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Context.cpp
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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Context.cpp: Implements the es2::Context class, managing all GL state and performing
// rendering operations. It is the GLES2 specific implementation of EGLContext.
#include "Context.h"
#include "main.h"
#include "mathutil.h"
#include "utilities.h"
#include "ResourceManager.h"
#include "Buffer.h"
#include "Fence.h"
#include "Framebuffer.h"
#include "Program.h"
#include "Query.h"
#include "Renderbuffer.h"
#include "Sampler.h"
#include "Shader.h"
#include "Texture.h"
#include "TransformFeedback.h"
#include "VertexArray.h"
#include "VertexDataManager.h"
#include "IndexDataManager.h"
#include "libEGL/Display.h"
#include "common/Surface.hpp"
#include "Common/Half.hpp"
#include <EGL/eglext.h>
#include <algorithm>
#include <string>
namespace es2
{
Context::Context(egl::Display *display, const Context *shareContext, const egl::Config *config)
: egl::Context(display), config(config)
{
sw::Context *context = new sw::Context();
device = new es2::Device(context);
setClearColor(0.0f, 0.0f, 0.0f, 0.0f);
mState.depthClearValue = 1.0f;
mState.stencilClearValue = 0;
mState.cullFaceEnabled = false;
mState.cullMode = GL_BACK;
mState.frontFace = GL_CCW;
mState.depthTestEnabled = false;
mState.depthFunc = GL_LESS;
mState.blendEnabled = false;
mState.sourceBlendRGB = GL_ONE;
mState.sourceBlendAlpha = GL_ONE;
mState.destBlendRGB = GL_ZERO;
mState.destBlendAlpha = GL_ZERO;
mState.blendEquationRGB = GL_FUNC_ADD;
mState.blendEquationAlpha = GL_FUNC_ADD;
mState.blendColor.red = 0;
mState.blendColor.green = 0;
mState.blendColor.blue = 0;
mState.blendColor.alpha = 0;
mState.stencilTestEnabled = false;
mState.stencilFunc = GL_ALWAYS;
mState.stencilRef = 0;
mState.stencilMask = 0xFFFFFFFFu;
mState.stencilWritemask = 0xFFFFFFFFu;
mState.stencilBackFunc = GL_ALWAYS;
mState.stencilBackRef = 0;
mState.stencilBackMask = 0xFFFFFFFFu;
mState.stencilBackWritemask = 0xFFFFFFFFu;
mState.stencilFail = GL_KEEP;
mState.stencilPassDepthFail = GL_KEEP;
mState.stencilPassDepthPass = GL_KEEP;
mState.stencilBackFail = GL_KEEP;
mState.stencilBackPassDepthFail = GL_KEEP;
mState.stencilBackPassDepthPass = GL_KEEP;
mState.polygonOffsetFillEnabled = false;
mState.polygonOffsetFactor = 0.0f;
mState.polygonOffsetUnits = 0.0f;
mState.sampleAlphaToCoverageEnabled = false;
mState.sampleCoverageEnabled = false;
mState.sampleCoverageValue = 1.0f;
mState.sampleCoverageInvert = false;
mState.scissorTestEnabled = false;
mState.ditherEnabled = true;
mState.primitiveRestartFixedIndexEnabled = false;
mState.rasterizerDiscardEnabled = false;
mState.generateMipmapHint = GL_DONT_CARE;
mState.fragmentShaderDerivativeHint = GL_DONT_CARE;
mState.textureFilteringHint = GL_DONT_CARE;
mState.lineWidth = 1.0f;
mState.viewportX = 0;
mState.viewportY = 0;
mState.viewportWidth = 0;
mState.viewportHeight = 0;
mState.zNear = 0.0f;
mState.zFar = 1.0f;
mState.scissorX = 0;
mState.scissorY = 0;
mState.scissorWidth = 0;
mState.scissorHeight = 0;
mState.colorMaskRed = true;
mState.colorMaskGreen = true;
mState.colorMaskBlue = true;
mState.colorMaskAlpha = true;
mState.depthMask = true;
if(shareContext)
{
mResourceManager = shareContext->mResourceManager;
mResourceManager->addRef();
}
else
{
mResourceManager = new ResourceManager();
}
// [OpenGL ES 2.0.24] section 3.7 page 83:
// In the initial state, TEXTURE_2D and TEXTURE_CUBE_MAP have twodimensional
// and cube map texture state vectors respectively associated with them.
// In order that access to these initial textures not be lost, they are treated as texture
// objects all of whose names are 0.
mTexture2DZero = new Texture2D(0);
mTexture3DZero = new Texture3D(0);
mTexture2DArrayZero = new Texture2DArray(0);
mTextureCubeMapZero = new TextureCubeMap(0);
mTexture2DRectZero = new Texture2DRect(0);
mTextureExternalZero = new TextureExternal(0);
mState.activeSampler = 0;
for(int type = 0; type < TEXTURE_TYPE_COUNT; type++)
{
bindTexture((TextureType)type, 0);
}
bindVertexArray(0);
bindArrayBuffer(0);
bindElementArrayBuffer(0);
bindReadFramebuffer(0);
bindDrawFramebuffer(0);
bindRenderbuffer(0);
bindGenericUniformBuffer(0);
bindTransformFeedback(0);
mState.currentProgram = 0;
mVertexDataManager = nullptr;
mIndexDataManager = nullptr;
mInvalidEnum = false;
mInvalidValue = false;
mInvalidOperation = false;
mOutOfMemory = false;
mInvalidFramebufferOperation = false;
mHasBeenCurrent = false;
markAllStateDirty();
}
Context::~Context()
{
if(mState.currentProgram != 0)
{
Program *programObject = mResourceManager->getProgram(mState.currentProgram);
if(programObject)
{
programObject->release();
}
mState.currentProgram = 0;
}
while(!mFramebufferNameSpace.empty())
{
deleteFramebuffer(mFramebufferNameSpace.firstName());
}
while(!mFenceNameSpace.empty())
{
deleteFence(mFenceNameSpace.firstName());
}
while(!mQueryNameSpace.empty())
{
deleteQuery(mQueryNameSpace.firstName());
}
while(!mVertexArrayNameSpace.empty())
{
deleteVertexArray(mVertexArrayNameSpace.lastName());
}
while(!mTransformFeedbackNameSpace.empty())
{
deleteTransformFeedback(mTransformFeedbackNameSpace.firstName());
}
for(int type = 0; type < TEXTURE_TYPE_COUNT; type++)
{
for(int sampler = 0; sampler < MAX_COMBINED_TEXTURE_IMAGE_UNITS; sampler++)
{
mState.samplerTexture[type][sampler] = nullptr;
}
}
for(int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
{
mState.vertexAttribute[i].mBoundBuffer = nullptr;
}
for(int i = 0; i < QUERY_TYPE_COUNT; i++)
{
mState.activeQuery[i] = nullptr;
}
mState.arrayBuffer = nullptr;
mState.copyReadBuffer = nullptr;
mState.copyWriteBuffer = nullptr;
mState.pixelPackBuffer = nullptr;
mState.pixelUnpackBuffer = nullptr;
mState.genericUniformBuffer = nullptr;
mState.genericTransformFeedbackBuffer = nullptr;
for(int i = 0; i < MAX_UNIFORM_BUFFER_BINDINGS; i++) {
mState.uniformBuffers[i].set(nullptr, 0, 0);
}
mState.renderbuffer = nullptr;
for(int i = 0; i < MAX_COMBINED_TEXTURE_IMAGE_UNITS; ++i)
{
mState.sampler[i] = nullptr;
}
mTexture2DZero = nullptr;
mTexture3DZero = nullptr;
mTexture2DArrayZero = nullptr;
mTextureCubeMapZero = nullptr;
mTexture2DRectZero = nullptr;
mTextureExternalZero = nullptr;
delete mVertexDataManager;
delete mIndexDataManager;
mResourceManager->release();
delete device;
}
void Context::makeCurrent(gl::Surface *surface)
{
if(!mHasBeenCurrent)
{
mVertexDataManager = new VertexDataManager(this);
mIndexDataManager = new IndexDataManager();
mState.viewportX = 0;
mState.viewportY = 0;
mState.viewportWidth = surface ? surface->getWidth() : 0;
mState.viewportHeight = surface ? surface->getHeight() : 0;
mState.scissorX = 0;
mState.scissorY = 0;
mState.scissorWidth = surface ? surface->getWidth() : 0;
mState.scissorHeight = surface ? surface->getHeight() : 0;
mHasBeenCurrent = true;
}
if(surface)
{
// Wrap the existing resources into GL objects and assign them to the '0' names
egl::Image *defaultRenderTarget = surface->getRenderTarget();
egl::Image *depthStencil = surface->getDepthStencil();
Colorbuffer *colorbufferZero = new Colorbuffer(defaultRenderTarget);
DepthStencilbuffer *depthStencilbufferZero = new DepthStencilbuffer(depthStencil);
Framebuffer *framebufferZero = new DefaultFramebuffer(colorbufferZero, depthStencilbufferZero);
setFramebufferZero(framebufferZero);
if(defaultRenderTarget)
{
defaultRenderTarget->release();
}
if(depthStencil)
{
depthStencil->release();
}
}
else
{
setFramebufferZero(nullptr);
}
markAllStateDirty();
}
EGLint Context::getClientVersion() const
{
return 3;
}
EGLint Context::getConfigID() const
{
return config->mConfigID;
}
// This function will set all of the state-related dirty flags, so that all state is set during next pre-draw.
void Context::markAllStateDirty()
{
mAppliedProgramSerial = 0;
mDepthStateDirty = true;
mMaskStateDirty = true;
mBlendStateDirty = true;
mStencilStateDirty = true;
mPolygonOffsetStateDirty = true;
mSampleStateDirty = true;
mDitherStateDirty = true;
mFrontFaceDirty = true;
}
void Context::setClearColor(float red, float green, float blue, float alpha)
{
mState.colorClearValue.red = red;
mState.colorClearValue.green = green;
mState.colorClearValue.blue = blue;
mState.colorClearValue.alpha = alpha;
}
void Context::setClearDepth(float depth)
{
mState.depthClearValue = depth;
}
void Context::setClearStencil(int stencil)
{
mState.stencilClearValue = stencil;
}
void Context::setCullFaceEnabled(bool enabled)
{
mState.cullFaceEnabled = enabled;
}
bool Context::isCullFaceEnabled() const
{
return mState.cullFaceEnabled;
}
void Context::setCullMode(GLenum mode)
{
mState.cullMode = mode;
}
void Context::setFrontFace(GLenum front)
{
if(mState.frontFace != front)
{
mState.frontFace = front;
mFrontFaceDirty = true;
}
}
void Context::setDepthTestEnabled(bool enabled)
{
if(mState.depthTestEnabled != enabled)
{
mState.depthTestEnabled = enabled;
mDepthStateDirty = true;
}
}
bool Context::isDepthTestEnabled() const
{
return mState.depthTestEnabled;
}
void Context::setDepthFunc(GLenum depthFunc)
{
if(mState.depthFunc != depthFunc)
{
mState.depthFunc = depthFunc;
mDepthStateDirty = true;
}
}
void Context::setDepthRange(float zNear, float zFar)
{
mState.zNear = zNear;
mState.zFar = zFar;
}
void Context::setBlendEnabled(bool enabled)
{
if(mState.blendEnabled != enabled)
{
mState.blendEnabled = enabled;
mBlendStateDirty = true;
}
}
bool Context::isBlendEnabled() const
{
return mState.blendEnabled;
}
void Context::setBlendFactors(GLenum sourceRGB, GLenum destRGB, GLenum sourceAlpha, GLenum destAlpha)
{
if(mState.sourceBlendRGB != sourceRGB ||
mState.sourceBlendAlpha != sourceAlpha ||
mState.destBlendRGB != destRGB ||
mState.destBlendAlpha != destAlpha)
{
mState.sourceBlendRGB = sourceRGB;
mState.destBlendRGB = destRGB;
mState.sourceBlendAlpha = sourceAlpha;
mState.destBlendAlpha = destAlpha;
mBlendStateDirty = true;
}
}
void Context::setBlendColor(float red, float green, float blue, float alpha)
{
if(mState.blendColor.red != red ||
mState.blendColor.green != green ||
mState.blendColor.blue != blue ||
mState.blendColor.alpha != alpha)
{
mState.blendColor.red = red;
mState.blendColor.green = green;
mState.blendColor.blue = blue;
mState.blendColor.alpha = alpha;
mBlendStateDirty = true;
}
}
void Context::setBlendEquation(GLenum rgbEquation, GLenum alphaEquation)
{
if(mState.blendEquationRGB != rgbEquation ||
mState.blendEquationAlpha != alphaEquation)
{
mState.blendEquationRGB = rgbEquation;
mState.blendEquationAlpha = alphaEquation;
mBlendStateDirty = true;
}
}
void Context::setStencilTestEnabled(bool enabled)
{
if(mState.stencilTestEnabled != enabled)
{
mState.stencilTestEnabled = enabled;
mStencilStateDirty = true;
}
}
bool Context::isStencilTestEnabled() const
{
return mState.stencilTestEnabled;
}
void Context::setStencilParams(GLenum stencilFunc, GLint stencilRef, GLuint stencilMask)
{
if(mState.stencilFunc != stencilFunc ||
mState.stencilRef != stencilRef ||
mState.stencilMask != stencilMask)
{
mState.stencilFunc = stencilFunc;
mState.stencilRef = (stencilRef > 0) ? stencilRef : 0;
mState.stencilMask = stencilMask;
mStencilStateDirty = true;
}
}
void Context::setStencilBackParams(GLenum stencilBackFunc, GLint stencilBackRef, GLuint stencilBackMask)
{
if(mState.stencilBackFunc != stencilBackFunc ||
mState.stencilBackRef != stencilBackRef ||
mState.stencilBackMask != stencilBackMask)
{
mState.stencilBackFunc = stencilBackFunc;
mState.stencilBackRef = (stencilBackRef > 0) ? stencilBackRef : 0;
mState.stencilBackMask = stencilBackMask;
mStencilStateDirty = true;
}
}
void Context::setStencilWritemask(GLuint stencilWritemask)
{
if(mState.stencilWritemask != stencilWritemask)
{
mState.stencilWritemask = stencilWritemask;
mStencilStateDirty = true;
}
}
void Context::setStencilBackWritemask(GLuint stencilBackWritemask)
{
if(mState.stencilBackWritemask != stencilBackWritemask)
{
mState.stencilBackWritemask = stencilBackWritemask;
mStencilStateDirty = true;
}
}
void Context::setStencilOperations(GLenum stencilFail, GLenum stencilPassDepthFail, GLenum stencilPassDepthPass)
{
if(mState.stencilFail != stencilFail ||
mState.stencilPassDepthFail != stencilPassDepthFail ||
mState.stencilPassDepthPass != stencilPassDepthPass)
{
mState.stencilFail = stencilFail;
mState.stencilPassDepthFail = stencilPassDepthFail;
mState.stencilPassDepthPass = stencilPassDepthPass;
mStencilStateDirty = true;
}
}
void Context::setStencilBackOperations(GLenum stencilBackFail, GLenum stencilBackPassDepthFail, GLenum stencilBackPassDepthPass)
{
if(mState.stencilBackFail != stencilBackFail ||
mState.stencilBackPassDepthFail != stencilBackPassDepthFail ||
mState.stencilBackPassDepthPass != stencilBackPassDepthPass)
{
mState.stencilBackFail = stencilBackFail;
mState.stencilBackPassDepthFail = stencilBackPassDepthFail;
mState.stencilBackPassDepthPass = stencilBackPassDepthPass;
mStencilStateDirty = true;
}
}
void Context::setPolygonOffsetFillEnabled(bool enabled)
{
if(mState.polygonOffsetFillEnabled != enabled)
{
mState.polygonOffsetFillEnabled = enabled;
mPolygonOffsetStateDirty = true;
}
}
bool Context::isPolygonOffsetFillEnabled() const
{
return mState.polygonOffsetFillEnabled;
}
void Context::setPolygonOffsetParams(GLfloat factor, GLfloat units)
{
if(mState.polygonOffsetFactor != factor ||
mState.polygonOffsetUnits != units)
{
mState.polygonOffsetFactor = factor;
mState.polygonOffsetUnits = units;
mPolygonOffsetStateDirty = true;
}
}
void Context::setSampleAlphaToCoverageEnabled(bool enabled)
{
if(mState.sampleAlphaToCoverageEnabled != enabled)
{
mState.sampleAlphaToCoverageEnabled = enabled;
mSampleStateDirty = true;
}
}
bool Context::isSampleAlphaToCoverageEnabled() const
{
return mState.sampleAlphaToCoverageEnabled;
}
void Context::setSampleCoverageEnabled(bool enabled)
{
if(mState.sampleCoverageEnabled != enabled)
{
mState.sampleCoverageEnabled = enabled;
mSampleStateDirty = true;
}
}
bool Context::isSampleCoverageEnabled() const
{
return mState.sampleCoverageEnabled;
}
void Context::setSampleCoverageParams(GLclampf value, bool invert)
{
if(mState.sampleCoverageValue != value ||
mState.sampleCoverageInvert != invert)
{
mState.sampleCoverageValue = value;
mState.sampleCoverageInvert = invert;
mSampleStateDirty = true;
}
}
void Context::setScissorTestEnabled(bool enabled)
{
mState.scissorTestEnabled = enabled;
}
bool Context::isScissorTestEnabled() const
{
return mState.scissorTestEnabled;
}
void Context::setDitherEnabled(bool enabled)
{
if(mState.ditherEnabled != enabled)
{
mState.ditherEnabled = enabled;
mDitherStateDirty = true;
}
}
bool Context::isDitherEnabled() const
{
return mState.ditherEnabled;
}
void Context::setPrimitiveRestartFixedIndexEnabled(bool enabled)
{
mState.primitiveRestartFixedIndexEnabled = enabled;
}
bool Context::isPrimitiveRestartFixedIndexEnabled() const
{
return mState.primitiveRestartFixedIndexEnabled;
}
void Context::setRasterizerDiscardEnabled(bool enabled)
{
mState.rasterizerDiscardEnabled = enabled;
}
bool Context::isRasterizerDiscardEnabled() const
{
return mState.rasterizerDiscardEnabled;
}
void Context::setLineWidth(GLfloat width)
{
mState.lineWidth = width;
device->setLineWidth(clamp(width, ALIASED_LINE_WIDTH_RANGE_MIN, ALIASED_LINE_WIDTH_RANGE_MAX));
}
void Context::setGenerateMipmapHint(GLenum hint)
{
mState.generateMipmapHint = hint;
}
void Context::setFragmentShaderDerivativeHint(GLenum hint)
{
mState.fragmentShaderDerivativeHint = hint;
// TODO: Propagate the hint to shader translator so we can write
// ddx, ddx_coarse, or ddx_fine depending on the hint.
// Ignore for now. It is valid for implementations to ignore hint.
}
void Context::setTextureFilteringHint(GLenum hint)
{
mState.textureFilteringHint = hint;
}
void Context::setViewportParams(GLint x, GLint y, GLsizei width, GLsizei height)
{
mState.viewportX = x;
mState.viewportY = y;
mState.viewportWidth = std::min<GLsizei>(width, IMPLEMENTATION_MAX_RENDERBUFFER_SIZE); // GL_MAX_VIEWPORT_DIMS[0]
mState.viewportHeight = std::min<GLsizei>(height, IMPLEMENTATION_MAX_RENDERBUFFER_SIZE); // GL_MAX_VIEWPORT_DIMS[1]
}
void Context::setScissorParams(GLint x, GLint y, GLsizei width, GLsizei height)
{
mState.scissorX = x;
mState.scissorY = y;
// An overflow happens when (infinite precision) X + Width > INT32_MAX. We
// can change that formula to "X > INT32_MAX - Width". And when we bring it
// down to 32-bit precision, we know it's safe because width is non-negative.
if (x > INT32_MAX - width)
{
width = INT32_MAX - x;
}
if (y > INT32_MAX - height)
{
height = INT32_MAX - y;
}
mState.scissorWidth = width;
mState.scissorHeight = height;
}
void Context::setColorMask(bool red, bool green, bool blue, bool alpha)
{
if(mState.colorMaskRed != red || mState.colorMaskGreen != green ||
mState.colorMaskBlue != blue || mState.colorMaskAlpha != alpha)
{
mState.colorMaskRed = red;
mState.colorMaskGreen = green;
mState.colorMaskBlue = blue;
mState.colorMaskAlpha = alpha;
mMaskStateDirty = true;
}
}
unsigned int Context::getColorMask() const
{
return (mState.colorMaskRed ? 0x1 : 0) |
(mState.colorMaskGreen ? 0x2 : 0) |
(mState.colorMaskBlue ? 0x4 : 0) |
(mState.colorMaskAlpha ? 0x8 : 0);
}
void Context::setDepthMask(bool mask)
{
if(mState.depthMask != mask)
{
mState.depthMask = mask;
mMaskStateDirty = true;
}
}
void Context::setActiveSampler(unsigned int active)
{
mState.activeSampler = active;
}
GLuint Context::getReadFramebufferName() const
{
return mState.readFramebuffer;
}
GLuint Context::getDrawFramebufferName() const
{
return mState.drawFramebuffer;
}
GLuint Context::getRenderbufferName() const
{
return mState.renderbuffer.name();
}
void Context::setFramebufferReadBuffer(GLuint buf)
{
Framebuffer *framebuffer = getReadFramebuffer();
if(framebuffer)
{
framebuffer->setReadBuffer(buf);
}
else
{
return error(GL_INVALID_OPERATION);
}
}
void Context::setFramebufferDrawBuffers(GLsizei n, const GLenum *bufs)
{
Framebuffer *drawFramebuffer = getDrawFramebuffer();
if(drawFramebuffer)
{
for(int i = 0; i < MAX_COLOR_ATTACHMENTS; i++)
{
drawFramebuffer->setDrawBuffer(i, (i < n) ? bufs[i] : GL_NONE);
}
}
else
{
return error(GL_INVALID_OPERATION);
}
}
GLuint Context::getArrayBufferName() const
{
return mState.arrayBuffer.name();
}
GLuint Context::getElementArrayBufferName() const
{
Buffer* elementArrayBuffer = getCurrentVertexArray()->getElementArrayBuffer();
return elementArrayBuffer ? elementArrayBuffer->name : 0;
}
GLuint Context::getActiveQuery(GLenum target) const
{
Query *queryObject = nullptr;
switch(target)
{
case GL_ANY_SAMPLES_PASSED_EXT:
queryObject = mState.activeQuery[QUERY_ANY_SAMPLES_PASSED];
break;
case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
queryObject = mState.activeQuery[QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE];
break;
case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
queryObject = mState.activeQuery[QUERY_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN];
break;
default:
ASSERT(false);
}
if(queryObject)
{
return queryObject->name;
}
return 0;
}
void Context::setVertexAttribArrayEnabled(unsigned int attribNum, bool enabled)
{
getCurrentVertexArray()->enableAttribute(attribNum, enabled);
}
void Context::setVertexAttribDivisor(unsigned int attribNum, GLuint divisor)
{
getCurrentVertexArray()->setVertexAttribDivisor(attribNum, divisor);
}
const VertexAttribute &Context::getVertexAttribState(unsigned int attribNum) const
{
return getCurrentVertexArray()->getVertexAttribute(attribNum);
}
void Context::setVertexAttribState(unsigned int attribNum, Buffer *boundBuffer, GLint size, GLenum type,
bool normalized, bool pureInteger, GLsizei stride, const void *pointer)
{
getCurrentVertexArray()->setAttributeState(attribNum, boundBuffer, size, type, normalized, pureInteger, stride, pointer);
}
const void *Context::getVertexAttribPointer(unsigned int attribNum) const
{
return getCurrentVertexArray()->getVertexAttribute(attribNum).mPointer;
}
const VertexAttributeArray &Context::getVertexArrayAttributes()
{
return getCurrentVertexArray()->getVertexAttributes();
}
const VertexAttributeArray &Context::getCurrentVertexAttributes()
{
return mState.vertexAttribute;
}
void Context::setPackAlignment(GLint alignment)
{
mState.packParameters.alignment = alignment;
}
void Context::setUnpackAlignment(GLint alignment)
{
mState.unpackParameters.alignment = alignment;
}
const gl::PixelStorageModes &Context::getUnpackParameters() const
{
return mState.unpackParameters;
}
void Context::setPackRowLength(GLint rowLength)
{
mState.packParameters.rowLength = rowLength;
}
void Context::setPackSkipPixels(GLint skipPixels)
{
mState.packParameters.skipPixels = skipPixels;
}
void Context::setPackSkipRows(GLint skipRows)
{
mState.packParameters.skipRows = skipRows;
}
void Context::setUnpackRowLength(GLint rowLength)
{
mState.unpackParameters.rowLength = rowLength;
}
void Context::setUnpackImageHeight(GLint imageHeight)
{
mState.unpackParameters.imageHeight = imageHeight;
}
void Context::setUnpackSkipPixels(GLint skipPixels)
{
mState.unpackParameters.skipPixels = skipPixels;
}
void Context::setUnpackSkipRows(GLint skipRows)
{
mState.unpackParameters.skipRows = skipRows;
}
void Context::setUnpackSkipImages(GLint skipImages)
{
mState.unpackParameters.skipImages = skipImages;
}
GLuint Context::createBuffer()
{
return mResourceManager->createBuffer();
}
GLuint Context::createProgram()
{
return mResourceManager->createProgram();
}
GLuint Context::createShader(GLenum type)
{
return mResourceManager->createShader(type);
}
GLuint Context::createTexture()
{
return mResourceManager->createTexture();
}
GLuint Context::createRenderbuffer()
{
return mResourceManager->createRenderbuffer();
}
// Returns an unused framebuffer name
GLuint Context::createFramebuffer()
{
return mFramebufferNameSpace.allocate();
}
GLuint Context::createFence()
{
return mFenceNameSpace.allocate(new Fence());
}
// Returns an unused query name
GLuint Context::createQuery()
{
return mQueryNameSpace.allocate();
}
// Returns an unused vertex array name
GLuint Context::createVertexArray()
{
return mVertexArrayNameSpace.allocate();
}
GLsync Context::createFenceSync(GLenum condition, GLbitfield flags)
{
GLuint handle = mResourceManager->createFenceSync(condition, flags);
return reinterpret_cast<GLsync>(static_cast<uintptr_t>(handle));
}
// Returns an unused transform feedback name
GLuint Context::createTransformFeedback()
{
return mTransformFeedbackNameSpace.allocate();
}
// Returns an unused sampler name
GLuint Context::createSampler()
{
return mResourceManager->createSampler();
}
void Context::deleteBuffer(GLuint buffer)
{
detachBuffer(buffer);
mResourceManager->deleteBuffer(buffer);
}
void Context::deleteShader(GLuint shader)
{