1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/angle/src/libGLESv2/Context.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,2972 @@
1.4 +#include "precompiled.h"
1.5 +//
1.6 +// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
1.7 +// Use of this source code is governed by a BSD-style license that can be
1.8 +// found in the LICENSE file.
1.9 +//
1.10 +
1.11 +// Context.cpp: Implements the gl::Context class, managing all GL state and performing
1.12 +// rendering operations. It is the GLES2 specific implementation of EGLContext.
1.13 +
1.14 +#include "libGLESv2/Context.h"
1.15 +
1.16 +#include "libGLESv2/main.h"
1.17 +#include "libGLESv2/utilities.h"
1.18 +#include "libGLESv2/Buffer.h"
1.19 +#include "libGLESv2/Fence.h"
1.20 +#include "libGLESv2/Framebuffer.h"
1.21 +#include "libGLESv2/Renderbuffer.h"
1.22 +#include "libGLESv2/Program.h"
1.23 +#include "libGLESv2/ProgramBinary.h"
1.24 +#include "libGLESv2/Query.h"
1.25 +#include "libGLESv2/Texture.h"
1.26 +#include "libGLESv2/ResourceManager.h"
1.27 +#include "libGLESv2/renderer/IndexDataManager.h"
1.28 +#include "libGLESv2/renderer/RenderTarget.h"
1.29 +#include "libGLESv2/renderer/Renderer.h"
1.30 +
1.31 +#include "libEGL/Surface.h"
1.32 +
1.33 +#undef near
1.34 +#undef far
1.35 +
1.36 +namespace gl
1.37 +{
1.38 +static const char* makeStaticString(const std::string& str)
1.39 +{
1.40 + static std::set<std::string> strings;
1.41 + std::set<std::string>::iterator it = strings.find(str);
1.42 + if (it != strings.end())
1.43 + return it->c_str();
1.44 +
1.45 + return strings.insert(str).first->c_str();
1.46 +}
1.47 +
1.48 +Context::Context(const gl::Context *shareContext, rx::Renderer *renderer, bool notifyResets, bool robustAccess) : mRenderer(renderer)
1.49 +{
1.50 + ASSERT(robustAccess == false); // Unimplemented
1.51 +
1.52 + mFenceHandleAllocator.setBaseHandle(0);
1.53 +
1.54 + setClearColor(0.0f, 0.0f, 0.0f, 0.0f);
1.55 +
1.56 + mState.depthClearValue = 1.0f;
1.57 + mState.stencilClearValue = 0;
1.58 +
1.59 + mState.rasterizer.cullFace = false;
1.60 + mState.rasterizer.cullMode = GL_BACK;
1.61 + mState.rasterizer.frontFace = GL_CCW;
1.62 + mState.rasterizer.polygonOffsetFill = false;
1.63 + mState.rasterizer.polygonOffsetFactor = 0.0f;
1.64 + mState.rasterizer.polygonOffsetUnits = 0.0f;
1.65 + mState.rasterizer.pointDrawMode = false;
1.66 + mState.rasterizer.multiSample = false;
1.67 + mState.scissorTest = false;
1.68 + mState.scissor.x = 0;
1.69 + mState.scissor.y = 0;
1.70 + mState.scissor.width = 0;
1.71 + mState.scissor.height = 0;
1.72 +
1.73 + mState.blend.blend = false;
1.74 + mState.blend.sourceBlendRGB = GL_ONE;
1.75 + mState.blend.sourceBlendAlpha = GL_ONE;
1.76 + mState.blend.destBlendRGB = GL_ZERO;
1.77 + mState.blend.destBlendAlpha = GL_ZERO;
1.78 + mState.blend.blendEquationRGB = GL_FUNC_ADD;
1.79 + mState.blend.blendEquationAlpha = GL_FUNC_ADD;
1.80 + mState.blend.sampleAlphaToCoverage = false;
1.81 + mState.blend.dither = true;
1.82 +
1.83 + mState.blendColor.red = 0;
1.84 + mState.blendColor.green = 0;
1.85 + mState.blendColor.blue = 0;
1.86 + mState.blendColor.alpha = 0;
1.87 +
1.88 + mState.depthStencil.depthTest = false;
1.89 + mState.depthStencil.depthFunc = GL_LESS;
1.90 + mState.depthStencil.depthMask = true;
1.91 + mState.depthStencil.stencilTest = false;
1.92 + mState.depthStencil.stencilFunc = GL_ALWAYS;
1.93 + mState.depthStencil.stencilMask = -1;
1.94 + mState.depthStencil.stencilWritemask = -1;
1.95 + mState.depthStencil.stencilBackFunc = GL_ALWAYS;
1.96 + mState.depthStencil.stencilBackMask = - 1;
1.97 + mState.depthStencil.stencilBackWritemask = -1;
1.98 + mState.depthStencil.stencilFail = GL_KEEP;
1.99 + mState.depthStencil.stencilPassDepthFail = GL_KEEP;
1.100 + mState.depthStencil.stencilPassDepthPass = GL_KEEP;
1.101 + mState.depthStencil.stencilBackFail = GL_KEEP;
1.102 + mState.depthStencil.stencilBackPassDepthFail = GL_KEEP;
1.103 + mState.depthStencil.stencilBackPassDepthPass = GL_KEEP;
1.104 +
1.105 + mState.stencilRef = 0;
1.106 + mState.stencilBackRef = 0;
1.107 +
1.108 + mState.sampleCoverage = false;
1.109 + mState.sampleCoverageValue = 1.0f;
1.110 + mState.sampleCoverageInvert = false;
1.111 + mState.generateMipmapHint = GL_DONT_CARE;
1.112 + mState.fragmentShaderDerivativeHint = GL_DONT_CARE;
1.113 +
1.114 + mState.lineWidth = 1.0f;
1.115 +
1.116 + mState.viewport.x = 0;
1.117 + mState.viewport.y = 0;
1.118 + mState.viewport.width = 0;
1.119 + mState.viewport.height = 0;
1.120 + mState.zNear = 0.0f;
1.121 + mState.zFar = 1.0f;
1.122 +
1.123 + mState.blend.colorMaskRed = true;
1.124 + mState.blend.colorMaskGreen = true;
1.125 + mState.blend.colorMaskBlue = true;
1.126 + mState.blend.colorMaskAlpha = true;
1.127 +
1.128 + if (shareContext != NULL)
1.129 + {
1.130 + mResourceManager = shareContext->mResourceManager;
1.131 + mResourceManager->addRef();
1.132 + }
1.133 + else
1.134 + {
1.135 + mResourceManager = new ResourceManager(mRenderer);
1.136 + }
1.137 +
1.138 + // [OpenGL ES 2.0.24] section 3.7 page 83:
1.139 + // In the initial state, TEXTURE_2D and TEXTURE_CUBE_MAP have twodimensional
1.140 + // and cube map texture state vectors respectively associated with them.
1.141 + // In order that access to these initial textures not be lost, they are treated as texture
1.142 + // objects all of whose names are 0.
1.143 +
1.144 + mTexture2DZero.set(new Texture2D(mRenderer, 0));
1.145 + mTextureCubeMapZero.set(new TextureCubeMap(mRenderer, 0));
1.146 +
1.147 + mState.activeSampler = 0;
1.148 + bindArrayBuffer(0);
1.149 + bindElementArrayBuffer(0);
1.150 + bindTextureCubeMap(0);
1.151 + bindTexture2D(0);
1.152 + bindReadFramebuffer(0);
1.153 + bindDrawFramebuffer(0);
1.154 + bindRenderbuffer(0);
1.155 +
1.156 + mState.currentProgram = 0;
1.157 + mCurrentProgramBinary.set(NULL);
1.158 +
1.159 + mState.packAlignment = 4;
1.160 + mState.unpackAlignment = 4;
1.161 + mState.packReverseRowOrder = false;
1.162 +
1.163 + mExtensionString = NULL;
1.164 + mRendererString = NULL;
1.165 +
1.166 + mInvalidEnum = false;
1.167 + mInvalidValue = false;
1.168 + mInvalidOperation = false;
1.169 + mOutOfMemory = false;
1.170 + mInvalidFramebufferOperation = false;
1.171 +
1.172 + mHasBeenCurrent = false;
1.173 + mContextLost = false;
1.174 + mResetStatus = GL_NO_ERROR;
1.175 + mResetStrategy = (notifyResets ? GL_LOSE_CONTEXT_ON_RESET_EXT : GL_NO_RESET_NOTIFICATION_EXT);
1.176 + mRobustAccess = robustAccess;
1.177 +
1.178 + mSupportsBGRATextures = false;
1.179 + mSupportsDXT1Textures = false;
1.180 + mSupportsDXT3Textures = false;
1.181 + mSupportsDXT5Textures = false;
1.182 + mSupportsEventQueries = false;
1.183 + mSupportsOcclusionQueries = false;
1.184 + mNumCompressedTextureFormats = 0;
1.185 +}
1.186 +
1.187 +Context::~Context()
1.188 +{
1.189 + if (mState.currentProgram != 0)
1.190 + {
1.191 + Program *programObject = mResourceManager->getProgram(mState.currentProgram);
1.192 + if (programObject)
1.193 + {
1.194 + programObject->release();
1.195 + }
1.196 + mState.currentProgram = 0;
1.197 + }
1.198 + mCurrentProgramBinary.set(NULL);
1.199 +
1.200 + while (!mFramebufferMap.empty())
1.201 + {
1.202 + deleteFramebuffer(mFramebufferMap.begin()->first);
1.203 + }
1.204 +
1.205 + while (!mFenceMap.empty())
1.206 + {
1.207 + deleteFence(mFenceMap.begin()->first);
1.208 + }
1.209 +
1.210 + while (!mQueryMap.empty())
1.211 + {
1.212 + deleteQuery(mQueryMap.begin()->first);
1.213 + }
1.214 +
1.215 + for (int type = 0; type < TEXTURE_TYPE_COUNT; type++)
1.216 + {
1.217 + for (int sampler = 0; sampler < IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS; sampler++)
1.218 + {
1.219 + mState.samplerTexture[type][sampler].set(NULL);
1.220 + }
1.221 + }
1.222 +
1.223 + for (int type = 0; type < TEXTURE_TYPE_COUNT; type++)
1.224 + {
1.225 + mIncompleteTextures[type].set(NULL);
1.226 + }
1.227 +
1.228 + for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
1.229 + {
1.230 + mState.vertexAttribute[i].mBoundBuffer.set(NULL);
1.231 + }
1.232 +
1.233 + for (int i = 0; i < QUERY_TYPE_COUNT; i++)
1.234 + {
1.235 + mState.activeQuery[i].set(NULL);
1.236 + }
1.237 +
1.238 + mState.arrayBuffer.set(NULL);
1.239 + mState.elementArrayBuffer.set(NULL);
1.240 + mState.renderbuffer.set(NULL);
1.241 +
1.242 + mTexture2DZero.set(NULL);
1.243 + mTextureCubeMapZero.set(NULL);
1.244 +
1.245 + mResourceManager->release();
1.246 +}
1.247 +
1.248 +void Context::makeCurrent(egl::Surface *surface)
1.249 +{
1.250 + if (!mHasBeenCurrent)
1.251 + {
1.252 + mMajorShaderModel = mRenderer->getMajorShaderModel();
1.253 + mMaximumPointSize = mRenderer->getMaxPointSize();
1.254 + mSupportsVertexTexture = mRenderer->getVertexTextureSupport();
1.255 + mSupportsNonPower2Texture = mRenderer->getNonPower2TextureSupport();
1.256 + mSupportsInstancing = mRenderer->getInstancingSupport();
1.257 +
1.258 + mMaxViewportDimension = mRenderer->getMaxViewportDimension();
1.259 + mMaxTextureDimension = std::min(std::min(mRenderer->getMaxTextureWidth(), mRenderer->getMaxTextureHeight()),
1.260 + (int)gl::IMPLEMENTATION_MAX_TEXTURE_SIZE);
1.261 + mMaxCubeTextureDimension = std::min(mMaxTextureDimension, (int)gl::IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE);
1.262 + mMaxRenderbufferDimension = mMaxTextureDimension;
1.263 + mMaxTextureLevel = log2(mMaxTextureDimension) + 1;
1.264 + mMaxTextureAnisotropy = mRenderer->getTextureMaxAnisotropy();
1.265 + TRACE("MaxTextureDimension=%d, MaxCubeTextureDimension=%d, MaxRenderbufferDimension=%d, MaxTextureLevel=%d, MaxTextureAnisotropy=%f",
1.266 + mMaxTextureDimension, mMaxCubeTextureDimension, mMaxRenderbufferDimension, mMaxTextureLevel, mMaxTextureAnisotropy);
1.267 +
1.268 + mSupportsEventQueries = mRenderer->getEventQuerySupport();
1.269 + mSupportsOcclusionQueries = mRenderer->getOcclusionQuerySupport();
1.270 + mSupportsBGRATextures = mRenderer->getBGRATextureSupport();
1.271 + mSupportsDXT1Textures = mRenderer->getDXT1TextureSupport();
1.272 + mSupportsDXT3Textures = mRenderer->getDXT3TextureSupport();
1.273 + mSupportsDXT5Textures = mRenderer->getDXT5TextureSupport();
1.274 + mSupportsFloat32Textures = mRenderer->getFloat32TextureSupport(&mSupportsFloat32LinearFilter, &mSupportsFloat32RenderableTextures);
1.275 + mSupportsFloat16Textures = mRenderer->getFloat16TextureSupport(&mSupportsFloat16LinearFilter, &mSupportsFloat16RenderableTextures);
1.276 + mSupportsLuminanceTextures = mRenderer->getLuminanceTextureSupport();
1.277 + mSupportsLuminanceAlphaTextures = mRenderer->getLuminanceAlphaTextureSupport();
1.278 + mSupportsDepthTextures = mRenderer->getDepthTextureSupport();
1.279 + mSupportsTextureFilterAnisotropy = mRenderer->getTextureFilterAnisotropySupport();
1.280 + mSupports32bitIndices = mRenderer->get32BitIndexSupport();
1.281 +
1.282 + mNumCompressedTextureFormats = 0;
1.283 + if (supportsDXT1Textures())
1.284 + {
1.285 + mNumCompressedTextureFormats += 2;
1.286 + }
1.287 + if (supportsDXT3Textures())
1.288 + {
1.289 + mNumCompressedTextureFormats += 1;
1.290 + }
1.291 + if (supportsDXT5Textures())
1.292 + {
1.293 + mNumCompressedTextureFormats += 1;
1.294 + }
1.295 +
1.296 + initExtensionString();
1.297 + initRendererString();
1.298 +
1.299 + mState.viewport.x = 0;
1.300 + mState.viewport.y = 0;
1.301 + mState.viewport.width = surface->getWidth();
1.302 + mState.viewport.height = surface->getHeight();
1.303 +
1.304 + mState.scissor.x = 0;
1.305 + mState.scissor.y = 0;
1.306 + mState.scissor.width = surface->getWidth();
1.307 + mState.scissor.height = surface->getHeight();
1.308 +
1.309 + mHasBeenCurrent = true;
1.310 + }
1.311 +
1.312 + // Wrap the existing swapchain resources into GL objects and assign them to the '0' names
1.313 + rx::SwapChain *swapchain = surface->getSwapChain();
1.314 +
1.315 + Colorbuffer *colorbufferZero = new Colorbuffer(mRenderer, swapchain);
1.316 + DepthStencilbuffer *depthStencilbufferZero = new DepthStencilbuffer(mRenderer, swapchain);
1.317 + Framebuffer *framebufferZero = new DefaultFramebuffer(mRenderer, colorbufferZero, depthStencilbufferZero);
1.318 +
1.319 + setFramebufferZero(framebufferZero);
1.320 +}
1.321 +
1.322 +// NOTE: this function should not assume that this context is current!
1.323 +void Context::markContextLost()
1.324 +{
1.325 + if (mResetStrategy == GL_LOSE_CONTEXT_ON_RESET_EXT)
1.326 + mResetStatus = GL_UNKNOWN_CONTEXT_RESET_EXT;
1.327 + mContextLost = true;
1.328 +}
1.329 +
1.330 +bool Context::isContextLost()
1.331 +{
1.332 + return mContextLost;
1.333 +}
1.334 +
1.335 +void Context::setClearColor(float red, float green, float blue, float alpha)
1.336 +{
1.337 + mState.colorClearValue.red = red;
1.338 + mState.colorClearValue.green = green;
1.339 + mState.colorClearValue.blue = blue;
1.340 + mState.colorClearValue.alpha = alpha;
1.341 +}
1.342 +
1.343 +void Context::setClearDepth(float depth)
1.344 +{
1.345 + mState.depthClearValue = depth;
1.346 +}
1.347 +
1.348 +void Context::setClearStencil(int stencil)
1.349 +{
1.350 + mState.stencilClearValue = stencil;
1.351 +}
1.352 +
1.353 +void Context::setCullFace(bool enabled)
1.354 +{
1.355 + mState.rasterizer.cullFace = enabled;
1.356 +}
1.357 +
1.358 +bool Context::isCullFaceEnabled() const
1.359 +{
1.360 + return mState.rasterizer.cullFace;
1.361 +}
1.362 +
1.363 +void Context::setCullMode(GLenum mode)
1.364 +{
1.365 + mState.rasterizer.cullMode = mode;
1.366 +}
1.367 +
1.368 +void Context::setFrontFace(GLenum front)
1.369 +{
1.370 + mState.rasterizer.frontFace = front;
1.371 +}
1.372 +
1.373 +void Context::setDepthTest(bool enabled)
1.374 +{
1.375 + mState.depthStencil.depthTest = enabled;
1.376 +}
1.377 +
1.378 +bool Context::isDepthTestEnabled() const
1.379 +{
1.380 + return mState.depthStencil.depthTest;
1.381 +}
1.382 +
1.383 +void Context::setDepthFunc(GLenum depthFunc)
1.384 +{
1.385 + mState.depthStencil.depthFunc = depthFunc;
1.386 +}
1.387 +
1.388 +void Context::setDepthRange(float zNear, float zFar)
1.389 +{
1.390 + mState.zNear = zNear;
1.391 + mState.zFar = zFar;
1.392 +}
1.393 +
1.394 +void Context::setBlend(bool enabled)
1.395 +{
1.396 + mState.blend.blend = enabled;
1.397 +}
1.398 +
1.399 +bool Context::isBlendEnabled() const
1.400 +{
1.401 + return mState.blend.blend;
1.402 +}
1.403 +
1.404 +void Context::setBlendFactors(GLenum sourceRGB, GLenum destRGB, GLenum sourceAlpha, GLenum destAlpha)
1.405 +{
1.406 + mState.blend.sourceBlendRGB = sourceRGB;
1.407 + mState.blend.destBlendRGB = destRGB;
1.408 + mState.blend.sourceBlendAlpha = sourceAlpha;
1.409 + mState.blend.destBlendAlpha = destAlpha;
1.410 +}
1.411 +
1.412 +void Context::setBlendColor(float red, float green, float blue, float alpha)
1.413 +{
1.414 + mState.blendColor.red = red;
1.415 + mState.blendColor.green = green;
1.416 + mState.blendColor.blue = blue;
1.417 + mState.blendColor.alpha = alpha;
1.418 +}
1.419 +
1.420 +void Context::setBlendEquation(GLenum rgbEquation, GLenum alphaEquation)
1.421 +{
1.422 + mState.blend.blendEquationRGB = rgbEquation;
1.423 + mState.blend.blendEquationAlpha = alphaEquation;
1.424 +}
1.425 +
1.426 +void Context::setStencilTest(bool enabled)
1.427 +{
1.428 + mState.depthStencil.stencilTest = enabled;
1.429 +}
1.430 +
1.431 +bool Context::isStencilTestEnabled() const
1.432 +{
1.433 + return mState.depthStencil.stencilTest;
1.434 +}
1.435 +
1.436 +void Context::setStencilParams(GLenum stencilFunc, GLint stencilRef, GLuint stencilMask)
1.437 +{
1.438 + mState.depthStencil.stencilFunc = stencilFunc;
1.439 + mState.stencilRef = (stencilRef > 0) ? stencilRef : 0;
1.440 + mState.depthStencil.stencilMask = stencilMask;
1.441 +}
1.442 +
1.443 +void Context::setStencilBackParams(GLenum stencilBackFunc, GLint stencilBackRef, GLuint stencilBackMask)
1.444 +{
1.445 + mState.depthStencil.stencilBackFunc = stencilBackFunc;
1.446 + mState.stencilBackRef = (stencilBackRef > 0) ? stencilBackRef : 0;
1.447 + mState.depthStencil.stencilBackMask = stencilBackMask;
1.448 +}
1.449 +
1.450 +void Context::setStencilWritemask(GLuint stencilWritemask)
1.451 +{
1.452 + mState.depthStencil.stencilWritemask = stencilWritemask;
1.453 +}
1.454 +
1.455 +void Context::setStencilBackWritemask(GLuint stencilBackWritemask)
1.456 +{
1.457 + mState.depthStencil.stencilBackWritemask = stencilBackWritemask;
1.458 +}
1.459 +
1.460 +void Context::setStencilOperations(GLenum stencilFail, GLenum stencilPassDepthFail, GLenum stencilPassDepthPass)
1.461 +{
1.462 + mState.depthStencil.stencilFail = stencilFail;
1.463 + mState.depthStencil.stencilPassDepthFail = stencilPassDepthFail;
1.464 + mState.depthStencil.stencilPassDepthPass = stencilPassDepthPass;
1.465 +}
1.466 +
1.467 +void Context::setStencilBackOperations(GLenum stencilBackFail, GLenum stencilBackPassDepthFail, GLenum stencilBackPassDepthPass)
1.468 +{
1.469 + mState.depthStencil.stencilBackFail = stencilBackFail;
1.470 + mState.depthStencil.stencilBackPassDepthFail = stencilBackPassDepthFail;
1.471 + mState.depthStencil.stencilBackPassDepthPass = stencilBackPassDepthPass;
1.472 +}
1.473 +
1.474 +void Context::setPolygonOffsetFill(bool enabled)
1.475 +{
1.476 + mState.rasterizer.polygonOffsetFill = enabled;
1.477 +}
1.478 +
1.479 +bool Context::isPolygonOffsetFillEnabled() const
1.480 +{
1.481 + return mState.rasterizer.polygonOffsetFill;
1.482 +}
1.483 +
1.484 +void Context::setPolygonOffsetParams(GLfloat factor, GLfloat units)
1.485 +{
1.486 + // An application can pass NaN values here, so handle this gracefully
1.487 + mState.rasterizer.polygonOffsetFactor = factor != factor ? 0.0f : factor;
1.488 + mState.rasterizer.polygonOffsetUnits = units != units ? 0.0f : units;
1.489 +}
1.490 +
1.491 +void Context::setSampleAlphaToCoverage(bool enabled)
1.492 +{
1.493 + mState.blend.sampleAlphaToCoverage = enabled;
1.494 +}
1.495 +
1.496 +bool Context::isSampleAlphaToCoverageEnabled() const
1.497 +{
1.498 + return mState.blend.sampleAlphaToCoverage;
1.499 +}
1.500 +
1.501 +void Context::setSampleCoverage(bool enabled)
1.502 +{
1.503 + mState.sampleCoverage = enabled;
1.504 +}
1.505 +
1.506 +bool Context::isSampleCoverageEnabled() const
1.507 +{
1.508 + return mState.sampleCoverage;
1.509 +}
1.510 +
1.511 +void Context::setSampleCoverageParams(GLclampf value, bool invert)
1.512 +{
1.513 + mState.sampleCoverageValue = value;
1.514 + mState.sampleCoverageInvert = invert;
1.515 +}
1.516 +
1.517 +void Context::setScissorTest(bool enabled)
1.518 +{
1.519 + mState.scissorTest = enabled;
1.520 +}
1.521 +
1.522 +bool Context::isScissorTestEnabled() const
1.523 +{
1.524 + return mState.scissorTest;
1.525 +}
1.526 +
1.527 +void Context::setDither(bool enabled)
1.528 +{
1.529 + mState.blend.dither = enabled;
1.530 +}
1.531 +
1.532 +bool Context::isDitherEnabled() const
1.533 +{
1.534 + return mState.blend.dither;
1.535 +}
1.536 +
1.537 +void Context::setLineWidth(GLfloat width)
1.538 +{
1.539 + mState.lineWidth = width;
1.540 +}
1.541 +
1.542 +void Context::setGenerateMipmapHint(GLenum hint)
1.543 +{
1.544 + mState.generateMipmapHint = hint;
1.545 +}
1.546 +
1.547 +void Context::setFragmentShaderDerivativeHint(GLenum hint)
1.548 +{
1.549 + mState.fragmentShaderDerivativeHint = hint;
1.550 + // TODO: Propagate the hint to shader translator so we can write
1.551 + // ddx, ddx_coarse, or ddx_fine depending on the hint.
1.552 + // Ignore for now. It is valid for implementations to ignore hint.
1.553 +}
1.554 +
1.555 +void Context::setViewportParams(GLint x, GLint y, GLsizei width, GLsizei height)
1.556 +{
1.557 + mState.viewport.x = x;
1.558 + mState.viewport.y = y;
1.559 + mState.viewport.width = width;
1.560 + mState.viewport.height = height;
1.561 +}
1.562 +
1.563 +void Context::setScissorParams(GLint x, GLint y, GLsizei width, GLsizei height)
1.564 +{
1.565 + mState.scissor.x = x;
1.566 + mState.scissor.y = y;
1.567 + mState.scissor.width = width;
1.568 + mState.scissor.height = height;
1.569 +}
1.570 +
1.571 +void Context::setColorMask(bool red, bool green, bool blue, bool alpha)
1.572 +{
1.573 + mState.blend.colorMaskRed = red;
1.574 + mState.blend.colorMaskGreen = green;
1.575 + mState.blend.colorMaskBlue = blue;
1.576 + mState.blend.colorMaskAlpha = alpha;
1.577 +}
1.578 +
1.579 +void Context::setDepthMask(bool mask)
1.580 +{
1.581 + mState.depthStencil.depthMask = mask;
1.582 +}
1.583 +
1.584 +void Context::setActiveSampler(unsigned int active)
1.585 +{
1.586 + mState.activeSampler = active;
1.587 +}
1.588 +
1.589 +GLuint Context::getReadFramebufferHandle() const
1.590 +{
1.591 + return mState.readFramebuffer;
1.592 +}
1.593 +
1.594 +GLuint Context::getDrawFramebufferHandle() const
1.595 +{
1.596 + return mState.drawFramebuffer;
1.597 +}
1.598 +
1.599 +GLuint Context::getRenderbufferHandle() const
1.600 +{
1.601 + return mState.renderbuffer.id();
1.602 +}
1.603 +
1.604 +GLuint Context::getArrayBufferHandle() const
1.605 +{
1.606 + return mState.arrayBuffer.id();
1.607 +}
1.608 +
1.609 +GLuint Context::getActiveQuery(GLenum target) const
1.610 +{
1.611 + Query *queryObject = NULL;
1.612 +
1.613 + switch (target)
1.614 + {
1.615 + case GL_ANY_SAMPLES_PASSED_EXT:
1.616 + queryObject = mState.activeQuery[QUERY_ANY_SAMPLES_PASSED].get();
1.617 + break;
1.618 + case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
1.619 + queryObject = mState.activeQuery[QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE].get();
1.620 + break;
1.621 + default:
1.622 + ASSERT(false);
1.623 + }
1.624 +
1.625 + if (queryObject)
1.626 + {
1.627 + return queryObject->id();
1.628 + }
1.629 + else
1.630 + {
1.631 + return 0;
1.632 + }
1.633 +}
1.634 +
1.635 +void Context::setEnableVertexAttribArray(unsigned int attribNum, bool enabled)
1.636 +{
1.637 + mState.vertexAttribute[attribNum].mArrayEnabled = enabled;
1.638 +}
1.639 +
1.640 +const VertexAttribute &Context::getVertexAttribState(unsigned int attribNum)
1.641 +{
1.642 + return mState.vertexAttribute[attribNum];
1.643 +}
1.644 +
1.645 +void Context::setVertexAttribState(unsigned int attribNum, Buffer *boundBuffer, GLint size, GLenum type, bool normalized,
1.646 + GLsizei stride, const void *pointer)
1.647 +{
1.648 + mState.vertexAttribute[attribNum].mBoundBuffer.set(boundBuffer);
1.649 + mState.vertexAttribute[attribNum].mSize = size;
1.650 + mState.vertexAttribute[attribNum].mType = type;
1.651 + mState.vertexAttribute[attribNum].mNormalized = normalized;
1.652 + mState.vertexAttribute[attribNum].mStride = stride;
1.653 + mState.vertexAttribute[attribNum].mPointer = pointer;
1.654 +}
1.655 +
1.656 +const void *Context::getVertexAttribPointer(unsigned int attribNum) const
1.657 +{
1.658 + return mState.vertexAttribute[attribNum].mPointer;
1.659 +}
1.660 +
1.661 +void Context::setPackAlignment(GLint alignment)
1.662 +{
1.663 + mState.packAlignment = alignment;
1.664 +}
1.665 +
1.666 +GLint Context::getPackAlignment() const
1.667 +{
1.668 + return mState.packAlignment;
1.669 +}
1.670 +
1.671 +void Context::setUnpackAlignment(GLint alignment)
1.672 +{
1.673 + mState.unpackAlignment = alignment;
1.674 +}
1.675 +
1.676 +GLint Context::getUnpackAlignment() const
1.677 +{
1.678 + return mState.unpackAlignment;
1.679 +}
1.680 +
1.681 +void Context::setPackReverseRowOrder(bool reverseRowOrder)
1.682 +{
1.683 + mState.packReverseRowOrder = reverseRowOrder;
1.684 +}
1.685 +
1.686 +bool Context::getPackReverseRowOrder() const
1.687 +{
1.688 + return mState.packReverseRowOrder;
1.689 +}
1.690 +
1.691 +GLuint Context::createBuffer()
1.692 +{
1.693 + return mResourceManager->createBuffer();
1.694 +}
1.695 +
1.696 +GLuint Context::createProgram()
1.697 +{
1.698 + return mResourceManager->createProgram();
1.699 +}
1.700 +
1.701 +GLuint Context::createShader(GLenum type)
1.702 +{
1.703 + return mResourceManager->createShader(type);
1.704 +}
1.705 +
1.706 +GLuint Context::createTexture()
1.707 +{
1.708 + return mResourceManager->createTexture();
1.709 +}
1.710 +
1.711 +GLuint Context::createRenderbuffer()
1.712 +{
1.713 + return mResourceManager->createRenderbuffer();
1.714 +}
1.715 +
1.716 +// Returns an unused framebuffer name
1.717 +GLuint Context::createFramebuffer()
1.718 +{
1.719 + GLuint handle = mFramebufferHandleAllocator.allocate();
1.720 +
1.721 + mFramebufferMap[handle] = NULL;
1.722 +
1.723 + return handle;
1.724 +}
1.725 +
1.726 +GLuint Context::createFence()
1.727 +{
1.728 + GLuint handle = mFenceHandleAllocator.allocate();
1.729 +
1.730 + mFenceMap[handle] = new Fence(mRenderer);
1.731 +
1.732 + return handle;
1.733 +}
1.734 +
1.735 +// Returns an unused query name
1.736 +GLuint Context::createQuery()
1.737 +{
1.738 + GLuint handle = mQueryHandleAllocator.allocate();
1.739 +
1.740 + mQueryMap[handle] = NULL;
1.741 +
1.742 + return handle;
1.743 +}
1.744 +
1.745 +void Context::deleteBuffer(GLuint buffer)
1.746 +{
1.747 + if (mResourceManager->getBuffer(buffer))
1.748 + {
1.749 + detachBuffer(buffer);
1.750 + }
1.751 +
1.752 + mResourceManager->deleteBuffer(buffer);
1.753 +}
1.754 +
1.755 +void Context::deleteShader(GLuint shader)
1.756 +{
1.757 + mResourceManager->deleteShader(shader);
1.758 +}
1.759 +
1.760 +void Context::deleteProgram(GLuint program)
1.761 +{
1.762 + mResourceManager->deleteProgram(program);
1.763 +}
1.764 +
1.765 +void Context::deleteTexture(GLuint texture)
1.766 +{
1.767 + if (mResourceManager->getTexture(texture))
1.768 + {
1.769 + detachTexture(texture);
1.770 + }
1.771 +
1.772 + mResourceManager->deleteTexture(texture);
1.773 +}
1.774 +
1.775 +void Context::deleteRenderbuffer(GLuint renderbuffer)
1.776 +{
1.777 + if (mResourceManager->getRenderbuffer(renderbuffer))
1.778 + {
1.779 + detachRenderbuffer(renderbuffer);
1.780 + }
1.781 +
1.782 + mResourceManager->deleteRenderbuffer(renderbuffer);
1.783 +}
1.784 +
1.785 +void Context::deleteFramebuffer(GLuint framebuffer)
1.786 +{
1.787 + FramebufferMap::iterator framebufferObject = mFramebufferMap.find(framebuffer);
1.788 +
1.789 + if (framebufferObject != mFramebufferMap.end())
1.790 + {
1.791 + detachFramebuffer(framebuffer);
1.792 +
1.793 + mFramebufferHandleAllocator.release(framebufferObject->first);
1.794 + delete framebufferObject->second;
1.795 + mFramebufferMap.erase(framebufferObject);
1.796 + }
1.797 +}
1.798 +
1.799 +void Context::deleteFence(GLuint fence)
1.800 +{
1.801 + FenceMap::iterator fenceObject = mFenceMap.find(fence);
1.802 +
1.803 + if (fenceObject != mFenceMap.end())
1.804 + {
1.805 + mFenceHandleAllocator.release(fenceObject->first);
1.806 + delete fenceObject->second;
1.807 + mFenceMap.erase(fenceObject);
1.808 + }
1.809 +}
1.810 +
1.811 +void Context::deleteQuery(GLuint query)
1.812 +{
1.813 + QueryMap::iterator queryObject = mQueryMap.find(query);
1.814 + if (queryObject != mQueryMap.end())
1.815 + {
1.816 + mQueryHandleAllocator.release(queryObject->first);
1.817 + if (queryObject->second)
1.818 + {
1.819 + queryObject->second->release();
1.820 + }
1.821 + mQueryMap.erase(queryObject);
1.822 + }
1.823 +}
1.824 +
1.825 +Buffer *Context::getBuffer(GLuint handle)
1.826 +{
1.827 + return mResourceManager->getBuffer(handle);
1.828 +}
1.829 +
1.830 +Shader *Context::getShader(GLuint handle)
1.831 +{
1.832 + return mResourceManager->getShader(handle);
1.833 +}
1.834 +
1.835 +Program *Context::getProgram(GLuint handle)
1.836 +{
1.837 + return mResourceManager->getProgram(handle);
1.838 +}
1.839 +
1.840 +Texture *Context::getTexture(GLuint handle)
1.841 +{
1.842 + return mResourceManager->getTexture(handle);
1.843 +}
1.844 +
1.845 +Renderbuffer *Context::getRenderbuffer(GLuint handle)
1.846 +{
1.847 + return mResourceManager->getRenderbuffer(handle);
1.848 +}
1.849 +
1.850 +Framebuffer *Context::getReadFramebuffer()
1.851 +{
1.852 + return getFramebuffer(mState.readFramebuffer);
1.853 +}
1.854 +
1.855 +Framebuffer *Context::getDrawFramebuffer()
1.856 +{
1.857 + return mBoundDrawFramebuffer;
1.858 +}
1.859 +
1.860 +void Context::bindArrayBuffer(unsigned int buffer)
1.861 +{
1.862 + mResourceManager->checkBufferAllocation(buffer);
1.863 +
1.864 + mState.arrayBuffer.set(getBuffer(buffer));
1.865 +}
1.866 +
1.867 +void Context::bindElementArrayBuffer(unsigned int buffer)
1.868 +{
1.869 + mResourceManager->checkBufferAllocation(buffer);
1.870 +
1.871 + mState.elementArrayBuffer.set(getBuffer(buffer));
1.872 +}
1.873 +
1.874 +void Context::bindTexture2D(GLuint texture)
1.875 +{
1.876 + mResourceManager->checkTextureAllocation(texture, TEXTURE_2D);
1.877 +
1.878 + mState.samplerTexture[TEXTURE_2D][mState.activeSampler].set(getTexture(texture));
1.879 +}
1.880 +
1.881 +void Context::bindTextureCubeMap(GLuint texture)
1.882 +{
1.883 + mResourceManager->checkTextureAllocation(texture, TEXTURE_CUBE);
1.884 +
1.885 + mState.samplerTexture[TEXTURE_CUBE][mState.activeSampler].set(getTexture(texture));
1.886 +}
1.887 +
1.888 +void Context::bindReadFramebuffer(GLuint framebuffer)
1.889 +{
1.890 + if (!getFramebuffer(framebuffer))
1.891 + {
1.892 + mFramebufferMap[framebuffer] = new Framebuffer(mRenderer);
1.893 + }
1.894 +
1.895 + mState.readFramebuffer = framebuffer;
1.896 +}
1.897 +
1.898 +void Context::bindDrawFramebuffer(GLuint framebuffer)
1.899 +{
1.900 + if (!getFramebuffer(framebuffer))
1.901 + {
1.902 + mFramebufferMap[framebuffer] = new Framebuffer(mRenderer);
1.903 + }
1.904 +
1.905 + mState.drawFramebuffer = framebuffer;
1.906 +
1.907 + mBoundDrawFramebuffer = getFramebuffer(framebuffer);
1.908 +}
1.909 +
1.910 +void Context::bindRenderbuffer(GLuint renderbuffer)
1.911 +{
1.912 + mResourceManager->checkRenderbufferAllocation(renderbuffer);
1.913 +
1.914 + mState.renderbuffer.set(getRenderbuffer(renderbuffer));
1.915 +}
1.916 +
1.917 +void Context::useProgram(GLuint program)
1.918 +{
1.919 + GLuint priorProgram = mState.currentProgram;
1.920 + mState.currentProgram = program; // Must switch before trying to delete, otherwise it only gets flagged.
1.921 +
1.922 + if (priorProgram != program)
1.923 + {
1.924 + Program *newProgram = mResourceManager->getProgram(program);
1.925 + Program *oldProgram = mResourceManager->getProgram(priorProgram);
1.926 + mCurrentProgramBinary.set(NULL);
1.927 +
1.928 + if (newProgram)
1.929 + {
1.930 + newProgram->addRef();
1.931 + mCurrentProgramBinary.set(newProgram->getProgramBinary());
1.932 + }
1.933 +
1.934 + if (oldProgram)
1.935 + {
1.936 + oldProgram->release();
1.937 + }
1.938 + }
1.939 +}
1.940 +
1.941 +void Context::linkProgram(GLuint program)
1.942 +{
1.943 + Program *programObject = mResourceManager->getProgram(program);
1.944 +
1.945 + bool linked = programObject->link();
1.946 +
1.947 + // if the current program was relinked successfully we
1.948 + // need to install the new executables
1.949 + if (linked && program == mState.currentProgram)
1.950 + {
1.951 + mCurrentProgramBinary.set(programObject->getProgramBinary());
1.952 + }
1.953 +}
1.954 +
1.955 +void Context::setProgramBinary(GLuint program, const void *binary, GLint length)
1.956 +{
1.957 + Program *programObject = mResourceManager->getProgram(program);
1.958 +
1.959 + bool loaded = programObject->setProgramBinary(binary, length);
1.960 +
1.961 + // if the current program was reloaded successfully we
1.962 + // need to install the new executables
1.963 + if (loaded && program == mState.currentProgram)
1.964 + {
1.965 + mCurrentProgramBinary.set(programObject->getProgramBinary());
1.966 + }
1.967 +
1.968 +}
1.969 +
1.970 +void Context::beginQuery(GLenum target, GLuint query)
1.971 +{
1.972 + // From EXT_occlusion_query_boolean: If BeginQueryEXT is called with an <id>
1.973 + // of zero, if the active query object name for <target> is non-zero (for the
1.974 + // targets ANY_SAMPLES_PASSED_EXT and ANY_SAMPLES_PASSED_CONSERVATIVE_EXT, if
1.975 + // the active query for either target is non-zero), if <id> is the name of an
1.976 + // existing query object whose type does not match <target>, or if <id> is the
1.977 + // active query object name for any query type, the error INVALID_OPERATION is
1.978 + // generated.
1.979 +
1.980 + // Ensure no other queries are active
1.981 + // NOTE: If other queries than occlusion are supported, we will need to check
1.982 + // separately that:
1.983 + // a) The query ID passed is not the current active query for any target/type
1.984 + // b) There are no active queries for the requested target (and in the case
1.985 + // of GL_ANY_SAMPLES_PASSED_EXT and GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT,
1.986 + // no query may be active for either if glBeginQuery targets either.
1.987 + for (int i = 0; i < QUERY_TYPE_COUNT; i++)
1.988 + {
1.989 + if (mState.activeQuery[i].get() != NULL)
1.990 + {
1.991 + return gl::error(GL_INVALID_OPERATION);
1.992 + }
1.993 + }
1.994 +
1.995 + QueryType qType;
1.996 + switch (target)
1.997 + {
1.998 + case GL_ANY_SAMPLES_PASSED_EXT:
1.999 + qType = QUERY_ANY_SAMPLES_PASSED;
1.1000 + break;
1.1001 + case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
1.1002 + qType = QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE;
1.1003 + break;
1.1004 + default:
1.1005 + ASSERT(false);
1.1006 + return;
1.1007 + }
1.1008 +
1.1009 + Query *queryObject = getQuery(query, true, target);
1.1010 +
1.1011 + // check that name was obtained with glGenQueries
1.1012 + if (!queryObject)
1.1013 + {
1.1014 + return gl::error(GL_INVALID_OPERATION);
1.1015 + }
1.1016 +
1.1017 + // check for type mismatch
1.1018 + if (queryObject->getType() != target)
1.1019 + {
1.1020 + return gl::error(GL_INVALID_OPERATION);
1.1021 + }
1.1022 +
1.1023 + // set query as active for specified target
1.1024 + mState.activeQuery[qType].set(queryObject);
1.1025 +
1.1026 + // begin query
1.1027 + queryObject->begin();
1.1028 +}
1.1029 +
1.1030 +void Context::endQuery(GLenum target)
1.1031 +{
1.1032 + QueryType qType;
1.1033 +
1.1034 + switch (target)
1.1035 + {
1.1036 + case GL_ANY_SAMPLES_PASSED_EXT:
1.1037 + qType = QUERY_ANY_SAMPLES_PASSED;
1.1038 + break;
1.1039 + case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
1.1040 + qType = QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE;
1.1041 + break;
1.1042 + default:
1.1043 + ASSERT(false);
1.1044 + return;
1.1045 + }
1.1046 +
1.1047 + Query *queryObject = mState.activeQuery[qType].get();
1.1048 +
1.1049 + if (queryObject == NULL)
1.1050 + {
1.1051 + return gl::error(GL_INVALID_OPERATION);
1.1052 + }
1.1053 +
1.1054 + queryObject->end();
1.1055 +
1.1056 + mState.activeQuery[qType].set(NULL);
1.1057 +}
1.1058 +
1.1059 +void Context::setFramebufferZero(Framebuffer *buffer)
1.1060 +{
1.1061 + delete mFramebufferMap[0];
1.1062 + mFramebufferMap[0] = buffer;
1.1063 + if (mState.drawFramebuffer == 0)
1.1064 + {
1.1065 + mBoundDrawFramebuffer = buffer;
1.1066 + }
1.1067 +}
1.1068 +
1.1069 +void Context::setRenderbufferStorage(GLsizei width, GLsizei height, GLenum internalformat, GLsizei samples)
1.1070 +{
1.1071 + RenderbufferStorage *renderbuffer = NULL;
1.1072 + switch (internalformat)
1.1073 + {
1.1074 + case GL_DEPTH_COMPONENT16:
1.1075 + renderbuffer = new gl::Depthbuffer(mRenderer, width, height, samples);
1.1076 + break;
1.1077 + case GL_RGBA4:
1.1078 + case GL_RGB5_A1:
1.1079 + case GL_RGB565:
1.1080 + case GL_RGB8_OES:
1.1081 + case GL_RGBA8_OES:
1.1082 + renderbuffer = new gl::Colorbuffer(mRenderer,width, height, internalformat, samples);
1.1083 + break;
1.1084 + case GL_STENCIL_INDEX8:
1.1085 + renderbuffer = new gl::Stencilbuffer(mRenderer, width, height, samples);
1.1086 + break;
1.1087 + case GL_DEPTH24_STENCIL8_OES:
1.1088 + renderbuffer = new gl::DepthStencilbuffer(mRenderer, width, height, samples);
1.1089 + break;
1.1090 + default:
1.1091 + UNREACHABLE(); return;
1.1092 + }
1.1093 +
1.1094 + Renderbuffer *renderbufferObject = mState.renderbuffer.get();
1.1095 + renderbufferObject->setStorage(renderbuffer);
1.1096 +}
1.1097 +
1.1098 +Framebuffer *Context::getFramebuffer(unsigned int handle)
1.1099 +{
1.1100 + FramebufferMap::iterator framebuffer = mFramebufferMap.find(handle);
1.1101 +
1.1102 + if (framebuffer == mFramebufferMap.end())
1.1103 + {
1.1104 + return NULL;
1.1105 + }
1.1106 + else
1.1107 + {
1.1108 + return framebuffer->second;
1.1109 + }
1.1110 +}
1.1111 +
1.1112 +Fence *Context::getFence(unsigned int handle)
1.1113 +{
1.1114 + FenceMap::iterator fence = mFenceMap.find(handle);
1.1115 +
1.1116 + if (fence == mFenceMap.end())
1.1117 + {
1.1118 + return NULL;
1.1119 + }
1.1120 + else
1.1121 + {
1.1122 + return fence->second;
1.1123 + }
1.1124 +}
1.1125 +
1.1126 +Query *Context::getQuery(unsigned int handle, bool create, GLenum type)
1.1127 +{
1.1128 + QueryMap::iterator query = mQueryMap.find(handle);
1.1129 +
1.1130 + if (query == mQueryMap.end())
1.1131 + {
1.1132 + return NULL;
1.1133 + }
1.1134 + else
1.1135 + {
1.1136 + if (!query->second && create)
1.1137 + {
1.1138 + query->second = new Query(mRenderer, type, handle);
1.1139 + query->second->addRef();
1.1140 + }
1.1141 + return query->second;
1.1142 + }
1.1143 +}
1.1144 +
1.1145 +Buffer *Context::getArrayBuffer()
1.1146 +{
1.1147 + return mState.arrayBuffer.get();
1.1148 +}
1.1149 +
1.1150 +Buffer *Context::getElementArrayBuffer()
1.1151 +{
1.1152 + return mState.elementArrayBuffer.get();
1.1153 +}
1.1154 +
1.1155 +ProgramBinary *Context::getCurrentProgramBinary()
1.1156 +{
1.1157 + return mCurrentProgramBinary.get();
1.1158 +}
1.1159 +
1.1160 +Texture2D *Context::getTexture2D()
1.1161 +{
1.1162 + return static_cast<Texture2D*>(getSamplerTexture(mState.activeSampler, TEXTURE_2D));
1.1163 +}
1.1164 +
1.1165 +TextureCubeMap *Context::getTextureCubeMap()
1.1166 +{
1.1167 + return static_cast<TextureCubeMap*>(getSamplerTexture(mState.activeSampler, TEXTURE_CUBE));
1.1168 +}
1.1169 +
1.1170 +Texture *Context::getSamplerTexture(unsigned int sampler, TextureType type)
1.1171 +{
1.1172 + GLuint texid = mState.samplerTexture[type][sampler].id();
1.1173 +
1.1174 + if (texid == 0) // Special case: 0 refers to different initial textures based on the target
1.1175 + {
1.1176 + switch (type)
1.1177 + {
1.1178 + default: UNREACHABLE();
1.1179 + case TEXTURE_2D: return mTexture2DZero.get();
1.1180 + case TEXTURE_CUBE: return mTextureCubeMapZero.get();
1.1181 + }
1.1182 + }
1.1183 +
1.1184 + return mState.samplerTexture[type][sampler].get();
1.1185 +}
1.1186 +
1.1187 +bool Context::getBooleanv(GLenum pname, GLboolean *params)
1.1188 +{
1.1189 + switch (pname)
1.1190 + {
1.1191 + case GL_SHADER_COMPILER: *params = GL_TRUE; break;
1.1192 + case GL_SAMPLE_COVERAGE_INVERT: *params = mState.sampleCoverageInvert; break;
1.1193 + case GL_DEPTH_WRITEMASK: *params = mState.depthStencil.depthMask; break;
1.1194 + case GL_COLOR_WRITEMASK:
1.1195 + params[0] = mState.blend.colorMaskRed;
1.1196 + params[1] = mState.blend.colorMaskGreen;
1.1197 + params[2] = mState.blend.colorMaskBlue;
1.1198 + params[3] = mState.blend.colorMaskAlpha;
1.1199 + break;
1.1200 + case GL_CULL_FACE: *params = mState.rasterizer.cullFace; break;
1.1201 + case GL_POLYGON_OFFSET_FILL: *params = mState.rasterizer.polygonOffsetFill; break;
1.1202 + case GL_SAMPLE_ALPHA_TO_COVERAGE: *params = mState.blend.sampleAlphaToCoverage; break;
1.1203 + case GL_SAMPLE_COVERAGE: *params = mState.sampleCoverage; break;
1.1204 + case GL_SCISSOR_TEST: *params = mState.scissorTest; break;
1.1205 + case GL_STENCIL_TEST: *params = mState.depthStencil.stencilTest; break;
1.1206 + case GL_DEPTH_TEST: *params = mState.depthStencil.depthTest; break;
1.1207 + case GL_BLEND: *params = mState.blend.blend; break;
1.1208 + case GL_DITHER: *params = mState.blend.dither; break;
1.1209 + case GL_CONTEXT_ROBUST_ACCESS_EXT: *params = mRobustAccess ? GL_TRUE : GL_FALSE; break;
1.1210 + default:
1.1211 + return false;
1.1212 + }
1.1213 +
1.1214 + return true;
1.1215 +}
1.1216 +
1.1217 +bool Context::getFloatv(GLenum pname, GLfloat *params)
1.1218 +{
1.1219 + // Please note: DEPTH_CLEAR_VALUE is included in our internal getFloatv implementation
1.1220 + // because it is stored as a float, despite the fact that the GL ES 2.0 spec names
1.1221 + // GetIntegerv as its native query function. As it would require conversion in any
1.1222 + // case, this should make no difference to the calling application.
1.1223 + switch (pname)
1.1224 + {
1.1225 + case GL_LINE_WIDTH: *params = mState.lineWidth; break;
1.1226 + case GL_SAMPLE_COVERAGE_VALUE: *params = mState.sampleCoverageValue; break;
1.1227 + case GL_DEPTH_CLEAR_VALUE: *params = mState.depthClearValue; break;
1.1228 + case GL_POLYGON_OFFSET_FACTOR: *params = mState.rasterizer.polygonOffsetFactor; break;
1.1229 + case GL_POLYGON_OFFSET_UNITS: *params = mState.rasterizer.polygonOffsetUnits; break;
1.1230 + case GL_ALIASED_LINE_WIDTH_RANGE:
1.1231 + params[0] = gl::ALIASED_LINE_WIDTH_RANGE_MIN;
1.1232 + params[1] = gl::ALIASED_LINE_WIDTH_RANGE_MAX;
1.1233 + break;
1.1234 + case GL_ALIASED_POINT_SIZE_RANGE:
1.1235 + params[0] = gl::ALIASED_POINT_SIZE_RANGE_MIN;
1.1236 + params[1] = getMaximumPointSize();
1.1237 + break;
1.1238 + case GL_DEPTH_RANGE:
1.1239 + params[0] = mState.zNear;
1.1240 + params[1] = mState.zFar;
1.1241 + break;
1.1242 + case GL_COLOR_CLEAR_VALUE:
1.1243 + params[0] = mState.colorClearValue.red;
1.1244 + params[1] = mState.colorClearValue.green;
1.1245 + params[2] = mState.colorClearValue.blue;
1.1246 + params[3] = mState.colorClearValue.alpha;
1.1247 + break;
1.1248 + case GL_BLEND_COLOR:
1.1249 + params[0] = mState.blendColor.red;
1.1250 + params[1] = mState.blendColor.green;
1.1251 + params[2] = mState.blendColor.blue;
1.1252 + params[3] = mState.blendColor.alpha;
1.1253 + break;
1.1254 + case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT:
1.1255 + if (!supportsTextureFilterAnisotropy())
1.1256 + {
1.1257 + return false;
1.1258 + }
1.1259 + *params = mMaxTextureAnisotropy;
1.1260 + break;
1.1261 + default:
1.1262 + return false;
1.1263 + }
1.1264 +
1.1265 + return true;
1.1266 +}
1.1267 +
1.1268 +bool Context::getIntegerv(GLenum pname, GLint *params)
1.1269 +{
1.1270 + if (pname >= GL_DRAW_BUFFER0_EXT && pname <= GL_DRAW_BUFFER15_EXT)
1.1271 + {
1.1272 + unsigned int colorAttachment = (pname - GL_DRAW_BUFFER0_EXT);
1.1273 +
1.1274 + if (colorAttachment >= mRenderer->getMaxRenderTargets())
1.1275 + {
1.1276 + // return true to stop further operation in the parent call
1.1277 + return gl::error(GL_INVALID_OPERATION, true);
1.1278 + }
1.1279 +
1.1280 + Framebuffer *framebuffer = getDrawFramebuffer();
1.1281 +
1.1282 + *params = framebuffer->getDrawBufferState(colorAttachment);
1.1283 + return true;
1.1284 + }
1.1285 +
1.1286 + // Please note: DEPTH_CLEAR_VALUE is not included in our internal getIntegerv implementation
1.1287 + // because it is stored as a float, despite the fact that the GL ES 2.0 spec names
1.1288 + // GetIntegerv as its native query function. As it would require conversion in any
1.1289 + // case, this should make no difference to the calling application. You may find it in
1.1290 + // Context::getFloatv.
1.1291 + switch (pname)
1.1292 + {
1.1293 + case GL_MAX_VERTEX_ATTRIBS: *params = gl::MAX_VERTEX_ATTRIBS; break;
1.1294 + case GL_MAX_VERTEX_UNIFORM_VECTORS: *params = mRenderer->getMaxVertexUniformVectors(); break;
1.1295 + case GL_MAX_VARYING_VECTORS: *params = mRenderer->getMaxVaryingVectors(); break;
1.1296 + case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: *params = mRenderer->getMaxCombinedTextureImageUnits(); break;
1.1297 + case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS: *params = mRenderer->getMaxVertexTextureImageUnits(); break;
1.1298 + case GL_MAX_TEXTURE_IMAGE_UNITS: *params = gl::MAX_TEXTURE_IMAGE_UNITS; break;
1.1299 + case GL_MAX_FRAGMENT_UNIFORM_VECTORS: *params = mRenderer->getMaxFragmentUniformVectors(); break;
1.1300 + case GL_MAX_RENDERBUFFER_SIZE: *params = getMaximumRenderbufferDimension(); break;
1.1301 + case GL_MAX_COLOR_ATTACHMENTS_EXT: *params = mRenderer->getMaxRenderTargets(); break;
1.1302 + case GL_MAX_DRAW_BUFFERS_EXT: *params = mRenderer->getMaxRenderTargets(); break;
1.1303 + case GL_NUM_SHADER_BINARY_FORMATS: *params = 0; break;
1.1304 + case GL_SHADER_BINARY_FORMATS: /* no shader binary formats are supported */ break;
1.1305 + case GL_ARRAY_BUFFER_BINDING: *params = mState.arrayBuffer.id(); break;
1.1306 + case GL_ELEMENT_ARRAY_BUFFER_BINDING: *params = mState.elementArrayBuffer.id(); break;
1.1307 + //case GL_FRAMEBUFFER_BINDING: // now equivalent to GL_DRAW_FRAMEBUFFER_BINDING_ANGLE
1.1308 + case GL_DRAW_FRAMEBUFFER_BINDING_ANGLE: *params = mState.drawFramebuffer; break;
1.1309 + case GL_READ_FRAMEBUFFER_BINDING_ANGLE: *params = mState.readFramebuffer; break;
1.1310 + case GL_RENDERBUFFER_BINDING: *params = mState.renderbuffer.id(); break;
1.1311 + case GL_CURRENT_PROGRAM: *params = mState.currentProgram; break;
1.1312 + case GL_PACK_ALIGNMENT: *params = mState.packAlignment; break;
1.1313 + case GL_PACK_REVERSE_ROW_ORDER_ANGLE: *params = mState.packReverseRowOrder; break;
1.1314 + case GL_UNPACK_ALIGNMENT: *params = mState.unpackAlignment; break;
1.1315 + case GL_GENERATE_MIPMAP_HINT: *params = mState.generateMipmapHint; break;
1.1316 + case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES: *params = mState.fragmentShaderDerivativeHint; break;
1.1317 + case GL_ACTIVE_TEXTURE: *params = (mState.activeSampler + GL_TEXTURE0); break;
1.1318 + case GL_STENCIL_FUNC: *params = mState.depthStencil.stencilFunc; break;
1.1319 + case GL_STENCIL_REF: *params = mState.stencilRef; break;
1.1320 + case GL_STENCIL_VALUE_MASK: *params = mState.depthStencil.stencilMask; break;
1.1321 + case GL_STENCIL_BACK_FUNC: *params = mState.depthStencil.stencilBackFunc; break;
1.1322 + case GL_STENCIL_BACK_REF: *params = mState.stencilBackRef; break;
1.1323 + case GL_STENCIL_BACK_VALUE_MASK: *params = mState.depthStencil.stencilBackMask; break;
1.1324 + case GL_STENCIL_FAIL: *params = mState.depthStencil.stencilFail; break;
1.1325 + case GL_STENCIL_PASS_DEPTH_FAIL: *params = mState.depthStencil.stencilPassDepthFail; break;
1.1326 + case GL_STENCIL_PASS_DEPTH_PASS: *params = mState.depthStencil.stencilPassDepthPass; break;
1.1327 + case GL_STENCIL_BACK_FAIL: *params = mState.depthStencil.stencilBackFail; break;
1.1328 + case GL_STENCIL_BACK_PASS_DEPTH_FAIL: *params = mState.depthStencil.stencilBackPassDepthFail; break;
1.1329 + case GL_STENCIL_BACK_PASS_DEPTH_PASS: *params = mState.depthStencil.stencilBackPassDepthPass; break;
1.1330 + case GL_DEPTH_FUNC: *params = mState.depthStencil.depthFunc; break;
1.1331 + case GL_BLEND_SRC_RGB: *params = mState.blend.sourceBlendRGB; break;
1.1332 + case GL_BLEND_SRC_ALPHA: *params = mState.blend.sourceBlendAlpha; break;
1.1333 + case GL_BLEND_DST_RGB: *params = mState.blend.destBlendRGB; break;
1.1334 + case GL_BLEND_DST_ALPHA: *params = mState.blend.destBlendAlpha; break;
1.1335 + case GL_BLEND_EQUATION_RGB: *params = mState.blend.blendEquationRGB; break;
1.1336 + case GL_BLEND_EQUATION_ALPHA: *params = mState.blend.blendEquationAlpha; break;
1.1337 + case GL_STENCIL_WRITEMASK: *params = mState.depthStencil.stencilWritemask; break;
1.1338 + case GL_STENCIL_BACK_WRITEMASK: *params = mState.depthStencil.stencilBackWritemask; break;
1.1339 + case GL_STENCIL_CLEAR_VALUE: *params = mState.stencilClearValue; break;
1.1340 + case GL_SUBPIXEL_BITS: *params = 4; break;
1.1341 + case GL_MAX_TEXTURE_SIZE: *params = getMaximumTextureDimension(); break;
1.1342 + case GL_MAX_CUBE_MAP_TEXTURE_SIZE: *params = getMaximumCubeTextureDimension(); break;
1.1343 + case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
1.1344 + params[0] = mNumCompressedTextureFormats;
1.1345 + break;
1.1346 + case GL_MAX_SAMPLES_ANGLE:
1.1347 + {
1.1348 + GLsizei maxSamples = getMaxSupportedSamples();
1.1349 + if (maxSamples != 0)
1.1350 + {
1.1351 + *params = maxSamples;
1.1352 + }
1.1353 + else
1.1354 + {
1.1355 + return false;
1.1356 + }
1.1357 +
1.1358 + break;
1.1359 + }
1.1360 + case GL_SAMPLE_BUFFERS:
1.1361 + case GL_SAMPLES:
1.1362 + {
1.1363 + gl::Framebuffer *framebuffer = getDrawFramebuffer();
1.1364 + if (framebuffer->completeness() == GL_FRAMEBUFFER_COMPLETE)
1.1365 + {
1.1366 + switch (pname)
1.1367 + {
1.1368 + case GL_SAMPLE_BUFFERS:
1.1369 + if (framebuffer->getSamples() != 0)
1.1370 + {
1.1371 + *params = 1;
1.1372 + }
1.1373 + else
1.1374 + {
1.1375 + *params = 0;
1.1376 + }
1.1377 + break;
1.1378 + case GL_SAMPLES:
1.1379 + *params = framebuffer->getSamples();
1.1380 + break;
1.1381 + }
1.1382 + }
1.1383 + else
1.1384 + {
1.1385 + *params = 0;
1.1386 + }
1.1387 + }
1.1388 + break;
1.1389 + case GL_IMPLEMENTATION_COLOR_READ_TYPE:
1.1390 + case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
1.1391 + {
1.1392 + GLenum format, type;
1.1393 + if (getCurrentReadFormatType(&format, &type))
1.1394 + {
1.1395 + if (pname == GL_IMPLEMENTATION_COLOR_READ_FORMAT)
1.1396 + *params = format;
1.1397 + else
1.1398 + *params = type;
1.1399 + }
1.1400 + }
1.1401 + break;
1.1402 + case GL_MAX_VIEWPORT_DIMS:
1.1403 + {
1.1404 + params[0] = mMaxViewportDimension;
1.1405 + params[1] = mMaxViewportDimension;
1.1406 + }
1.1407 + break;
1.1408 + case GL_COMPRESSED_TEXTURE_FORMATS:
1.1409 + {
1.1410 + if (supportsDXT1Textures())
1.1411 + {
1.1412 + *params++ = GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
1.1413 + *params++ = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1.1414 + }
1.1415 + if (supportsDXT3Textures())
1.1416 + {
1.1417 + *params++ = GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE;
1.1418 + }
1.1419 + if (supportsDXT5Textures())
1.1420 + {
1.1421 + *params++ = GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE;
1.1422 + }
1.1423 + }
1.1424 + break;
1.1425 + case GL_VIEWPORT:
1.1426 + params[0] = mState.viewport.x;
1.1427 + params[1] = mState.viewport.y;
1.1428 + params[2] = mState.viewport.width;
1.1429 + params[3] = mState.viewport.height;
1.1430 + break;
1.1431 + case GL_SCISSOR_BOX:
1.1432 + params[0] = mState.scissor.x;
1.1433 + params[1] = mState.scissor.y;
1.1434 + params[2] = mState.scissor.width;
1.1435 + params[3] = mState.scissor.height;
1.1436 + break;
1.1437 + case GL_CULL_FACE_MODE: *params = mState.rasterizer.cullMode; break;
1.1438 + case GL_FRONT_FACE: *params = mState.rasterizer.frontFace; break;
1.1439 + case GL_RED_BITS:
1.1440 + case GL_GREEN_BITS:
1.1441 + case GL_BLUE_BITS:
1.1442 + case GL_ALPHA_BITS:
1.1443 + {
1.1444 + gl::Framebuffer *framebuffer = getDrawFramebuffer();
1.1445 + gl::Renderbuffer *colorbuffer = framebuffer->getFirstColorbuffer();
1.1446 +
1.1447 + if (colorbuffer)
1.1448 + {
1.1449 + switch (pname)
1.1450 + {
1.1451 + case GL_RED_BITS: *params = colorbuffer->getRedSize(); break;
1.1452 + case GL_GREEN_BITS: *params = colorbuffer->getGreenSize(); break;
1.1453 + case GL_BLUE_BITS: *params = colorbuffer->getBlueSize(); break;
1.1454 + case GL_ALPHA_BITS: *params = colorbuffer->getAlphaSize(); break;
1.1455 + }
1.1456 + }
1.1457 + else
1.1458 + {
1.1459 + *params = 0;
1.1460 + }
1.1461 + }
1.1462 + break;
1.1463 + case GL_DEPTH_BITS:
1.1464 + {
1.1465 + gl::Framebuffer *framebuffer = getDrawFramebuffer();
1.1466 + gl::Renderbuffer *depthbuffer = framebuffer->getDepthbuffer();
1.1467 +
1.1468 + if (depthbuffer)
1.1469 + {
1.1470 + *params = depthbuffer->getDepthSize();
1.1471 + }
1.1472 + else
1.1473 + {
1.1474 + *params = 0;
1.1475 + }
1.1476 + }
1.1477 + break;
1.1478 + case GL_STENCIL_BITS:
1.1479 + {
1.1480 + gl::Framebuffer *framebuffer = getDrawFramebuffer();
1.1481 + gl::Renderbuffer *stencilbuffer = framebuffer->getStencilbuffer();
1.1482 +
1.1483 + if (stencilbuffer)
1.1484 + {
1.1485 + *params = stencilbuffer->getStencilSize();
1.1486 + }
1.1487 + else
1.1488 + {
1.1489 + *params = 0;
1.1490 + }
1.1491 + }
1.1492 + break;
1.1493 + case GL_TEXTURE_BINDING_2D:
1.1494 + {
1.1495 + if (mState.activeSampler > mRenderer->getMaxCombinedTextureImageUnits() - 1)
1.1496 + {
1.1497 + gl::error(GL_INVALID_OPERATION);
1.1498 + return false;
1.1499 + }
1.1500 +
1.1501 + *params = mState.samplerTexture[TEXTURE_2D][mState.activeSampler].id();
1.1502 + }
1.1503 + break;
1.1504 + case GL_TEXTURE_BINDING_CUBE_MAP:
1.1505 + {
1.1506 + if (mState.activeSampler > mRenderer->getMaxCombinedTextureImageUnits() - 1)
1.1507 + {
1.1508 + gl::error(GL_INVALID_OPERATION);
1.1509 + return false;
1.1510 + }
1.1511 +
1.1512 + *params = mState.samplerTexture[TEXTURE_CUBE][mState.activeSampler].id();
1.1513 + }
1.1514 + break;
1.1515 + case GL_RESET_NOTIFICATION_STRATEGY_EXT:
1.1516 + *params = mResetStrategy;
1.1517 + break;
1.1518 + case GL_NUM_PROGRAM_BINARY_FORMATS_OES:
1.1519 + *params = 1;
1.1520 + break;
1.1521 + case GL_PROGRAM_BINARY_FORMATS_OES:
1.1522 + *params = GL_PROGRAM_BINARY_ANGLE;
1.1523 + break;
1.1524 + default:
1.1525 + return false;
1.1526 + }
1.1527 +
1.1528 + return true;
1.1529 +}
1.1530 +
1.1531 +bool Context::getQueryParameterInfo(GLenum pname, GLenum *type, unsigned int *numParams)
1.1532 +{
1.1533 + if (pname >= GL_DRAW_BUFFER0_EXT && pname <= GL_DRAW_BUFFER15_EXT)
1.1534 + {
1.1535 + *type = GL_INT;
1.1536 + *numParams = 1;
1.1537 + return true;
1.1538 + }
1.1539 +
1.1540 + // Please note: the query type returned for DEPTH_CLEAR_VALUE in this implementation
1.1541 + // is FLOAT rather than INT, as would be suggested by the GL ES 2.0 spec. This is due
1.1542 + // to the fact that it is stored internally as a float, and so would require conversion
1.1543 + // if returned from Context::getIntegerv. Since this conversion is already implemented
1.1544 + // in the case that one calls glGetIntegerv to retrieve a float-typed state variable, we
1.1545 + // place DEPTH_CLEAR_VALUE with the floats. This should make no difference to the calling
1.1546 + // application.
1.1547 + switch (pname)
1.1548 + {
1.1549 + case GL_COMPRESSED_TEXTURE_FORMATS:
1.1550 + {
1.1551 + *type = GL_INT;
1.1552 + *numParams = mNumCompressedTextureFormats;
1.1553 + }
1.1554 + break;
1.1555 + case GL_SHADER_BINARY_FORMATS:
1.1556 + {
1.1557 + *type = GL_INT;
1.1558 + *numParams = 0;
1.1559 + }
1.1560 + break;
1.1561 + case GL_MAX_VERTEX_ATTRIBS:
1.1562 + case GL_MAX_VERTEX_UNIFORM_VECTORS:
1.1563 + case GL_MAX_VARYING_VECTORS:
1.1564 + case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
1.1565 + case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
1.1566 + case GL_MAX_TEXTURE_IMAGE_UNITS:
1.1567 + case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
1.1568 + case GL_MAX_RENDERBUFFER_SIZE:
1.1569 + case GL_MAX_COLOR_ATTACHMENTS_EXT:
1.1570 + case GL_MAX_DRAW_BUFFERS_EXT:
1.1571 + case GL_NUM_SHADER_BINARY_FORMATS:
1.1572 + case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
1.1573 + case GL_ARRAY_BUFFER_BINDING:
1.1574 + case GL_FRAMEBUFFER_BINDING:
1.1575 + case GL_RENDERBUFFER_BINDING:
1.1576 + case GL_CURRENT_PROGRAM:
1.1577 + case GL_PACK_ALIGNMENT:
1.1578 + case GL_PACK_REVERSE_ROW_ORDER_ANGLE:
1.1579 + case GL_UNPACK_ALIGNMENT:
1.1580 + case GL_GENERATE_MIPMAP_HINT:
1.1581 + case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
1.1582 + case GL_RED_BITS:
1.1583 + case GL_GREEN_BITS:
1.1584 + case GL_BLUE_BITS:
1.1585 + case GL_ALPHA_BITS:
1.1586 + case GL_DEPTH_BITS:
1.1587 + case GL_STENCIL_BITS:
1.1588 + case GL_ELEMENT_ARRAY_BUFFER_BINDING:
1.1589 + case GL_CULL_FACE_MODE:
1.1590 + case GL_FRONT_FACE:
1.1591 + case GL_ACTIVE_TEXTURE:
1.1592 + case GL_STENCIL_FUNC:
1.1593 + case GL_STENCIL_VALUE_MASK:
1.1594 + case GL_STENCIL_REF:
1.1595 + case GL_STENCIL_FAIL:
1.1596 + case GL_STENCIL_PASS_DEPTH_FAIL:
1.1597 + case GL_STENCIL_PASS_DEPTH_PASS:
1.1598 + case GL_STENCIL_BACK_FUNC:
1.1599 + case GL_STENCIL_BACK_VALUE_MASK:
1.1600 + case GL_STENCIL_BACK_REF:
1.1601 + case GL_STENCIL_BACK_FAIL:
1.1602 + case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
1.1603 + case GL_STENCIL_BACK_PASS_DEPTH_PASS:
1.1604 + case GL_DEPTH_FUNC:
1.1605 + case GL_BLEND_SRC_RGB:
1.1606 + case GL_BLEND_SRC_ALPHA:
1.1607 + case GL_BLEND_DST_RGB:
1.1608 + case GL_BLEND_DST_ALPHA:
1.1609 + case GL_BLEND_EQUATION_RGB:
1.1610 + case GL_BLEND_EQUATION_ALPHA:
1.1611 + case GL_STENCIL_WRITEMASK:
1.1612 + case GL_STENCIL_BACK_WRITEMASK:
1.1613 + case GL_STENCIL_CLEAR_VALUE:
1.1614 + case GL_SUBPIXEL_BITS:
1.1615 + case GL_MAX_TEXTURE_SIZE:
1.1616 + case GL_MAX_CUBE_MAP_TEXTURE_SIZE:
1.1617 + case GL_SAMPLE_BUFFERS:
1.1618 + case GL_SAMPLES:
1.1619 + case GL_IMPLEMENTATION_COLOR_READ_TYPE:
1.1620 + case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
1.1621 + case GL_TEXTURE_BINDING_2D:
1.1622 + case GL_TEXTURE_BINDING_CUBE_MAP:
1.1623 + case GL_RESET_NOTIFICATION_STRATEGY_EXT:
1.1624 + case GL_NUM_PROGRAM_BINARY_FORMATS_OES:
1.1625 + case GL_PROGRAM_BINARY_FORMATS_OES:
1.1626 + {
1.1627 + *type = GL_INT;
1.1628 + *numParams = 1;
1.1629 + }
1.1630 + break;
1.1631 + case GL_MAX_SAMPLES_ANGLE:
1.1632 + {
1.1633 + if (getMaxSupportedSamples() != 0)
1.1634 + {
1.1635 + *type = GL_INT;
1.1636 + *numParams = 1;
1.1637 + }
1.1638 + else
1.1639 + {
1.1640 + return false;
1.1641 + }
1.1642 + }
1.1643 + break;
1.1644 + case GL_MAX_VIEWPORT_DIMS:
1.1645 + {
1.1646 + *type = GL_INT;
1.1647 + *numParams = 2;
1.1648 + }
1.1649 + break;
1.1650 + case GL_VIEWPORT:
1.1651 + case GL_SCISSOR_BOX:
1.1652 + {
1.1653 + *type = GL_INT;
1.1654 + *numParams = 4;
1.1655 + }
1.1656 + break;
1.1657 + case GL_SHADER_COMPILER:
1.1658 + case GL_SAMPLE_COVERAGE_INVERT:
1.1659 + case GL_DEPTH_WRITEMASK:
1.1660 + case GL_CULL_FACE: // CULL_FACE through DITHER are natural to IsEnabled,
1.1661 + case GL_POLYGON_OFFSET_FILL: // but can be retrieved through the Get{Type}v queries.
1.1662 + case GL_SAMPLE_ALPHA_TO_COVERAGE: // For this purpose, they are treated here as bool-natural
1.1663 + case GL_SAMPLE_COVERAGE:
1.1664 + case GL_SCISSOR_TEST:
1.1665 + case GL_STENCIL_TEST:
1.1666 + case GL_DEPTH_TEST:
1.1667 + case GL_BLEND:
1.1668 + case GL_DITHER:
1.1669 + case GL_CONTEXT_ROBUST_ACCESS_EXT:
1.1670 + {
1.1671 + *type = GL_BOOL;
1.1672 + *numParams = 1;
1.1673 + }
1.1674 + break;
1.1675 + case GL_COLOR_WRITEMASK:
1.1676 + {
1.1677 + *type = GL_BOOL;
1.1678 + *numParams = 4;
1.1679 + }
1.1680 + break;
1.1681 + case GL_POLYGON_OFFSET_FACTOR:
1.1682 + case GL_POLYGON_OFFSET_UNITS:
1.1683 + case GL_SAMPLE_COVERAGE_VALUE:
1.1684 + case GL_DEPTH_CLEAR_VALUE:
1.1685 + case GL_LINE_WIDTH:
1.1686 + {
1.1687 + *type = GL_FLOAT;
1.1688 + *numParams = 1;
1.1689 + }
1.1690 + break;
1.1691 + case GL_ALIASED_LINE_WIDTH_RANGE:
1.1692 + case GL_ALIASED_POINT_SIZE_RANGE:
1.1693 + case GL_DEPTH_RANGE:
1.1694 + {
1.1695 + *type = GL_FLOAT;
1.1696 + *numParams = 2;
1.1697 + }
1.1698 + break;
1.1699 + case GL_COLOR_CLEAR_VALUE:
1.1700 + case GL_BLEND_COLOR:
1.1701 + {
1.1702 + *type = GL_FLOAT;
1.1703 + *numParams = 4;
1.1704 + }
1.1705 + break;
1.1706 + case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT:
1.1707 + if (!supportsTextureFilterAnisotropy())
1.1708 + {
1.1709 + return false;
1.1710 + }
1.1711 + *type = GL_FLOAT;
1.1712 + *numParams = 1;
1.1713 + break;
1.1714 + default:
1.1715 + return false;
1.1716 + }
1.1717 +
1.1718 + return true;
1.1719 +}
1.1720 +
1.1721 +// Applies the render target surface, depth stencil surface, viewport rectangle and
1.1722 +// scissor rectangle to the renderer
1.1723 +bool Context::applyRenderTarget(GLenum drawMode, bool ignoreViewport)
1.1724 +{
1.1725 + Framebuffer *framebufferObject = getDrawFramebuffer();
1.1726 +
1.1727 + if (!framebufferObject || framebufferObject->completeness() != GL_FRAMEBUFFER_COMPLETE)
1.1728 + {
1.1729 + return gl::error(GL_INVALID_FRAMEBUFFER_OPERATION, false);
1.1730 + }
1.1731 +
1.1732 + mRenderer->applyRenderTarget(framebufferObject);
1.1733 +
1.1734 + if (!mRenderer->setViewport(mState.viewport, mState.zNear, mState.zFar, drawMode, mState.rasterizer.frontFace,
1.1735 + ignoreViewport))
1.1736 + {
1.1737 + return false;
1.1738 + }
1.1739 +
1.1740 + mRenderer->setScissorRectangle(mState.scissor, mState.scissorTest);
1.1741 +
1.1742 + return true;
1.1743 +}
1.1744 +
1.1745 +// Applies the fixed-function state (culling, depth test, alpha blending, stenciling, etc) to the Direct3D 9 device
1.1746 +void Context::applyState(GLenum drawMode)
1.1747 +{
1.1748 + Framebuffer *framebufferObject = getDrawFramebuffer();
1.1749 + int samples = framebufferObject->getSamples();
1.1750 +
1.1751 + mState.rasterizer.pointDrawMode = (drawMode == GL_POINTS);
1.1752 + mState.rasterizer.multiSample = (samples != 0);
1.1753 + mRenderer->setRasterizerState(mState.rasterizer);
1.1754 +
1.1755 + unsigned int mask = 0;
1.1756 + if (mState.sampleCoverage)
1.1757 + {
1.1758 + if (mState.sampleCoverageValue != 0)
1.1759 + {
1.1760 +
1.1761 + float threshold = 0.5f;
1.1762 +
1.1763 + for (int i = 0; i < samples; ++i)
1.1764 + {
1.1765 + mask <<= 1;
1.1766 +
1.1767 + if ((i + 1) * mState.sampleCoverageValue >= threshold)
1.1768 + {
1.1769 + threshold += 1.0f;
1.1770 + mask |= 1;
1.1771 + }
1.1772 + }
1.1773 + }
1.1774 +
1.1775 + if (mState.sampleCoverageInvert)
1.1776 + {
1.1777 + mask = ~mask;
1.1778 + }
1.1779 + }
1.1780 + else
1.1781 + {
1.1782 + mask = 0xFFFFFFFF;
1.1783 + }
1.1784 + mRenderer->setBlendState(mState.blend, mState.blendColor, mask);
1.1785 +
1.1786 + mRenderer->setDepthStencilState(mState.depthStencil, mState.stencilRef, mState.stencilBackRef,
1.1787 + mState.rasterizer.frontFace == GL_CCW);
1.1788 +}
1.1789 +
1.1790 +// Applies the shaders and shader constants to the Direct3D 9 device
1.1791 +void Context::applyShaders()
1.1792 +{
1.1793 + ProgramBinary *programBinary = getCurrentProgramBinary();
1.1794 +
1.1795 + mRenderer->applyShaders(programBinary);
1.1796 +
1.1797 + programBinary->applyUniforms();
1.1798 +}
1.1799 +
1.1800 +// Applies the textures and sampler states to the Direct3D 9 device
1.1801 +void Context::applyTextures()
1.1802 +{
1.1803 + applyTextures(SAMPLER_PIXEL);
1.1804 +
1.1805 + if (mSupportsVertexTexture)
1.1806 + {
1.1807 + applyTextures(SAMPLER_VERTEX);
1.1808 + }
1.1809 +}
1.1810 +
1.1811 +// For each Direct3D 9 sampler of either the pixel or vertex stage,
1.1812 +// looks up the corresponding OpenGL texture image unit and texture type,
1.1813 +// and sets the texture and its addressing/filtering state (or NULL when inactive).
1.1814 +void Context::applyTextures(SamplerType type)
1.1815 +{
1.1816 + ProgramBinary *programBinary = getCurrentProgramBinary();
1.1817 +
1.1818 + // Range of Direct3D samplers of given sampler type
1.1819 + int samplerCount = (type == SAMPLER_PIXEL) ? MAX_TEXTURE_IMAGE_UNITS : mRenderer->getMaxVertexTextureImageUnits();
1.1820 + int samplerRange = programBinary->getUsedSamplerRange(type);
1.1821 +
1.1822 + for (int samplerIndex = 0; samplerIndex < samplerRange; samplerIndex++)
1.1823 + {
1.1824 + int textureUnit = programBinary->getSamplerMapping(type, samplerIndex); // OpenGL texture image unit index
1.1825 +
1.1826 + if (textureUnit != -1)
1.1827 + {
1.1828 + TextureType textureType = programBinary->getSamplerTextureType(type, samplerIndex);
1.1829 + Texture *texture = getSamplerTexture(textureUnit, textureType);
1.1830 +
1.1831 + if (texture->isSamplerComplete())
1.1832 + {
1.1833 + SamplerState samplerState;
1.1834 + texture->getSamplerState(&samplerState);
1.1835 + mRenderer->setSamplerState(type, samplerIndex, samplerState);
1.1836 +
1.1837 + mRenderer->setTexture(type, samplerIndex, texture);
1.1838 +
1.1839 + texture->resetDirty();
1.1840 + }
1.1841 + else
1.1842 + {
1.1843 + mRenderer->setTexture(type, samplerIndex, getIncompleteTexture(textureType));
1.1844 + }
1.1845 + }
1.1846 + else
1.1847 + {
1.1848 + mRenderer->setTexture(type, samplerIndex, NULL);
1.1849 + }
1.1850 + }
1.1851 +
1.1852 + for (int samplerIndex = samplerRange; samplerIndex < samplerCount; samplerIndex++)
1.1853 + {
1.1854 + mRenderer->setTexture(type, samplerIndex, NULL);
1.1855 + }
1.1856 +}
1.1857 +
1.1858 +void Context::readPixels(GLint x, GLint y, GLsizei width, GLsizei height,
1.1859 + GLenum format, GLenum type, GLsizei *bufSize, void* pixels)
1.1860 +{
1.1861 + Framebuffer *framebuffer = getReadFramebuffer();
1.1862 +
1.1863 + if (framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE)
1.1864 + {
1.1865 + return gl::error(GL_INVALID_FRAMEBUFFER_OPERATION);
1.1866 + }
1.1867 +
1.1868 + if (getReadFramebufferHandle() != 0 && framebuffer->getSamples() != 0)
1.1869 + {
1.1870 + return gl::error(GL_INVALID_OPERATION);
1.1871 + }
1.1872 +
1.1873 + GLsizei outputPitch = ComputePitch(width, ConvertSizedInternalFormat(format, type), getPackAlignment());
1.1874 + // sized query sanity check
1.1875 + if (bufSize)
1.1876 + {
1.1877 + int requiredSize = outputPitch * height;
1.1878 + if (requiredSize > *bufSize)
1.1879 + {
1.1880 + return gl::error(GL_INVALID_OPERATION);
1.1881 + }
1.1882 + }
1.1883 +
1.1884 + mRenderer->readPixels(framebuffer, x, y, width, height, format, type, outputPitch, getPackReverseRowOrder(), getPackAlignment(), pixels);
1.1885 +}
1.1886 +
1.1887 +void Context::clear(GLbitfield mask)
1.1888 +{
1.1889 + Framebuffer *framebufferObject = getDrawFramebuffer();
1.1890 +
1.1891 + if (!framebufferObject || framebufferObject->completeness() != GL_FRAMEBUFFER_COMPLETE)
1.1892 + {
1.1893 + return gl::error(GL_INVALID_FRAMEBUFFER_OPERATION);
1.1894 + }
1.1895 +
1.1896 + DWORD flags = 0;
1.1897 + GLbitfield finalMask = 0;
1.1898 +
1.1899 + if (mask & GL_COLOR_BUFFER_BIT)
1.1900 + {
1.1901 + mask &= ~GL_COLOR_BUFFER_BIT;
1.1902 +
1.1903 + if (framebufferObject->hasEnabledColorAttachment())
1.1904 + {
1.1905 + finalMask |= GL_COLOR_BUFFER_BIT;
1.1906 + }
1.1907 + }
1.1908 +
1.1909 + if (mask & GL_DEPTH_BUFFER_BIT)
1.1910 + {
1.1911 + mask &= ~GL_DEPTH_BUFFER_BIT;
1.1912 + if (mState.depthStencil.depthMask && framebufferObject->getDepthbufferType() != GL_NONE)
1.1913 + {
1.1914 + finalMask |= GL_DEPTH_BUFFER_BIT;
1.1915 + }
1.1916 + }
1.1917 +
1.1918 + if (mask & GL_STENCIL_BUFFER_BIT)
1.1919 + {
1.1920 + mask &= ~GL_STENCIL_BUFFER_BIT;
1.1921 + if (framebufferObject->getStencilbufferType() != GL_NONE)
1.1922 + {
1.1923 + rx::RenderTarget *depthStencil = framebufferObject->getStencilbuffer()->getDepthStencil();
1.1924 + if (!depthStencil)
1.1925 + {
1.1926 + ERR("Depth stencil pointer unexpectedly null.");
1.1927 + return;
1.1928 + }
1.1929 +
1.1930 + if (GetStencilSize(depthStencil->getActualFormat()) > 0)
1.1931 + {
1.1932 + finalMask |= GL_STENCIL_BUFFER_BIT;
1.1933 + }
1.1934 + }
1.1935 + }
1.1936 +
1.1937 + if (mask != 0)
1.1938 + {
1.1939 + return gl::error(GL_INVALID_VALUE);
1.1940 + }
1.1941 +
1.1942 + if (!applyRenderTarget(GL_TRIANGLES, true)) // Clips the clear to the scissor rectangle but not the viewport
1.1943 + {
1.1944 + return;
1.1945 + }
1.1946 +
1.1947 + ClearParameters clearParams;
1.1948 + clearParams.mask = finalMask;
1.1949 + clearParams.colorClearValue = mState.colorClearValue;
1.1950 + clearParams.colorMaskRed = mState.blend.colorMaskRed;
1.1951 + clearParams.colorMaskGreen = mState.blend.colorMaskGreen;
1.1952 + clearParams.colorMaskBlue = mState.blend.colorMaskBlue;
1.1953 + clearParams.colorMaskAlpha = mState.blend.colorMaskAlpha;
1.1954 + clearParams.depthClearValue = mState.depthClearValue;
1.1955 + clearParams.stencilClearValue = mState.stencilClearValue;
1.1956 + clearParams.stencilWriteMask = mState.depthStencil.stencilWritemask;
1.1957 +
1.1958 + mRenderer->clear(clearParams, framebufferObject);
1.1959 +}
1.1960 +
1.1961 +void Context::drawArrays(GLenum mode, GLint first, GLsizei count, GLsizei instances)
1.1962 +{
1.1963 + if (!mState.currentProgram)
1.1964 + {
1.1965 + return gl::error(GL_INVALID_OPERATION);
1.1966 + }
1.1967 +
1.1968 + if (!mRenderer->applyPrimitiveType(mode, count))
1.1969 + {
1.1970 + return;
1.1971 + }
1.1972 +
1.1973 + if (!applyRenderTarget(mode, false))
1.1974 + {
1.1975 + return;
1.1976 + }
1.1977 +
1.1978 + applyState(mode);
1.1979 +
1.1980 + ProgramBinary *programBinary = getCurrentProgramBinary();
1.1981 +
1.1982 + GLenum err = mRenderer->applyVertexBuffer(programBinary, mState.vertexAttribute, first, count, instances);
1.1983 + if (err != GL_NO_ERROR)
1.1984 + {
1.1985 + return gl::error(err);
1.1986 + }
1.1987 +
1.1988 + applyShaders();
1.1989 + applyTextures();
1.1990 +
1.1991 + if (!programBinary->validateSamplers(NULL))
1.1992 + {
1.1993 + return gl::error(GL_INVALID_OPERATION);
1.1994 + }
1.1995 +
1.1996 + if (!skipDraw(mode))
1.1997 + {
1.1998 + mRenderer->drawArrays(mode, count, instances);
1.1999 + }
1.2000 +}
1.2001 +
1.2002 +void Context::drawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLsizei instances)
1.2003 +{
1.2004 + if (!mState.currentProgram)
1.2005 + {
1.2006 + return gl::error(GL_INVALID_OPERATION);
1.2007 + }
1.2008 +
1.2009 + if (!indices && !mState.elementArrayBuffer)
1.2010 + {
1.2011 + return gl::error(GL_INVALID_OPERATION);
1.2012 + }
1.2013 +
1.2014 + if (!mRenderer->applyPrimitiveType(mode, count))
1.2015 + {
1.2016 + return;
1.2017 + }
1.2018 +
1.2019 + if (!applyRenderTarget(mode, false))
1.2020 + {
1.2021 + return;
1.2022 + }
1.2023 +
1.2024 + applyState(mode);
1.2025 +
1.2026 + rx::TranslatedIndexData indexInfo;
1.2027 + GLenum err = mRenderer->applyIndexBuffer(indices, mState.elementArrayBuffer.get(), count, mode, type, &indexInfo);
1.2028 + if (err != GL_NO_ERROR)
1.2029 + {
1.2030 + return gl::error(err);
1.2031 + }
1.2032 +
1.2033 + ProgramBinary *programBinary = getCurrentProgramBinary();
1.2034 +
1.2035 + GLsizei vertexCount = indexInfo.maxIndex - indexInfo.minIndex + 1;
1.2036 + err = mRenderer->applyVertexBuffer(programBinary, mState.vertexAttribute, indexInfo.minIndex, vertexCount, instances);
1.2037 + if (err != GL_NO_ERROR)
1.2038 + {
1.2039 + return gl::error(err);
1.2040 + }
1.2041 +
1.2042 + applyShaders();
1.2043 + applyTextures();
1.2044 +
1.2045 + if (!programBinary->validateSamplers(NULL))
1.2046 + {
1.2047 + return gl::error(GL_INVALID_OPERATION);
1.2048 + }
1.2049 +
1.2050 + if (!skipDraw(mode))
1.2051 + {
1.2052 + mRenderer->drawElements(mode, count, type, indices, mState.elementArrayBuffer.get(), indexInfo, instances);
1.2053 + }
1.2054 +}
1.2055 +
1.2056 +// Implements glFlush when block is false, glFinish when block is true
1.2057 +void Context::sync(bool block)
1.2058 +{
1.2059 + mRenderer->sync(block);
1.2060 +}
1.2061 +
1.2062 +void Context::recordInvalidEnum()
1.2063 +{
1.2064 + mInvalidEnum = true;
1.2065 +}
1.2066 +
1.2067 +void Context::recordInvalidValue()
1.2068 +{
1.2069 + mInvalidValue = true;
1.2070 +}
1.2071 +
1.2072 +void Context::recordInvalidOperation()
1.2073 +{
1.2074 + mInvalidOperation = true;
1.2075 +}
1.2076 +
1.2077 +void Context::recordOutOfMemory()
1.2078 +{
1.2079 + mOutOfMemory = true;
1.2080 +}
1.2081 +
1.2082 +void Context::recordInvalidFramebufferOperation()
1.2083 +{
1.2084 + mInvalidFramebufferOperation = true;
1.2085 +}
1.2086 +
1.2087 +// Get one of the recorded errors and clear its flag, if any.
1.2088 +// [OpenGL ES 2.0.24] section 2.5 page 13.
1.2089 +GLenum Context::getError()
1.2090 +{
1.2091 + if (mInvalidEnum)
1.2092 + {
1.2093 + mInvalidEnum = false;
1.2094 +
1.2095 + return GL_INVALID_ENUM;
1.2096 + }
1.2097 +
1.2098 + if (mInvalidValue)
1.2099 + {
1.2100 + mInvalidValue = false;
1.2101 +
1.2102 + return GL_INVALID_VALUE;
1.2103 + }
1.2104 +
1.2105 + if (mInvalidOperation)
1.2106 + {
1.2107 + mInvalidOperation = false;
1.2108 +
1.2109 + return GL_INVALID_OPERATION;
1.2110 + }
1.2111 +
1.2112 + if (mOutOfMemory)
1.2113 + {
1.2114 + mOutOfMemory = false;
1.2115 +
1.2116 + return GL_OUT_OF_MEMORY;
1.2117 + }
1.2118 +
1.2119 + if (mInvalidFramebufferOperation)
1.2120 + {
1.2121 + mInvalidFramebufferOperation = false;
1.2122 +
1.2123 + return GL_INVALID_FRAMEBUFFER_OPERATION;
1.2124 + }
1.2125 +
1.2126 + return GL_NO_ERROR;
1.2127 +}
1.2128 +
1.2129 +GLenum Context::getResetStatus()
1.2130 +{
1.2131 + if (mResetStatus == GL_NO_ERROR && !mContextLost)
1.2132 + {
1.2133 + // mResetStatus will be set by the markContextLost callback
1.2134 + // in the case a notification is sent
1.2135 + mRenderer->testDeviceLost(true);
1.2136 + }
1.2137 +
1.2138 + GLenum status = mResetStatus;
1.2139 +
1.2140 + if (mResetStatus != GL_NO_ERROR)
1.2141 + {
1.2142 + ASSERT(mContextLost);
1.2143 +
1.2144 + if (mRenderer->testDeviceResettable())
1.2145 + {
1.2146 + mResetStatus = GL_NO_ERROR;
1.2147 + }
1.2148 + }
1.2149 +
1.2150 + return status;
1.2151 +}
1.2152 +
1.2153 +bool Context::isResetNotificationEnabled()
1.2154 +{
1.2155 + return (mResetStrategy == GL_LOSE_CONTEXT_ON_RESET_EXT);
1.2156 +}
1.2157 +
1.2158 +int Context::getMajorShaderModel() const
1.2159 +{
1.2160 + return mMajorShaderModel;
1.2161 +}
1.2162 +
1.2163 +float Context::getMaximumPointSize() const
1.2164 +{
1.2165 + return mMaximumPointSize;
1.2166 +}
1.2167 +
1.2168 +unsigned int Context::getMaximumCombinedTextureImageUnits() const
1.2169 +{
1.2170 + return mRenderer->getMaxCombinedTextureImageUnits();
1.2171 +}
1.2172 +
1.2173 +int Context::getMaxSupportedSamples() const
1.2174 +{
1.2175 + return mRenderer->getMaxSupportedSamples();
1.2176 +}
1.2177 +
1.2178 +unsigned int Context::getMaximumRenderTargets() const
1.2179 +{
1.2180 + return mRenderer->getMaxRenderTargets();
1.2181 +}
1.2182 +
1.2183 +bool Context::supportsEventQueries() const
1.2184 +{
1.2185 + return mSupportsEventQueries;
1.2186 +}
1.2187 +
1.2188 +bool Context::supportsOcclusionQueries() const
1.2189 +{
1.2190 + return mSupportsOcclusionQueries;
1.2191 +}
1.2192 +
1.2193 +bool Context::supportsBGRATextures() const
1.2194 +{
1.2195 + return mSupportsBGRATextures;
1.2196 +}
1.2197 +
1.2198 +bool Context::supportsDXT1Textures() const
1.2199 +{
1.2200 + return mSupportsDXT1Textures;
1.2201 +}
1.2202 +
1.2203 +bool Context::supportsDXT3Textures() const
1.2204 +{
1.2205 + return mSupportsDXT3Textures;
1.2206 +}
1.2207 +
1.2208 +bool Context::supportsDXT5Textures() const
1.2209 +{
1.2210 + return mSupportsDXT5Textures;
1.2211 +}
1.2212 +
1.2213 +bool Context::supportsFloat32Textures() const
1.2214 +{
1.2215 + return mSupportsFloat32Textures;
1.2216 +}
1.2217 +
1.2218 +bool Context::supportsFloat32LinearFilter() const
1.2219 +{
1.2220 + return mSupportsFloat32LinearFilter;
1.2221 +}
1.2222 +
1.2223 +bool Context::supportsFloat32RenderableTextures() const
1.2224 +{
1.2225 + return mSupportsFloat32RenderableTextures;
1.2226 +}
1.2227 +
1.2228 +bool Context::supportsFloat16Textures() const
1.2229 +{
1.2230 + return mSupportsFloat16Textures;
1.2231 +}
1.2232 +
1.2233 +bool Context::supportsFloat16LinearFilter() const
1.2234 +{
1.2235 + return mSupportsFloat16LinearFilter;
1.2236 +}
1.2237 +
1.2238 +bool Context::supportsFloat16RenderableTextures() const
1.2239 +{
1.2240 + return mSupportsFloat16RenderableTextures;
1.2241 +}
1.2242 +
1.2243 +int Context::getMaximumRenderbufferDimension() const
1.2244 +{
1.2245 + return mMaxRenderbufferDimension;
1.2246 +}
1.2247 +
1.2248 +int Context::getMaximumTextureDimension() const
1.2249 +{
1.2250 + return mMaxTextureDimension;
1.2251 +}
1.2252 +
1.2253 +int Context::getMaximumCubeTextureDimension() const
1.2254 +{
1.2255 + return mMaxCubeTextureDimension;
1.2256 +}
1.2257 +
1.2258 +int Context::getMaximumTextureLevel() const
1.2259 +{
1.2260 + return mMaxTextureLevel;
1.2261 +}
1.2262 +
1.2263 +bool Context::supportsLuminanceTextures() const
1.2264 +{
1.2265 + return mSupportsLuminanceTextures;
1.2266 +}
1.2267 +
1.2268 +bool Context::supportsLuminanceAlphaTextures() const
1.2269 +{
1.2270 + return mSupportsLuminanceAlphaTextures;
1.2271 +}
1.2272 +
1.2273 +bool Context::supportsDepthTextures() const
1.2274 +{
1.2275 + return mSupportsDepthTextures;
1.2276 +}
1.2277 +
1.2278 +bool Context::supports32bitIndices() const
1.2279 +{
1.2280 + return mSupports32bitIndices;
1.2281 +}
1.2282 +
1.2283 +bool Context::supportsNonPower2Texture() const
1.2284 +{
1.2285 + return mSupportsNonPower2Texture;
1.2286 +}
1.2287 +
1.2288 +bool Context::supportsInstancing() const
1.2289 +{
1.2290 + return mSupportsInstancing;
1.2291 +}
1.2292 +
1.2293 +bool Context::supportsTextureFilterAnisotropy() const
1.2294 +{
1.2295 + return mSupportsTextureFilterAnisotropy;
1.2296 +}
1.2297 +
1.2298 +float Context::getTextureMaxAnisotropy() const
1.2299 +{
1.2300 + return mMaxTextureAnisotropy;
1.2301 +}
1.2302 +
1.2303 +bool Context::getCurrentReadFormatType(GLenum *format, GLenum *type)
1.2304 +{
1.2305 + Framebuffer *framebuffer = getReadFramebuffer();
1.2306 + if (!framebuffer || framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE)
1.2307 + {
1.2308 + return gl::error(GL_INVALID_OPERATION, false);
1.2309 + }
1.2310 +
1.2311 + Renderbuffer *renderbuffer = framebuffer->getReadColorbuffer();
1.2312 + if (!renderbuffer)
1.2313 + {
1.2314 + return gl::error(GL_INVALID_OPERATION, false);
1.2315 + }
1.2316 +
1.2317 + *format = gl::ExtractFormat(renderbuffer->getActualFormat());
1.2318 + *type = gl::ExtractType(renderbuffer->getActualFormat());
1.2319 +
1.2320 + return true;
1.2321 +}
1.2322 +
1.2323 +void Context::detachBuffer(GLuint buffer)
1.2324 +{
1.2325 + // [OpenGL ES 2.0.24] section 2.9 page 22:
1.2326 + // If a buffer object is deleted while it is bound, all bindings to that object in the current context
1.2327 + // (i.e. in the thread that called Delete-Buffers) are reset to zero.
1.2328 +
1.2329 + if (mState.arrayBuffer.id() == buffer)
1.2330 + {
1.2331 + mState.arrayBuffer.set(NULL);
1.2332 + }
1.2333 +
1.2334 + if (mState.elementArrayBuffer.id() == buffer)
1.2335 + {
1.2336 + mState.elementArrayBuffer.set(NULL);
1.2337 + }
1.2338 +
1.2339 + for (int attribute = 0; attribute < MAX_VERTEX_ATTRIBS; attribute++)
1.2340 + {
1.2341 + if (mState.vertexAttribute[attribute].mBoundBuffer.id() == buffer)
1.2342 + {
1.2343 + mState.vertexAttribute[attribute].mBoundBuffer.set(NULL);
1.2344 + }
1.2345 + }
1.2346 +}
1.2347 +
1.2348 +void Context::detachTexture(GLuint texture)
1.2349 +{
1.2350 + // [OpenGL ES 2.0.24] section 3.8 page 84:
1.2351 + // If a texture object is deleted, it is as if all texture units which are bound to that texture object are
1.2352 + // rebound to texture object zero
1.2353 +
1.2354 + for (int type = 0; type < TEXTURE_TYPE_COUNT; type++)
1.2355 + {
1.2356 + for (int sampler = 0; sampler < IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS; sampler++)
1.2357 + {
1.2358 + if (mState.samplerTexture[type][sampler].id() == texture)
1.2359 + {
1.2360 + mState.samplerTexture[type][sampler].set(NULL);
1.2361 + }
1.2362 + }
1.2363 + }
1.2364 +
1.2365 + // [OpenGL ES 2.0.24] section 4.4 page 112:
1.2366 + // If a texture object is deleted while its image is attached to the currently bound framebuffer, then it is
1.2367 + // as if FramebufferTexture2D had been called, with a texture of 0, for each attachment point to which this
1.2368 + // image was attached in the currently bound framebuffer.
1.2369 +
1.2370 + Framebuffer *readFramebuffer = getReadFramebuffer();
1.2371 + Framebuffer *drawFramebuffer = getDrawFramebuffer();
1.2372 +
1.2373 + if (readFramebuffer)
1.2374 + {
1.2375 + readFramebuffer->detachTexture(texture);
1.2376 + }
1.2377 +
1.2378 + if (drawFramebuffer && drawFramebuffer != readFramebuffer)
1.2379 + {
1.2380 + drawFramebuffer->detachTexture(texture);
1.2381 + }
1.2382 +}
1.2383 +
1.2384 +void Context::detachFramebuffer(GLuint framebuffer)
1.2385 +{
1.2386 + // [OpenGL ES 2.0.24] section 4.4 page 107:
1.2387 + // If a framebuffer that is currently bound to the target FRAMEBUFFER is deleted, it is as though
1.2388 + // BindFramebuffer had been executed with the target of FRAMEBUFFER and framebuffer of zero.
1.2389 +
1.2390 + if (mState.readFramebuffer == framebuffer)
1.2391 + {
1.2392 + bindReadFramebuffer(0);
1.2393 + }
1.2394 +
1.2395 + if (mState.drawFramebuffer == framebuffer)
1.2396 + {
1.2397 + bindDrawFramebuffer(0);
1.2398 + }
1.2399 +}
1.2400 +
1.2401 +void Context::detachRenderbuffer(GLuint renderbuffer)
1.2402 +{
1.2403 + // [OpenGL ES 2.0.24] section 4.4 page 109:
1.2404 + // If a renderbuffer that is currently bound to RENDERBUFFER is deleted, it is as though BindRenderbuffer
1.2405 + // had been executed with the target RENDERBUFFER and name of zero.
1.2406 +
1.2407 + if (mState.renderbuffer.id() == renderbuffer)
1.2408 + {
1.2409 + bindRenderbuffer(0);
1.2410 + }
1.2411 +
1.2412 + // [OpenGL ES 2.0.24] section 4.4 page 111:
1.2413 + // If a renderbuffer object is deleted while its image is attached to the currently bound framebuffer,
1.2414 + // then it is as if FramebufferRenderbuffer had been called, with a renderbuffer of 0, for each attachment
1.2415 + // point to which this image was attached in the currently bound framebuffer.
1.2416 +
1.2417 + Framebuffer *readFramebuffer = getReadFramebuffer();
1.2418 + Framebuffer *drawFramebuffer = getDrawFramebuffer();
1.2419 +
1.2420 + if (readFramebuffer)
1.2421 + {
1.2422 + readFramebuffer->detachRenderbuffer(renderbuffer);
1.2423 + }
1.2424 +
1.2425 + if (drawFramebuffer && drawFramebuffer != readFramebuffer)
1.2426 + {
1.2427 + drawFramebuffer->detachRenderbuffer(renderbuffer);
1.2428 + }
1.2429 +}
1.2430 +
1.2431 +Texture *Context::getIncompleteTexture(TextureType type)
1.2432 +{
1.2433 + Texture *t = mIncompleteTextures[type].get();
1.2434 +
1.2435 + if (t == NULL)
1.2436 + {
1.2437 + static const GLubyte color[] = { 0, 0, 0, 255 };
1.2438 +
1.2439 + switch (type)
1.2440 + {
1.2441 + default:
1.2442 + UNREACHABLE();
1.2443 + // default falls through to TEXTURE_2D
1.2444 +
1.2445 + case TEXTURE_2D:
1.2446 + {
1.2447 + Texture2D *incomplete2d = new Texture2D(mRenderer, Texture::INCOMPLETE_TEXTURE_ID);
1.2448 + incomplete2d->setImage(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color);
1.2449 + t = incomplete2d;
1.2450 + }
1.2451 + break;
1.2452 +
1.2453 + case TEXTURE_CUBE:
1.2454 + {
1.2455 + TextureCubeMap *incompleteCube = new TextureCubeMap(mRenderer, Texture::INCOMPLETE_TEXTURE_ID);
1.2456 +
1.2457 + incompleteCube->setImagePosX(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color);
1.2458 + incompleteCube->setImageNegX(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color);
1.2459 + incompleteCube->setImagePosY(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color);
1.2460 + incompleteCube->setImageNegY(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color);
1.2461 + incompleteCube->setImagePosZ(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color);
1.2462 + incompleteCube->setImageNegZ(0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, 1, color);
1.2463 +
1.2464 + t = incompleteCube;
1.2465 + }
1.2466 + break;
1.2467 + }
1.2468 +
1.2469 + mIncompleteTextures[type].set(t);
1.2470 + }
1.2471 +
1.2472 + return t;
1.2473 +}
1.2474 +
1.2475 +bool Context::skipDraw(GLenum drawMode)
1.2476 +{
1.2477 + if (drawMode == GL_POINTS)
1.2478 + {
1.2479 + // ProgramBinary assumes non-point rendering if gl_PointSize isn't written,
1.2480 + // which affects varying interpolation. Since the value of gl_PointSize is
1.2481 + // undefined when not written, just skip drawing to avoid unexpected results.
1.2482 + if (!getCurrentProgramBinary()->usesPointSize())
1.2483 + {
1.2484 + // This is stictly speaking not an error, but developers should be
1.2485 + // notified of risking undefined behavior.
1.2486 + ERR("Point rendering without writing to gl_PointSize.");
1.2487 +
1.2488 + return true;
1.2489 + }
1.2490 + }
1.2491 + else if (IsTriangleMode(drawMode))
1.2492 + {
1.2493 + if (mState.rasterizer.cullFace && mState.rasterizer.cullMode == GL_FRONT_AND_BACK)
1.2494 + {
1.2495 + return true;
1.2496 + }
1.2497 + }
1.2498 +
1.2499 + return false;
1.2500 +}
1.2501 +
1.2502 +void Context::setVertexAttrib(GLuint index, const GLfloat *values)
1.2503 +{
1.2504 + ASSERT(index < gl::MAX_VERTEX_ATTRIBS);
1.2505 +
1.2506 + mState.vertexAttribute[index].mCurrentValue[0] = values[0];
1.2507 + mState.vertexAttribute[index].mCurrentValue[1] = values[1];
1.2508 + mState.vertexAttribute[index].mCurrentValue[2] = values[2];
1.2509 + mState.vertexAttribute[index].mCurrentValue[3] = values[3];
1.2510 +}
1.2511 +
1.2512 +void Context::setVertexAttribDivisor(GLuint index, GLuint divisor)
1.2513 +{
1.2514 + ASSERT(index < gl::MAX_VERTEX_ATTRIBS);
1.2515 +
1.2516 + mState.vertexAttribute[index].mDivisor = divisor;
1.2517 +}
1.2518 +
1.2519 +// keep list sorted in following order
1.2520 +// OES extensions
1.2521 +// EXT extensions
1.2522 +// Vendor extensions
1.2523 +void Context::initExtensionString()
1.2524 +{
1.2525 + std::string extensionString = "";
1.2526 +
1.2527 + // OES extensions
1.2528 + if (supports32bitIndices())
1.2529 + {
1.2530 + extensionString += "GL_OES_element_index_uint ";
1.2531 + }
1.2532 +
1.2533 + extensionString += "GL_OES_packed_depth_stencil ";
1.2534 + extensionString += "GL_OES_get_program_binary ";
1.2535 + extensionString += "GL_OES_rgb8_rgba8 ";
1.2536 + if (mRenderer->getDerivativeInstructionSupport())
1.2537 + {
1.2538 + extensionString += "GL_OES_standard_derivatives ";
1.2539 + }
1.2540 +
1.2541 + if (supportsFloat16Textures())
1.2542 + {
1.2543 + extensionString += "GL_OES_texture_half_float ";
1.2544 + }
1.2545 + if (supportsFloat16LinearFilter())
1.2546 + {
1.2547 + extensionString += "GL_OES_texture_half_float_linear ";
1.2548 + }
1.2549 + if (supportsFloat32Textures())
1.2550 + {
1.2551 + extensionString += "GL_OES_texture_float ";
1.2552 + }
1.2553 + if (supportsFloat32LinearFilter())
1.2554 + {
1.2555 + extensionString += "GL_OES_texture_float_linear ";
1.2556 + }
1.2557 +
1.2558 + if (supportsNonPower2Texture())
1.2559 + {
1.2560 + extensionString += "GL_OES_texture_npot ";
1.2561 + }
1.2562 +
1.2563 + // Multi-vendor (EXT) extensions
1.2564 + if (supportsOcclusionQueries())
1.2565 + {
1.2566 + extensionString += "GL_EXT_occlusion_query_boolean ";
1.2567 + }
1.2568 +
1.2569 + extensionString += "GL_EXT_read_format_bgra ";
1.2570 + extensionString += "GL_EXT_robustness ";
1.2571 +
1.2572 + if (supportsDXT1Textures())
1.2573 + {
1.2574 + extensionString += "GL_EXT_texture_compression_dxt1 ";
1.2575 + }
1.2576 +
1.2577 + if (supportsTextureFilterAnisotropy())
1.2578 + {
1.2579 + extensionString += "GL_EXT_texture_filter_anisotropic ";
1.2580 + }
1.2581 +
1.2582 + if (supportsBGRATextures())
1.2583 + {
1.2584 + extensionString += "GL_EXT_texture_format_BGRA8888 ";
1.2585 + }
1.2586 +
1.2587 + if (mRenderer->getMaxRenderTargets() > 1)
1.2588 + {
1.2589 + extensionString += "GL_EXT_draw_buffers ";
1.2590 + }
1.2591 +
1.2592 + extensionString += "GL_EXT_texture_storage ";
1.2593 + extensionString += "GL_EXT_frag_depth ";
1.2594 +
1.2595 + // ANGLE-specific extensions
1.2596 + if (supportsDepthTextures())
1.2597 + {
1.2598 + extensionString += "GL_ANGLE_depth_texture ";
1.2599 + }
1.2600 +
1.2601 + extensionString += "GL_ANGLE_framebuffer_blit ";
1.2602 + if (getMaxSupportedSamples() != 0)
1.2603 + {
1.2604 + extensionString += "GL_ANGLE_framebuffer_multisample ";
1.2605 + }
1.2606 +
1.2607 + if (supportsInstancing())
1.2608 + {
1.2609 + extensionString += "GL_ANGLE_instanced_arrays ";
1.2610 + }
1.2611 +
1.2612 + extensionString += "GL_ANGLE_pack_reverse_row_order ";
1.2613 +
1.2614 + if (supportsDXT3Textures())
1.2615 + {
1.2616 + extensionString += "GL_ANGLE_texture_compression_dxt3 ";
1.2617 + }
1.2618 + if (supportsDXT5Textures())
1.2619 + {
1.2620 + extensionString += "GL_ANGLE_texture_compression_dxt5 ";
1.2621 + }
1.2622 +
1.2623 + extensionString += "GL_ANGLE_texture_usage ";
1.2624 + extensionString += "GL_ANGLE_translated_shader_source ";
1.2625 +
1.2626 + // Other vendor-specific extensions
1.2627 + if (supportsEventQueries())
1.2628 + {
1.2629 + extensionString += "GL_NV_fence ";
1.2630 + }
1.2631 +
1.2632 + std::string::size_type end = extensionString.find_last_not_of(' ');
1.2633 + if (end != std::string::npos)
1.2634 + {
1.2635 + extensionString.resize(end+1);
1.2636 + }
1.2637 +
1.2638 + mExtensionString = makeStaticString(extensionString);
1.2639 +}
1.2640 +
1.2641 +const char *Context::getExtensionString() const
1.2642 +{
1.2643 + return mExtensionString;
1.2644 +}
1.2645 +
1.2646 +void Context::initRendererString()
1.2647 +{
1.2648 + std::ostringstream rendererString;
1.2649 + rendererString << "ANGLE (";
1.2650 + rendererString << mRenderer->getRendererDescription();
1.2651 + rendererString << ")";
1.2652 +
1.2653 + mRendererString = makeStaticString(rendererString.str());
1.2654 +}
1.2655 +
1.2656 +const char *Context::getRendererString() const
1.2657 +{
1.2658 + return mRendererString;
1.2659 +}
1.2660 +
1.2661 +void Context::blitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
1.2662 + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
1.2663 + GLbitfield mask)
1.2664 +{
1.2665 + Framebuffer *readFramebuffer = getReadFramebuffer();
1.2666 + Framebuffer *drawFramebuffer = getDrawFramebuffer();
1.2667 +
1.2668 + if (!readFramebuffer || readFramebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE ||
1.2669 + !drawFramebuffer || drawFramebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE)
1.2670 + {
1.2671 + return gl::error(GL_INVALID_FRAMEBUFFER_OPERATION);
1.2672 + }
1.2673 +
1.2674 + if (drawFramebuffer->getSamples() != 0)
1.2675 + {
1.2676 + return gl::error(GL_INVALID_OPERATION);
1.2677 + }
1.2678 +
1.2679 + Renderbuffer *readColorBuffer = readFramebuffer->getReadColorbuffer();
1.2680 + Renderbuffer *drawColorBuffer = drawFramebuffer->getFirstColorbuffer();
1.2681 +
1.2682 + if (drawColorBuffer == NULL)
1.2683 + {
1.2684 + ERR("Draw buffers formats don't match, which is not supported in this implementation of BlitFramebufferANGLE");
1.2685 + return gl::error(GL_INVALID_OPERATION);
1.2686 + }
1.2687 +
1.2688 + int readBufferWidth = readColorBuffer->getWidth();
1.2689 + int readBufferHeight = readColorBuffer->getHeight();
1.2690 + int drawBufferWidth = drawColorBuffer->getWidth();
1.2691 + int drawBufferHeight = drawColorBuffer->getHeight();
1.2692 +
1.2693 + Rectangle sourceRect;
1.2694 + Rectangle destRect;
1.2695 +
1.2696 + if (srcX0 < srcX1)
1.2697 + {
1.2698 + sourceRect.x = srcX0;
1.2699 + destRect.x = dstX0;
1.2700 + sourceRect.width = srcX1 - srcX0;
1.2701 + destRect.width = dstX1 - dstX0;
1.2702 + }
1.2703 + else
1.2704 + {
1.2705 + sourceRect.x = srcX1;
1.2706 + destRect.x = dstX1;
1.2707 + sourceRect.width = srcX0 - srcX1;
1.2708 + destRect.width = dstX0 - dstX1;
1.2709 + }
1.2710 +
1.2711 + if (srcY0 < srcY1)
1.2712 + {
1.2713 + sourceRect.height = srcY1 - srcY0;
1.2714 + destRect.height = dstY1 - dstY0;
1.2715 + sourceRect.y = srcY0;
1.2716 + destRect.y = dstY0;
1.2717 + }
1.2718 + else
1.2719 + {
1.2720 + sourceRect.height = srcY0 - srcY1;
1.2721 + destRect.height = dstY0 - srcY1;
1.2722 + sourceRect.y = srcY1;
1.2723 + destRect.y = dstY1;
1.2724 + }
1.2725 +
1.2726 + Rectangle sourceScissoredRect = sourceRect;
1.2727 + Rectangle destScissoredRect = destRect;
1.2728 +
1.2729 + if (mState.scissorTest)
1.2730 + {
1.2731 + // Only write to parts of the destination framebuffer which pass the scissor test.
1.2732 + if (destRect.x < mState.scissor.x)
1.2733 + {
1.2734 + int xDiff = mState.scissor.x - destRect.x;
1.2735 + destScissoredRect.x = mState.scissor.x;
1.2736 + destScissoredRect.width -= xDiff;
1.2737 + sourceScissoredRect.x += xDiff;
1.2738 + sourceScissoredRect.width -= xDiff;
1.2739 +
1.2740 + }
1.2741 +
1.2742 + if (destRect.x + destRect.width > mState.scissor.x + mState.scissor.width)
1.2743 + {
1.2744 + int xDiff = (destRect.x + destRect.width) - (mState.scissor.x + mState.scissor.width);
1.2745 + destScissoredRect.width -= xDiff;
1.2746 + sourceScissoredRect.width -= xDiff;
1.2747 + }
1.2748 +
1.2749 + if (destRect.y < mState.scissor.y)
1.2750 + {
1.2751 + int yDiff = mState.scissor.y - destRect.y;
1.2752 + destScissoredRect.y = mState.scissor.y;
1.2753 + destScissoredRect.height -= yDiff;
1.2754 + sourceScissoredRect.y += yDiff;
1.2755 + sourceScissoredRect.height -= yDiff;
1.2756 + }
1.2757 +
1.2758 + if (destRect.y + destRect.height > mState.scissor.y + mState.scissor.height)
1.2759 + {
1.2760 + int yDiff = (destRect.y + destRect.height) - (mState.scissor.y + mState.scissor.height);
1.2761 + destScissoredRect.height -= yDiff;
1.2762 + sourceScissoredRect.height -= yDiff;
1.2763 + }
1.2764 + }
1.2765 +
1.2766 + bool blitRenderTarget = false;
1.2767 + bool blitDepthStencil = false;
1.2768 +
1.2769 + Rectangle sourceTrimmedRect = sourceScissoredRect;
1.2770 + Rectangle destTrimmedRect = destScissoredRect;
1.2771 +
1.2772 + // The source & destination rectangles also may need to be trimmed if they fall out of the bounds of
1.2773 + // the actual draw and read surfaces.
1.2774 + if (sourceTrimmedRect.x < 0)
1.2775 + {
1.2776 + int xDiff = 0 - sourceTrimmedRect.x;
1.2777 + sourceTrimmedRect.x = 0;
1.2778 + sourceTrimmedRect.width -= xDiff;
1.2779 + destTrimmedRect.x += xDiff;
1.2780 + destTrimmedRect.width -= xDiff;
1.2781 + }
1.2782 +
1.2783 + if (sourceTrimmedRect.x + sourceTrimmedRect.width > readBufferWidth)
1.2784 + {
1.2785 + int xDiff = (sourceTrimmedRect.x + sourceTrimmedRect.width) - readBufferWidth;
1.2786 + sourceTrimmedRect.width -= xDiff;
1.2787 + destTrimmedRect.width -= xDiff;
1.2788 + }
1.2789 +
1.2790 + if (sourceTrimmedRect.y < 0)
1.2791 + {
1.2792 + int yDiff = 0 - sourceTrimmedRect.y;
1.2793 + sourceTrimmedRect.y = 0;
1.2794 + sourceTrimmedRect.height -= yDiff;
1.2795 + destTrimmedRect.y += yDiff;
1.2796 + destTrimmedRect.height -= yDiff;
1.2797 + }
1.2798 +
1.2799 + if (sourceTrimmedRect.y + sourceTrimmedRect.height > readBufferHeight)
1.2800 + {
1.2801 + int yDiff = (sourceTrimmedRect.y + sourceTrimmedRect.height) - readBufferHeight;
1.2802 + sourceTrimmedRect.height -= yDiff;
1.2803 + destTrimmedRect.height -= yDiff;
1.2804 + }
1.2805 +
1.2806 + if (destTrimmedRect.x < 0)
1.2807 + {
1.2808 + int xDiff = 0 - destTrimmedRect.x;
1.2809 + destTrimmedRect.x = 0;
1.2810 + destTrimmedRect.width -= xDiff;
1.2811 + sourceTrimmedRect.x += xDiff;
1.2812 + sourceTrimmedRect.width -= xDiff;
1.2813 + }
1.2814 +
1.2815 + if (destTrimmedRect.x + destTrimmedRect.width > drawBufferWidth)
1.2816 + {
1.2817 + int xDiff = (destTrimmedRect.x + destTrimmedRect.width) - drawBufferWidth;
1.2818 + destTrimmedRect.width -= xDiff;
1.2819 + sourceTrimmedRect.width -= xDiff;
1.2820 + }
1.2821 +
1.2822 + if (destTrimmedRect.y < 0)
1.2823 + {
1.2824 + int yDiff = 0 - destTrimmedRect.y;
1.2825 + destTrimmedRect.y = 0;
1.2826 + destTrimmedRect.height -= yDiff;
1.2827 + sourceTrimmedRect.y += yDiff;
1.2828 + sourceTrimmedRect.height -= yDiff;
1.2829 + }
1.2830 +
1.2831 + if (destTrimmedRect.y + destTrimmedRect.height > drawBufferHeight)
1.2832 + {
1.2833 + int yDiff = (destTrimmedRect.y + destTrimmedRect.height) - drawBufferHeight;
1.2834 + destTrimmedRect.height -= yDiff;
1.2835 + sourceTrimmedRect.height -= yDiff;
1.2836 + }
1.2837 +
1.2838 + bool partialBufferCopy = false;
1.2839 + if (sourceTrimmedRect.height < readBufferHeight ||
1.2840 + sourceTrimmedRect.width < readBufferWidth ||
1.2841 + destTrimmedRect.height < drawBufferHeight ||
1.2842 + destTrimmedRect.width < drawBufferWidth ||
1.2843 + sourceTrimmedRect.y != 0 || destTrimmedRect.y != 0 || sourceTrimmedRect.x != 0 || destTrimmedRect.x != 0)
1.2844 + {
1.2845 + partialBufferCopy = true;
1.2846 + }
1.2847 +
1.2848 + if (mask & GL_COLOR_BUFFER_BIT)
1.2849 + {
1.2850 + const GLenum readColorbufferType = readFramebuffer->getReadColorbufferType();
1.2851 + const bool validReadType = (readColorbufferType == GL_TEXTURE_2D) || (readColorbufferType == GL_RENDERBUFFER);
1.2852 + bool validDrawType = true;
1.2853 + bool validDrawFormat = true;
1.2854 +
1.2855 + for (unsigned int colorAttachment = 0; colorAttachment < gl::IMPLEMENTATION_MAX_DRAW_BUFFERS; colorAttachment++)
1.2856 + {
1.2857 + if (drawFramebuffer->isEnabledColorAttachment(colorAttachment))
1.2858 + {
1.2859 + if (drawFramebuffer->getColorbufferType(colorAttachment) != GL_TEXTURE_2D &&
1.2860 + drawFramebuffer->getColorbufferType(colorAttachment) != GL_RENDERBUFFER)
1.2861 + {
1.2862 + validDrawType = false;
1.2863 + }
1.2864 +
1.2865 + if (drawFramebuffer->getColorbuffer(colorAttachment)->getActualFormat() != readColorBuffer->getActualFormat())
1.2866 + {
1.2867 + validDrawFormat = false;
1.2868 + }
1.2869 + }
1.2870 + }
1.2871 +
1.2872 + if (!validReadType || !validDrawType || !validDrawFormat)
1.2873 + {
1.2874 + ERR("Color buffer format conversion in BlitFramebufferANGLE not supported by this implementation");
1.2875 + return gl::error(GL_INVALID_OPERATION);
1.2876 + }
1.2877 +
1.2878 + if (partialBufferCopy && readFramebuffer->getSamples() != 0)
1.2879 + {
1.2880 + return gl::error(GL_INVALID_OPERATION);
1.2881 + }
1.2882 +
1.2883 + blitRenderTarget = true;
1.2884 +
1.2885 + }
1.2886 +
1.2887 + if (mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
1.2888 + {
1.2889 + Renderbuffer *readDSBuffer = NULL;
1.2890 + Renderbuffer *drawDSBuffer = NULL;
1.2891 +
1.2892 + // We support OES_packed_depth_stencil, and do not support a separately attached depth and stencil buffer, so if we have
1.2893 + // both a depth and stencil buffer, it will be the same buffer.
1.2894 +
1.2895 + if (mask & GL_DEPTH_BUFFER_BIT)
1.2896 + {
1.2897 + if (readFramebuffer->getDepthbuffer() && drawFramebuffer->getDepthbuffer())
1.2898 + {
1.2899 + if (readFramebuffer->getDepthbufferType() != drawFramebuffer->getDepthbufferType() ||
1.2900 + readFramebuffer->getDepthbuffer()->getActualFormat() != drawFramebuffer->getDepthbuffer()->getActualFormat())
1.2901 + {
1.2902 + return gl::error(GL_INVALID_OPERATION);
1.2903 + }
1.2904 +
1.2905 + blitDepthStencil = true;
1.2906 + readDSBuffer = readFramebuffer->getDepthbuffer();
1.2907 + drawDSBuffer = drawFramebuffer->getDepthbuffer();
1.2908 + }
1.2909 + }
1.2910 +
1.2911 + if (mask & GL_STENCIL_BUFFER_BIT)
1.2912 + {
1.2913 + if (readFramebuffer->getStencilbuffer() && drawFramebuffer->getStencilbuffer())
1.2914 + {
1.2915 + if (readFramebuffer->getStencilbufferType() != drawFramebuffer->getStencilbufferType() ||
1.2916 + readFramebuffer->getStencilbuffer()->getActualFormat() != drawFramebuffer->getStencilbuffer()->getActualFormat())
1.2917 + {
1.2918 + return gl::error(GL_INVALID_OPERATION);
1.2919 + }
1.2920 +
1.2921 + blitDepthStencil = true;
1.2922 + readDSBuffer = readFramebuffer->getStencilbuffer();
1.2923 + drawDSBuffer = drawFramebuffer->getStencilbuffer();
1.2924 + }
1.2925 + }
1.2926 +
1.2927 + if (partialBufferCopy)
1.2928 + {
1.2929 + ERR("Only whole-buffer depth and stencil blits are supported by this implementation.");
1.2930 + return gl::error(GL_INVALID_OPERATION); // only whole-buffer copies are permitted
1.2931 + }
1.2932 +
1.2933 + if ((drawDSBuffer && drawDSBuffer->getSamples() != 0) ||
1.2934 + (readDSBuffer && readDSBuffer->getSamples() != 0))
1.2935 + {
1.2936 + return gl::error(GL_INVALID_OPERATION);
1.2937 + }
1.2938 + }
1.2939 +
1.2940 + if (blitRenderTarget || blitDepthStencil)
1.2941 + {
1.2942 + mRenderer->blitRect(readFramebuffer, sourceTrimmedRect, drawFramebuffer, destTrimmedRect, blitRenderTarget, blitDepthStencil);
1.2943 + }
1.2944 +}
1.2945 +
1.2946 +}
1.2947 +
1.2948 +extern "C"
1.2949 +{
1.2950 +gl::Context *glCreateContext(const gl::Context *shareContext, rx::Renderer *renderer, bool notifyResets, bool robustAccess)
1.2951 +{
1.2952 + return new gl::Context(shareContext, renderer, notifyResets, robustAccess);
1.2953 +}
1.2954 +
1.2955 +void glDestroyContext(gl::Context *context)
1.2956 +{
1.2957 + delete context;
1.2958 +
1.2959 + if (context == gl::getContext())
1.2960 + {
1.2961 + gl::makeCurrent(NULL, NULL, NULL);
1.2962 + }
1.2963 +}
1.2964 +
1.2965 +void glMakeCurrent(gl::Context *context, egl::Display *display, egl::Surface *surface)
1.2966 +{
1.2967 + gl::makeCurrent(context, display, surface);
1.2968 +}
1.2969 +
1.2970 +gl::Context *glGetCurrentContext()
1.2971 +{
1.2972 + return gl::getContext();
1.2973 +}
1.2974 +
1.2975 +}
