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//
// Copyright 2016 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// ContextNULL.h:
// Defines the class interface for ContextNULL, implementing ContextImpl.
//
#ifndef LIBANGLE_RENDERER_NULL_CONTEXTNULL_H_
#define LIBANGLE_RENDERER_NULL_CONTEXTNULL_H_
#include "libANGLE/renderer/ContextImpl.h"
namespace rx
{
class AllocationTrackerNULL : angle::NonCopyable
{
public:
explicit AllocationTrackerNULL(size_t maxTotalAllocationSize);
~AllocationTrackerNULL();
// Check if it is possible to change an allocation from oldSize to newSize. If it is possible,
// the allocation is registered and true is returned else false is returned.
bool updateMemoryAllocation(size_t oldSize, size_t newSize);
private:
size_t mAllocatedBytes;
const size_t mMaxBytes;
};
class ContextNULL : public ContextImpl
{
public:
ContextNULL(const gl::State &state,
gl::ErrorSet *errorSet,
AllocationTrackerNULL *allocationTracker);
~ContextNULL() override;
angle::Result initialize() override;
// Flush and finish.
angle::Result flush(const gl::Context *context) override;
angle::Result finish(const gl::Context *context) override;
// Drawing methods.
angle::Result drawArrays(const gl::Context *context,
gl::PrimitiveMode mode,
GLint first,
GLsizei count) override;
angle::Result drawArraysInstanced(const gl::Context *context,
gl::PrimitiveMode mode,
GLint first,
GLsizei count,
GLsizei instanceCount) override;
angle::Result drawElements(const gl::Context *context,
gl::PrimitiveMode mode,
GLsizei count,
gl::DrawElementsType type,
const void *indices) override;
angle::Result drawElementsInstanced(const gl::Context *context,
gl::PrimitiveMode mode,
GLsizei count,
gl::DrawElementsType type,
const void *indices,
GLsizei instances) override;
angle::Result drawRangeElements(const gl::Context *context,
gl::PrimitiveMode mode,
GLuint start,
GLuint end,
GLsizei count,
gl::DrawElementsType type,
const void *indices) override;
angle::Result drawArraysIndirect(const gl::Context *context,
gl::PrimitiveMode mode,
const void *indirect) override;
angle::Result drawElementsIndirect(const gl::Context *context,
gl::PrimitiveMode mode,
gl::DrawElementsType type,
const void *indirect) override;
// CHROMIUM_path_rendering path drawing methods.
void stencilFillPath(const gl::Path *path, GLenum fillMode, GLuint mask) override;
void stencilStrokePath(const gl::Path *path, GLint reference, GLuint mask) override;
void coverFillPath(const gl::Path *path, GLenum coverMode) override;
void coverStrokePath(const gl::Path *path, GLenum coverMode) override;
void stencilThenCoverFillPath(const gl::Path *path,
GLenum fillMode,
GLuint mask,
GLenum coverMode) override;
void stencilThenCoverStrokePath(const gl::Path *path,
GLint reference,
GLuint mask,
GLenum coverMode) override;
void coverFillPathInstanced(const std::vector<gl::Path *> &paths,
GLenum coverMode,
GLenum transformType,
const GLfloat *transformValues) override;
void coverStrokePathInstanced(const std::vector<gl::Path *> &paths,
GLenum coverMode,
GLenum transformType,
const GLfloat *transformValues) override;
void stencilFillPathInstanced(const std::vector<gl::Path *> &paths,
GLenum fillMode,
GLuint mask,
GLenum transformType,
const GLfloat *transformValues) override;
void stencilStrokePathInstanced(const std::vector<gl::Path *> &paths,
GLint reference,
GLuint mask,
GLenum transformType,
const GLfloat *transformValues) override;
void stencilThenCoverFillPathInstanced(const std::vector<gl::Path *> &paths,
GLenum coverMode,
GLenum fillMode,
GLuint mask,
GLenum transformType,
const GLfloat *transformValues) override;
void stencilThenCoverStrokePathInstanced(const std::vector<gl::Path *> &paths,
GLenum coverMode,
GLint reference,
GLuint mask,
GLenum transformType,
const GLfloat *transformValues) override;
// Device loss
GLenum getResetStatus() override;
// Vendor and description strings.
std::string getVendorString() const override;
std::string getRendererDescription() const override;
// EXT_debug_marker
void insertEventMarker(GLsizei length, const char *marker) override;
void pushGroupMarker(GLsizei length, const char *marker) override;
void popGroupMarker() override;
// KHR_debug
void pushDebugGroup(GLenum source, GLuint id, const std::string &message) override;
void popDebugGroup() override;
// State sync with dirty bits.
angle::Result syncState(const gl::Context *context,
const gl::State::DirtyBits &dirtyBits,
const gl::State::DirtyBits &bitMask) override;
// Disjoint timer queries
GLint getGPUDisjoint() override;
GLint64 getTimestamp() override;
// Context switching
angle::Result onMakeCurrent(const gl::Context *context) override;
// Native capabilities, unmodified by gl::Context.
gl::Caps getNativeCaps() const override;
const gl::TextureCapsMap &getNativeTextureCaps() const override;
const gl::Extensions &getNativeExtensions() const override;
const gl::Limitations &getNativeLimitations() const override;
// Shader creation
CompilerImpl *createCompiler() override;
ShaderImpl *createShader(const gl::ShaderState &data) override;
ProgramImpl *createProgram(const gl::ProgramState &data) override;
// Framebuffer creation
FramebufferImpl *createFramebuffer(const gl::FramebufferState &data) override;
// Texture creation
TextureImpl *createTexture(const gl::TextureState &state) override;
// Renderbuffer creation
RenderbufferImpl *createRenderbuffer(const gl::RenderbufferState &state) override;
// Buffer creation
BufferImpl *createBuffer(const gl::BufferState &state) override;
// Vertex Array creation
VertexArrayImpl *createVertexArray(const gl::VertexArrayState &data) override;
// Query and Fence creation
QueryImpl *createQuery(gl::QueryType type) override;
FenceNVImpl *createFenceNV() override;
SyncImpl *createSync() override;
// Transform Feedback creation
TransformFeedbackImpl *createTransformFeedback(
const gl::TransformFeedbackState &state) override;
// Sampler object creation
SamplerImpl *createSampler(const gl::SamplerState &state) override;
// Program Pipeline object creation
ProgramPipelineImpl *createProgramPipeline(const gl::ProgramPipelineState &data) override;
std::vector<PathImpl *> createPaths(GLsizei range) override;
angle::Result dispatchCompute(const gl::Context *context,
GLuint numGroupsX,
GLuint numGroupsY,
GLuint numGroupsZ) override;
angle::Result dispatchComputeIndirect(const gl::Context *context, GLintptr indirect) override;
angle::Result memoryBarrier(const gl::Context *context, GLbitfield barriers) override;
angle::Result memoryBarrierByRegion(const gl::Context *context, GLbitfield barriers) override;
void handleError(GLenum errorCode,
const char *message,
const char *file,
const char *function,
unsigned int line);
private:
gl::Caps mCaps;
gl::TextureCapsMap mTextureCaps;
gl::Extensions mExtensions;
gl::Limitations mLimitations;
AllocationTrackerNULL *mAllocationTracker;
};
} // namespace rx
#endif // LIBANGLE_RENDERER_NULL_CONTEXTNULL_H_
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