| // |
| // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // Framebuffer.cpp: Implements the gl::Framebuffer class. Implements GL framebuffer |
| // objects and related functionality. [OpenGL ES 2.0.24] section 4.4 page 105. |
| |
| #include "libGLESv2/Framebuffer.h" |
| |
| #include "libGLESv2/main.h" |
| #include "libGLESv2/Renderbuffer.h" |
| #include "libGLESv2/Texture.h" |
| #include "libGLESv2/utilities.h" |
| |
| namespace gl |
| { |
| Framebuffer::Framebuffer() |
| { |
| mColorbufferType = GL_NONE; |
| mColorbufferHandle = 0; |
| |
| mDepthbufferType = GL_NONE; |
| mDepthbufferHandle = 0; |
| |
| mStencilbufferType = GL_NONE; |
| mStencilbufferHandle = 0; |
| } |
| |
| Framebuffer::~Framebuffer() |
| { |
| } |
| |
| void Framebuffer::setColorbuffer(GLenum type, GLuint colorbuffer) |
| { |
| mColorbufferType = type; |
| mColorbufferHandle = colorbuffer; |
| } |
| |
| void Framebuffer::setDepthbuffer(GLenum type, GLuint depthbuffer) |
| { |
| mDepthbufferType = type; |
| mDepthbufferHandle = depthbuffer; |
| } |
| |
| void Framebuffer::setStencilbuffer(GLenum type, GLuint stencilbuffer) |
| { |
| mStencilbufferType = type; |
| mStencilbufferHandle = stencilbuffer; |
| } |
| |
| void Framebuffer::detachTexture(GLuint texture) |
| { |
| if (mColorbufferHandle == texture && IsTextureTarget(mColorbufferType)) |
| { |
| mColorbufferType = GL_NONE; |
| mColorbufferHandle = 0; |
| } |
| |
| if (mDepthbufferHandle == texture && IsTextureTarget(mDepthbufferType)) |
| { |
| mDepthbufferType = GL_NONE; |
| mDepthbufferHandle = 0; |
| } |
| |
| if (mStencilbufferHandle == texture && IsTextureTarget(mStencilbufferType)) |
| { |
| mStencilbufferType = GL_NONE; |
| mStencilbufferHandle = 0; |
| } |
| } |
| |
| void Framebuffer::detachRenderbuffer(GLuint renderbuffer) |
| { |
| if (mColorbufferHandle == renderbuffer && mColorbufferType == GL_RENDERBUFFER) |
| { |
| mColorbufferType = GL_NONE; |
| mColorbufferHandle = 0; |
| } |
| |
| if (mDepthbufferHandle == renderbuffer && mDepthbufferType == GL_RENDERBUFFER) |
| { |
| mDepthbufferType = GL_NONE; |
| mDepthbufferHandle = 0; |
| } |
| |
| if (mStencilbufferHandle == renderbuffer && mStencilbufferType == GL_RENDERBUFFER) |
| { |
| mStencilbufferType = GL_NONE; |
| mStencilbufferHandle = 0; |
| } |
| } |
| |
| unsigned int Framebuffer::getRenderTargetSerial() |
| { |
| Renderbuffer *colorbuffer = getColorbuffer(); |
| |
| if (colorbuffer) |
| { |
| return colorbuffer->getSerial(); |
| } |
| |
| return 0; |
| } |
| |
| IDirect3DSurface9 *Framebuffer::getRenderTarget() |
| { |
| Renderbuffer *colorbuffer = getColorbuffer(); |
| |
| if (colorbuffer) |
| { |
| return colorbuffer->getRenderTarget(); |
| } |
| |
| return NULL; |
| } |
| |
| unsigned int Framebuffer::getDepthbufferSerial() |
| { |
| gl::Context *context = gl::getContext(); |
| Depthbuffer *depthbuffer = context->getDepthbuffer(mDepthbufferHandle); |
| |
| if (depthbuffer) |
| { |
| return depthbuffer->getSerial(); |
| } |
| |
| return 0; |
| } |
| |
| IDirect3DSurface9 *Framebuffer::getDepthStencil() |
| { |
| gl::Context *context = gl::getContext(); |
| Depthbuffer *depthbuffer = context->getDepthbuffer(mDepthbufferHandle); |
| |
| if (depthbuffer) |
| { |
| return depthbuffer->getDepthStencil(); |
| } |
| |
| return NULL; |
| } |
| |
| Colorbuffer *Framebuffer::getColorbuffer() |
| { |
| gl::Context *context = gl::getContext(); |
| Colorbuffer *colorbuffer = NULL; |
| |
| if (mColorbufferType == GL_NONE) |
| { |
| UNREACHABLE(); |
| colorbuffer = NULL; |
| } |
| else if (mColorbufferType == GL_RENDERBUFFER) |
| { |
| colorbuffer = context->getColorbuffer(mColorbufferHandle); |
| } |
| else |
| { |
| colorbuffer = context->getTexture(mColorbufferHandle)->getColorbuffer(mColorbufferType); |
| } |
| |
| if (colorbuffer && colorbuffer->isColorbuffer()) |
| { |
| return colorbuffer; |
| } |
| |
| return NULL; |
| } |
| |
| Depthbuffer *Framebuffer::getDepthbuffer() |
| { |
| gl::Context *context = gl::getContext(); |
| Depthbuffer *depthbuffer = context->getDepthbuffer(mDepthbufferHandle); |
| |
| if (depthbuffer && depthbuffer->isDepthbuffer()) |
| { |
| return depthbuffer; |
| } |
| |
| return NULL; |
| } |
| |
| Stencilbuffer *Framebuffer::getStencilbuffer() |
| { |
| gl::Context *context = gl::getContext(); |
| Stencilbuffer *stencilbuffer = context->getStencilbuffer(mStencilbufferHandle); |
| |
| if (stencilbuffer && stencilbuffer->isStencilbuffer()) |
| { |
| return stencilbuffer; |
| } |
| |
| return NULL; |
| } |
| |
| GLenum Framebuffer::getColorbufferType() |
| { |
| return mColorbufferType; |
| } |
| |
| GLenum Framebuffer::getDepthbufferType() |
| { |
| return mDepthbufferType; |
| } |
| |
| GLenum Framebuffer::getStencilbufferType() |
| { |
| return mStencilbufferType; |
| } |
| |
| GLuint Framebuffer::getColorbufferHandle() |
| { |
| return mColorbufferHandle; |
| } |
| |
| GLuint Framebuffer::getDepthbufferHandle() |
| { |
| return mDepthbufferHandle; |
| } |
| |
| GLuint Framebuffer::getStencilbufferHandle() |
| { |
| return mStencilbufferHandle; |
| } |
| |
| GLenum Framebuffer::completeness() |
| { |
| gl::Context *context = gl::getContext(); |
| |
| int width = 0; |
| int height = 0; |
| |
| if (mColorbufferType != GL_NONE) |
| { |
| Colorbuffer *colorbuffer = getColorbuffer(); |
| |
| if (!colorbuffer) |
| { |
| return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; |
| } |
| |
| if (colorbuffer->getWidth() == 0 || colorbuffer->getHeight() == 0) |
| { |
| return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; |
| } |
| |
| width = colorbuffer->getWidth(); |
| height = colorbuffer->getHeight(); |
| } |
| |
| if (mDepthbufferType != GL_NONE) |
| { |
| Depthbuffer *depthbuffer = context->getDepthbuffer(mDepthbufferHandle); |
| |
| if (!depthbuffer) |
| { |
| return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; |
| } |
| |
| if (depthbuffer->getWidth() == 0 || depthbuffer->getHeight() == 0) |
| { |
| return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; |
| } |
| |
| if (width == 0) |
| { |
| width = depthbuffer->getWidth(); |
| height = depthbuffer->getHeight(); |
| } |
| else if (width != depthbuffer->getWidth() || height != depthbuffer->getHeight()) |
| { |
| return GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS; |
| } |
| } |
| |
| if (mStencilbufferType != GL_NONE) |
| { |
| Stencilbuffer *stencilbuffer = context->getStencilbuffer(mStencilbufferHandle); |
| |
| if (!stencilbuffer) |
| { |
| return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; |
| } |
| |
| if (stencilbuffer->getWidth() == 0 || stencilbuffer->getHeight() == 0) |
| { |
| return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; |
| } |
| |
| if (width == 0) |
| { |
| width = stencilbuffer->getWidth(); |
| height = stencilbuffer->getHeight(); |
| } |
| else if (width != stencilbuffer->getWidth() || height != stencilbuffer->getHeight()) |
| { |
| return GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS; |
| } |
| } |
| |
| return GL_FRAMEBUFFER_COMPLETE; |
| } |
| } |