diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/Framebuffer.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libGLESv2/Framebuffer.cpp | 672 |
1 files changed, 0 insertions, 672 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/Framebuffer.cpp b/src/3rdparty/angle/src/libGLESv2/Framebuffer.cpp deleted file mode 100644 index 3d57262e3c..0000000000 --- a/src/3rdparty/angle/src/libGLESv2/Framebuffer.cpp +++ /dev/null @@ -1,672 +0,0 @@ -// -// Copyright (c) 2002-2014 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/formatutils.h" -#include "libGLESv2/Texture.h" -#include "libGLESv2/Context.h" -#include "libGLESv2/Renderbuffer.h" -#include "libGLESv2/FramebufferAttachment.h" -#include "libGLESv2/renderer/Renderer.h" -#include "libGLESv2/renderer/RenderTarget.h" -#include "libGLESv2/renderer/RenderbufferImpl.h" -#include "libGLESv2/renderer/Workarounds.h" -#include "libGLESv2/renderer/d3d/TextureD3D.h" -#include "libGLESv2/renderer/d3d/RenderbufferD3D.h" - -#include "common/utilities.h" - -namespace rx -{ -// TODO: Move these functions, and the D3D-specific header inclusions above, -// to FramebufferD3D. -gl::Error GetAttachmentRenderTarget(gl::FramebufferAttachment *attachment, RenderTarget **outRT) -{ - if (attachment->isTexture()) - { - gl::Texture *texture = attachment->getTexture(); - ASSERT(texture); - TextureD3D *textureD3D = TextureD3D::makeTextureD3D(texture->getImplementation()); - const gl::ImageIndex *index = attachment->getTextureImageIndex(); - ASSERT(index); - return textureD3D->getRenderTarget(*index, outRT); - } - else - { - gl::Renderbuffer *renderbuffer = attachment->getRenderbuffer(); - ASSERT(renderbuffer); - RenderbufferD3D *renderbufferD3D = RenderbufferD3D::makeRenderbufferD3D(renderbuffer->getImplementation()); - *outRT = renderbufferD3D->getRenderTarget(); - return gl::Error(GL_NO_ERROR); - } -} - -// Note: RenderTarget serials should ideally be in the RenderTargets themselves. -unsigned int GetAttachmentSerial(gl::FramebufferAttachment *attachment) -{ - if (attachment->isTexture()) - { - gl::Texture *texture = attachment->getTexture(); - ASSERT(texture); - TextureD3D *textureD3D = TextureD3D::makeTextureD3D(texture->getImplementation()); - const gl::ImageIndex *index = attachment->getTextureImageIndex(); - ASSERT(index); - return textureD3D->getRenderTargetSerial(*index); - } - - gl::Renderbuffer *renderbuffer = attachment->getRenderbuffer(); - ASSERT(renderbuffer); - RenderbufferD3D *renderbufferD3D = RenderbufferD3D::makeRenderbufferD3D(renderbuffer->getImplementation()); - return renderbufferD3D->getRenderTargetSerial(); -} - -} - -namespace gl -{ - -Framebuffer::Framebuffer(GLuint id) - : mId(id), - mReadBufferState(GL_COLOR_ATTACHMENT0_EXT), - mDepthbuffer(NULL), - mStencilbuffer(NULL) -{ - for (unsigned int colorAttachment = 0; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - mColorbuffers[colorAttachment] = NULL; - mDrawBufferStates[colorAttachment] = GL_NONE; - } - mDrawBufferStates[0] = GL_COLOR_ATTACHMENT0_EXT; -} - -Framebuffer::~Framebuffer() -{ - for (unsigned int colorAttachment = 0; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - SafeDelete(mColorbuffers[colorAttachment]); - } - SafeDelete(mDepthbuffer); - SafeDelete(mStencilbuffer); -} - -void Framebuffer::detachTexture(GLuint textureId) -{ - for (unsigned int colorAttachment = 0; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - FramebufferAttachment *attachment = mColorbuffers[colorAttachment]; - - if (attachment && attachment->isTextureWithId(textureId)) - { - SafeDelete(mColorbuffers[colorAttachment]); - } - } - - if (mDepthbuffer && mDepthbuffer->isTextureWithId(textureId)) - { - SafeDelete(mDepthbuffer); - } - - if (mStencilbuffer && mStencilbuffer->isTextureWithId(textureId)) - { - SafeDelete(mStencilbuffer); - } -} - -void Framebuffer::detachRenderbuffer(GLuint renderbufferId) -{ - for (unsigned int colorAttachment = 0; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - FramebufferAttachment *attachment = mColorbuffers[colorAttachment]; - - if (attachment && attachment->isRenderbufferWithId(renderbufferId)) - { - SafeDelete(mColorbuffers[colorAttachment]); - } - } - - if (mDepthbuffer && mDepthbuffer->isRenderbufferWithId(renderbufferId)) - { - SafeDelete(mDepthbuffer); - } - - if (mStencilbuffer && mStencilbuffer->isRenderbufferWithId(renderbufferId)) - { - SafeDelete(mStencilbuffer); - } -} - -FramebufferAttachment *Framebuffer::getColorbuffer(unsigned int colorAttachment) const -{ - ASSERT(colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS); - return mColorbuffers[colorAttachment]; -} - -FramebufferAttachment *Framebuffer::getDepthbuffer() const -{ - return mDepthbuffer; -} - -FramebufferAttachment *Framebuffer::getStencilbuffer() const -{ - return mStencilbuffer; -} - -FramebufferAttachment *Framebuffer::getDepthStencilBuffer() const -{ - return (hasValidDepthStencil() ? mDepthbuffer : NULL); -} - -FramebufferAttachment *Framebuffer::getDepthOrStencilbuffer() const -{ - FramebufferAttachment *depthstencilbuffer = mDepthbuffer; - - if (!depthstencilbuffer) - { - depthstencilbuffer = mStencilbuffer; - } - - return depthstencilbuffer; -} - -FramebufferAttachment *Framebuffer::getReadColorbuffer() const -{ - // Will require more logic if glReadBuffers is supported - return mColorbuffers[0]; -} - -GLenum Framebuffer::getReadColorbufferType() const -{ - // Will require more logic if glReadBuffers is supported - return (mColorbuffers[0] ? mColorbuffers[0]->type() : GL_NONE); -} - -FramebufferAttachment *Framebuffer::getFirstColorbuffer() const -{ - for (unsigned int colorAttachment = 0; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - if (mColorbuffers[colorAttachment]) - { - return mColorbuffers[colorAttachment]; - } - } - - return NULL; -} - -FramebufferAttachment *Framebuffer::getAttachment(GLenum attachment) const -{ - if (attachment >= GL_COLOR_ATTACHMENT0 && attachment <= GL_COLOR_ATTACHMENT15) - { - return getColorbuffer(attachment - GL_COLOR_ATTACHMENT0); - } - else - { - switch (attachment) - { - case GL_DEPTH_ATTACHMENT: - return getDepthbuffer(); - case GL_STENCIL_ATTACHMENT: - return getStencilbuffer(); - case GL_DEPTH_STENCIL_ATTACHMENT: - return getDepthStencilBuffer(); - default: - UNREACHABLE(); - return NULL; - } - } -} - -GLenum Framebuffer::getDrawBufferState(unsigned int colorAttachment) const -{ - return mDrawBufferStates[colorAttachment]; -} - -void Framebuffer::setDrawBufferState(unsigned int colorAttachment, GLenum drawBuffer) -{ - mDrawBufferStates[colorAttachment] = drawBuffer; -} - -bool Framebuffer::isEnabledColorAttachment(unsigned int colorAttachment) const -{ - return (mColorbuffers[colorAttachment] && mDrawBufferStates[colorAttachment] != GL_NONE); -} - -bool Framebuffer::hasEnabledColorAttachment() const -{ - for (unsigned int colorAttachment = 0; colorAttachment < gl::IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - if (isEnabledColorAttachment(colorAttachment)) - { - return true; - } - } - - return false; -} - -bool Framebuffer::hasStencil() const -{ - return (mStencilbuffer && mStencilbuffer->getStencilSize() > 0); -} - -bool Framebuffer::usingExtendedDrawBuffers() const -{ - for (unsigned int colorAttachment = 1; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - if (isEnabledColorAttachment(colorAttachment)) - { - return true; - } - } - - return false; -} - -GLenum Framebuffer::completeness(const gl::Data &data) const -{ - int width = 0; - int height = 0; - unsigned int colorbufferSize = 0; - int samples = -1; - bool missingAttachment = true; - - for (unsigned int colorAttachment = 0; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - const FramebufferAttachment *colorbuffer = mColorbuffers[colorAttachment]; - - if (colorbuffer) - { - if (colorbuffer->getWidth() == 0 || colorbuffer->getHeight() == 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - - GLenum internalformat = colorbuffer->getInternalFormat(); - const TextureCaps &formatCaps = data.textureCaps->get(internalformat); - const InternalFormat &formatInfo = GetInternalFormatInfo(internalformat); - if (colorbuffer->isTexture()) - { - if (!formatCaps.renderable) - { - return GL_FRAMEBUFFER_UNSUPPORTED; - } - - if (formatInfo.depthBits > 0 || formatInfo.stencilBits > 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - } - else - { - if (!formatCaps.renderable || formatInfo.depthBits > 0 || formatInfo.stencilBits > 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - } - - if (!missingAttachment) - { - // all color attachments must have the same width and height - if (colorbuffer->getWidth() != width || colorbuffer->getHeight() != height) - { - return GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS; - } - - // APPLE_framebuffer_multisample, which EXT_draw_buffers refers to, requires that - // all color attachments have the same number of samples for the FBO to be complete. - if (colorbuffer->getSamples() != samples) - { - return GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT; - } - - // in GLES 2.0, all color attachments attachments must have the same number of bitplanes - // in GLES 3.0, there is no such restriction - if (data.clientVersion < 3) - { - if (formatInfo.pixelBytes != colorbufferSize) - { - return GL_FRAMEBUFFER_UNSUPPORTED; - } - } - - // D3D11 does not allow for overlapping RenderTargetViews, so ensure uniqueness - for (unsigned int previousColorAttachment = 0; previousColorAttachment < colorAttachment; previousColorAttachment++) - { - const FramebufferAttachment *previousAttachment = mColorbuffers[previousColorAttachment]; - - if (previousAttachment && - (colorbuffer->id() == previousAttachment->id() && - colorbuffer->type() == previousAttachment->type())) - { - return GL_FRAMEBUFFER_UNSUPPORTED; - } - } - } - else - { - width = colorbuffer->getWidth(); - height = colorbuffer->getHeight(); - samples = colorbuffer->getSamples(); - colorbufferSize = formatInfo.pixelBytes; - missingAttachment = false; - } - } - } - - if (mDepthbuffer) - { - if (mDepthbuffer->getWidth() == 0 || mDepthbuffer->getHeight() == 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - - GLenum internalformat = mDepthbuffer->getInternalFormat(); - const TextureCaps &formatCaps = data.textureCaps->get(internalformat); - const InternalFormat &formatInfo = GetInternalFormatInfo(internalformat); - if (mDepthbuffer->isTexture()) - { - // depth texture attachments require OES/ANGLE_depth_texture - if (!data.extensions->depthTextures) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - - if (!formatCaps.renderable) - { - return GL_FRAMEBUFFER_UNSUPPORTED; - } - - if (formatInfo.depthBits == 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - } - else - { - if (!formatCaps.renderable || formatInfo.depthBits == 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - } - - if (missingAttachment) - { - width = mDepthbuffer->getWidth(); - height = mDepthbuffer->getHeight(); - samples = mDepthbuffer->getSamples(); - missingAttachment = false; - } - else if (width != mDepthbuffer->getWidth() || height != mDepthbuffer->getHeight()) - { - return GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS; - } - else if (samples != mDepthbuffer->getSamples()) - { - return GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_ANGLE; - } - } - - if (mStencilbuffer) - { - if (mStencilbuffer->getWidth() == 0 || mStencilbuffer->getHeight() == 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - - GLenum internalformat = mStencilbuffer->getInternalFormat(); - const TextureCaps &formatCaps = data.textureCaps->get(internalformat); - const InternalFormat &formatInfo = GetInternalFormatInfo(internalformat); - if (mStencilbuffer->isTexture()) - { - // texture stencil attachments come along as part - // of OES_packed_depth_stencil + OES/ANGLE_depth_texture - if (!data.extensions->depthTextures) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - - if (!formatCaps.renderable) - { - return GL_FRAMEBUFFER_UNSUPPORTED; - } - - if (formatInfo.stencilBits == 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - } - else - { - if (!formatCaps.renderable || formatInfo.stencilBits == 0) - { - return GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT; - } - } - - if (missingAttachment) - { - width = mStencilbuffer->getWidth(); - height = mStencilbuffer->getHeight(); - samples = mStencilbuffer->getSamples(); - missingAttachment = false; - } - else if (width != mStencilbuffer->getWidth() || height != mStencilbuffer->getHeight()) - { - return GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS; - } - else if (samples != mStencilbuffer->getSamples()) - { - return GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_ANGLE; - } - } - - // if we have both a depth and stencil buffer, they must refer to the same object - // since we only support packed_depth_stencil and not separate depth and stencil - if (mDepthbuffer && mStencilbuffer && !hasValidDepthStencil()) - { - return GL_FRAMEBUFFER_UNSUPPORTED; - } - - // we need to have at least one attachment to be complete - if (missingAttachment) - { - return GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT; - } - - return GL_FRAMEBUFFER_COMPLETE; -} - -Error Framebuffer::invalidate(const Caps &caps, GLsizei numAttachments, const GLenum *attachments) -{ - GLuint maxDimension = caps.maxRenderbufferSize; - return invalidateSub(numAttachments, attachments, 0, 0, maxDimension, maxDimension); -} - -Error Framebuffer::invalidateSub(GLsizei numAttachments, const GLenum *attachments, GLint x, GLint y, GLsizei width, GLsizei height) -{ - for (GLsizei attachIndex = 0; attachIndex < numAttachments; ++attachIndex) - { - GLenum attachmentTarget = attachments[attachIndex]; - - FramebufferAttachment *attachment = (attachmentTarget == GL_DEPTH_STENCIL_ATTACHMENT) ? getDepthOrStencilbuffer() - : getAttachment(attachmentTarget); - - if (attachment) - { - rx::RenderTarget *renderTarget = NULL; - Error error = rx::GetAttachmentRenderTarget(attachment, &renderTarget); - if (error.isError()) - { - return error; - } - - renderTarget->invalidate(x, y, width, height); - } - } - - return Error(GL_NO_ERROR); -} - -DefaultFramebuffer::DefaultFramebuffer(rx::RenderbufferImpl *colorbuffer, rx::RenderbufferImpl *depthStencil) - : Framebuffer(0) -{ - Renderbuffer *colorRenderbuffer = new Renderbuffer(colorbuffer, 0); - mColorbuffers[0] = new RenderbufferAttachment(GL_BACK, colorRenderbuffer); - - Renderbuffer *depthStencilBuffer = new Renderbuffer(depthStencil, 0); - - // Make a new attachment objects to ensure we do not double-delete - // See angle issue 686 - mDepthbuffer = (depthStencilBuffer->getDepthSize() != 0 ? new RenderbufferAttachment(GL_DEPTH_ATTACHMENT, depthStencilBuffer) : NULL); - mStencilbuffer = (depthStencilBuffer->getStencilSize() != 0 ? new RenderbufferAttachment(GL_STENCIL_ATTACHMENT, depthStencilBuffer) : NULL); - - mDrawBufferStates[0] = GL_BACK; - mReadBufferState = GL_BACK; -} - -int Framebuffer::getSamples(const gl::Data &data) const -{ - if (completeness(data) == GL_FRAMEBUFFER_COMPLETE) - { - // for a complete framebuffer, all attachments must have the same sample count - // in this case return the first nonzero sample size - for (unsigned int colorAttachment = 0; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++) - { - if (mColorbuffers[colorAttachment]) - { - return mColorbuffers[colorAttachment]->getSamples(); - } - } - } - - return 0; -} - -bool Framebuffer::hasValidDepthStencil() const -{ - // A valid depth-stencil attachment has the same resource bound to both the - // depth and stencil attachment points. - return (mDepthbuffer && mStencilbuffer && - mDepthbuffer->type() == mStencilbuffer->type() && - mDepthbuffer->id() == mStencilbuffer->id()); -} - -ColorbufferInfo Framebuffer::getColorbuffersForRender(const rx::Workarounds &workarounds) const -{ - ColorbufferInfo colorbuffersForRender; - - for (size_t colorAttachment = 0; colorAttachment < IMPLEMENTATION_MAX_DRAW_BUFFERS; ++colorAttachment) - { - GLenum drawBufferState = mDrawBufferStates[colorAttachment]; - FramebufferAttachment *colorbuffer = mColorbuffers[colorAttachment]; - - if (colorbuffer != NULL && drawBufferState != GL_NONE) - { - ASSERT(drawBufferState == GL_BACK || drawBufferState == (GL_COLOR_ATTACHMENT0_EXT + colorAttachment)); - colorbuffersForRender.push_back(colorbuffer); - } - else if (!workarounds.mrtPerfWorkaround) - { - colorbuffersForRender.push_back(NULL); - } - } - - return colorbuffersForRender; -} - -void Framebuffer::setTextureAttachment(GLenum attachment, Texture *texture, const ImageIndex &imageIndex) -{ - setAttachment(attachment, new TextureAttachment(attachment, texture, imageIndex)); -} - -void Framebuffer::setRenderbufferAttachment(GLenum attachment, Renderbuffer *renderbuffer) -{ - setAttachment(attachment, new RenderbufferAttachment(attachment, renderbuffer)); -} - -void Framebuffer::setNULLAttachment(GLenum attachment) -{ - setAttachment(attachment, NULL); -} - -void Framebuffer::setAttachment(GLenum attachment, FramebufferAttachment *attachmentObj) -{ - if (attachment >= GL_COLOR_ATTACHMENT0 && attachment < (GL_COLOR_ATTACHMENT0 + IMPLEMENTATION_MAX_DRAW_BUFFERS)) - { - size_t colorAttachment = attachment - GL_COLOR_ATTACHMENT0; - SafeDelete(mColorbuffers[colorAttachment]); - mColorbuffers[colorAttachment] = attachmentObj; - } - else if (attachment == GL_DEPTH_ATTACHMENT) - { - SafeDelete(mDepthbuffer); - mDepthbuffer = attachmentObj; - } - else if (attachment == GL_STENCIL_ATTACHMENT) - { - SafeDelete(mStencilbuffer); - mStencilbuffer = attachmentObj; - } - else if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) - { - SafeDelete(mDepthbuffer); - SafeDelete(mStencilbuffer); - - // ensure this is a legitimate depth+stencil format - if (attachmentObj && attachmentObj->getDepthSize() > 0 && attachmentObj->getStencilSize() > 0) - { - mDepthbuffer = attachmentObj; - - // Make a new attachment object to ensure we do not double-delete - // See angle issue 686 - if (attachmentObj->isTexture()) - { - mStencilbuffer = new TextureAttachment(GL_DEPTH_STENCIL_ATTACHMENT, attachmentObj->getTexture(), - *attachmentObj->getTextureImageIndex()); - } - else - { - mStencilbuffer = new RenderbufferAttachment(GL_DEPTH_STENCIL_ATTACHMENT, attachmentObj->getRenderbuffer()); - } - } - } - else - { - UNREACHABLE(); - } -} - -GLenum DefaultFramebuffer::completeness(const gl::Data &) const -{ - // The default framebuffer *must* always be complete, though it may not be - // subject to the same rules as application FBOs. ie, it could have 0x0 size. - return GL_FRAMEBUFFER_COMPLETE; -} - -FramebufferAttachment *DefaultFramebuffer::getAttachment(GLenum attachment) const -{ - switch (attachment) - { - case GL_COLOR: - case GL_BACK: - return getColorbuffer(0); - case GL_DEPTH: - return getDepthbuffer(); - case GL_STENCIL: - return getStencilbuffer(); - case GL_DEPTH_STENCIL: - return getDepthStencilBuffer(); - default: - UNREACHABLE(); - return NULL; - } -} - -} |