diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/Context.cpp')
-rw-r--r-- | src/3rdparty/angle/src/libGLESv2/Context.cpp | 4501 |
1 files changed, 4501 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/Context.cpp b/src/3rdparty/angle/src/libGLESv2/Context.cpp new file mode 100644 index 0000000000..414bfa968d --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/Context.cpp @@ -0,0 +1,4501 @@ +// +// Copyright (c) 2002-2012 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. +// + +// Context.cpp: Implements the gl::Context class, managing all GL state and performing +// rendering operations. It is the GLES2 specific implementation of EGLContext. + +#include "libGLESv2/Context.h" + +#include <algorithm> + +#include "libEGL/Display.h" + +#include "libGLESv2/main.h" +#include "libGLESv2/mathutil.h" +#include "libGLESv2/utilities.h" +#include "libGLESv2/Blit.h" +#include "libGLESv2/ResourceManager.h" +#include "libGLESv2/Buffer.h" +#include "libGLESv2/Fence.h" +#include "libGLESv2/Framebuffer.h" +#include "libGLESv2/Program.h" +#include "libGLESv2/ProgramBinary.h" +#include "libGLESv2/Query.h" +#include "libGLESv2/Renderbuffer.h" +#include "libGLESv2/Shader.h" +#include "libGLESv2/Texture.h" +#include "libGLESv2/VertexDataManager.h" +#include "libGLESv2/IndexDataManager.h" + +#undef near +#undef far + +namespace gl +{ +Context::Context(const egl::Config *config, const gl::Context *shareContext, bool notifyResets, bool robustAccess) : mConfig(config) +{ + ASSERT(robustAccess == false); // Unimplemented + + mDisplay = NULL; + mDevice = NULL; + + mFenceHandleAllocator.setBaseHandle(0); + + setClearColor(0.0f, 0.0f, 0.0f, 0.0f); + + mState.depthClearValue = 1.0f; + mState.stencilClearValue = 0; + + mState.cullFace = false; + mState.cullMode = GL_BACK; + mState.frontFace = GL_CCW; + mState.depthTest = false; + mState.depthFunc = GL_LESS; + mState.blend = false; + mState.sourceBlendRGB = GL_ONE; + mState.sourceBlendAlpha = GL_ONE; + mState.destBlendRGB = GL_ZERO; + mState.destBlendAlpha = GL_ZERO; + mState.blendEquationRGB = GL_FUNC_ADD; + mState.blendEquationAlpha = GL_FUNC_ADD; + mState.blendColor.red = 0; + mState.blendColor.green = 0; + mState.blendColor.blue = 0; + mState.blendColor.alpha = 0; + mState.stencilTest = false; + mState.stencilFunc = GL_ALWAYS; + mState.stencilRef = 0; + mState.stencilMask = -1; + mState.stencilWritemask = -1; + mState.stencilBackFunc = GL_ALWAYS; + mState.stencilBackRef = 0; + mState.stencilBackMask = - 1; + mState.stencilBackWritemask = -1; + mState.stencilFail = GL_KEEP; + mState.stencilPassDepthFail = GL_KEEP; + mState.stencilPassDepthPass = GL_KEEP; + mState.stencilBackFail = GL_KEEP; + mState.stencilBackPassDepthFail = GL_KEEP; + mState.stencilBackPassDepthPass = GL_KEEP; + mState.polygonOffsetFill = false; + mState.polygonOffsetFactor = 0.0f; + mState.polygonOffsetUnits = 0.0f; + mState.sampleAlphaToCoverage = false; + mState.sampleCoverage = false; + mState.sampleCoverageValue = 1.0f; + mState.sampleCoverageInvert = false; + mState.scissorTest = false; + mState.dither = true; + mState.generateMipmapHint = GL_DONT_CARE; + mState.fragmentShaderDerivativeHint = GL_DONT_CARE; + + mState.lineWidth = 1.0f; + + mState.viewportX = 0; + mState.viewportY = 0; + mState.viewportWidth = config->mDisplayMode.Width; + mState.viewportHeight = config->mDisplayMode.Height; + mState.zNear = 0.0f; + mState.zFar = 1.0f; + + mState.scissorX = 0; + mState.scissorY = 0; + mState.scissorWidth = config->mDisplayMode.Width; + mState.scissorHeight = config->mDisplayMode.Height; + + mState.colorMaskRed = true; + mState.colorMaskGreen = true; + mState.colorMaskBlue = true; + mState.colorMaskAlpha = true; + mState.depthMask = true; + + if (shareContext != NULL) + { + mResourceManager = shareContext->mResourceManager; + mResourceManager->addRef(); + } + else + { + mResourceManager = new ResourceManager(); + } + + // [OpenGL ES 2.0.24] section 3.7 page 83: + // In the initial state, TEXTURE_2D and TEXTURE_CUBE_MAP have twodimensional + // and cube map texture state vectors respectively associated with them. + // In order that access to these initial textures not be lost, they are treated as texture + // objects all of whose names are 0. + + mTexture2DZero.set(new Texture2D(0)); + mTextureCubeMapZero.set(new TextureCubeMap(0)); + + mState.activeSampler = 0; + bindArrayBuffer(0); + bindElementArrayBuffer(0); + bindTextureCubeMap(0); + bindTexture2D(0); + bindReadFramebuffer(0); + bindDrawFramebuffer(0); + bindRenderbuffer(0); + + mState.currentProgram = 0; + mCurrentProgramBinary.set(NULL); + + mState.packAlignment = 4; + mState.unpackAlignment = 4; + mState.packReverseRowOrder = false; + + mVertexDataManager = NULL; + mIndexDataManager = NULL; + mBlit = NULL; + mLineLoopIB = NULL; + + mInvalidEnum = false; + mInvalidValue = false; + mInvalidOperation = false; + mOutOfMemory = false; + mInvalidFramebufferOperation = false; + + mHasBeenCurrent = false; + mContextLost = false; + mResetStatus = GL_NO_ERROR; + mResetStrategy = (notifyResets ? GL_LOSE_CONTEXT_ON_RESET_EXT : GL_NO_RESET_NOTIFICATION_EXT); + mRobustAccess = robustAccess; + + mSupportsDXT1Textures = false; + mSupportsDXT3Textures = false; + mSupportsDXT5Textures = false; + mSupportsEventQueries = false; + mSupportsOcclusionQueries = false; + mNumCompressedTextureFormats = 0; + mMaxSupportedSamples = 0; + mMaskedClearSavedState = NULL; + markAllStateDirty(); +} + +Context::~Context() +{ + if (mState.currentProgram != 0) + { + Program *programObject = mResourceManager->getProgram(mState.currentProgram); + if (programObject) + { + programObject->release(); + } + mState.currentProgram = 0; + } + mCurrentProgramBinary.set(NULL); + + while (!mFramebufferMap.empty()) + { + deleteFramebuffer(mFramebufferMap.begin()->first); + } + + while (!mFenceMap.empty()) + { + deleteFence(mFenceMap.begin()->first); + } + + while (!mQueryMap.empty()) + { + deleteQuery(mQueryMap.begin()->first); + } + + while (!mMultiSampleSupport.empty()) + { + delete [] mMultiSampleSupport.begin()->second; + mMultiSampleSupport.erase(mMultiSampleSupport.begin()); + } + + for (int type = 0; type < TEXTURE_TYPE_COUNT; type++) + { + for (int sampler = 0; sampler < MAX_COMBINED_TEXTURE_IMAGE_UNITS_VTF; sampler++) + { + mState.samplerTexture[type][sampler].set(NULL); + } + } + + for (int type = 0; type < TEXTURE_TYPE_COUNT; type++) + { + mIncompleteTextures[type].set(NULL); + } + + for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++) + { + mState.vertexAttribute[i].mBoundBuffer.set(NULL); + } + + for (int i = 0; i < QUERY_TYPE_COUNT; i++) + { + mState.activeQuery[i].set(NULL); + } + + mState.arrayBuffer.set(NULL); + mState.elementArrayBuffer.set(NULL); + mState.renderbuffer.set(NULL); + + mTexture2DZero.set(NULL); + mTextureCubeMapZero.set(NULL); + + delete mVertexDataManager; + delete mIndexDataManager; + delete mBlit; + delete mLineLoopIB; + + if (mMaskedClearSavedState) + { + mMaskedClearSavedState->Release(); + } + + mResourceManager->release(); +} + +void Context::makeCurrent(egl::Display *display, egl::Surface *surface) +{ + mDisplay = display; + mDevice = mDisplay->getDevice(); + + if (!mHasBeenCurrent) + { + mDeviceCaps = mDisplay->getDeviceCaps(); + + mVertexDataManager = new VertexDataManager(this, mDevice); + mIndexDataManager = new IndexDataManager(this, mDevice); + mBlit = new Blit(this); + + mSupportsShaderModel3 = mDeviceCaps.PixelShaderVersion >= D3DPS_VERSION(3, 0); + mMaximumPointSize = mDeviceCaps.MaxPointSize; + mSupportsVertexTexture = mDisplay->getVertexTextureSupport(); + mSupportsNonPower2Texture = mDisplay->getNonPower2TextureSupport(); + mSupportsInstancing = mDisplay->getInstancingSupport(); + + mMaxTextureDimension = std::min(std::min((int)mDeviceCaps.MaxTextureWidth, (int)mDeviceCaps.MaxTextureHeight), + (int)gl::IMPLEMENTATION_MAX_TEXTURE_SIZE); + mMaxCubeTextureDimension = std::min(mMaxTextureDimension, (int)gl::IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE); + mMaxRenderbufferDimension = mMaxTextureDimension; + mMaxTextureLevel = log2(mMaxTextureDimension) + 1; + mMaxTextureAnisotropy = mDisplay->getTextureFilterAnisotropySupport(); + TRACE("MaxTextureDimension=%d, MaxCubeTextureDimension=%d, MaxRenderbufferDimension=%d, MaxTextureLevel=%d, MaxTextureAnisotropy=%f", + mMaxTextureDimension, mMaxCubeTextureDimension, mMaxRenderbufferDimension, mMaxTextureLevel, mMaxTextureAnisotropy); + + const D3DFORMAT renderBufferFormats[] = + { + D3DFMT_A8R8G8B8, + D3DFMT_X8R8G8B8, + D3DFMT_R5G6B5, + D3DFMT_D24S8 + }; + + int max = 0; + for (int i = 0; i < sizeof(renderBufferFormats) / sizeof(D3DFORMAT); ++i) + { + bool *multisampleArray = new bool[D3DMULTISAMPLE_16_SAMPLES + 1]; + mDisplay->getMultiSampleSupport(renderBufferFormats[i], multisampleArray); + mMultiSampleSupport[renderBufferFormats[i]] = multisampleArray; + + for (int j = D3DMULTISAMPLE_16_SAMPLES; j >= 0; --j) + { + if (multisampleArray[j] && j != D3DMULTISAMPLE_NONMASKABLE && j > max) + { + max = j; + } + } + } + + mMaxSupportedSamples = max; + + mSupportsEventQueries = mDisplay->getEventQuerySupport(); + mSupportsOcclusionQueries = mDisplay->getOcclusionQuerySupport(); + mSupportsDXT1Textures = mDisplay->getDXT1TextureSupport(); + mSupportsDXT3Textures = mDisplay->getDXT3TextureSupport(); + mSupportsDXT5Textures = mDisplay->getDXT5TextureSupport(); + mSupportsFloat32Textures = mDisplay->getFloat32TextureSupport(&mSupportsFloat32LinearFilter, &mSupportsFloat32RenderableTextures); + mSupportsFloat16Textures = mDisplay->getFloat16TextureSupport(&mSupportsFloat16LinearFilter, &mSupportsFloat16RenderableTextures); + mSupportsLuminanceTextures = mDisplay->getLuminanceTextureSupport(); + mSupportsLuminanceAlphaTextures = mDisplay->getLuminanceAlphaTextureSupport(); + mSupportsDepthTextures = mDisplay->getDepthTextureSupport(); + mSupportsTextureFilterAnisotropy = mMaxTextureAnisotropy >= 2.0f; + + mSupports32bitIndices = mDeviceCaps.MaxVertexIndex >= (1 << 16); + + mNumCompressedTextureFormats = 0; + if (supportsDXT1Textures()) + { + mNumCompressedTextureFormats += 2; + } + if (supportsDXT3Textures()) + { + mNumCompressedTextureFormats += 1; + } + if (supportsDXT5Textures()) + { + mNumCompressedTextureFormats += 1; + } + + initExtensionString(); + initRendererString(); + + mState.viewportX = 0; + mState.viewportY = 0; + mState.viewportWidth = surface->getWidth(); + mState.viewportHeight = surface->getHeight(); + + mState.scissorX = 0; + mState.scissorY = 0; + mState.scissorWidth = surface->getWidth(); + mState.scissorHeight = surface->getHeight(); + + mHasBeenCurrent = true; + } + + // Wrap the existing Direct3D 9 resources into GL objects and assign them to the '0' names + IDirect3DSurface9 *defaultRenderTarget = surface->getRenderTarget(); + IDirect3DSurface9 *depthStencil = surface->getDepthStencil(); + + Colorbuffer *colorbufferZero = new Colorbuffer(defaultRenderTarget); + DepthStencilbuffer *depthStencilbufferZero = new DepthStencilbuffer(depthStencil); + Framebuffer *framebufferZero = new DefaultFramebuffer(colorbufferZero, depthStencilbufferZero); + + setFramebufferZero(framebufferZero); + + if (defaultRenderTarget) + { + defaultRenderTarget->Release(); + } + + if (depthStencil) + { + depthStencil->Release(); + } + + // Reset pixel shader to null to work around a bug that only happens with Intel GPUs. + // http://crbug.com/110343 + mDevice->SetPixelShader(NULL); + + markAllStateDirty(); +} + +// This function will set all of the state-related dirty flags, so that all state is set during next pre-draw. +void Context::markAllStateDirty() +{ + for (int t = 0; t < MAX_TEXTURE_IMAGE_UNITS; t++) + { + mAppliedTextureSerialPS[t] = 0; + } + + for (int t = 0; t < MAX_VERTEX_TEXTURE_IMAGE_UNITS_VTF; t++) + { + mAppliedTextureSerialVS[t] = 0; + } + + mAppliedProgramBinarySerial = 0; + mAppliedRenderTargetSerial = 0; + mAppliedDepthbufferSerial = 0; + mAppliedStencilbufferSerial = 0; + mAppliedIBSerial = 0; + mDepthStencilInitialized = false; + mViewportInitialized = false; + mRenderTargetDescInitialized = false; + + mVertexDeclarationCache.markStateDirty(); + + mClearStateDirty = true; + mCullStateDirty = true; + mDepthStateDirty = true; + mMaskStateDirty = true; + mBlendStateDirty = true; + mStencilStateDirty = true; + mPolygonOffsetStateDirty = true; + mScissorStateDirty = true; + mSampleStateDirty = true; + mDitherStateDirty = true; + mFrontFaceDirty = true; + mDxUniformsDirty = true; +} + +void Context::markDxUniformsDirty() +{ + mDxUniformsDirty = true; +} + +void Context::markContextLost() +{ + if (mResetStrategy == GL_LOSE_CONTEXT_ON_RESET_EXT) + mResetStatus = GL_UNKNOWN_CONTEXT_RESET_EXT; + mContextLost = true; +} + +bool Context::isContextLost() +{ + return mContextLost; +} + +void Context::setClearColor(float red, float green, float blue, float alpha) +{ + mState.colorClearValue.red = red; + mState.colorClearValue.green = green; + mState.colorClearValue.blue = blue; + mState.colorClearValue.alpha = alpha; +} + +void Context::setClearDepth(float depth) +{ + mState.depthClearValue = depth; +} + +void Context::setClearStencil(int stencil) +{ + mState.stencilClearValue = stencil; +} + +void Context::setCullFace(bool enabled) +{ + if (mState.cullFace != enabled) + { + mState.cullFace = enabled; + mCullStateDirty = true; + } +} + +bool Context::isCullFaceEnabled() const +{ + return mState.cullFace; +} + +void Context::setCullMode(GLenum mode) +{ + if (mState.cullMode != mode) + { + mState.cullMode = mode; + mCullStateDirty = true; + } +} + +void Context::setFrontFace(GLenum front) +{ + if (mState.frontFace != front) + { + mState.frontFace = front; + mFrontFaceDirty = true; + } +} + +void Context::setDepthTest(bool enabled) +{ + if (mState.depthTest != enabled) + { + mState.depthTest = enabled; + mDepthStateDirty = true; + } +} + +bool Context::isDepthTestEnabled() const +{ + return mState.depthTest; +} + +void Context::setDepthFunc(GLenum depthFunc) +{ + if (mState.depthFunc != depthFunc) + { + mState.depthFunc = depthFunc; + mDepthStateDirty = true; + } +} + +void Context::setDepthRange(float zNear, float zFar) +{ + mState.zNear = zNear; + mState.zFar = zFar; +} + +void Context::setBlend(bool enabled) +{ + if (mState.blend != enabled) + { + mState.blend = enabled; + mBlendStateDirty = true; + } +} + +bool Context::isBlendEnabled() const +{ + return mState.blend; +} + +void Context::setBlendFactors(GLenum sourceRGB, GLenum destRGB, GLenum sourceAlpha, GLenum destAlpha) +{ + if (mState.sourceBlendRGB != sourceRGB || + mState.sourceBlendAlpha != sourceAlpha || + mState.destBlendRGB != destRGB || + mState.destBlendAlpha != destAlpha) + { + mState.sourceBlendRGB = sourceRGB; + mState.destBlendRGB = destRGB; + mState.sourceBlendAlpha = sourceAlpha; + mState.destBlendAlpha = destAlpha; + mBlendStateDirty = true; + } +} + +void Context::setBlendColor(float red, float green, float blue, float alpha) +{ + if (mState.blendColor.red != red || + mState.blendColor.green != green || + mState.blendColor.blue != blue || + mState.blendColor.alpha != alpha) + { + mState.blendColor.red = red; + mState.blendColor.green = green; + mState.blendColor.blue = blue; + mState.blendColor.alpha = alpha; + mBlendStateDirty = true; + } +} + +void Context::setBlendEquation(GLenum rgbEquation, GLenum alphaEquation) +{ + if (mState.blendEquationRGB != rgbEquation || + mState.blendEquationAlpha != alphaEquation) + { + mState.blendEquationRGB = rgbEquation; + mState.blendEquationAlpha = alphaEquation; + mBlendStateDirty = true; + } +} + +void Context::setStencilTest(bool enabled) +{ + if (mState.stencilTest != enabled) + { + mState.stencilTest = enabled; + mStencilStateDirty = true; + } +} + +bool Context::isStencilTestEnabled() const +{ + return mState.stencilTest; +} + +void Context::setStencilParams(GLenum stencilFunc, GLint stencilRef, GLuint stencilMask) +{ + if (mState.stencilFunc != stencilFunc || + mState.stencilRef != stencilRef || + mState.stencilMask != stencilMask) + { + mState.stencilFunc = stencilFunc; + mState.stencilRef = (stencilRef > 0) ? stencilRef : 0; + mState.stencilMask = stencilMask; + mStencilStateDirty = true; + } +} + +void Context::setStencilBackParams(GLenum stencilBackFunc, GLint stencilBackRef, GLuint stencilBackMask) +{ + if (mState.stencilBackFunc != stencilBackFunc || + mState.stencilBackRef != stencilBackRef || + mState.stencilBackMask != stencilBackMask) + { + mState.stencilBackFunc = stencilBackFunc; + mState.stencilBackRef = (stencilBackRef > 0) ? stencilBackRef : 0; + mState.stencilBackMask = stencilBackMask; + mStencilStateDirty = true; + } +} + +void Context::setStencilWritemask(GLuint stencilWritemask) +{ + if (mState.stencilWritemask != stencilWritemask) + { + mState.stencilWritemask = stencilWritemask; + mStencilStateDirty = true; + } +} + +void Context::setStencilBackWritemask(GLuint stencilBackWritemask) +{ + if (mState.stencilBackWritemask != stencilBackWritemask) + { + mState.stencilBackWritemask = stencilBackWritemask; + mStencilStateDirty = true; + } +} + +void Context::setStencilOperations(GLenum stencilFail, GLenum stencilPassDepthFail, GLenum stencilPassDepthPass) +{ + if (mState.stencilFail != stencilFail || + mState.stencilPassDepthFail != stencilPassDepthFail || + mState.stencilPassDepthPass != stencilPassDepthPass) + { + mState.stencilFail = stencilFail; + mState.stencilPassDepthFail = stencilPassDepthFail; + mState.stencilPassDepthPass = stencilPassDepthPass; + mStencilStateDirty = true; + } +} + +void Context::setStencilBackOperations(GLenum stencilBackFail, GLenum stencilBackPassDepthFail, GLenum stencilBackPassDepthPass) +{ + if (mState.stencilBackFail != stencilBackFail || + mState.stencilBackPassDepthFail != stencilBackPassDepthFail || + mState.stencilBackPassDepthPass != stencilBackPassDepthPass) + { + mState.stencilBackFail = stencilBackFail; + mState.stencilBackPassDepthFail = stencilBackPassDepthFail; + mState.stencilBackPassDepthPass = stencilBackPassDepthPass; + mStencilStateDirty = true; + } +} + +void Context::setPolygonOffsetFill(bool enabled) +{ + if (mState.polygonOffsetFill != enabled) + { + mState.polygonOffsetFill = enabled; + mPolygonOffsetStateDirty = true; + } +} + +bool Context::isPolygonOffsetFillEnabled() const +{ + return mState.polygonOffsetFill; + +} + +void Context::setPolygonOffsetParams(GLfloat factor, GLfloat units) +{ + if (mState.polygonOffsetFactor != factor || + mState.polygonOffsetUnits != units) + { + mState.polygonOffsetFactor = factor; + mState.polygonOffsetUnits = units; + mPolygonOffsetStateDirty = true; + } +} + +void Context::setSampleAlphaToCoverage(bool enabled) +{ + if (mState.sampleAlphaToCoverage != enabled) + { + mState.sampleAlphaToCoverage = enabled; + mSampleStateDirty = true; + } +} + +bool Context::isSampleAlphaToCoverageEnabled() const +{ + return mState.sampleAlphaToCoverage; +} + +void Context::setSampleCoverage(bool enabled) +{ + if (mState.sampleCoverage != enabled) + { + mState.sampleCoverage = enabled; + mSampleStateDirty = true; + } +} + +bool Context::isSampleCoverageEnabled() const +{ + return mState.sampleCoverage; +} + +void Context::setSampleCoverageParams(GLclampf value, bool invert) +{ + if (mState.sampleCoverageValue != value || + mState.sampleCoverageInvert != invert) + { + mState.sampleCoverageValue = value; + mState.sampleCoverageInvert = invert; + mSampleStateDirty = true; + } +} + +void Context::setScissorTest(bool enabled) +{ + if (mState.scissorTest != enabled) + { + mState.scissorTest = enabled; + mScissorStateDirty = true; + } +} + +bool Context::isScissorTestEnabled() const +{ + return mState.scissorTest; +} + +void Context::setDither(bool enabled) +{ + if (mState.dither != enabled) + { + mState.dither = enabled; + mDitherStateDirty = true; + } +} + +bool Context::isDitherEnabled() const +{ + return mState.dither; +} + +void Context::setLineWidth(GLfloat width) +{ + mState.lineWidth = width; +} + +void Context::setGenerateMipmapHint(GLenum hint) +{ + mState.generateMipmapHint = hint; +} + +void Context::setFragmentShaderDerivativeHint(GLenum hint) +{ + mState.fragmentShaderDerivativeHint = hint; + // TODO: Propagate the hint to shader translator so we can write + // ddx, ddx_coarse, or ddx_fine depending on the hint. + // Ignore for now. It is valid for implementations to ignore hint. +} + +void Context::setViewportParams(GLint x, GLint y, GLsizei width, GLsizei height) +{ + mState.viewportX = x; + mState.viewportY = y; + mState.viewportWidth = width; + mState.viewportHeight = height; +} + +void Context::setScissorParams(GLint x, GLint y, GLsizei width, GLsizei height) +{ + if (mState.scissorX != x || mState.scissorY != y || + mState.scissorWidth != width || mState.scissorHeight != height) + { + mState.scissorX = x; + mState.scissorY = y; + mState.scissorWidth = width; + mState.scissorHeight = height; + mScissorStateDirty = true; + } +} + +void Context::setColorMask(bool red, bool green, bool blue, bool alpha) +{ + if (mState.colorMaskRed != red || mState.colorMaskGreen != green || + mState.colorMaskBlue != blue || mState.colorMaskAlpha != alpha) + { + mState.colorMaskRed = red; + mState.colorMaskGreen = green; + mState.colorMaskBlue = blue; + mState.colorMaskAlpha = alpha; + mMaskStateDirty = true; + } +} + +void Context::setDepthMask(bool mask) +{ + if (mState.depthMask != mask) + { + mState.depthMask = mask; + mMaskStateDirty = true; + } +} + +void Context::setActiveSampler(unsigned int active) +{ + mState.activeSampler = active; +} + +GLuint Context::getReadFramebufferHandle() const +{ + return mState.readFramebuffer; +} + +GLuint Context::getDrawFramebufferHandle() const +{ + return mState.drawFramebuffer; +} + +GLuint Context::getRenderbufferHandle() const +{ + return mState.renderbuffer.id(); +} + +GLuint Context::getArrayBufferHandle() const +{ + return mState.arrayBuffer.id(); +} + +GLuint Context::getActiveQuery(GLenum target) const +{ + Query *queryObject = NULL; + + switch (target) + { + case GL_ANY_SAMPLES_PASSED_EXT: + queryObject = mState.activeQuery[QUERY_ANY_SAMPLES_PASSED].get(); + break; + case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT: + queryObject = mState.activeQuery[QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE].get(); + break; + default: + ASSERT(false); + } + + if (queryObject) + { + return queryObject->id(); + } + else + { + return 0; + } +} + +void Context::setEnableVertexAttribArray(unsigned int attribNum, bool enabled) +{ + mState.vertexAttribute[attribNum].mArrayEnabled = enabled; +} + +const VertexAttribute &Context::getVertexAttribState(unsigned int attribNum) +{ + return mState.vertexAttribute[attribNum]; +} + +void Context::setVertexAttribState(unsigned int attribNum, Buffer *boundBuffer, GLint size, GLenum type, bool normalized, + GLsizei stride, const void *pointer) +{ + mState.vertexAttribute[attribNum].mBoundBuffer.set(boundBuffer); + mState.vertexAttribute[attribNum].mSize = size; + mState.vertexAttribute[attribNum].mType = type; + mState.vertexAttribute[attribNum].mNormalized = normalized; + mState.vertexAttribute[attribNum].mStride = stride; + mState.vertexAttribute[attribNum].mPointer = pointer; +} + +const void *Context::getVertexAttribPointer(unsigned int attribNum) const +{ + return mState.vertexAttribute[attribNum].mPointer; +} + +const VertexAttributeArray &Context::getVertexAttributes() +{ + return mState.vertexAttribute; +} + +void Context::setPackAlignment(GLint alignment) +{ + mState.packAlignment = alignment; +} + +GLint Context::getPackAlignment() const +{ + return mState.packAlignment; +} + +void Context::setUnpackAlignment(GLint alignment) +{ + mState.unpackAlignment = alignment; +} + +GLint Context::getUnpackAlignment() const +{ + return mState.unpackAlignment; +} + +void Context::setPackReverseRowOrder(bool reverseRowOrder) +{ + mState.packReverseRowOrder = reverseRowOrder; +} + +bool Context::getPackReverseRowOrder() const +{ + return mState.packReverseRowOrder; +} + +GLuint Context::createBuffer() +{ + return mResourceManager->createBuffer(); +} + +GLuint Context::createProgram() +{ + return mResourceManager->createProgram(); +} + +GLuint Context::createShader(GLenum type) +{ + return mResourceManager->createShader(type); +} + +GLuint Context::createTexture() +{ + return mResourceManager->createTexture(); +} + +GLuint Context::createRenderbuffer() +{ + return mResourceManager->createRenderbuffer(); +} + +// Returns an unused framebuffer name +GLuint Context::createFramebuffer() +{ + GLuint handle = mFramebufferHandleAllocator.allocate(); + + mFramebufferMap[handle] = NULL; + + return handle; +} + +GLuint Context::createFence() +{ + GLuint handle = mFenceHandleAllocator.allocate(); + + mFenceMap[handle] = new Fence(mDisplay); + + return handle; +} + +// Returns an unused query name +GLuint Context::createQuery() +{ + GLuint handle = mQueryHandleAllocator.allocate(); + + mQueryMap[handle] = NULL; + + return handle; +} + +void Context::deleteBuffer(GLuint buffer) +{ + if (mResourceManager->getBuffer(buffer)) + { + detachBuffer(buffer); + } + + mResourceManager->deleteBuffer(buffer); +} + +void Context::deleteShader(GLuint shader) +{ + mResourceManager->deleteShader(shader); +} + +void Context::deleteProgram(GLuint program) +{ + mResourceManager->deleteProgram(program); +} + +void Context::deleteTexture(GLuint texture) +{ + if (mResourceManager->getTexture(texture)) + { + detachTexture(texture); + } + + mResourceManager->deleteTexture(texture); +} + +void Context::deleteRenderbuffer(GLuint renderbuffer) +{ + if (mResourceManager->getRenderbuffer(renderbuffer)) + { + detachRenderbuffer(renderbuffer); + } + + mResourceManager->deleteRenderbuffer(renderbuffer); +} + +void Context::deleteFramebuffer(GLuint framebuffer) +{ + FramebufferMap::iterator framebufferObject = mFramebufferMap.find(framebuffer); + + if (framebufferObject != mFramebufferMap.end()) + { + detachFramebuffer(framebuffer); + + mFramebufferHandleAllocator.release(framebufferObject->first); + delete framebufferObject->second; + mFramebufferMap.erase(framebufferObject); + } +} + +void Context::deleteFence(GLuint fence) +{ + FenceMap::iterator fenceObject = mFenceMap.find(fence); + + if (fenceObject != mFenceMap.end()) + { + mFenceHandleAllocator.release(fenceObject->first); + delete fenceObject->second; + mFenceMap.erase(fenceObject); + } +} + +void Context::deleteQuery(GLuint query) +{ + QueryMap::iterator queryObject = mQueryMap.find(query); + if (queryObject != mQueryMap.end()) + { + mQueryHandleAllocator.release(queryObject->first); + if (queryObject->second) + { + queryObject->second->release(); + } + mQueryMap.erase(queryObject); + } +} + +Buffer *Context::getBuffer(GLuint handle) +{ + return mResourceManager->getBuffer(handle); +} + +Shader *Context::getShader(GLuint handle) +{ + return mResourceManager->getShader(handle); +} + +Program *Context::getProgram(GLuint handle) +{ + return mResourceManager->getProgram(handle); +} + +Texture *Context::getTexture(GLuint handle) +{ + return mResourceManager->getTexture(handle); +} + +Renderbuffer *Context::getRenderbuffer(GLuint handle) +{ + return mResourceManager->getRenderbuffer(handle); +} + +Framebuffer *Context::getReadFramebuffer() +{ + return getFramebuffer(mState.readFramebuffer); +} + +Framebuffer *Context::getDrawFramebuffer() +{ + return mBoundDrawFramebuffer; +} + +void Context::bindArrayBuffer(unsigned int buffer) +{ + mResourceManager->checkBufferAllocation(buffer); + + mState.arrayBuffer.set(getBuffer(buffer)); +} + +void Context::bindElementArrayBuffer(unsigned int buffer) +{ + mResourceManager->checkBufferAllocation(buffer); + + mState.elementArrayBuffer.set(getBuffer(buffer)); +} + +void Context::bindTexture2D(GLuint texture) +{ + mResourceManager->checkTextureAllocation(texture, TEXTURE_2D); + + mState.samplerTexture[TEXTURE_2D][mState.activeSampler].set(getTexture(texture)); +} + +void Context::bindTextureCubeMap(GLuint texture) +{ + mResourceManager->checkTextureAllocation(texture, TEXTURE_CUBE); + + mState.samplerTexture[TEXTURE_CUBE][mState.activeSampler].set(getTexture(texture)); +} + +void Context::bindReadFramebuffer(GLuint framebuffer) +{ + if (!getFramebuffer(framebuffer)) + { + mFramebufferMap[framebuffer] = new Framebuffer(); + } + + mState.readFramebuffer = framebuffer; +} + +void Context::bindDrawFramebuffer(GLuint framebuffer) +{ + if (!getFramebuffer(framebuffer)) + { + mFramebufferMap[framebuffer] = new Framebuffer(); + } + + mState.drawFramebuffer = framebuffer; + + mBoundDrawFramebuffer = getFramebuffer(framebuffer); +} + +void Context::bindRenderbuffer(GLuint renderbuffer) +{ + mResourceManager->checkRenderbufferAllocation(renderbuffer); + + mState.renderbuffer.set(getRenderbuffer(renderbuffer)); +} + +void Context::useProgram(GLuint program) +{ + GLuint priorProgram = mState.currentProgram; + mState.currentProgram = program; // Must switch before trying to delete, otherwise it only gets flagged. + + if (priorProgram != program) + { + Program *newProgram = mResourceManager->getProgram(program); + Program *oldProgram = mResourceManager->getProgram(priorProgram); + mCurrentProgramBinary.set(NULL); + mDxUniformsDirty = true; + + if (newProgram) + { + newProgram->addRef(); + mCurrentProgramBinary.set(newProgram->getProgramBinary()); + } + + if (oldProgram) + { + oldProgram->release(); + } + } +} + +void Context::linkProgram(GLuint program) +{ + Program *programObject = mResourceManager->getProgram(program); + + bool linked = programObject->link(); + + // if the current program was relinked successfully we + // need to install the new executables + if (linked && program == mState.currentProgram) + { + mCurrentProgramBinary.set(programObject->getProgramBinary()); + mDxUniformsDirty = true; + } +} + +void Context::setProgramBinary(GLuint program, const void *binary, GLint length) +{ + Program *programObject = mResourceManager->getProgram(program); + + bool loaded = programObject->setProgramBinary(binary, length); + + // if the current program was reloaded successfully we + // need to install the new executables + if (loaded && program == mState.currentProgram) + { + mCurrentProgramBinary.set(programObject->getProgramBinary()); + mDxUniformsDirty = true; + } + +} + +void Context::beginQuery(GLenum target, GLuint query) +{ + // From EXT_occlusion_query_boolean: If BeginQueryEXT is called with an <id> + // of zero, if the active query object name for <target> is non-zero (for the + // targets ANY_SAMPLES_PASSED_EXT and ANY_SAMPLES_PASSED_CONSERVATIVE_EXT, if + // the active query for either target is non-zero), if <id> is the name of an + // existing query object whose type does not match <target>, or if <id> is the + // active query object name for any query type, the error INVALID_OPERATION is + // generated. + + // Ensure no other queries are active + // NOTE: If other queries than occlusion are supported, we will need to check + // separately that: + // a) The query ID passed is not the current active query for any target/type + // b) There are no active queries for the requested target (and in the case + // of GL_ANY_SAMPLES_PASSED_EXT and GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT, + // no query may be active for either if glBeginQuery targets either. + for (int i = 0; i < QUERY_TYPE_COUNT; i++) + { + if (mState.activeQuery[i].get() != NULL) + { + return error(GL_INVALID_OPERATION); + } + } + + QueryType qType; + switch (target) + { + case GL_ANY_SAMPLES_PASSED_EXT: + qType = QUERY_ANY_SAMPLES_PASSED; + break; + case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT: + qType = QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE; + break; + default: + ASSERT(false); + return; + } + + Query *queryObject = getQuery(query, true, target); + + // check that name was obtained with glGenQueries + if (!queryObject) + { + return error(GL_INVALID_OPERATION); + } + + // check for type mismatch + if (queryObject->getType() != target) + { + return error(GL_INVALID_OPERATION); + } + + // set query as active for specified target + mState.activeQuery[qType].set(queryObject); + + // begin query + queryObject->begin(); +} + +void Context::endQuery(GLenum target) +{ + QueryType qType; + + switch (target) + { + case GL_ANY_SAMPLES_PASSED_EXT: + qType = QUERY_ANY_SAMPLES_PASSED; + break; + case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT: + qType = QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE; + break; + default: + ASSERT(false); + return; + } + + Query *queryObject = mState.activeQuery[qType].get(); + + if (queryObject == NULL) + { + return error(GL_INVALID_OPERATION); + } + + queryObject->end(); + + mState.activeQuery[qType].set(NULL); +} + +void Context::setFramebufferZero(Framebuffer *buffer) +{ + delete mFramebufferMap[0]; + mFramebufferMap[0] = buffer; + if (mState.drawFramebuffer == 0) + { + mBoundDrawFramebuffer = buffer; + } +} + +void Context::setRenderbufferStorage(RenderbufferStorage *renderbuffer) +{ + Renderbuffer *renderbufferObject = mState.renderbuffer.get(); + renderbufferObject->setStorage(renderbuffer); +} + +Framebuffer *Context::getFramebuffer(unsigned int handle) +{ + FramebufferMap::iterator framebuffer = mFramebufferMap.find(handle); + + if (framebuffer == mFramebufferMap.end()) + { + return NULL; + } + else + { + return framebuffer->second; + } +} + +Fence *Context::getFence(unsigned int handle) +{ + FenceMap::iterator fence = mFenceMap.find(handle); + + if (fence == mFenceMap.end()) + { + return NULL; + } + else + { + return fence->second; + } +} + +Query *Context::getQuery(unsigned int handle, bool create, GLenum type) +{ + QueryMap::iterator query = mQueryMap.find(handle); + + if (query == mQueryMap.end()) + { + return NULL; + } + else + { + if (!query->second && create) + { + query->second = new Query(handle, type); + query->second->addRef(); + } + return query->second; + } +} + +Buffer *Context::getArrayBuffer() +{ + return mState.arrayBuffer.get(); +} + +Buffer *Context::getElementArrayBuffer() +{ + return mState.elementArrayBuffer.get(); +} + +ProgramBinary *Context::getCurrentProgramBinary() +{ + return mCurrentProgramBinary.get(); +} + +Texture2D *Context::getTexture2D() +{ + return static_cast<Texture2D*>(getSamplerTexture(mState.activeSampler, TEXTURE_2D)); +} + +TextureCubeMap *Context::getTextureCubeMap() +{ + return static_cast<TextureCubeMap*>(getSamplerTexture(mState.activeSampler, TEXTURE_CUBE)); +} + +Texture *Context::getSamplerTexture(unsigned int sampler, TextureType type) +{ + GLuint texid = mState.samplerTexture[type][sampler].id(); + + if (texid == 0) // Special case: 0 refers to different initial textures based on the target + { + switch (type) + { + default: UNREACHABLE(); + case TEXTURE_2D: return mTexture2DZero.get(); + case TEXTURE_CUBE: return mTextureCubeMapZero.get(); + } + } + + return mState.samplerTexture[type][sampler].get(); +} + +bool Context::getBooleanv(GLenum pname, GLboolean *params) +{ + switch (pname) + { + case GL_SHADER_COMPILER: *params = GL_TRUE; break; + case GL_SAMPLE_COVERAGE_INVERT: *params = mState.sampleCoverageInvert; break; + case GL_DEPTH_WRITEMASK: *params = mState.depthMask; break; + case GL_COLOR_WRITEMASK: + params[0] = mState.colorMaskRed; + params[1] = mState.colorMaskGreen; + params[2] = mState.colorMaskBlue; + params[3] = mState.colorMaskAlpha; + break; + case GL_CULL_FACE: *params = mState.cullFace; break; + case GL_POLYGON_OFFSET_FILL: *params = mState.polygonOffsetFill; break; + case GL_SAMPLE_ALPHA_TO_COVERAGE: *params = mState.sampleAlphaToCoverage; break; + case GL_SAMPLE_COVERAGE: *params = mState.sampleCoverage; break; + case GL_SCISSOR_TEST: *params = mState.scissorTest; break; + case GL_STENCIL_TEST: *params = mState.stencilTest; break; + case GL_DEPTH_TEST: *params = mState.depthTest; break; + case GL_BLEND: *params = mState.blend; break; + case GL_DITHER: *params = mState.dither; break; + case GL_CONTEXT_ROBUST_ACCESS_EXT: *params = mRobustAccess ? GL_TRUE : GL_FALSE; break; + default: + return false; + } + + return true; +} + +bool Context::getFloatv(GLenum pname, GLfloat *params) +{ + // Please note: DEPTH_CLEAR_VALUE is included in our internal getFloatv implementation + // because it is stored as a float, despite the fact that the GL ES 2.0 spec names + // GetIntegerv as its native query function. As it would require conversion in any + // case, this should make no difference to the calling application. + switch (pname) + { + case GL_LINE_WIDTH: *params = mState.lineWidth; break; + case GL_SAMPLE_COVERAGE_VALUE: *params = mState.sampleCoverageValue; break; + case GL_DEPTH_CLEAR_VALUE: *params = mState.depthClearValue; break; + case GL_POLYGON_OFFSET_FACTOR: *params = mState.polygonOffsetFactor; break; + case GL_POLYGON_OFFSET_UNITS: *params = mState.polygonOffsetUnits; break; + case GL_ALIASED_LINE_WIDTH_RANGE: + params[0] = gl::ALIASED_LINE_WIDTH_RANGE_MIN; + params[1] = gl::ALIASED_LINE_WIDTH_RANGE_MAX; + break; + case GL_ALIASED_POINT_SIZE_RANGE: + params[0] = gl::ALIASED_POINT_SIZE_RANGE_MIN; + params[1] = getMaximumPointSize(); + break; + case GL_DEPTH_RANGE: + params[0] = mState.zNear; + params[1] = mState.zFar; + break; + case GL_COLOR_CLEAR_VALUE: + params[0] = mState.colorClearValue.red; + params[1] = mState.colorClearValue.green; + params[2] = mState.colorClearValue.blue; + params[3] = mState.colorClearValue.alpha; + break; + case GL_BLEND_COLOR: + params[0] = mState.blendColor.red; + params[1] = mState.blendColor.green; + params[2] = mState.blendColor.blue; + params[3] = mState.blendColor.alpha; + break; + case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: + if (!supportsTextureFilterAnisotropy()) + { + return false; + } + *params = mMaxTextureAnisotropy; + break; + default: + return false; + } + + return true; +} + +bool Context::getIntegerv(GLenum pname, GLint *params) +{ + // Please note: DEPTH_CLEAR_VALUE is not included in our internal getIntegerv implementation + // because it is stored as a float, despite the fact that the GL ES 2.0 spec names + // GetIntegerv as its native query function. As it would require conversion in any + // case, this should make no difference to the calling application. You may find it in + // Context::getFloatv. + switch (pname) + { + case GL_MAX_VERTEX_ATTRIBS: *params = gl::MAX_VERTEX_ATTRIBS; break; + case GL_MAX_VERTEX_UNIFORM_VECTORS: *params = gl::MAX_VERTEX_UNIFORM_VECTORS; break; + case GL_MAX_VARYING_VECTORS: *params = getMaximumVaryingVectors(); break; + case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: *params = getMaximumCombinedTextureImageUnits(); break; + case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS: *params = getMaximumVertexTextureImageUnits(); break; + case GL_MAX_TEXTURE_IMAGE_UNITS: *params = gl::MAX_TEXTURE_IMAGE_UNITS; break; + case GL_MAX_FRAGMENT_UNIFORM_VECTORS: *params = getMaximumFragmentUniformVectors(); break; + case GL_MAX_RENDERBUFFER_SIZE: *params = getMaximumRenderbufferDimension(); break; + case GL_NUM_SHADER_BINARY_FORMATS: *params = 0; break; + case GL_SHADER_BINARY_FORMATS: /* no shader binary formats are supported */ break; + case GL_ARRAY_BUFFER_BINDING: *params = mState.arrayBuffer.id(); break; + case GL_ELEMENT_ARRAY_BUFFER_BINDING: *params = mState.elementArrayBuffer.id(); break; + //case GL_FRAMEBUFFER_BINDING: // now equivalent to GL_DRAW_FRAMEBUFFER_BINDING_ANGLE + case GL_DRAW_FRAMEBUFFER_BINDING_ANGLE: *params = mState.drawFramebuffer; break; + case GL_READ_FRAMEBUFFER_BINDING_ANGLE: *params = mState.readFramebuffer; break; + case GL_RENDERBUFFER_BINDING: *params = mState.renderbuffer.id(); break; + case GL_CURRENT_PROGRAM: *params = mState.currentProgram; break; + case GL_PACK_ALIGNMENT: *params = mState.packAlignment; break; + case GL_PACK_REVERSE_ROW_ORDER_ANGLE: *params = mState.packReverseRowOrder; break; + case GL_UNPACK_ALIGNMENT: *params = mState.unpackAlignment; break; + case GL_GENERATE_MIPMAP_HINT: *params = mState.generateMipmapHint; break; + case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES: *params = mState.fragmentShaderDerivativeHint; break; + case GL_ACTIVE_TEXTURE: *params = (mState.activeSampler + GL_TEXTURE0); break; + case GL_STENCIL_FUNC: *params = mState.stencilFunc; break; + case GL_STENCIL_REF: *params = mState.stencilRef; break; + case GL_STENCIL_VALUE_MASK: *params = mState.stencilMask; break; + case GL_STENCIL_BACK_FUNC: *params = mState.stencilBackFunc; break; + case GL_STENCIL_BACK_REF: *params = mState.stencilBackRef; break; + case GL_STENCIL_BACK_VALUE_MASK: *params = mState.stencilBackMask; break; + case GL_STENCIL_FAIL: *params = mState.stencilFail; break; + case GL_STENCIL_PASS_DEPTH_FAIL: *params = mState.stencilPassDepthFail; break; + case GL_STENCIL_PASS_DEPTH_PASS: *params = mState.stencilPassDepthPass; break; + case GL_STENCIL_BACK_FAIL: *params = mState.stencilBackFail; break; + case GL_STENCIL_BACK_PASS_DEPTH_FAIL: *params = mState.stencilBackPassDepthFail; break; + case GL_STENCIL_BACK_PASS_DEPTH_PASS: *params = mState.stencilBackPassDepthPass; break; + case GL_DEPTH_FUNC: *params = mState.depthFunc; break; + case GL_BLEND_SRC_RGB: *params = mState.sourceBlendRGB; break; + case GL_BLEND_SRC_ALPHA: *params = mState.sourceBlendAlpha; break; + case GL_BLEND_DST_RGB: *params = mState.destBlendRGB; break; + case GL_BLEND_DST_ALPHA: *params = mState.destBlendAlpha; break; + case GL_BLEND_EQUATION_RGB: *params = mState.blendEquationRGB; break; + case GL_BLEND_EQUATION_ALPHA: *params = mState.blendEquationAlpha; break; + case GL_STENCIL_WRITEMASK: *params = mState.stencilWritemask; break; + case GL_STENCIL_BACK_WRITEMASK: *params = mState.stencilBackWritemask; break; + case GL_STENCIL_CLEAR_VALUE: *params = mState.stencilClearValue; break; + case GL_SUBPIXEL_BITS: *params = 4; break; + case GL_MAX_TEXTURE_SIZE: *params = getMaximumTextureDimension(); break; + case GL_MAX_CUBE_MAP_TEXTURE_SIZE: *params = getMaximumCubeTextureDimension(); break; + case GL_NUM_COMPRESSED_TEXTURE_FORMATS: + params[0] = mNumCompressedTextureFormats; + break; + case GL_MAX_SAMPLES_ANGLE: + { + GLsizei maxSamples = getMaxSupportedSamples(); + if (maxSamples != 0) + { + *params = maxSamples; + } + else + { + return false; + } + + break; + } + case GL_SAMPLE_BUFFERS: + case GL_SAMPLES: + { + gl::Framebuffer *framebuffer = getDrawFramebuffer(); + if (framebuffer->completeness() == GL_FRAMEBUFFER_COMPLETE) + { + switch (pname) + { + case GL_SAMPLE_BUFFERS: + if (framebuffer->getSamples() != 0) + { + *params = 1; + } + else + { + *params = 0; + } + break; + case GL_SAMPLES: + *params = framebuffer->getSamples(); + break; + } + } + else + { + *params = 0; + } + } + break; + case GL_IMPLEMENTATION_COLOR_READ_TYPE: + case GL_IMPLEMENTATION_COLOR_READ_FORMAT: + { + GLenum format, type; + if (getCurrentReadFormatType(&format, &type)) + { + if (pname == GL_IMPLEMENTATION_COLOR_READ_FORMAT) + *params = format; + else + *params = type; + } + } + break; + case GL_MAX_VIEWPORT_DIMS: + { + int maxDimension = std::max(getMaximumRenderbufferDimension(), getMaximumTextureDimension()); + params[0] = maxDimension; + params[1] = maxDimension; + } + break; + case GL_COMPRESSED_TEXTURE_FORMATS: + { + if (supportsDXT1Textures()) + { + *params++ = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; + *params++ = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; + } + if (supportsDXT3Textures()) + { + *params++ = GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE; + } + if (supportsDXT5Textures()) + { + *params++ = GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE; + } + } + break; + case GL_VIEWPORT: + params[0] = mState.viewportX; + params[1] = mState.viewportY; + params[2] = mState.viewportWidth; + params[3] = mState.viewportHeight; + break; + case GL_SCISSOR_BOX: + params[0] = mState.scissorX; + params[1] = mState.scissorY; + params[2] = mState.scissorWidth; + params[3] = mState.scissorHeight; + break; + case GL_CULL_FACE_MODE: *params = mState.cullMode; break; + case GL_FRONT_FACE: *params = mState.frontFace; break; + case GL_RED_BITS: + case GL_GREEN_BITS: + case GL_BLUE_BITS: + case GL_ALPHA_BITS: + { + gl::Framebuffer *framebuffer = getDrawFramebuffer(); + gl::Renderbuffer *colorbuffer = framebuffer->getColorbuffer(); + + if (colorbuffer) + { + switch (pname) + { + case GL_RED_BITS: *params = colorbuffer->getRedSize(); break; + case GL_GREEN_BITS: *params = colorbuffer->getGreenSize(); break; + case GL_BLUE_BITS: *params = colorbuffer->getBlueSize(); break; + case GL_ALPHA_BITS: *params = colorbuffer->getAlphaSize(); break; + } + } + else + { + *params = 0; + } + } + break; + case GL_DEPTH_BITS: + { + gl::Framebuffer *framebuffer = getDrawFramebuffer(); + gl::Renderbuffer *depthbuffer = framebuffer->getDepthbuffer(); + + if (depthbuffer) + { + *params = depthbuffer->getDepthSize(); + } + else + { + *params = 0; + } + } + break; + case GL_STENCIL_BITS: + { + gl::Framebuffer *framebuffer = getDrawFramebuffer(); + gl::Renderbuffer *stencilbuffer = framebuffer->getStencilbuffer(); + + if (stencilbuffer) + { + *params = stencilbuffer->getStencilSize(); + } + else + { + *params = 0; + } + } + break; + case GL_TEXTURE_BINDING_2D: + { + if (mState.activeSampler < 0 || mState.activeSampler > getMaximumCombinedTextureImageUnits() - 1) + { + error(GL_INVALID_OPERATION); + return false; + } + + *params = mState.samplerTexture[TEXTURE_2D][mState.activeSampler].id(); + } + break; + case GL_TEXTURE_BINDING_CUBE_MAP: + { + if (mState.activeSampler < 0 || mState.activeSampler > getMaximumCombinedTextureImageUnits() - 1) + { + error(GL_INVALID_OPERATION); + return false; + } + + *params = mState.samplerTexture[TEXTURE_CUBE][mState.activeSampler].id(); + } + break; + case GL_RESET_NOTIFICATION_STRATEGY_EXT: + *params = mResetStrategy; + break; + case GL_NUM_PROGRAM_BINARY_FORMATS_OES: + *params = 1; + break; + case GL_PROGRAM_BINARY_FORMATS_OES: + *params = GL_PROGRAM_BINARY_ANGLE; + break; + default: + return false; + } + + return true; +} + +bool Context::getQueryParameterInfo(GLenum pname, GLenum *type, unsigned int *numParams) +{ + // Please note: the query type returned for DEPTH_CLEAR_VALUE in this implementation + // is FLOAT rather than INT, as would be suggested by the GL ES 2.0 spec. This is due + // to the fact that it is stored internally as a float, and so would require conversion + // if returned from Context::getIntegerv. Since this conversion is already implemented + // in the case that one calls glGetIntegerv to retrieve a float-typed state variable, we + // place DEPTH_CLEAR_VALUE with the floats. This should make no difference to the calling + // application. + switch (pname) + { + case GL_COMPRESSED_TEXTURE_FORMATS: + { + *type = GL_INT; + *numParams = mNumCompressedTextureFormats; + } + break; + case GL_SHADER_BINARY_FORMATS: + { + *type = GL_INT; + *numParams = 0; + } + break; + case GL_MAX_VERTEX_ATTRIBS: + case GL_MAX_VERTEX_UNIFORM_VECTORS: + case GL_MAX_VARYING_VECTORS: + case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: + case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS: + case GL_MAX_TEXTURE_IMAGE_UNITS: + case GL_MAX_FRAGMENT_UNIFORM_VECTORS: + case GL_MAX_RENDERBUFFER_SIZE: + case GL_NUM_SHADER_BINARY_FORMATS: + case GL_NUM_COMPRESSED_TEXTURE_FORMATS: + case GL_ARRAY_BUFFER_BINDING: + case GL_FRAMEBUFFER_BINDING: + case GL_RENDERBUFFER_BINDING: + case GL_CURRENT_PROGRAM: + case GL_PACK_ALIGNMENT: + case GL_PACK_REVERSE_ROW_ORDER_ANGLE: + case GL_UNPACK_ALIGNMENT: + case GL_GENERATE_MIPMAP_HINT: + case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES: + case GL_RED_BITS: + case GL_GREEN_BITS: + case GL_BLUE_BITS: + case GL_ALPHA_BITS: + case GL_DEPTH_BITS: + case GL_STENCIL_BITS: + case GL_ELEMENT_ARRAY_BUFFER_BINDING: + case GL_CULL_FACE_MODE: + case GL_FRONT_FACE: + case GL_ACTIVE_TEXTURE: + case GL_STENCIL_FUNC: + case GL_STENCIL_VALUE_MASK: + case GL_STENCIL_REF: + case GL_STENCIL_FAIL: + case GL_STENCIL_PASS_DEPTH_FAIL: + case GL_STENCIL_PASS_DEPTH_PASS: + case GL_STENCIL_BACK_FUNC: + case GL_STENCIL_BACK_VALUE_MASK: + case GL_STENCIL_BACK_REF: + case GL_STENCIL_BACK_FAIL: + case GL_STENCIL_BACK_PASS_DEPTH_FAIL: + case GL_STENCIL_BACK_PASS_DEPTH_PASS: + case GL_DEPTH_FUNC: + case GL_BLEND_SRC_RGB: + case GL_BLEND_SRC_ALPHA: + case GL_BLEND_DST_RGB: + case GL_BLEND_DST_ALPHA: + case GL_BLEND_EQUATION_RGB: + case GL_BLEND_EQUATION_ALPHA: + case GL_STENCIL_WRITEMASK: + case GL_STENCIL_BACK_WRITEMASK: + case GL_STENCIL_CLEAR_VALUE: + case GL_SUBPIXEL_BITS: + case GL_MAX_TEXTURE_SIZE: + case GL_MAX_CUBE_MAP_TEXTURE_SIZE: + case GL_SAMPLE_BUFFERS: + case GL_SAMPLES: + case GL_IMPLEMENTATION_COLOR_READ_TYPE: + case GL_IMPLEMENTATION_COLOR_READ_FORMAT: + case GL_TEXTURE_BINDING_2D: + case GL_TEXTURE_BINDING_CUBE_MAP: + case GL_RESET_NOTIFICATION_STRATEGY_EXT: + case GL_NUM_PROGRAM_BINARY_FORMATS_OES: + case GL_PROGRAM_BINARY_FORMATS_OES: + { + *type = GL_INT; + *numParams = 1; + } + break; + case GL_MAX_SAMPLES_ANGLE: + { + if (getMaxSupportedSamples() != 0) + { + *type = GL_INT; + *numParams = 1; + } + else + { + return false; + } + } + break; + case GL_MAX_VIEWPORT_DIMS: + { + *type = GL_INT; + *numParams = 2; + } + break; + case GL_VIEWPORT: + case GL_SCISSOR_BOX: + { + *type = GL_INT; + *numParams = 4; + } + break; + case GL_SHADER_COMPILER: + case GL_SAMPLE_COVERAGE_INVERT: + case GL_DEPTH_WRITEMASK: + case GL_CULL_FACE: // CULL_FACE through DITHER are natural to IsEnabled, + case GL_POLYGON_OFFSET_FILL: // but can be retrieved through the Get{Type}v queries. + case GL_SAMPLE_ALPHA_TO_COVERAGE: // For this purpose, they are treated here as bool-natural + case GL_SAMPLE_COVERAGE: + case GL_SCISSOR_TEST: + case GL_STENCIL_TEST: + case GL_DEPTH_TEST: + case GL_BLEND: + case GL_DITHER: + case GL_CONTEXT_ROBUST_ACCESS_EXT: + { + *type = GL_BOOL; + *numParams = 1; + } + break; + case GL_COLOR_WRITEMASK: + { + *type = GL_BOOL; + *numParams = 4; + } + break; + case GL_POLYGON_OFFSET_FACTOR: + case GL_POLYGON_OFFSET_UNITS: + case GL_SAMPLE_COVERAGE_VALUE: + case GL_DEPTH_CLEAR_VALUE: + case GL_LINE_WIDTH: + { + *type = GL_FLOAT; + *numParams = 1; + } + break; + case GL_ALIASED_LINE_WIDTH_RANGE: + case GL_ALIASED_POINT_SIZE_RANGE: + case GL_DEPTH_RANGE: + { + *type = GL_FLOAT; + *numParams = 2; + } + break; + case GL_COLOR_CLEAR_VALUE: + case GL_BLEND_COLOR: + { + *type = GL_FLOAT; + *numParams = 4; + } + break; + case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: + if (!supportsTextureFilterAnisotropy()) + { + return false; + } + *type = GL_FLOAT; + *numParams = 1; + break; + default: + return false; + } + + return true; +} + +// Applies the render target surface, depth stencil surface, viewport rectangle and +// scissor rectangle to the Direct3D 9 device +bool Context::applyRenderTarget(bool ignoreViewport) +{ + Framebuffer *framebufferObject = getDrawFramebuffer(); + + if (!framebufferObject || framebufferObject->completeness() != GL_FRAMEBUFFER_COMPLETE) + { + return error(GL_INVALID_FRAMEBUFFER_OPERATION, false); + } + + // if there is no color attachment we must synthesize a NULL colorattachment + // to keep the D3D runtime happy. This should only be possible if depth texturing. + Renderbuffer *renderbufferObject = NULL; + if (framebufferObject->getColorbufferType() != GL_NONE) + { + renderbufferObject = framebufferObject->getColorbuffer(); + } + else + { + renderbufferObject = framebufferObject->getNullColorbuffer(); + } + if (!renderbufferObject) + { + ERR("unable to locate renderbuffer for FBO."); + return false; + } + + bool renderTargetChanged = false; + unsigned int renderTargetSerial = renderbufferObject->getSerial(); + if (renderTargetSerial != mAppliedRenderTargetSerial) + { + IDirect3DSurface9 *renderTarget = renderbufferObject->getRenderTarget(); + if (!renderTarget) + { + ERR("render target pointer unexpectedly null."); + return false; // Context must be lost + } + mDevice->SetRenderTarget(0, renderTarget); + mAppliedRenderTargetSerial = renderTargetSerial; + mScissorStateDirty = true; // Scissor area must be clamped to render target's size-- this is different for different render targets. + renderTargetChanged = true; + renderTarget->Release(); + } + + IDirect3DSurface9 *depthStencil = NULL; + unsigned int depthbufferSerial = 0; + unsigned int stencilbufferSerial = 0; + if (framebufferObject->getDepthbufferType() != GL_NONE) + { + Renderbuffer *depthbuffer = framebufferObject->getDepthbuffer(); + depthStencil = depthbuffer->getDepthStencil(); + if (!depthStencil) + { + ERR("Depth stencil pointer unexpectedly null."); + return false; + } + + depthbufferSerial = depthbuffer->getSerial(); + } + else if (framebufferObject->getStencilbufferType() != GL_NONE) + { + Renderbuffer *stencilbuffer = framebufferObject->getStencilbuffer(); + depthStencil = stencilbuffer->getDepthStencil(); + if (!depthStencil) + { + ERR("Depth stencil pointer unexpectedly null."); + return false; + } + + stencilbufferSerial = stencilbuffer->getSerial(); + } + + if (depthbufferSerial != mAppliedDepthbufferSerial || + stencilbufferSerial != mAppliedStencilbufferSerial || + !mDepthStencilInitialized) + { + mDevice->SetDepthStencilSurface(depthStencil); + mAppliedDepthbufferSerial = depthbufferSerial; + mAppliedStencilbufferSerial = stencilbufferSerial; + mDepthStencilInitialized = true; + } + + if (depthStencil) + { + depthStencil->Release(); + } + + if (!mRenderTargetDescInitialized || renderTargetChanged) + { + IDirect3DSurface9 *renderTarget = renderbufferObject->getRenderTarget(); + if (!renderTarget) + { + return false; // Context must be lost + } + renderTarget->GetDesc(&mRenderTargetDesc); + mRenderTargetDescInitialized = true; + renderTarget->Release(); + } + + D3DVIEWPORT9 viewport; + + float zNear = clamp01(mState.zNear); + float zFar = clamp01(mState.zFar); + + if (ignoreViewport) + { + viewport.X = 0; + viewport.Y = 0; + viewport.Width = mRenderTargetDesc.Width; + viewport.Height = mRenderTargetDesc.Height; + viewport.MinZ = 0.0f; + viewport.MaxZ = 1.0f; + } + else + { + viewport.X = clamp(mState.viewportX, 0L, static_cast<LONG>(mRenderTargetDesc.Width)); + viewport.Y = clamp(mState.viewportY, 0L, static_cast<LONG>(mRenderTargetDesc.Height)); + viewport.Width = clamp(mState.viewportWidth, 0L, static_cast<LONG>(mRenderTargetDesc.Width) - static_cast<LONG>(viewport.X)); + viewport.Height = clamp(mState.viewportHeight, 0L, static_cast<LONG>(mRenderTargetDesc.Height) - static_cast<LONG>(viewport.Y)); + viewport.MinZ = zNear; + viewport.MaxZ = zFar; + } + + if (viewport.Width <= 0 || viewport.Height <= 0) + { + return false; // Nothing to render + } + + if (renderTargetChanged || !mViewportInitialized || memcmp(&viewport, &mSetViewport, sizeof mSetViewport) != 0) + { + mDevice->SetViewport(&viewport); + mSetViewport = viewport; + mViewportInitialized = true; + mDxUniformsDirty = true; + } + + if (mScissorStateDirty) + { + if (mState.scissorTest) + { + RECT rect; + rect.left = clamp(mState.scissorX, 0L, static_cast<LONG>(mRenderTargetDesc.Width)); + rect.top = clamp(mState.scissorY, 0L, static_cast<LONG>(mRenderTargetDesc.Height)); + rect.right = clamp(mState.scissorX + mState.scissorWidth, 0L, static_cast<LONG>(mRenderTargetDesc.Width)); + rect.bottom = clamp(mState.scissorY + mState.scissorHeight, 0L, static_cast<LONG>(mRenderTargetDesc.Height)); + mDevice->SetScissorRect(&rect); + mDevice->SetRenderState(D3DRS_SCISSORTESTENABLE, TRUE); + } + else + { + mDevice->SetRenderState(D3DRS_SCISSORTESTENABLE, FALSE); + } + + mScissorStateDirty = false; + } + + if (mState.currentProgram && mDxUniformsDirty) + { + ProgramBinary *programBinary = getCurrentProgramBinary(); + + GLint halfPixelSize = programBinary->getDxHalfPixelSizeLocation(); + GLfloat xy[2] = {1.0f / viewport.Width, -1.0f / viewport.Height}; + programBinary->setUniform2fv(halfPixelSize, 1, xy); + + // These values are used for computing gl_FragCoord in Program::linkVaryings(). + GLint coord = programBinary->getDxCoordLocation(); + GLfloat whxy[4] = {mState.viewportWidth / 2.0f, mState.viewportHeight / 2.0f, + (float)mState.viewportX + mState.viewportWidth / 2.0f, + (float)mState.viewportY + mState.viewportHeight / 2.0f}; + programBinary->setUniform4fv(coord, 1, whxy); + + GLint depth = programBinary->getDxDepthLocation(); + GLfloat dz[2] = {(zFar - zNear) / 2.0f, (zNear + zFar) / 2.0f}; + programBinary->setUniform2fv(depth, 1, dz); + + GLint depthRange = programBinary->getDxDepthRangeLocation(); + GLfloat nearFarDiff[3] = {zNear, zFar, zFar - zNear}; + programBinary->setUniform3fv(depthRange, 1, nearFarDiff); + mDxUniformsDirty = false; + } + + return true; +} + +// Applies the fixed-function state (culling, depth test, alpha blending, stenciling, etc) to the Direct3D 9 device +void Context::applyState(GLenum drawMode) +{ + ProgramBinary *programBinary = getCurrentProgramBinary(); + + Framebuffer *framebufferObject = getDrawFramebuffer(); + + GLint frontCCW = programBinary->getDxFrontCCWLocation(); + GLint ccw = (mState.frontFace == GL_CCW); + programBinary->setUniform1iv(frontCCW, 1, &ccw); + + GLint pointsOrLines = programBinary->getDxPointsOrLinesLocation(); + GLint alwaysFront = !isTriangleMode(drawMode); + programBinary->setUniform1iv(pointsOrLines, 1, &alwaysFront); + + D3DADAPTER_IDENTIFIER9 *identifier = mDisplay->getAdapterIdentifier(); + bool zeroColorMaskAllowed = identifier->VendorId != 0x1002; + // Apparently some ATI cards have a bug where a draw with a zero color + // write mask can cause later draws to have incorrect results. Instead, + // set a nonzero color write mask but modify the blend state so that no + // drawing is done. + // http://code.google.com/p/angleproject/issues/detail?id=169 + + if (mCullStateDirty || mFrontFaceDirty) + { + if (mState.cullFace) + { + mDevice->SetRenderState(D3DRS_CULLMODE, es2dx::ConvertCullMode(mState.cullMode, mState.frontFace)); + } + else + { + mDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE); + } + + mCullStateDirty = false; + } + + if (mDepthStateDirty) + { + if (mState.depthTest) + { + mDevice->SetRenderState(D3DRS_ZENABLE, D3DZB_TRUE); + mDevice->SetRenderState(D3DRS_ZFUNC, es2dx::ConvertComparison(mState.depthFunc)); + } + else + { + mDevice->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE); + } + + mDepthStateDirty = false; + } + + if (!zeroColorMaskAllowed && (mMaskStateDirty || mBlendStateDirty)) + { + mBlendStateDirty = true; + mMaskStateDirty = true; + } + + if (mBlendStateDirty) + { + if (mState.blend) + { + mDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE); + + if (mState.sourceBlendRGB != GL_CONSTANT_ALPHA && mState.sourceBlendRGB != GL_ONE_MINUS_CONSTANT_ALPHA && + mState.destBlendRGB != GL_CONSTANT_ALPHA && mState.destBlendRGB != GL_ONE_MINUS_CONSTANT_ALPHA) + { + mDevice->SetRenderState(D3DRS_BLENDFACTOR, es2dx::ConvertColor(mState.blendColor)); + } + else + { + mDevice->SetRenderState(D3DRS_BLENDFACTOR, D3DCOLOR_RGBA(unorm<8>(mState.blendColor.alpha), + unorm<8>(mState.blendColor.alpha), + unorm<8>(mState.blendColor.alpha), + unorm<8>(mState.blendColor.alpha))); + } + + mDevice->SetRenderState(D3DRS_SRCBLEND, es2dx::ConvertBlendFunc(mState.sourceBlendRGB)); + mDevice->SetRenderState(D3DRS_DESTBLEND, es2dx::ConvertBlendFunc(mState.destBlendRGB)); + mDevice->SetRenderState(D3DRS_BLENDOP, es2dx::ConvertBlendOp(mState.blendEquationRGB)); + + if (mState.sourceBlendRGB != mState.sourceBlendAlpha || + mState.destBlendRGB != mState.destBlendAlpha || + mState.blendEquationRGB != mState.blendEquationAlpha) + { + mDevice->SetRenderState(D3DRS_SEPARATEALPHABLENDENABLE, TRUE); + + mDevice->SetRenderState(D3DRS_SRCBLENDALPHA, es2dx::ConvertBlendFunc(mState.sourceBlendAlpha)); + mDevice->SetRenderState(D3DRS_DESTBLENDALPHA, es2dx::ConvertBlendFunc(mState.destBlendAlpha)); + mDevice->SetRenderState(D3DRS_BLENDOPALPHA, es2dx::ConvertBlendOp(mState.blendEquationAlpha)); + } + else + { + mDevice->SetRenderState(D3DRS_SEPARATEALPHABLENDENABLE, FALSE); + } + } + else + { + mDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE); + } + + mBlendStateDirty = false; + } + + if (mStencilStateDirty || mFrontFaceDirty) + { + if (mState.stencilTest && framebufferObject->hasStencil()) + { + mDevice->SetRenderState(D3DRS_STENCILENABLE, TRUE); + mDevice->SetRenderState(D3DRS_TWOSIDEDSTENCILMODE, TRUE); + + // FIXME: Unsupported by D3D9 + const D3DRENDERSTATETYPE D3DRS_CCW_STENCILREF = D3DRS_STENCILREF; + const D3DRENDERSTATETYPE D3DRS_CCW_STENCILMASK = D3DRS_STENCILMASK; + const D3DRENDERSTATETYPE D3DRS_CCW_STENCILWRITEMASK = D3DRS_STENCILWRITEMASK; + if (mState.stencilWritemask != mState.stencilBackWritemask || + mState.stencilRef != mState.stencilBackRef || + mState.stencilMask != mState.stencilBackMask) + { + ERR("Separate front/back stencil writemasks, reference values, or stencil mask values are invalid under WebGL."); + return error(GL_INVALID_OPERATION); + } + + // get the maximum size of the stencil ref + gl::Renderbuffer *stencilbuffer = framebufferObject->getStencilbuffer(); + GLuint maxStencil = (1 << stencilbuffer->getStencilSize()) - 1; + + mDevice->SetRenderState(mState.frontFace == GL_CCW ? D3DRS_STENCILWRITEMASK : D3DRS_CCW_STENCILWRITEMASK, mState.stencilWritemask); + mDevice->SetRenderState(mState.frontFace == GL_CCW ? D3DRS_STENCILFUNC : D3DRS_CCW_STENCILFUNC, + es2dx::ConvertComparison(mState.stencilFunc)); + + mDevice->SetRenderState(mState.frontFace == GL_CCW ? D3DRS_STENCILREF : D3DRS_CCW_STENCILREF, (mState.stencilRef < (GLint)maxStencil) ? mState.stencilRef : maxStencil); + mDevice->SetRenderState(mState.frontFace == GL_CCW ? D3DRS_STENCILMASK : D3DRS_CCW_STENCILMASK, mState.stencilMask); + + mDevice->SetRenderState(mState.frontFace == GL_CCW ? D3DRS_STENCILFAIL : D3DRS_CCW_STENCILFAIL, + es2dx::ConvertStencilOp(mState.stencilFail)); + mDevice->SetRenderState(mState.frontFace == GL_CCW ? D3DRS_STENCILZFAIL : D3DRS_CCW_STENCILZFAIL, + es2dx::ConvertStencilOp(mState.stencilPassDepthFail)); + mDevice->SetRenderState(mState.frontFace == GL_CCW ? D3DRS_STENCILPASS : D3DRS_CCW_STENCILPASS, + es2dx::ConvertStencilOp(mState.stencilPassDepthPass)); + + mDevice->SetRenderState(mState.frontFace == GL_CW ? D3DRS_STENCILWRITEMASK : D3DRS_CCW_STENCILWRITEMASK, mState.stencilBackWritemask); + mDevice->SetRenderState(mState.frontFace == GL_CW ? D3DRS_STENCILFUNC : D3DRS_CCW_STENCILFUNC, + es2dx::ConvertComparison(mState.stencilBackFunc)); + + mDevice->SetRenderState(mState.frontFace == GL_CW ? D3DRS_STENCILREF : D3DRS_CCW_STENCILREF, (mState.stencilBackRef < (GLint)maxStencil) ? mState.stencilBackRef : maxStencil); + mDevice->SetRenderState(mState.frontFace == GL_CW ? D3DRS_STENCILMASK : D3DRS_CCW_STENCILMASK, mState.stencilBackMask); + + mDevice->SetRenderState(mState.frontFace == GL_CW ? D3DRS_STENCILFAIL : D3DRS_CCW_STENCILFAIL, + es2dx::ConvertStencilOp(mState.stencilBackFail)); + mDevice->SetRenderState(mState.frontFace == GL_CW ? D3DRS_STENCILZFAIL : D3DRS_CCW_STENCILZFAIL, + es2dx::ConvertStencilOp(mState.stencilBackPassDepthFail)); + mDevice->SetRenderState(mState.frontFace == GL_CW ? D3DRS_STENCILPASS : D3DRS_CCW_STENCILPASS, + es2dx::ConvertStencilOp(mState.stencilBackPassDepthPass)); + } + else + { + mDevice->SetRenderState(D3DRS_STENCILENABLE, FALSE); + } + + mStencilStateDirty = false; + mFrontFaceDirty = false; + } + + if (mMaskStateDirty) + { + int colorMask = es2dx::ConvertColorMask(mState.colorMaskRed, mState.colorMaskGreen, + mState.colorMaskBlue, mState.colorMaskAlpha); + if (colorMask == 0 && !zeroColorMaskAllowed) + { + // Enable green channel, but set blending so nothing will be drawn. + mDevice->SetRenderState(D3DRS_COLORWRITEENABLE, D3DCOLORWRITEENABLE_GREEN); + mDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE); + + mDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_ZERO); + mDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_ONE); + mDevice->SetRenderState(D3DRS_BLENDOP, D3DBLENDOP_ADD); + } + else + { + mDevice->SetRenderState(D3DRS_COLORWRITEENABLE, colorMask); + } + mDevice->SetRenderState(D3DRS_ZWRITEENABLE, mState.depthMask ? TRUE : FALSE); + + mMaskStateDirty = false; + } + + if (mPolygonOffsetStateDirty) + { + if (mState.polygonOffsetFill) + { + gl::Renderbuffer *depthbuffer = framebufferObject->getDepthbuffer(); + if (depthbuffer) + { + mDevice->SetRenderState(D3DRS_SLOPESCALEDEPTHBIAS, *((DWORD*)&mState.polygonOffsetFactor)); + float depthBias = ldexp(mState.polygonOffsetUnits, -(int)(depthbuffer->getDepthSize())); + mDevice->SetRenderState(D3DRS_DEPTHBIAS, *((DWORD*)&depthBias)); + } + } + else + { + mDevice->SetRenderState(D3DRS_SLOPESCALEDEPTHBIAS, 0); + mDevice->SetRenderState(D3DRS_DEPTHBIAS, 0); + } + + mPolygonOffsetStateDirty = false; + } + + if (mSampleStateDirty) + { + if (mState.sampleAlphaToCoverage) + { + FIXME("Sample alpha to coverage is unimplemented."); + } + + mDevice->SetRenderState(D3DRS_MULTISAMPLEANTIALIAS, TRUE); + if (mState.sampleCoverage) + { + unsigned int mask = 0; + if (mState.sampleCoverageValue != 0) + { + float threshold = 0.5f; + + for (int i = 0; i < framebufferObject->getSamples(); ++i) + { + mask <<= 1; + + if ((i + 1) * mState.sampleCoverageValue >= threshold) + { + threshold += 1.0f; + mask |= 1; + } + } + } + + if (mState.sampleCoverageInvert) + { + mask = ~mask; + } + + mDevice->SetRenderState(D3DRS_MULTISAMPLEMASK, mask); + } + else + { + mDevice->SetRenderState(D3DRS_MULTISAMPLEMASK, 0xFFFFFFFF); + } + + mSampleStateDirty = false; + } + + if (mDitherStateDirty) + { + mDevice->SetRenderState(D3DRS_DITHERENABLE, mState.dither ? TRUE : FALSE); + + mDitherStateDirty = false; + } +} + +GLenum Context::applyVertexBuffer(GLint first, GLsizei count, GLsizei instances, GLsizei *repeatDraw) +{ + TranslatedAttribute attributes[MAX_VERTEX_ATTRIBS]; + + GLenum err = mVertexDataManager->prepareVertexData(first, count, attributes, instances); + if (err != GL_NO_ERROR) + { + return err; + } + + ProgramBinary *programBinary = getCurrentProgramBinary(); + return mVertexDeclarationCache.applyDeclaration(mDevice, attributes, programBinary, instances, repeatDraw); +} + +// Applies the indices and element array bindings to the Direct3D 9 device +GLenum Context::applyIndexBuffer(const GLvoid *indices, GLsizei count, GLenum mode, GLenum type, TranslatedIndexData *indexInfo) +{ + GLenum err = mIndexDataManager->prepareIndexData(type, count, mState.elementArrayBuffer.get(), indices, indexInfo); + + if (err == GL_NO_ERROR) + { + if (indexInfo->serial != mAppliedIBSerial) + { + mDevice->SetIndices(indexInfo->indexBuffer); + mAppliedIBSerial = indexInfo->serial; + } + } + + return err; +} + +// Applies the shaders and shader constants to the Direct3D 9 device +void Context::applyShaders() +{ + ProgramBinary *programBinary = getCurrentProgramBinary(); + + if (programBinary->getSerial() != mAppliedProgramBinarySerial) + { + IDirect3DVertexShader9 *vertexShader = programBinary->getVertexShader(); + IDirect3DPixelShader9 *pixelShader = programBinary->getPixelShader(); + + mDevice->SetPixelShader(pixelShader); + mDevice->SetVertexShader(vertexShader); + programBinary->dirtyAllUniforms(); + mAppliedProgramBinarySerial = programBinary->getSerial(); + } + + programBinary->applyUniforms(); +} + +// Applies the textures and sampler states to the Direct3D 9 device +void Context::applyTextures() +{ + applyTextures(SAMPLER_PIXEL); + + if (mSupportsVertexTexture) + { + applyTextures(SAMPLER_VERTEX); + } +} + +// For each Direct3D 9 sampler of either the pixel or vertex stage, +// looks up the corresponding OpenGL texture image unit and texture type, +// and sets the texture and its addressing/filtering state (or NULL when inactive). +void Context::applyTextures(SamplerType type) +{ + ProgramBinary *programBinary = getCurrentProgramBinary(); + + int samplerCount = (type == SAMPLER_PIXEL) ? MAX_TEXTURE_IMAGE_UNITS : MAX_VERTEX_TEXTURE_IMAGE_UNITS_VTF; // Range of Direct3D 9 samplers of given sampler type + unsigned int *appliedTextureSerial = (type == SAMPLER_PIXEL) ? mAppliedTextureSerialPS : mAppliedTextureSerialVS; + int d3dSamplerOffset = (type == SAMPLER_PIXEL) ? 0 : D3DVERTEXTEXTURESAMPLER0; + int samplerRange = programBinary->getUsedSamplerRange(type); + + for (int samplerIndex = 0; samplerIndex < samplerRange; samplerIndex++) + { + int textureUnit = programBinary->getSamplerMapping(type, samplerIndex); // OpenGL texture image unit index + int d3dSampler = samplerIndex + d3dSamplerOffset; + + if (textureUnit != -1) + { + TextureType textureType = programBinary->getSamplerTextureType(type, samplerIndex); + + Texture *texture = getSamplerTexture(textureUnit, textureType); + unsigned int texSerial = texture->getTextureSerial(); + + if (appliedTextureSerial[samplerIndex] != texSerial || texture->hasDirtyParameters() || texture->hasDirtyImages()) + { + IDirect3DBaseTexture9 *d3dTexture = texture->getTexture(); + + if (d3dTexture) + { + if (appliedTextureSerial[samplerIndex] != texSerial || texture->hasDirtyParameters()) + { + GLenum wrapS = texture->getWrapS(); + GLenum wrapT = texture->getWrapT(); + GLenum minFilter = texture->getMinFilter(); + GLenum magFilter = texture->getMagFilter(); + float maxAnisotropy = texture->getMaxAnisotropy(); + + mDevice->SetSamplerState(d3dSampler, D3DSAMP_ADDRESSU, es2dx::ConvertTextureWrap(wrapS)); + mDevice->SetSamplerState(d3dSampler, D3DSAMP_ADDRESSV, es2dx::ConvertTextureWrap(wrapT)); + + mDevice->SetSamplerState(d3dSampler, D3DSAMP_MAGFILTER, es2dx::ConvertMagFilter(magFilter, maxAnisotropy)); + D3DTEXTUREFILTERTYPE d3dMinFilter, d3dMipFilter; + es2dx::ConvertMinFilter(minFilter, &d3dMinFilter, &d3dMipFilter, maxAnisotropy); + mDevice->SetSamplerState(d3dSampler, D3DSAMP_MINFILTER, d3dMinFilter); + mDevice->SetSamplerState(d3dSampler, D3DSAMP_MIPFILTER, d3dMipFilter); + mDevice->SetSamplerState(d3dSampler, D3DSAMP_MAXMIPLEVEL, texture->getLodOffset()); + + if (supportsTextureFilterAnisotropy()) + { + mDevice->SetSamplerState(d3dSampler, D3DSAMP_MAXANISOTROPY, (DWORD)maxAnisotropy); + } + } + + if (appliedTextureSerial[samplerIndex] != texSerial || texture->hasDirtyImages()) + { + mDevice->SetTexture(d3dSampler, d3dTexture); + } + } + else + { + mDevice->SetTexture(d3dSampler, getIncompleteTexture(textureType)->getTexture()); + } + + appliedTextureSerial[samplerIndex] = texSerial; + texture->resetDirty(); + } + } + else + { + if (appliedTextureSerial[samplerIndex] != 0) + { + mDevice->SetTexture(d3dSampler, NULL); + appliedTextureSerial[samplerIndex] = 0; + } + } + } + + for (int samplerIndex = samplerRange; samplerIndex < samplerCount; samplerIndex++) + { + if (appliedTextureSerial[samplerIndex] != 0) + { + mDevice->SetTexture(samplerIndex + d3dSamplerOffset, NULL); + appliedTextureSerial[samplerIndex] = 0; + } + } +} + +void Context::readPixels(GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, GLsizei *bufSize, void* pixels) +{ + Framebuffer *framebuffer = getReadFramebuffer(); + + if (framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE) + { + return error(GL_INVALID_FRAMEBUFFER_OPERATION); + } + + if (getReadFramebufferHandle() != 0 && framebuffer->getSamples() != 0) + { + return error(GL_INVALID_OPERATION); + } + + GLsizei outputPitch = ComputePitch(width, ConvertSizedInternalFormat(format, type), mState.packAlignment); + // sized query sanity check + if (bufSize) + { + int requiredSize = outputPitch * height; + if (requiredSize > *bufSize) + { + return error(GL_INVALID_OPERATION); + } + } + + IDirect3DSurface9 *renderTarget = framebuffer->getRenderTarget(); + if (!renderTarget) + { + return; // Context must be lost, return silently + } + + D3DSURFACE_DESC desc; + renderTarget->GetDesc(&desc); + + if (desc.MultiSampleType != D3DMULTISAMPLE_NONE) + { + UNIMPLEMENTED(); // FIXME: Requires resolve using StretchRect into non-multisampled render target + renderTarget->Release(); + return error(GL_OUT_OF_MEMORY); + } + + HRESULT result; + IDirect3DSurface9 *systemSurface = NULL; + bool directToPixels = !getPackReverseRowOrder() && getPackAlignment() <= 4 && mDisplay->isD3d9ExDevice() && + x == 0 && y == 0 && UINT(width) == desc.Width && UINT(height) == desc.Height && + desc.Format == D3DFMT_A8R8G8B8 && format == GL_BGRA_EXT && type == GL_UNSIGNED_BYTE; + if (directToPixels) + { + // Use the pixels ptr as a shared handle to write directly into client's memory + result = mDevice->CreateOffscreenPlainSurface(desc.Width, desc.Height, desc.Format, + D3DPOOL_SYSTEMMEM, &systemSurface, &pixels); + if (FAILED(result)) + { + // Try again without the shared handle + directToPixels = false; + } + } + + if (!directToPixels) + { + result = mDevice->CreateOffscreenPlainSurface(desc.Width, desc.Height, desc.Format, + D3DPOOL_SYSTEMMEM, &systemSurface, NULL); + if (FAILED(result)) + { + ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY); + renderTarget->Release(); + return error(GL_OUT_OF_MEMORY); + } + } + + result = mDevice->GetRenderTargetData(renderTarget, systemSurface); + renderTarget->Release(); + renderTarget = NULL; + + if (FAILED(result)) + { + systemSurface->Release(); + + // It turns out that D3D will sometimes produce more error + // codes than those documented. + if (checkDeviceLost(result)) + return error(GL_OUT_OF_MEMORY); + else + { + UNREACHABLE(); + return; + } + + } + + if (directToPixels) + { + systemSurface->Release(); + return; + } + + RECT rect; + rect.left = clamp(x, 0L, static_cast<LONG>(desc.Width)); + rect.top = clamp(y, 0L, static_cast<LONG>(desc.Height)); + rect.right = clamp(x + width, 0L, static_cast<LONG>(desc.Width)); + rect.bottom = clamp(y + height, 0L, static_cast<LONG>(desc.Height)); + + D3DLOCKED_RECT lock; + result = systemSurface->LockRect(&lock, &rect, D3DLOCK_READONLY); + + if (FAILED(result)) + { + UNREACHABLE(); + systemSurface->Release(); + + return; // No sensible error to generate + } + + unsigned char *dest = (unsigned char*)pixels; + unsigned short *dest16 = (unsigned short*)pixels; + + unsigned char *source; + int inputPitch; + if (getPackReverseRowOrder()) + { + source = ((unsigned char*)lock.pBits) + lock.Pitch * (rect.bottom - rect.top - 1); + inputPitch = -lock.Pitch; + } + else + { + source = (unsigned char*)lock.pBits; + inputPitch = lock.Pitch; + } + + unsigned int fastPixelSize = 0; + + if (desc.Format == D3DFMT_A8R8G8B8 && + format == GL_BGRA_EXT && + type == GL_UNSIGNED_BYTE) + { + fastPixelSize = 4; + } + else if ((desc.Format == D3DFMT_A4R4G4B4 && + format == GL_BGRA_EXT && + type == GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT) || + (desc.Format == D3DFMT_A1R5G5B5 && + format == GL_BGRA_EXT && + type == GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT)) + { + fastPixelSize = 2; + } + else if (desc.Format == D3DFMT_A16B16G16R16F && + format == GL_RGBA && + type == GL_HALF_FLOAT_OES) + { + fastPixelSize = 8; + } + else if (desc.Format == D3DFMT_A32B32G32R32F && + format == GL_RGBA && + type == GL_FLOAT) + { + fastPixelSize = 16; + } + + for (int j = 0; j < rect.bottom - rect.top; j++) + { + if (fastPixelSize != 0) + { + // Fast path for formats which require no translation: + // D3DFMT_A8R8G8B8 to BGRA/UNSIGNED_BYTE + // D3DFMT_A4R4G4B4 to BGRA/UNSIGNED_SHORT_4_4_4_4_REV_EXT + // D3DFMT_A1R5G5B5 to BGRA/UNSIGNED_SHORT_1_5_5_5_REV_EXT + // D3DFMT_A16B16G16R16F to RGBA/HALF_FLOAT_OES + // D3DFMT_A32B32G32R32F to RGBA/FLOAT + // + // Note that buffers with no alpha go through the slow path below. + memcpy(dest + j * outputPitch, + source + j * inputPitch, + (rect.right - rect.left) * fastPixelSize); + continue; + } + + for (int i = 0; i < rect.right - rect.left; i++) + { + float r; + float g; + float b; + float a; + + switch (desc.Format) + { + case D3DFMT_R5G6B5: + { + unsigned short rgb = *(unsigned short*)(source + 2 * i + j * inputPitch); + + a = 1.0f; + b = (rgb & 0x001F) * (1.0f / 0x001F); + g = (rgb & 0x07E0) * (1.0f / 0x07E0); + r = (rgb & 0xF800) * (1.0f / 0xF800); + } + break; + case D3DFMT_A1R5G5B5: + { + unsigned short argb = *(unsigned short*)(source + 2 * i + j * inputPitch); + + a = (argb & 0x8000) ? 1.0f : 0.0f; + b = (argb & 0x001F) * (1.0f / 0x001F); + g = (argb & 0x03E0) * (1.0f / 0x03E0); + r = (argb & 0x7C00) * (1.0f / 0x7C00); + } + break; + case D3DFMT_A8R8G8B8: + { + unsigned int argb = *(unsigned int*)(source + 4 * i + j * inputPitch); + + a = (argb & 0xFF000000) * (1.0f / 0xFF000000); + b = (argb & 0x000000FF) * (1.0f / 0x000000FF); + g = (argb & 0x0000FF00) * (1.0f / 0x0000FF00); + r = (argb & 0x00FF0000) * (1.0f / 0x00FF0000); + } + break; + case D3DFMT_X8R8G8B8: + { + unsigned int xrgb = *(unsigned int*)(source + 4 * i + j * inputPitch); + + a = 1.0f; + b = (xrgb & 0x000000FF) * (1.0f / 0x000000FF); + g = (xrgb & 0x0000FF00) * (1.0f / 0x0000FF00); + r = (xrgb & 0x00FF0000) * (1.0f / 0x00FF0000); + } + break; + case D3DFMT_A2R10G10B10: + { + unsigned int argb = *(unsigned int*)(source + 4 * i + j * inputPitch); + + a = (argb & 0xC0000000) * (1.0f / 0xC0000000); + b = (argb & 0x000003FF) * (1.0f / 0x000003FF); + g = (argb & 0x000FFC00) * (1.0f / 0x000FFC00); + r = (argb & 0x3FF00000) * (1.0f / 0x3FF00000); + } + break; + case D3DFMT_A32B32G32R32F: + { + // float formats in D3D are stored rgba, rather than the other way round + r = *((float*)(source + 16 * i + j * inputPitch) + 0); + g = *((float*)(source + 16 * i + j * inputPitch) + 1); + b = *((float*)(source + 16 * i + j * inputPitch) + 2); + a = *((float*)(source + 16 * i + j * inputPitch) + 3); + } + break; + case D3DFMT_A16B16G16R16F: + { + // float formats in D3D are stored rgba, rather than the other way round + r = float16ToFloat32(*((unsigned short*)(source + 8 * i + j * inputPitch) + 0)); + g = float16ToFloat32(*((unsigned short*)(source + 8 * i + j * inputPitch) + 1)); + b = float16ToFloat32(*((unsigned short*)(source + 8 * i + j * inputPitch) + 2)); + a = float16ToFloat32(*((unsigned short*)(source + 8 * i + j * inputPitch) + 3)); + } + break; + default: + UNIMPLEMENTED(); // FIXME + UNREACHABLE(); + return; + } + + switch (format) + { + case GL_RGBA: + switch (type) + { + case GL_UNSIGNED_BYTE: + dest[4 * i + j * outputPitch + 0] = (unsigned char)(255 * r + 0.5f); + dest[4 * i + j * outputPitch + 1] = (unsigned char)(255 * g + 0.5f); + dest[4 * i + j * outputPitch + 2] = (unsigned char)(255 * b + 0.5f); + dest[4 * i + j * outputPitch + 3] = (unsigned char)(255 * a + 0.5f); + break; + default: UNREACHABLE(); + } + break; + case GL_BGRA_EXT: + switch (type) + { + case GL_UNSIGNED_BYTE: + dest[4 * i + j * outputPitch + 0] = (unsigned char)(255 * b + 0.5f); + dest[4 * i + j * outputPitch + 1] = (unsigned char)(255 * g + 0.5f); + dest[4 * i + j * outputPitch + 2] = (unsigned char)(255 * r + 0.5f); + dest[4 * i + j * outputPitch + 3] = (unsigned char)(255 * a + 0.5f); + break; + case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: + // According to the desktop GL spec in the "Transfer of Pixel Rectangles" section + // this type is packed as follows: + // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 + // -------------------------------------------------------------------------------- + // | 4th | 3rd | 2nd | 1st component | + // -------------------------------------------------------------------------------- + // in the case of BGRA_EXT, B is the first component, G the second, and so forth. + dest16[i + j * outputPitch / sizeof(unsigned short)] = + ((unsigned short)(15 * a + 0.5f) << 12)| + ((unsigned short)(15 * r + 0.5f) << 8) | + ((unsigned short)(15 * g + 0.5f) << 4) | + ((unsigned short)(15 * b + 0.5f) << 0); + break; + case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: + // According to the desktop GL spec in the "Transfer of Pixel Rectangles" section + // this type is packed as follows: + // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 + // -------------------------------------------------------------------------------- + // | 4th | 3rd | 2nd | 1st component | + // -------------------------------------------------------------------------------- + // in the case of BGRA_EXT, B is the first component, G the second, and so forth. + dest16[i + j * outputPitch / sizeof(unsigned short)] = + ((unsigned short)( a + 0.5f) << 15) | + ((unsigned short)(31 * r + 0.5f) << 10) | + ((unsigned short)(31 * g + 0.5f) << 5) | + ((unsigned short)(31 * b + 0.5f) << 0); + break; + default: UNREACHABLE(); + } + break; + case GL_RGB: + switch (type) + { + case GL_UNSIGNED_SHORT_5_6_5: + dest16[i + j * outputPitch / sizeof(unsigned short)] = + ((unsigned short)(31 * b + 0.5f) << 0) | + ((unsigned short)(63 * g + 0.5f) << 5) | + ((unsigned short)(31 * r + 0.5f) << 11); + break; + case GL_UNSIGNED_BYTE: + dest[3 * i + j * outputPitch + 0] = (unsigned char)(255 * r + 0.5f); + dest[3 * i + j * outputPitch + 1] = (unsigned char)(255 * g + 0.5f); + dest[3 * i + j * outputPitch + 2] = (unsigned char)(255 * b + 0.5f); + break; + default: UNREACHABLE(); + } + break; + default: UNREACHABLE(); + } + } + } + + systemSurface->UnlockRect(); + + systemSurface->Release(); +} + +void Context::clear(GLbitfield mask) +{ + Framebuffer *framebufferObject = getDrawFramebuffer(); + + if (!framebufferObject || framebufferObject->completeness() != GL_FRAMEBUFFER_COMPLETE) + { + return error(GL_INVALID_FRAMEBUFFER_OPERATION); + } + + DWORD flags = 0; + + if (mask & GL_COLOR_BUFFER_BIT) + { + mask &= ~GL_COLOR_BUFFER_BIT; + + if (framebufferObject->getColorbufferType() != GL_NONE) + { + flags |= D3DCLEAR_TARGET; + } + } + + if (mask & GL_DEPTH_BUFFER_BIT) + { + mask &= ~GL_DEPTH_BUFFER_BIT; + if (mState.depthMask && framebufferObject->getDepthbufferType() != GL_NONE) + { + flags |= D3DCLEAR_ZBUFFER; + } + } + + GLuint stencilUnmasked = 0x0; + + if (mask & GL_STENCIL_BUFFER_BIT) + { + mask &= ~GL_STENCIL_BUFFER_BIT; + if (framebufferObject->getStencilbufferType() != GL_NONE) + { + IDirect3DSurface9 *depthStencil = framebufferObject->getStencilbuffer()->getDepthStencil(); + if (!depthStencil) + { + ERR("Depth stencil pointer unexpectedly null."); + return; + } + + D3DSURFACE_DESC desc; + depthStencil->GetDesc(&desc); + depthStencil->Release(); + + unsigned int stencilSize = dx2es::GetStencilSize(desc.Format); + stencilUnmasked = (0x1 << stencilSize) - 1; + + if (stencilUnmasked != 0x0) + { + flags |= D3DCLEAR_STENCIL; + } + } + } + + if (mask != 0) + { + return error(GL_INVALID_VALUE); + } + + if (!applyRenderTarget(true)) // Clips the clear to the scissor rectangle but not the viewport + { + return; + } + + D3DCOLOR color = D3DCOLOR_ARGB(unorm<8>(mState.colorClearValue.alpha), + unorm<8>(mState.colorClearValue.red), + unorm<8>(mState.colorClearValue.green), + unorm<8>(mState.colorClearValue.blue)); + float depth = clamp01(mState.depthClearValue); + int stencil = mState.stencilClearValue & 0x000000FF; + + bool alphaUnmasked = (dx2es::GetAlphaSize(mRenderTargetDesc.Format) == 0) || mState.colorMaskAlpha; + + const bool needMaskedStencilClear = (flags & D3DCLEAR_STENCIL) && + (mState.stencilWritemask & stencilUnmasked) != stencilUnmasked; + const bool needMaskedColorClear = (flags & D3DCLEAR_TARGET) && + !(mState.colorMaskRed && mState.colorMaskGreen && + mState.colorMaskBlue && alphaUnmasked); + + if (needMaskedColorClear || needMaskedStencilClear) + { + // State which is altered in all paths from this point to the clear call is saved. + // State which is altered in only some paths will be flagged dirty in the case that + // that path is taken. + HRESULT hr; + if (mMaskedClearSavedState == NULL) + { + hr = mDevice->BeginStateBlock(); + ASSERT(SUCCEEDED(hr) || hr == D3DERR_OUTOFVIDEOMEMORY || hr == E_OUTOFMEMORY); + + mDevice->SetRenderState(D3DRS_ZWRITEENABLE, FALSE); + mDevice->SetRenderState(D3DRS_ZFUNC, D3DCMP_ALWAYS); + mDevice->SetRenderState(D3DRS_ZENABLE, FALSE); + mDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE); + mDevice->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID); + mDevice->SetRenderState(D3DRS_ALPHATESTENABLE, FALSE); + mDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE); + mDevice->SetRenderState(D3DRS_CLIPPLANEENABLE, 0); + mDevice->SetRenderState(D3DRS_COLORWRITEENABLE, 0); + mDevice->SetRenderState(D3DRS_STENCILENABLE, FALSE); + mDevice->SetPixelShader(NULL); + mDevice->SetVertexShader(NULL); + mDevice->SetFVF(D3DFVF_XYZRHW | D3DFVF_DIFFUSE); + mDevice->SetStreamSource(0, NULL, 0, 0); + mDevice->SetRenderState(D3DRS_SEPARATEALPHABLENDENABLE, TRUE); + mDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1); + mDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TFACTOR); + mDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1); + mDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TFACTOR); + mDevice->SetRenderState(D3DRS_TEXTUREFACTOR, color); + mDevice->SetRenderState(D3DRS_MULTISAMPLEMASK, 0xFFFFFFFF); + + for(int i = 0; i < MAX_VERTEX_ATTRIBS; i++) + { + mDevice->SetStreamSourceFreq(i, 1); + } + + hr = mDevice->EndStateBlock(&mMaskedClearSavedState); + ASSERT(SUCCEEDED(hr) || hr == D3DERR_OUTOFVIDEOMEMORY || hr == E_OUTOFMEMORY); + } + + ASSERT(mMaskedClearSavedState != NULL); + + if (mMaskedClearSavedState != NULL) + { + hr = mMaskedClearSavedState->Capture(); + ASSERT(SUCCEEDED(hr)); + } + + mDevice->SetRenderState(D3DRS_ZWRITEENABLE, FALSE); + mDevice->SetRenderState(D3DRS_ZFUNC, D3DCMP_ALWAYS); + mDevice->SetRenderState(D3DRS_ZENABLE, FALSE); + mDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE); + mDevice->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID); + mDevice->SetRenderState(D3DRS_ALPHATESTENABLE, FALSE); + mDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE); + mDevice->SetRenderState(D3DRS_CLIPPLANEENABLE, 0); + + if (flags & D3DCLEAR_TARGET) + { + mDevice->SetRenderState(D3DRS_COLORWRITEENABLE, es2dx::ConvertColorMask(mState.colorMaskRed, mState.colorMaskGreen, mState.colorMaskBlue, mState.colorMaskAlpha)); + } + else + { + mDevice->SetRenderState(D3DRS_COLORWRITEENABLE, 0); + } + + if (stencilUnmasked != 0x0 && (flags & D3DCLEAR_STENCIL)) + { + mDevice->SetRenderState(D3DRS_STENCILENABLE, TRUE); + mDevice->SetRenderState(D3DRS_TWOSIDEDSTENCILMODE, FALSE); + mDevice->SetRenderState(D3DRS_STENCILFUNC, D3DCMP_ALWAYS); + mDevice->SetRenderState(D3DRS_STENCILREF, stencil); + mDevice->SetRenderState(D3DRS_STENCILWRITEMASK, mState.stencilWritemask); + mDevice->SetRenderState(D3DRS_STENCILFAIL, D3DSTENCILOP_REPLACE); + mDevice->SetRenderState(D3DRS_STENCILZFAIL, D3DSTENCILOP_REPLACE); + mDevice->SetRenderState(D3DRS_STENCILPASS, D3DSTENCILOP_REPLACE); + mStencilStateDirty = true; + } + else + { + mDevice->SetRenderState(D3DRS_STENCILENABLE, FALSE); + } + + mDevice->SetPixelShader(NULL); + mDevice->SetVertexShader(NULL); + mDevice->SetFVF(D3DFVF_XYZRHW); + mDevice->SetRenderState(D3DRS_SEPARATEALPHABLENDENABLE, TRUE); + mDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1); + mDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TFACTOR); + mDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1); + mDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TFACTOR); + mDevice->SetRenderState(D3DRS_TEXTUREFACTOR, color); + mDevice->SetRenderState(D3DRS_MULTISAMPLEMASK, 0xFFFFFFFF); + + for(int i = 0; i < MAX_VERTEX_ATTRIBS; i++) + { + mDevice->SetStreamSourceFreq(i, 1); + } + + float quad[4][4]; // A quadrilateral covering the target, aligned to match the edges + quad[0][0] = -0.5f; + quad[0][1] = mRenderTargetDesc.Height - 0.5f; + quad[0][2] = 0.0f; + quad[0][3] = 1.0f; + + quad[1][0] = mRenderTargetDesc.Width - 0.5f; + quad[1][1] = mRenderTargetDesc.Height - 0.5f; + quad[1][2] = 0.0f; + quad[1][3] = 1.0f; + + quad[2][0] = -0.5f; + quad[2][1] = -0.5f; + quad[2][2] = 0.0f; + quad[2][3] = 1.0f; + + quad[3][0] = mRenderTargetDesc.Width - 0.5f; + quad[3][1] = -0.5f; + quad[3][2] = 0.0f; + quad[3][3] = 1.0f; + + mDisplay->startScene(); + mDevice->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, 2, quad, sizeof(float[4])); + + if (flags & D3DCLEAR_ZBUFFER) + { + mDevice->SetRenderState(D3DRS_ZENABLE, TRUE); + mDevice->SetRenderState(D3DRS_ZWRITEENABLE, TRUE); + mDevice->Clear(0, NULL, D3DCLEAR_ZBUFFER, color, depth, stencil); + } + + if (mMaskedClearSavedState != NULL) + { + mMaskedClearSavedState->Apply(); + } + } + else if (flags) + { + mDevice->Clear(0, NULL, flags, color, depth, stencil); + } +} + +void Context::drawArrays(GLenum mode, GLint first, GLsizei count, GLsizei instances) +{ + if (!mState.currentProgram) + { + return error(GL_INVALID_OPERATION); + } + + D3DPRIMITIVETYPE primitiveType; + int primitiveCount; + + if(!es2dx::ConvertPrimitiveType(mode, count, &primitiveType, &primitiveCount)) + return error(GL_INVALID_ENUM); + + if (primitiveCount <= 0) + { + return; + } + + if (!applyRenderTarget(false)) + { + return; + } + + applyState(mode); + + GLsizei repeatDraw = 1; + GLenum err = applyVertexBuffer(first, count, instances, &repeatDraw); + if (err != GL_NO_ERROR) + { + return error(err); + } + + applyShaders(); + applyTextures(); + + if (!getCurrentProgramBinary()->validateSamplers(NULL)) + { + return error(GL_INVALID_OPERATION); + } + + if (!skipDraw(mode)) + { + mDisplay->startScene(); + + if (mode == GL_LINE_LOOP) + { + drawLineLoop(count, GL_NONE, NULL, 0); + } + else if (instances > 0) + { + StaticIndexBuffer *countingIB = mIndexDataManager->getCountingIndices(count); + if (countingIB) + { + if (mAppliedIBSerial != countingIB->getSerial()) + { + mDevice->SetIndices(countingIB->getBuffer()); + mAppliedIBSerial = countingIB->getSerial(); + } + + for (int i = 0; i < repeatDraw; i++) + { + mDevice->DrawIndexedPrimitive(primitiveType, 0, 0, count, 0, primitiveCount); + } + } + else + { + ERR("Could not create a counting index buffer for glDrawArraysInstanced."); + return error(GL_OUT_OF_MEMORY); + } + } + else // Regular case + { + mDevice->DrawPrimitive(primitiveType, 0, primitiveCount); + } + } +} + +void Context::drawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLsizei instances) +{ + if (!mState.currentProgram) + { + return error(GL_INVALID_OPERATION); + } + + if (!indices && !mState.elementArrayBuffer) + { + return error(GL_INVALID_OPERATION); + } + + D3DPRIMITIVETYPE primitiveType; + int primitiveCount; + + if(!es2dx::ConvertPrimitiveType(mode, count, &primitiveType, &primitiveCount)) + return error(GL_INVALID_ENUM); + + if (primitiveCount <= 0) + { + return; + } + + if (!applyRenderTarget(false)) + { + return; + } + + applyState(mode); + + TranslatedIndexData indexInfo; + GLenum err = applyIndexBuffer(indices, count, mode, type, &indexInfo); + if (err != GL_NO_ERROR) + { + return error(err); + } + + GLsizei vertexCount = indexInfo.maxIndex - indexInfo.minIndex + 1; + GLsizei repeatDraw = 1; + err = applyVertexBuffer(indexInfo.minIndex, vertexCount, instances, &repeatDraw); + if (err != GL_NO_ERROR) + { + return error(err); + } + + applyShaders(); + applyTextures(); + + if (!getCurrentProgramBinary()->validateSamplers(false)) + { + return error(GL_INVALID_OPERATION); + } + + if (!skipDraw(mode)) + { + mDisplay->startScene(); + + if (mode == GL_LINE_LOOP) + { + drawLineLoop(count, type, indices, indexInfo.minIndex); + } + else + { + for (int i = 0; i < repeatDraw; i++) + { + mDevice->DrawIndexedPrimitive(primitiveType, -(INT)indexInfo.minIndex, indexInfo.minIndex, vertexCount, indexInfo.startIndex, primitiveCount); + } + } + } +} + +// Implements glFlush when block is false, glFinish when block is true +void Context::sync(bool block) +{ + mDisplay->sync(block); +} + +void Context::drawLineLoop(GLsizei count, GLenum type, const GLvoid *indices, int minIndex) +{ + // Get the raw indices for an indexed draw + if (type != GL_NONE && mState.elementArrayBuffer.get()) + { + Buffer *indexBuffer = mState.elementArrayBuffer.get(); + intptr_t offset = reinterpret_cast<intptr_t>(indices); + indices = static_cast<const GLubyte*>(indexBuffer->data()) + offset; + } + + UINT startIndex = 0; + bool succeeded = false; + + if (supports32bitIndices()) + { + const int spaceNeeded = (count + 1) * sizeof(unsigned int); + + if (!mLineLoopIB) + { + mLineLoopIB = new StreamingIndexBuffer(mDevice, INITIAL_INDEX_BUFFER_SIZE, D3DFMT_INDEX32); + } + + if (mLineLoopIB) + { + mLineLoopIB->reserveSpace(spaceNeeded, GL_UNSIGNED_INT); + + UINT offset = 0; + unsigned int *data = static_cast<unsigned int*>(mLineLoopIB->map(spaceNeeded, &offset)); + startIndex = offset / 4; + + if (data) + { + switch (type) + { + case GL_NONE: // Non-indexed draw + for (int i = 0; i < count; i++) + { + data[i] = i; + } + data[count] = 0; + break; + case GL_UNSIGNED_BYTE: + for (int i = 0; i < count; i++) + { + data[i] = static_cast<const GLubyte*>(indices)[i]; + } + data[count] = static_cast<const GLubyte*>(indices)[0]; + break; + case GL_UNSIGNED_SHORT: + for (int i = 0; i < count; i++) + { + data[i] = static_cast<const GLushort*>(indices)[i]; + } + data[count] = static_cast<const GLushort*>(indices)[0]; + break; + case GL_UNSIGNED_INT: + for (int i = 0; i < count; i++) + { + data[i] = static_cast<const GLuint*>(indices)[i]; + } + data[count] = static_cast<const GLuint*>(indices)[0]; + break; + default: UNREACHABLE(); + } + + mLineLoopIB->unmap(); + succeeded = true; + } + } + } + else + { + const int spaceNeeded = (count + 1) * sizeof(unsigned short); + + if (!mLineLoopIB) + { + mLineLoopIB = new StreamingIndexBuffer(mDevice, INITIAL_INDEX_BUFFER_SIZE, D3DFMT_INDEX16); + } + + if (mLineLoopIB) + { + mLineLoopIB->reserveSpace(spaceNeeded, GL_UNSIGNED_SHORT); + + UINT offset = 0; + unsigned short *data = static_cast<unsigned short*>(mLineLoopIB->map(spaceNeeded, &offset)); + startIndex = offset / 2; + + if (data) + { + switch (type) + { + case GL_NONE: // Non-indexed draw + for (int i = 0; i < count; i++) + { + data[i] = i; + } + data[count] = 0; + break; + case GL_UNSIGNED_BYTE: + for (int i = 0; i < count; i++) + { + data[i] = static_cast<const GLubyte*>(indices)[i]; + } + data[count] = static_cast<const GLubyte*>(indices)[0]; + break; + case GL_UNSIGNED_SHORT: + for (int i = 0; i < count; i++) + { + data[i] = static_cast<const GLushort*>(indices)[i]; + } + data[count] = static_cast<const GLushort*>(indices)[0]; + break; + case GL_UNSIGNED_INT: + for (int i = 0; i < count; i++) + { + data[i] = static_cast<const GLuint*>(indices)[i]; + } + data[count] = static_cast<const GLuint*>(indices)[0]; + break; + default: UNREACHABLE(); + } + + mLineLoopIB->unmap(); + succeeded = true; + } + } + } + + if (succeeded) + { + if (mAppliedIBSerial != mLineLoopIB->getSerial()) + { + mDevice->SetIndices(mLineLoopIB->getBuffer()); + mAppliedIBSerial = mLineLoopIB->getSerial(); + } + + mDevice->DrawIndexedPrimitive(D3DPT_LINESTRIP, -minIndex, minIndex, count, startIndex, count); + } + else + { + ERR("Could not create a looping index buffer for GL_LINE_LOOP."); + return error(GL_OUT_OF_MEMORY); + } +} + +void Context::recordInvalidEnum() +{ + mInvalidEnum = true; +} + +void Context::recordInvalidValue() +{ + mInvalidValue = true; +} + +void Context::recordInvalidOperation() +{ + mInvalidOperation = true; +} + +void Context::recordOutOfMemory() +{ + mOutOfMemory = true; +} + +void Context::recordInvalidFramebufferOperation() +{ + mInvalidFramebufferOperation = true; +} + +// Get one of the recorded errors and clear its flag, if any. +// [OpenGL ES 2.0.24] section 2.5 page 13. +GLenum Context::getError() +{ + if (mInvalidEnum) + { + mInvalidEnum = false; + + return GL_INVALID_ENUM; + } + + if (mInvalidValue) + { + mInvalidValue = false; + + return GL_INVALID_VALUE; + } + + if (mInvalidOperation) + { + mInvalidOperation = false; + + return GL_INVALID_OPERATION; + } + + if (mOutOfMemory) + { + mOutOfMemory = false; + + return GL_OUT_OF_MEMORY; + } + + if (mInvalidFramebufferOperation) + { + mInvalidFramebufferOperation = false; + + return GL_INVALID_FRAMEBUFFER_OPERATION; + } + + return GL_NO_ERROR; +} + +GLenum Context::getResetStatus() +{ + if (mResetStatus == GL_NO_ERROR) + { + bool lost = mDisplay->testDeviceLost(); + + if (lost) + { + mDisplay->notifyDeviceLost(); // Sets mResetStatus + } + } + + GLenum status = mResetStatus; + + if (mResetStatus != GL_NO_ERROR) + { + if (mDisplay->testDeviceResettable()) + { + mResetStatus = GL_NO_ERROR; + } + } + + return status; +} + +bool Context::isResetNotificationEnabled() +{ + return (mResetStrategy == GL_LOSE_CONTEXT_ON_RESET_EXT); +} + +bool Context::supportsShaderModel3() const +{ + return mSupportsShaderModel3; +} + +float Context::getMaximumPointSize() const +{ + return mSupportsShaderModel3 ? mMaximumPointSize : ALIASED_POINT_SIZE_RANGE_MAX_SM2; +} + +int Context::getMaximumVaryingVectors() const +{ + return mSupportsShaderModel3 ? MAX_VARYING_VECTORS_SM3 : MAX_VARYING_VECTORS_SM2; +} + +unsigned int Context::getMaximumVertexTextureImageUnits() const +{ + return mSupportsVertexTexture ? MAX_VERTEX_TEXTURE_IMAGE_UNITS_VTF : 0; +} + +unsigned int Context::getMaximumCombinedTextureImageUnits() const +{ + return MAX_TEXTURE_IMAGE_UNITS + getMaximumVertexTextureImageUnits(); +} + +int Context::getMaximumFragmentUniformVectors() const +{ + return mSupportsShaderModel3 ? MAX_FRAGMENT_UNIFORM_VECTORS_SM3 : MAX_FRAGMENT_UNIFORM_VECTORS_SM2; +} + +int Context::getMaxSupportedSamples() const +{ + return mMaxSupportedSamples; +} + +int Context::getNearestSupportedSamples(D3DFORMAT format, int requested) const +{ + if (requested == 0) + { + return requested; + } + + std::map<D3DFORMAT, bool *>::const_iterator itr = mMultiSampleSupport.find(format); + if (itr == mMultiSampleSupport.end()) + { + return -1; + } + + for (int i = requested; i <= D3DMULTISAMPLE_16_SAMPLES; ++i) + { + if (itr->second[i] && i != D3DMULTISAMPLE_NONMASKABLE) + { + return i; + } + } + + return -1; +} + +bool Context::supportsEventQueries() const +{ + return mSupportsEventQueries; +} + +bool Context::supportsOcclusionQueries() const +{ + return mSupportsOcclusionQueries; +} + +bool Context::supportsDXT1Textures() const +{ + return mSupportsDXT1Textures; +} + +bool Context::supportsDXT3Textures() const +{ + return mSupportsDXT3Textures; +} + +bool Context::supportsDXT5Textures() const +{ + return mSupportsDXT5Textures; +} + +bool Context::supportsFloat32Textures() const +{ + return mSupportsFloat32Textures; +} + +bool Context::supportsFloat32LinearFilter() const +{ + return mSupportsFloat32LinearFilter; +} + +bool Context::supportsFloat32RenderableTextures() const +{ + return mSupportsFloat32RenderableTextures; +} + +bool Context::supportsFloat16Textures() const +{ + return mSupportsFloat16Textures; +} + +bool Context::supportsFloat16LinearFilter() const +{ + return mSupportsFloat16LinearFilter; +} + +bool Context::supportsFloat16RenderableTextures() const +{ + return mSupportsFloat16RenderableTextures; +} + +int Context::getMaximumRenderbufferDimension() const +{ + return mMaxRenderbufferDimension; +} + +int Context::getMaximumTextureDimension() const +{ + return mMaxTextureDimension; +} + +int Context::getMaximumCubeTextureDimension() const +{ + return mMaxCubeTextureDimension; +} + +int Context::getMaximumTextureLevel() const +{ + return mMaxTextureLevel; +} + +bool Context::supportsLuminanceTextures() const +{ + return mSupportsLuminanceTextures; +} + +bool Context::supportsLuminanceAlphaTextures() const +{ + return mSupportsLuminanceAlphaTextures; +} + +bool Context::supportsDepthTextures() const +{ + return mSupportsDepthTextures; +} + +bool Context::supports32bitIndices() const +{ + return mSupports32bitIndices; +} + +bool Context::supportsNonPower2Texture() const +{ + return mSupportsNonPower2Texture; +} + +bool Context::supportsInstancing() const +{ + return mSupportsInstancing; +} + +bool Context::supportsTextureFilterAnisotropy() const +{ + return mSupportsTextureFilterAnisotropy; +} + +float Context::getTextureMaxAnisotropy() const +{ + return mMaxTextureAnisotropy; +} + +bool Context::getCurrentReadFormatType(GLenum *format, GLenum *type) +{ + Framebuffer *framebuffer = getReadFramebuffer(); + if (!framebuffer || framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE) + { + return error(GL_INVALID_OPERATION, false); + } + + Renderbuffer *renderbuffer = framebuffer->getColorbuffer(); + if (!renderbuffer) + { + return error(GL_INVALID_OPERATION, false); + } + + if(!dx2es::ConvertReadBufferFormat(renderbuffer->getD3DFormat(), format, type)) + { + ASSERT(false); + return false; + } + + return true; +} + +void Context::detachBuffer(GLuint buffer) +{ + // [OpenGL ES 2.0.24] section 2.9 page 22: + // If a buffer object is deleted while it is bound, all bindings to that object in the current context + // (i.e. in the thread that called Delete-Buffers) are reset to zero. + + if (mState.arrayBuffer.id() == buffer) + { + mState.arrayBuffer.set(NULL); + } + + if (mState.elementArrayBuffer.id() == buffer) + { + mState.elementArrayBuffer.set(NULL); + } + + for (int attribute = 0; attribute < MAX_VERTEX_ATTRIBS; attribute++) + { + if (mState.vertexAttribute[attribute].mBoundBuffer.id() == buffer) + { + mState.vertexAttribute[attribute].mBoundBuffer.set(NULL); + } + } +} + +void Context::detachTexture(GLuint texture) +{ + // [OpenGL ES 2.0.24] section 3.8 page 84: + // If a texture object is deleted, it is as if all texture units which are bound to that texture object are + // rebound to texture object zero + + for (int type = 0; type < TEXTURE_TYPE_COUNT; type++) + { + for (int sampler = 0; sampler < MAX_COMBINED_TEXTURE_IMAGE_UNITS_VTF; sampler++) + { + if (mState.samplerTexture[type][sampler].id() == texture) + { + mState.samplerTexture[type][sampler].set(NULL); + } + } + } + + // [OpenGL ES 2.0.24] section 4.4 page 112: + // If a texture object is deleted while its image is attached to the currently bound framebuffer, then it is + // as if FramebufferTexture2D had been called, with a texture of 0, for each attachment point to which this + // image was attached in the currently bound framebuffer. + + Framebuffer *readFramebuffer = getReadFramebuffer(); + Framebuffer *drawFramebuffer = getDrawFramebuffer(); + + if (readFramebuffer) + { + readFramebuffer->detachTexture(texture); + } + + if (drawFramebuffer && drawFramebuffer != readFramebuffer) + { + drawFramebuffer->detachTexture(texture); + } +} + +void Context::detachFramebuffer(GLuint framebuffer) +{ + // [OpenGL ES 2.0.24] section 4.4 page 107: + // If a framebuffer that is currently bound to the target FRAMEBUFFER is deleted, it is as though + // BindFramebuffer had been executed with the target of FRAMEBUFFER and framebuffer of zero. + + if (mState.readFramebuffer == framebuffer) + { + bindReadFramebuffer(0); + } + + if (mState.drawFramebuffer == framebuffer) + { + bindDrawFramebuffer(0); + } +} + +void Context::detachRenderbuffer(GLuint renderbuffer) +{ + // [OpenGL ES 2.0.24] section 4.4 page 109: + // If a renderbuffer that is currently bound to RENDERBUFFER is deleted, it is as though BindRenderbuffer + // had been executed with the target RENDERBUFFER and name of zero. + + if (mState.renderbuffer.id() == renderbuffer) + { + bindRenderbuffer(0); + } + + // [OpenGL ES 2.0.24] section 4.4 page 111: + // If a renderbuffer object is deleted while its image is attached to the currently bound framebuffer, + // then it is as if FramebufferRenderbuffer had been called, with a renderbuffer of 0, for each attachment + // point to which this image was attached in the currently bound framebuffer. + + Framebuffer *readFramebuffer = getReadFramebuffer(); + Framebuffer *drawFramebuffer = getDrawFramebuffer(); + + if (readFramebuffer) + { + readFramebuffer->detachRenderbuffer(renderbuffer); + } + + if (drawFramebuffer && drawFramebuffer != readFramebuffer) + { + drawFramebuffer->detachRenderbuffer(renderbuffer); + } +} + +Texture *Context::getIncompleteTexture(TextureType type) +{ + Texture *t = mIncompleteTextures[type].get(); + + if (t == NULL) + { + static const GLubyte color[] = { 0, 0, 0, 255 }; + + switch (type) + { + default: + UNREACHABLE(); + // default falls through to TEXTURE_2D + + case TEXTURE_2D: + { + Texture2D *incomplete2d = new Texture2D(Texture::INCOMPLETE_TEXTURE_ID); + incomplete2d->setImage(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color); + t = incomplete2d; + } + break; + + case TEXTURE_CUBE: + { + TextureCubeMap *incompleteCube = new TextureCubeMap(Texture::INCOMPLETE_TEXTURE_ID); + + incompleteCube->setImagePosX(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color); + incompleteCube->setImageNegX(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color); + incompleteCube->setImagePosY(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color); + incompleteCube->setImageNegY(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color); + incompleteCube->setImagePosZ(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color); + incompleteCube->setImageNegZ(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color); + + t = incompleteCube; + } + break; + } + + mIncompleteTextures[type].set(t); + } + + return t; +} + +bool Context::skipDraw(GLenum drawMode) +{ + if (drawMode == GL_POINTS) + { + // ProgramBinary assumes non-point rendering if gl_PointSize isn't written, + // which affects varying interpolation. Since the value of gl_PointSize is + // undefined when not written, just skip drawing to avoid unexpected results. + if (!getCurrentProgramBinary()->usesPointSize()) + { + // This is stictly speaking not an error, but developers should be + // notified of risking undefined behavior. + ERR("Point rendering without writing to gl_PointSize."); + + return true; + } + } + else if (isTriangleMode(drawMode)) + { + if (mState.cullFace && mState.cullMode == GL_FRONT_AND_BACK) + { + return true; + } + } + + return false; +} + +bool Context::isTriangleMode(GLenum drawMode) +{ + switch (drawMode) + { + case GL_TRIANGLES: + case GL_TRIANGLE_FAN: + case GL_TRIANGLE_STRIP: + return true; + case GL_POINTS: + case GL_LINES: + case GL_LINE_LOOP: + case GL_LINE_STRIP: + return false; + default: UNREACHABLE(); + } + + return false; +} + +void Context::setVertexAttrib(GLuint index, const GLfloat *values) +{ + ASSERT(index < gl::MAX_VERTEX_ATTRIBS); + + mState.vertexAttribute[index].mCurrentValue[0] = values[0]; + mState.vertexAttribute[index].mCurrentValue[1] = values[1]; + mState.vertexAttribute[index].mCurrentValue[2] = values[2]; + mState.vertexAttribute[index].mCurrentValue[3] = values[3]; + + mVertexDataManager->dirtyCurrentValue(index); +} + +void Context::setVertexAttribDivisor(GLuint index, GLuint divisor) +{ + ASSERT(index < gl::MAX_VERTEX_ATTRIBS); + + mState.vertexAttribute[index].mDivisor = divisor; +} + +// keep list sorted in following order +// OES extensions +// EXT extensions +// Vendor extensions +void Context::initExtensionString() +{ + mExtensionString = ""; + + // OES extensions + if (supports32bitIndices()) + { + mExtensionString += "GL_OES_element_index_uint "; + } + + mExtensionString += "GL_OES_packed_depth_stencil "; + mExtensionString += "GL_OES_get_program_binary "; + mExtensionString += "GL_OES_rgb8_rgba8 "; + mExtensionString += "GL_OES_standard_derivatives "; + + if (supportsFloat16Textures()) + { + mExtensionString += "GL_OES_texture_half_float "; + } + if (supportsFloat16LinearFilter()) + { + mExtensionString += "GL_OES_texture_half_float_linear "; + } + if (supportsFloat32Textures()) + { + mExtensionString += "GL_OES_texture_float "; + } + if (supportsFloat32LinearFilter()) + { + mExtensionString += "GL_OES_texture_float_linear "; + } + + if (supportsNonPower2Texture()) + { + mExtensionString += "GL_OES_texture_npot "; + } + + // Multi-vendor (EXT) extensions + if (supportsOcclusionQueries()) + { + mExtensionString += "GL_EXT_occlusion_query_boolean "; + } + + mExtensionString += "GL_EXT_read_format_bgra "; + mExtensionString += "GL_EXT_robustness "; + + if (supportsDXT1Textures()) + { + mExtensionString += "GL_EXT_texture_compression_dxt1 "; + } + + if (supportsTextureFilterAnisotropy()) + { + mExtensionString += "GL_EXT_texture_filter_anisotropic "; + } + + mExtensionString += "GL_EXT_texture_format_BGRA8888 "; + mExtensionString += "GL_EXT_texture_storage "; + + // ANGLE-specific extensions + if (supportsDepthTextures()) + { + mExtensionString += "GL_ANGLE_depth_texture "; + } + + mExtensionString += "GL_ANGLE_framebuffer_blit "; + if (getMaxSupportedSamples() != 0) + { + mExtensionString += "GL_ANGLE_framebuffer_multisample "; + } + + if (supportsInstancing()) + { + mExtensionString += "GL_ANGLE_instanced_arrays "; + } + + mExtensionString += "GL_ANGLE_pack_reverse_row_order "; + + if (supportsDXT3Textures()) + { + mExtensionString += "GL_ANGLE_texture_compression_dxt3 "; + } + if (supportsDXT5Textures()) + { + mExtensionString += "GL_ANGLE_texture_compression_dxt5 "; + } + + mExtensionString += "GL_ANGLE_texture_usage "; + mExtensionString += "GL_ANGLE_translated_shader_source "; + + // Other vendor-specific extensions + if (supportsEventQueries()) + { + mExtensionString += "GL_NV_fence "; + } + + std::string::size_type end = mExtensionString.find_last_not_of(' '); + if (end != std::string::npos) + { + mExtensionString.resize(end+1); + } +} + +const char *Context::getExtensionString() const +{ + return mExtensionString.c_str(); +} + +void Context::initRendererString() +{ + D3DADAPTER_IDENTIFIER9 *identifier = mDisplay->getAdapterIdentifier(); + + mRendererString = "ANGLE ("; + mRendererString += identifier->Description; + mRendererString += ")"; +} + +const char *Context::getRendererString() const +{ + return mRendererString.c_str(); +} + +void Context::blitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask) +{ + Framebuffer *readFramebuffer = getReadFramebuffer(); + Framebuffer *drawFramebuffer = getDrawFramebuffer(); + + if (!readFramebuffer || readFramebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE || + !drawFramebuffer || drawFramebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE) + { + return error(GL_INVALID_FRAMEBUFFER_OPERATION); + } + + if (drawFramebuffer->getSamples() != 0) + { + return error(GL_INVALID_OPERATION); + } + + int readBufferWidth = readFramebuffer->getColorbuffer()->getWidth(); + int readBufferHeight = readFramebuffer->getColorbuffer()->getHeight(); + int drawBufferWidth = drawFramebuffer->getColorbuffer()->getWidth(); + int drawBufferHeight = drawFramebuffer->getColorbuffer()->getHeight(); + + RECT sourceRect; + RECT destRect; + + if (srcX0 < srcX1) + { + sourceRect.left = srcX0; + sourceRect.right = srcX1; + destRect.left = dstX0; + destRect.right = dstX1; + } + else + { + sourceRect.left = srcX1; + destRect.left = dstX1; + sourceRect.right = srcX0; + destRect.right = dstX0; + } + + if (srcY0 < srcY1) + { + sourceRect.bottom = srcY1; + destRect.bottom = dstY1; + sourceRect.top = srcY0; + destRect.top = dstY0; + } + else + { + sourceRect.bottom = srcY0; + destRect.bottom = dstY0; + sourceRect.top = srcY1; + destRect.top = dstY1; + } + + RECT sourceScissoredRect = sourceRect; + RECT destScissoredRect = destRect; + + if (mState.scissorTest) + { + // Only write to parts of the destination framebuffer which pass the scissor test + // Please note: the destRect is now in D3D-style coordinates, so the *top* of the + // rect will be checked against scissorY, rather than the bottom. + if (destRect.left < mState.scissorX) + { + int xDiff = mState.scissorX - destRect.left; + destScissoredRect.left = mState.scissorX; + sourceScissoredRect.left += xDiff; + } + + if (destRect.right > mState.scissorX + mState.scissorWidth) + { + int xDiff = destRect.right - (mState.scissorX + mState.scissorWidth); + destScissoredRect.right = mState.scissorX + mState.scissorWidth; + sourceScissoredRect.right -= xDiff; + } + + if (destRect.top < mState.scissorY) + { + int yDiff = mState.scissorY - destRect.top; + destScissoredRect.top = mState.scissorY; + sourceScissoredRect.top += yDiff; + } + + if (destRect.bottom > mState.scissorY + mState.scissorHeight) + { + int yDiff = destRect.bottom - (mState.scissorY + mState.scissorHeight); + destScissoredRect.bottom = mState.scissorY + mState.scissorHeight; + sourceScissoredRect.bottom -= yDiff; + } + } + + bool blitRenderTarget = false; + bool blitDepthStencil = false; + + RECT sourceTrimmedRect = sourceScissoredRect; + RECT destTrimmedRect = destScissoredRect; + + // The source & destination rectangles also may need to be trimmed if they fall out of the bounds of + // the actual draw and read surfaces. + if (sourceTrimmedRect.left < 0) + { + int xDiff = 0 - sourceTrimmedRect.left; + sourceTrimmedRect.left = 0; + destTrimmedRect.left += xDiff; + } + + if (sourceTrimmedRect.right > readBufferWidth) + { + int xDiff = sourceTrimmedRect.right - readBufferWidth; + sourceTrimmedRect.right = readBufferWidth; + destTrimmedRect.right -= xDiff; + } + + if (sourceTrimmedRect.top < 0) + { + int yDiff = 0 - sourceTrimmedRect.top; + sourceTrimmedRect.top = 0; + destTrimmedRect.top += yDiff; + } + + if (sourceTrimmedRect.bottom > readBufferHeight) + { + int yDiff = sourceTrimmedRect.bottom - readBufferHeight; + sourceTrimmedRect.bottom = readBufferHeight; + destTrimmedRect.bottom -= yDiff; + } + + if (destTrimmedRect.left < 0) + { + int xDiff = 0 - destTrimmedRect.left; + destTrimmedRect.left = 0; + sourceTrimmedRect.left += xDiff; + } + + if (destTrimmedRect.right > drawBufferWidth) + { + int xDiff = destTrimmedRect.right - drawBufferWidth; + destTrimmedRect.right = drawBufferWidth; + sourceTrimmedRect.right -= xDiff; + } + + if (destTrimmedRect.top < 0) + { + int yDiff = 0 - destTrimmedRect.top; + destTrimmedRect.top = 0; + sourceTrimmedRect.top += yDiff; + } + + if (destTrimmedRect.bottom > drawBufferHeight) + { + int yDiff = destTrimmedRect.bottom - drawBufferHeight; + destTrimmedRect.bottom = drawBufferHeight; + sourceTrimmedRect.bottom -= yDiff; + } + + bool partialBufferCopy = false; + if (sourceTrimmedRect.bottom - sourceTrimmedRect.top < readBufferHeight || + sourceTrimmedRect.right - sourceTrimmedRect.left < readBufferWidth || + destTrimmedRect.bottom - destTrimmedRect.top < drawBufferHeight || + destTrimmedRect.right - destTrimmedRect.left < drawBufferWidth || + sourceTrimmedRect.top != 0 || destTrimmedRect.top != 0 || sourceTrimmedRect.left != 0 || destTrimmedRect.left != 0) + { + partialBufferCopy = true; + } + + if (mask & GL_COLOR_BUFFER_BIT) + { + const bool validReadType = readFramebuffer->getColorbufferType() == GL_TEXTURE_2D || + readFramebuffer->getColorbufferType() == GL_RENDERBUFFER; + const bool validDrawType = drawFramebuffer->getColorbufferType() == GL_TEXTURE_2D || + drawFramebuffer->getColorbufferType() == GL_RENDERBUFFER; + if (!validReadType || !validDrawType || + readFramebuffer->getColorbuffer()->getD3DFormat() != drawFramebuffer->getColorbuffer()->getD3DFormat()) + { + ERR("Color buffer format conversion in BlitFramebufferANGLE not supported by this implementation"); + return error(GL_INVALID_OPERATION); + } + + if (partialBufferCopy && readFramebuffer->getSamples() != 0) + { + return error(GL_INVALID_OPERATION); + } + + blitRenderTarget = true; + + } + + if (mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) + { + Renderbuffer *readDSBuffer = NULL; + Renderbuffer *drawDSBuffer = NULL; + + // We support OES_packed_depth_stencil, and do not support a separately attached depth and stencil buffer, so if we have + // both a depth and stencil buffer, it will be the same buffer. + + if (mask & GL_DEPTH_BUFFER_BIT) + { + if (readFramebuffer->getDepthbuffer() && drawFramebuffer->getDepthbuffer()) + { + if (readFramebuffer->getDepthbufferType() != drawFramebuffer->getDepthbufferType() || + readFramebuffer->getDepthbuffer()->getD3DFormat() != drawFramebuffer->getDepthbuffer()->getD3DFormat()) + { + return error(GL_INVALID_OPERATION); + } + + blitDepthStencil = true; + readDSBuffer = readFramebuffer->getDepthbuffer(); + drawDSBuffer = drawFramebuffer->getDepthbuffer(); + } + } + + if (mask & GL_STENCIL_BUFFER_BIT) + { + if (readFramebuffer->getStencilbuffer() && drawFramebuffer->getStencilbuffer()) + { + if (readFramebuffer->getStencilbufferType() != drawFramebuffer->getStencilbufferType() || + readFramebuffer->getStencilbuffer()->getD3DFormat() != drawFramebuffer->getStencilbuffer()->getD3DFormat()) + { + return error(GL_INVALID_OPERATION); + } + + blitDepthStencil = true; + readDSBuffer = readFramebuffer->getStencilbuffer(); + drawDSBuffer = drawFramebuffer->getStencilbuffer(); + } + } + + if (partialBufferCopy) + { + ERR("Only whole-buffer depth and stencil blits are supported by this implementation."); + return error(GL_INVALID_OPERATION); // only whole-buffer copies are permitted + } + + if ((drawDSBuffer && drawDSBuffer->getSamples() != 0) || + (readDSBuffer && readDSBuffer->getSamples() != 0)) + { + return error(GL_INVALID_OPERATION); + } + } + + if (blitRenderTarget || blitDepthStencil) + { + mDisplay->endScene(); + + if (blitRenderTarget) + { + IDirect3DSurface9* readRenderTarget = readFramebuffer->getRenderTarget(); + IDirect3DSurface9* drawRenderTarget = drawFramebuffer->getRenderTarget(); + + HRESULT result = mDevice->StretchRect(readRenderTarget, &sourceTrimmedRect, + drawRenderTarget, &destTrimmedRect, D3DTEXF_NONE); + + readRenderTarget->Release(); + drawRenderTarget->Release(); + + if (FAILED(result)) + { + ERR("BlitFramebufferANGLE failed: StretchRect returned %x.", result); + return; + } + } + + if (blitDepthStencil) + { + IDirect3DSurface9* readDepthStencil = readFramebuffer->getDepthStencil(); + IDirect3DSurface9* drawDepthStencil = drawFramebuffer->getDepthStencil(); + + HRESULT result = mDevice->StretchRect(readDepthStencil, NULL, drawDepthStencil, NULL, D3DTEXF_NONE); + + readDepthStencil->Release(); + drawDepthStencil->Release(); + + if (FAILED(result)) + { + ERR("BlitFramebufferANGLE failed: StretchRect returned %x.", result); + return; + } + } + } +} + +VertexDeclarationCache::VertexDeclarationCache() : mMaxLru(0) +{ + for (int i = 0; i < NUM_VERTEX_DECL_CACHE_ENTRIES; i++) + { + mVertexDeclCache[i].vertexDeclaration = NULL; + mVertexDeclCache[i].lruCount = 0; + } +} + +VertexDeclarationCache::~VertexDeclarationCache() +{ + for (int i = 0; i < NUM_VERTEX_DECL_CACHE_ENTRIES; i++) + { + if (mVertexDeclCache[i].vertexDeclaration) + { + mVertexDeclCache[i].vertexDeclaration->Release(); + } + } +} + +GLenum VertexDeclarationCache::applyDeclaration(IDirect3DDevice9 *device, TranslatedAttribute attributes[], ProgramBinary *programBinary, GLsizei instances, GLsizei *repeatDraw) +{ + *repeatDraw = 1; + + int indexedAttribute = MAX_VERTEX_ATTRIBS; + int instancedAttribute = MAX_VERTEX_ATTRIBS; + + if (instances > 0) + { + // Find an indexed attribute to be mapped to D3D stream 0 + for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++) + { + if (attributes[i].active) + { + if (indexedAttribute == MAX_VERTEX_ATTRIBS) + { + if (attributes[i].divisor == 0) + { + indexedAttribute = i; + } + } + else if (instancedAttribute == MAX_VERTEX_ATTRIBS) + { + if (attributes[i].divisor != 0) + { + instancedAttribute = i; + } + } + else break; // Found both an indexed and instanced attribute + } + } + + if (indexedAttribute == MAX_VERTEX_ATTRIBS) + { + return GL_INVALID_OPERATION; + } + } + + D3DVERTEXELEMENT9 elements[MAX_VERTEX_ATTRIBS + 1]; + D3DVERTEXELEMENT9 *element = &elements[0]; + + for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++) + { + if (attributes[i].active) + { + int stream = i; + + if (instances > 0) + { + // Due to a bug on ATI cards we can't enable instancing when none of the attributes are instanced. + if (instancedAttribute == MAX_VERTEX_ATTRIBS) + { + *repeatDraw = instances; + } + else + { + if (i == indexedAttribute) + { + stream = 0; + } + else if (i == 0) + { + stream = indexedAttribute; + } + + UINT frequency = 1; + + if (attributes[i].divisor == 0) + { + frequency = D3DSTREAMSOURCE_INDEXEDDATA | instances; + } + else + { + frequency = D3DSTREAMSOURCE_INSTANCEDATA | attributes[i].divisor; + } + + device->SetStreamSourceFreq(stream, frequency); + mInstancingEnabled = true; + } + } + + if (mAppliedVBs[stream].serial != attributes[i].serial || + mAppliedVBs[stream].stride != attributes[i].stride || + mAppliedVBs[stream].offset != attributes[i].offset) + { + device->SetStreamSource(stream, attributes[i].vertexBuffer, attributes[i].offset, attributes[i].stride); + mAppliedVBs[stream].serial = attributes[i].serial; + mAppliedVBs[stream].stride = attributes[i].stride; + mAppliedVBs[stream].offset = attributes[i].offset; + } + + element->Stream = stream; + element->Offset = 0; + element->Type = attributes[i].type; + element->Method = D3DDECLMETHOD_DEFAULT; + element->Usage = D3DDECLUSAGE_TEXCOORD; + element->UsageIndex = programBinary->getSemanticIndex(i); + element++; + } + } + + if (instances == 0 || instancedAttribute == MAX_VERTEX_ATTRIBS) + { + if (mInstancingEnabled) + { + for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++) + { + device->SetStreamSourceFreq(i, 1); + } + + mInstancingEnabled = false; + } + } + + static const D3DVERTEXELEMENT9 end = D3DDECL_END(); + *(element++) = end; + + for (int i = 0; i < NUM_VERTEX_DECL_CACHE_ENTRIES; i++) + { + VertexDeclCacheEntry *entry = &mVertexDeclCache[i]; + if (memcmp(entry->cachedElements, elements, (element - elements) * sizeof(D3DVERTEXELEMENT9)) == 0 && entry->vertexDeclaration) + { + entry->lruCount = ++mMaxLru; + if(entry->vertexDeclaration != mLastSetVDecl) + { + device->SetVertexDeclaration(entry->vertexDeclaration); + mLastSetVDecl = entry->vertexDeclaration; + } + + return GL_NO_ERROR; + } + } + + VertexDeclCacheEntry *lastCache = mVertexDeclCache; + + for (int i = 0; i < NUM_VERTEX_DECL_CACHE_ENTRIES; i++) + { + if (mVertexDeclCache[i].lruCount < lastCache->lruCount) + { + lastCache = &mVertexDeclCache[i]; + } + } + + if (lastCache->vertexDeclaration != NULL) + { + lastCache->vertexDeclaration->Release(); + lastCache->vertexDeclaration = NULL; + // mLastSetVDecl is set to the replacement, so we don't have to worry + // about it. + } + + memcpy(lastCache->cachedElements, elements, (element - elements) * sizeof(D3DVERTEXELEMENT9)); + device->CreateVertexDeclaration(elements, &lastCache->vertexDeclaration); + device->SetVertexDeclaration(lastCache->vertexDeclaration); + mLastSetVDecl = lastCache->vertexDeclaration; + lastCache->lruCount = ++mMaxLru; + + return GL_NO_ERROR; +} + +void VertexDeclarationCache::markStateDirty() +{ + for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++) + { + mAppliedVBs[i].serial = 0; + } + + mLastSetVDecl = NULL; + mInstancingEnabled = true; // Forces it to be disabled when not used +} + +} + +extern "C" +{ +gl::Context *glCreateContext(const egl::Config *config, const gl::Context *shareContext, bool notifyResets, bool robustAccess) +{ + return new gl::Context(config, shareContext, notifyResets, robustAccess); +} + +void glDestroyContext(gl::Context *context) +{ + delete context; + + if (context == gl::getContext()) + { + gl::makeCurrent(NULL, NULL, NULL); + } +} + +void glMakeCurrent(gl::Context *context, egl::Display *display, egl::Surface *surface) +{ + gl::makeCurrent(context, display, surface); +} + +gl::Context *glGetCurrentContext() +{ + return gl::getContext(); +} +} |