _mesa_remove_attachment(ctx, att); - att->Type = GL_RENDERBUFFER_EXT; - att->Renderbuffer = rb; - att->Texture = NULL; /* just to be safe */ - att->Complete = GL_FALSE; - rb->RefCount++; -} - - -/** - * Fallback for ctx->Driver.FramebufferRenderbuffer() - * Sets a framebuffer attachment to a particular renderbuffer. - * The framebuffer in question is ctx->DrawBuffer. - * \sa _mesa_renderbuffer_texture - */ -void -_mesa_framebuffer_renderbuffer(GLcontext *ctx, - struct gl_renderbuffer_attachment *att, - struct gl_renderbuffer *rb) -{ - if (rb) { - _mesa_set_renderbuffer_attachment(ctx, att, rb); - } - else { - _mesa_remove_attachment(ctx, att); - } -} - - -/** - * 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) { - att->Complete = GL_FALSE; - return; - } - } - else { - /* no such thing as stencil textures */ - att->Complete = GL_FALSE; - return; - } - } - else if (att->Type == GL_RENDERBUFFER_EXT) { - if (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) { - att->Complete = GL_FALSE; - return; - } - } - else if (format == GL_DEPTH) { - if (att->Renderbuffer->_BaseFormat != GL_DEPTH_COMPONENT) { - att->Complete = GL_FALSE; - return; - } - } - else { - assert(format == GL_STENCIL); - if (att->Renderbuffer->_BaseFormat != GL_STENCIL_INDEX) { - att->Complete = GL_FALSE; - return; - } - } - } - else { - ASSERT(att->Type == GL_NONE); - /* complete */ - return; - } -} - - -/** - * 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, width = 0, height = 0; - GLenum intFormat = GL_NONE; - GLuint w = 0, h = 0; - GLint i; - - assert(fb->Name != 0); - - numImages = 0; - fb->Width = 0; - fb->Height = 0; - - /* Start at -2 to more easily loop over all attachment points */ - for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) { - struct gl_renderbuffer_attachment *att; - GLenum f; - - 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; - 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; - 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; - return; - } - } - - if (att->Type == GL_TEXTURE) { - w = att->Texture->Image[att->CubeMapFace][att->TextureLevel]->Width; - h = att->Texture->Image[att->CubeMapFace][att->TextureLevel]->Height; - f = att->Texture->Image[att->CubeMapFace][att->TextureLevel]->Format; - numImages++; - if (f != GL_RGB && f != GL_RGBA && f != GL_DEPTH_COMPONENT) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT; - return; - } - } - else if (att->Type == GL_RENDERBUFFER_EXT) { - w = att->Renderbuffer->Width; - h = att->Renderbuffer->Height; - f = att->Renderbuffer->InternalFormat; - numImages++; - } - else { - assert(att->Type == GL_NONE); - continue; - } - - if (numImages == 1) { - /* set required width, height and format */ - width = w; - height = h; - 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; - return; - } - if (intFormat != GL_NONE && f != intFormat) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT; - return; - } - } - } - - /* Check that all DrawBuffers are present */ - for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { - if (fb->ColorDrawBuffer[i] != GL_NONE) { - const struct gl_renderbuffer_attachment *att - = get_attachment(ctx, fb, fb->ColorDrawBuffer[i]); - assert(att); - if (att->Type == GL_NONE) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT; - return; - } - } - } - - /* Check that the ReadBuffer is present */ - if (fb->ColorReadBuffer != GL_NONE) { - const struct gl_renderbuffer_attachment *att - = get_attachment(ctx, fb, fb->ColorReadBuffer); - assert(att); - if (att->Type == GL_NONE) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT; - return; - } - } - - /* Check if any renderbuffer is attached more than once */ - for (i = 0; i < BUFFER_COUNT - 1; i++) { - struct gl_renderbuffer *rb_i = fb->Attachment[i].Renderbuffer; - if (rb_i) { - GLint j; - for (j = i + 1; j < BUFFER_COUNT; j++) { - struct gl_renderbuffer *rb_j = fb->Attachment[j].Renderbuffer; - if (rb_i == rb_j) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT; - return; - } - } - } - } - - - if (numImages == 0) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT; - return; - } - - /* - * If we get here, the framebuffer is complete! - */ - fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT; - fb->Width = w; - fb->Height = h; -} - - -GLboolean GLAPIENTRY -_mesa_IsRenderbufferEXT(GLuint renderbuffer) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - if (renderbuffer) { - struct gl_renderbuffer *rb = 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_renderbuffer *newRb, *oldRb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glBindRenderbufferEXT(target)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (renderbuffer) { - newRb = 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 = 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++; - } - else { - newRb = NULL; - } - - oldRb = ctx->CurrentRenderbuffer; - if (oldRb) { - oldRb->RefCount--; - if (oldRb->RefCount == 0) { - oldRb->Delete(oldRb); - } - } - - ASSERT(newRb != &DummyRenderbuffer); - - ctx->CurrentRenderbuffer = newRb; -} - - -void GLAPIENTRY -_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers) -{ - GLint i; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - for (i = 0; i < n; i++) { - if (renderbuffers[i] > 0) { - struct gl_renderbuffer *rb; - rb = lookup_renderbuffer(ctx, renderbuffers[i]); - if (rb) { - /* 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 */ - _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) { - rb->Delete(rb); - } - } - } - } - } -} - - -void GLAPIENTRY -_mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)"); - return; - } - - if (!renderbuffers) - return; - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n); - - 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); - } -} - - -/** - * Given an internal format token for a render buffer, return the - * corresponding base format. - * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT - * or zero if error. - */ -static GLenum -base_internal_format(GLcontext *ctx, GLenum internalFormat) -{ - switch (internalFormat) { - 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; - /* XXX add floating point formats eventually */ - default: - return 0; - } -} - - -void GLAPIENTRY -_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat, - GLsizei width, GLsizei height) -{ - 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)"); - return; - } - - baseFormat = base_internal_format(ctx, internalFormat); - if (baseFormat == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glRenderbufferStorageEXT(internalFormat)"); - return; - } - - if (width < 1 || width > ctx->Const.MaxRenderbufferSize) { - _mesa_error(ctx, GL_INVALID_VALUE, "glRenderbufferStorageEXT(width)"); - return; - } - - if (height < 1 || height > ctx->Const.MaxRenderbufferSize) { - _mesa_error(ctx, GL_INVALID_VALUE, "glRenderbufferStorageEXT(height)"); - return; - } - - rb = ctx->CurrentRenderbuffer; - - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glRenderbufferStorageEXT"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - /* Now allocate the storage */ - ASSERT(rb->AllocStorage); - if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) { - /* No error - check/set fields now */ - assert(rb->Width == width); - assert(rb->Height == height); - assert(rb->InternalFormat); - rb->_BaseFormat = baseFormat; - } - else { - /* Probably ran out of memory - clear the fields */ - rb->Width = 0; - rb->Height = 0; - rb->InternalFormat = GL_NONE; - rb->_BaseFormat = GL_NONE; - } - - /* - test_framebuffer_completeness(ctx, fb); - */ - /* XXX if this renderbuffer is attached anywhere, invalidate attachment - * points??? - */ -} - - -void GLAPIENTRY -_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetRenderbufferParameterivEXT(target)"); - return; - } - - if (!ctx->CurrentRenderbuffer) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetRenderbufferParameterivEXT"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - switch (pname) { - case GL_RENDERBUFFER_WIDTH_EXT: - *params = ctx->CurrentRenderbuffer->Width; - return; - case GL_RENDERBUFFER_HEIGHT_EXT: - *params = ctx->CurrentRenderbuffer->Height; - return; - case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT: - *params = ctx->CurrentRenderbuffer->InternalFormat; - return; - case GL_RENDERBUFFER_RED_SIZE_EXT: - if (ctx->CurrentRenderbuffer->_BaseFormat == GL_RGB || - ctx->CurrentRenderbuffer->_BaseFormat == GL_RGBA) { - *params = ctx->CurrentRenderbuffer->ComponentSizes[0]; - } - else { - *params = 0; - } - break; - case GL_RENDERBUFFER_GREEN_SIZE_EXT: - if (ctx->CurrentRenderbuffer->_BaseFormat == GL_RGB || - ctx->CurrentRenderbuffer->_BaseFormat == GL_RGBA) { - *params = ctx->CurrentRenderbuffer->ComponentSizes[1]; - } - else { - *params = 0; - } - break; - case GL_RENDERBUFFER_BLUE_SIZE_EXT: - if (ctx->CurrentRenderbuffer->_BaseFormat == GL_RGB || - ctx->CurrentRenderbuffer->_BaseFormat == GL_RGBA) { - *params = ctx->CurrentRenderbuffer->ComponentSizes[2]; - } - else { - *params = 0; - } - break; - case GL_RENDERBUFFER_ALPHA_SIZE_EXT: - if (ctx->CurrentRenderbuffer->_BaseFormat == GL_RGB || - ctx->CurrentRenderbuffer->_BaseFormat == GL_RGBA) { - *params = ctx->CurrentRenderbuffer->ComponentSizes[3]; - } - else { - *params = 0; - } - break; - case GL_RENDERBUFFER_DEPTH_SIZE_EXT: - if (ctx->CurrentRenderbuffer->_BaseFormat == GL_DEPTH_COMPONENT) { - *params = ctx->CurrentRenderbuffer->ComponentSizes[0]; - } - else { - *params = 0; - } - break; - case GL_RENDERBUFFER_STENCIL_SIZE_EXT: - if (ctx->CurrentRenderbuffer->_BaseFormat == GL_STENCIL_INDEX) { - *params = ctx->CurrentRenderbuffer->ComponentSizes[0]; - } - else { - *params = 0; - } - break; - - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetRenderbufferParameterivEXT(target)"); - return; - } -} - - -GLboolean GLAPIENTRY -_mesa_IsFramebufferEXT(GLuint framebuffer) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - if (framebuffer) { - struct gl_framebuffer *rb = lookup_framebuffer(ctx, framebuffer); - if (rb != NULL && rb != &DummyFramebuffer) - return GL_TRUE; - } - return GL_FALSE; -} - - -void GLAPIENTRY -_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer) -{ - struct gl_framebuffer *newFb, *newReadFb, *oldFb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_FRAMEBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glBindFramebufferEXT(target)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (framebuffer) { - /* Binding a user-created framebuffer object */ - newFb = 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 = 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++; - newReadFb = newFb; - } - else { - /* Binding the window system framebuffer (which was originally set - * with MakeCurrent). - */ - newFb = ctx->WinSysDrawBuffer; - newReadFb = ctx->WinSysReadBuffer; - } - - oldFb = ctx->DrawBuffer; - if (oldFb && oldFb->Name != 0) { - oldFb->RefCount--; - if (oldFb->RefCount == 0) { - oldFb->Delete(oldFb); - } - } - - ASSERT(newFb != &DummyFramebuffer); - - /* Note, we set both the GL_DRAW_BUFFER and GL_READ_BUFFER state: */ - ctx->DrawBuffer = newFb; - ctx->ReadBuffer = newReadFb; -} - - -void GLAPIENTRY -_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers) -{ - GLint i; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - for (i = 0; i < n; i++) { - if (framebuffers[i] > 0) { - struct gl_framebuffer *fb; - fb = 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]); - - if (fb != &DummyFramebuffer) { - /* But the object will not be freed until it's no longer - * bound in any context. - */ - fb->RefCount--; - if (fb->RefCount == 0) { - fb->Delete(fb); - } - } - } - } - } -} - - -void GLAPIENTRY -_mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)"); - return; - } - - if (!framebuffers) - return; - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n); - - for (i = 0; i < n; i++) { - GLuint name = first + i; - 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); - } -} - - - -GLenum GLAPIENTRY -_mesa_CheckFramebufferStatusEXT(GLenum target) -{ - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); - - if (target != GL_FRAMEBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)"); - return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */ - } - - if (ctx->DrawBuffer->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, ctx->DrawBuffer); - return ctx->DrawBuffer->_Status; -} - - - -/** - * Do error checking common to glFramebufferTexture1D/2D/3DEXT. - * \return GL_TRUE if any error, GL_FALSE otherwise - */ -static GLboolean -error_check_framebuffer_texture(GLcontext *ctx, GLuint dims, - GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, GLint level) -{ - ASSERT(dims >= 1 && dims <= 3); - - if (target != GL_FRAMEBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture%dDEXT(target)", dims); - return GL_TRUE; - } - - /* check framebuffer binding */ - if (ctx->DrawBuffer->Name == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture%dDEXT", dims); - return GL_TRUE; - } - - /* only check textarget, level if texture ID 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; - } - - if ((level < 0) || level >= _mesa_max_texture_levels(ctx, textarget)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferTexture%dDEXT(level)", dims); - return GL_TRUE; - } - } - - return GL_FALSE; -} - - -void GLAPIENTRY -_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, GLint level) -{ - struct gl_renderbuffer_attachment *att; - struct gl_texture_object *texObj; - 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, ctx->DrawBuffer, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture1DEXT(attachment)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (texture) { - 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; - } - } - else { - /* remove texture attachment */ - texObj = NULL; - } - ctx->Driver.RenderbufferTexture(ctx, att, texObj, textarget, level, 0); -} - - -void GLAPIENTRY -_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, GLint level) -{ - struct gl_renderbuffer_attachment *att; - struct gl_texture_object *texObj; - 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, ctx->DrawBuffer, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture2DEXT(attachment)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (texture) { - 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; - } - } - else { - /* remove texture attachment */ - texObj = NULL; - } - ctx->Driver.RenderbufferTexture(ctx, att, texObj, textarget, level, 0); -} - - -void GLAPIENTRY -_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, - GLint level, GLint zoffset) -{ - struct gl_renderbuffer_attachment *att; - struct gl_texture_object *texObj; - 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, ctx->DrawBuffer, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture1DEXT(attachment)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (texture) { - const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); - 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 < 0 || zoffset >= maxSize) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferTexture3DEXT(zoffset)"); - return; - } - } - else { - /* remove texture attachment */ - texObj = NULL; - } - ctx->Driver.RenderbufferTexture(ctx, att, texObj, textarget, - level, zoffset); -} - - -void GLAPIENTRY -_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment, - GLenum renderbufferTarget, - GLuint renderbuffer) -{ - struct gl_renderbuffer_attachment *att; - struct gl_renderbuffer *rb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_FRAMEBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(target)"); - return; - } - - if (renderbufferTarget != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(renderbufferTarget)"); - return; - } - - if (ctx->DrawBuffer->Name == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT"); - return; - } - - att = get_attachment(ctx, ctx->DrawBuffer, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(attachment)"); - return; - } - - if (renderbuffer) { - rb = lookup_renderbuffer(ctx, renderbuffer); - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferRenderbufferEXT(renderbuffer)"); - return; - } - } - else { - /* remove renderbuffer attachment */ - rb = NULL; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - assert(ctx->Driver.FramebufferRenderbuffer); - ctx->Driver.FramebufferRenderbuffer(ctx, att, rb); -} - - -void GLAPIENTRY -_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment, - GLenum pname, GLint *params) -{ - const struct gl_renderbuffer_attachment *att; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_FRAMEBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(target)"); - return; - } - - if (ctx->DrawBuffer->Name == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetFramebufferAttachmentParameterivEXT"); - return; - } - - att = get_attachment(ctx, ctx->DrawBuffer, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(attachment)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - switch (pname) { - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT: - *params = att->Type; - return; - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT: - if (att->Type == GL_RENDERBUFFER_EXT) { - *params = att->Renderbuffer->Name; - } - else if (att->Type == GL_TEXTURE) { - *params = att->Texture->Name; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT: - if (att->Type == GL_TEXTURE) { - *params = att->TextureLevel; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT: - if (att->Type == GL_TEXTURE) { - *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT: - if (att->Type == GL_TEXTURE) { - *params = att->Zoffset; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - return; - } -} - - -void GLAPIENTRY -_mesa_GenerateMipmapEXT(GLenum target) -{ - struct gl_texture_unit *texUnit; - struct gl_texture_object *texObj; - 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)"); - return; - } - - 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); -} |