blob: 5c7261b35c176ea765afd28a74dafaff7771efb9 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_
#define GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_
#include <stddef.h>
#include <stdint.h>
#include <list>
#include <map>
#include <memory>
#include <queue>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/trace_event/memory_dump_provider.h"
#include "gpu/command_buffer/client/buffer_tracker.h"
#include "gpu/command_buffer/client/client_context_state.h"
#include "gpu/command_buffer/client/context_support.h"
#include "gpu/command_buffer/client/gles2_impl_export.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "gpu/command_buffer/client/gpu_control_client.h"
#include "gpu/command_buffer/client/mapped_memory.h"
#include "gpu/command_buffer/client/ref_counted.h"
#include "gpu/command_buffer/client/share_group.h"
#include "gpu/command_buffer/common/capabilities.h"
#include "gpu/command_buffer/common/debug_marker_manager.h"
#include "gpu/command_buffer/common/gles2_cmd_utils.h"
#if !defined(NDEBUG) && !defined(__native_client__) && !defined(GLES2_CONFORMANCE_TESTS) // NOLINT
#if defined(GLES2_INLINE_OPTIMIZATION)
// TODO(gman): Replace with macros that work with inline optmization.
#define GPU_CLIENT_SINGLE_THREAD_CHECK()
#define GPU_CLIENT_LOG(args)
#define GPU_CLIENT_LOG_CODE_BLOCK(code)
#define GPU_CLIENT_DCHECK_CODE_BLOCK(code)
#else
#include "base/logging.h"
#define GPU_CLIENT_SINGLE_THREAD_CHECK() SingleThreadChecker checker(this);
#define GPU_CLIENT_LOG(args) DLOG_IF(INFO, debug_) << args;
#define GPU_CLIENT_LOG_CODE_BLOCK(code) code
#define GPU_CLIENT_DCHECK_CODE_BLOCK(code) code
#define GPU_CLIENT_DEBUG
#endif
#else
#define GPU_CLIENT_SINGLE_THREAD_CHECK()
#define GPU_CLIENT_LOG(args)
#define GPU_CLIENT_LOG_CODE_BLOCK(code)
#define GPU_CLIENT_DCHECK_CODE_BLOCK(code)
#endif
#if defined(GPU_CLIENT_DEBUG)
// Set to 1 to have the client fail when a GL error is generated.
// This helps find bugs in the renderer since the debugger stops on the error.
# if 0
# define GL_CLIENT_FAIL_GL_ERRORS
# endif
#endif
// Check that destination pointers point to initialized memory.
// When the context is lost, calling GL function has no effect so if destination
// pointers point to initialized memory it can often lead to crash bugs. eg.
//
// GLsizei len;
// glGetShaderSource(shader, max_size, &len, buffer);
// std::string src(buffer, buffer + len); // len can be uninitialized here!!!
//
// Because this check is not official GL this check happens only on Chrome code,
// not Pepper.
//
// If it was up to us we'd just always write to the destination but the OpenGL
// spec defines the behavior of OpenGL functions, not us. :-(
#if defined(__native_client__) || defined(GLES2_CONFORMANCE_TESTS)
#define GPU_CLIENT_VALIDATE_DESTINATION_INITALIZATION_ASSERT(v)
#define GPU_CLIENT_DCHECK(v)
#elif defined(GPU_DCHECK)
#define GPU_CLIENT_VALIDATE_DESTINATION_INITALIZATION_ASSERT(v) GPU_DCHECK(v)
#define GPU_CLIENT_DCHECK(v) GPU_DCHECK(v)
#elif defined(DCHECK)
#define GPU_CLIENT_VALIDATE_DESTINATION_INITALIZATION_ASSERT(v) DCHECK(v)
#define GPU_CLIENT_DCHECK(v) DCHECK(v)
#else
#define GPU_CLIENT_VALIDATE_DESTINATION_INITALIZATION_ASSERT(v) ASSERT(v)
#define GPU_CLIENT_DCHECK(v) ASSERT(v)
#endif
#define GPU_CLIENT_VALIDATE_DESTINATION_INITALIZATION(type, ptr) \
GPU_CLIENT_VALIDATE_DESTINATION_INITALIZATION_ASSERT(ptr && \
(ptr[0] == static_cast<type>(0) || ptr[0] == static_cast<type>(-1)));
#define GPU_CLIENT_VALIDATE_DESTINATION_OPTIONAL_INITALIZATION(type, ptr) \
GPU_CLIENT_VALIDATE_DESTINATION_INITALIZATION_ASSERT(!ptr || \
(ptr[0] == static_cast<type>(0) || ptr[0] == static_cast<type>(-1)));
namespace gpu {
class GpuControl;
class IdAllocator;
class ScopedTransferBufferPtr;
class TransferBufferInterface;
namespace gles2 {
class GLES2CmdHelper;
class VertexArrayObjectManager;
class QueryTracker;
// This class emulates GLES2 over command buffers. It can be used by a client
// program so that the program does not need deal with shared memory and command
// buffer management. See gl2_lib.h. Note that there is a performance gain to
// be had by changing your code to use command buffers directly by using the
// GLES2CmdHelper but that entails changing your code to use and deal with
// shared memory and synchronization issues.
class GLES2_IMPL_EXPORT GLES2Implementation
: NON_EXPORTED_BASE(public GLES2Interface),
NON_EXPORTED_BASE(public ContextSupport),
NON_EXPORTED_BASE(public GpuControlClient),
NON_EXPORTED_BASE(public base::trace_event::MemoryDumpProvider) {
public:
// Stores GL state that never changes.
struct GLES2_IMPL_EXPORT GLStaticState {
GLStaticState();
~GLStaticState();
typedef std::pair<GLenum, GLenum> ShaderPrecisionKey;
typedef std::map<ShaderPrecisionKey,
cmds::GetShaderPrecisionFormat::Result>
ShaderPrecisionMap;
ShaderPrecisionMap shader_precisions;
};
// The maxiumum result size from simple GL get commands.
static const size_t kMaxSizeOfSimpleResult =
16 * sizeof(uint32_t); // NOLINT.
// used for testing only. If more things are reseved add them here.
static const unsigned int kStartingOffset = kMaxSizeOfSimpleResult;
// Size in bytes to issue async flush for transfer buffer.
static const unsigned int kSizeToFlush = 256 * 1024;
// The bucket used for results. Public for testing only.
static const uint32_t kResultBucketId = 1;
// Alignment of allocations.
static const unsigned int kAlignment = 16;
// GL names for the buffers used to emulate client side buffers.
static const GLuint kClientSideArrayId = 0xFEDCBA98u;
static const GLuint kClientSideElementArrayId = 0xFEDCBA99u;
// Number of swap buffers allowed before waiting.
static const size_t kMaxSwapBuffers = 2;
GLES2Implementation(GLES2CmdHelper* helper,
scoped_refptr<ShareGroup> share_group,
TransferBufferInterface* transfer_buffer,
bool bind_generates_resource,
bool lose_context_when_out_of_memory,
bool support_client_side_arrays,
GpuControl* gpu_control);
~GLES2Implementation() override;
bool Initialize(
unsigned int starting_transfer_buffer_size,
unsigned int min_transfer_buffer_size,
unsigned int max_transfer_buffer_size,
unsigned int mapped_memory_limit);
// The GLES2CmdHelper being used by this GLES2Implementation. You can use
// this to issue cmds at a lower level for certain kinds of optimization.
GLES2CmdHelper* helper() const;
// Gets client side generated errors.
GLenum GetClientSideGLError();
// Include the auto-generated part of this class. We split this because
// it means we can easily edit the non-auto generated parts right here in
// this file instead of having to edit some template or the code generator.
#include "gpu/command_buffer/client/gles2_implementation_autogen.h"
void DisableVertexAttribArray(GLuint index) override;
void EnableVertexAttribArray(GLuint index) override;
void GetVertexAttribfv(GLuint index, GLenum pname, GLfloat* params) override;
void GetVertexAttribiv(GLuint index, GLenum pname, GLint* params) override;
void GetVertexAttribIiv(GLuint index, GLenum pname, GLint* params) override;
void GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint* params) override;
// ContextSupport implementation.
void Swap() override;
void PartialSwapBuffers(const gfx::Rect& sub_buffer) override;
void CommitOverlayPlanes() override;
void ScheduleOverlayPlane(int plane_z_order,
gfx::OverlayTransform plane_transform,
unsigned overlay_texture_id,
const gfx::Rect& display_bounds,
const gfx::RectF& uv_rect) override;
uint64_t ShareGroupTracingGUID() const override;
void SetErrorMessageCallback(
const base::Callback<void(const char*, int32_t)>& callback) override;
// TODO(danakj): Move to ContextSupport once ContextProvider doesn't need to
// intercept it.
void SetLostContextCallback(const base::Closure& callback);
void GetProgramInfoCHROMIUMHelper(GLuint program,
std::vector<int8_t>* result);
GLint GetAttribLocationHelper(GLuint program, const char* name);
GLint GetUniformLocationHelper(GLuint program, const char* name);
GLint GetFragDataIndexEXTHelper(GLuint program, const char* name);
GLint GetFragDataLocationHelper(GLuint program, const char* name);
bool GetActiveAttribHelper(
GLuint program, GLuint index, GLsizei bufsize, GLsizei* length,
GLint* size, GLenum* type, char* name);
bool GetActiveUniformHelper(
GLuint program, GLuint index, GLsizei bufsize, GLsizei* length,
GLint* size, GLenum* type, char* name);
void GetUniformBlocksCHROMIUMHelper(GLuint program,
std::vector<int8_t>* result);
void GetUniformsES3CHROMIUMHelper(GLuint program,
std::vector<int8_t>* result);
GLuint GetUniformBlockIndexHelper(GLuint program, const char* name);
bool GetActiveUniformBlockNameHelper(
GLuint program, GLuint index, GLsizei bufsize,
GLsizei* length, char* name);
bool GetActiveUniformBlockivHelper(
GLuint program, GLuint index, GLenum pname, GLint* params);
void GetTransformFeedbackVaryingsCHROMIUMHelper(GLuint program,
std::vector<int8_t>* result);
bool GetTransformFeedbackVaryingHelper(
GLuint program, GLuint index, GLsizei bufsize, GLsizei* length,
GLint* size, GLenum* type, char* name);
bool GetUniformIndicesHelper(
GLuint program, GLsizei count, const char* const* names, GLuint* indices);
bool GetActiveUniformsivHelper(
GLuint program, GLsizei count, const GLuint* indices,
GLenum pname, GLint* params);
bool GetSyncivHelper(
GLsync sync, GLenum pname, GLsizei bufsize, GLsizei* length,
GLint* values);
bool GetQueryObjectValueHelper(
const char* function_name, GLuint id, GLenum pname, GLuint64* params);
void FreeUnusedSharedMemory();
void FreeEverything();
// ContextSupport implementation.
void SignalSyncToken(const gpu::SyncToken& sync_token,
const base::Closure& callback) override;
void SignalQuery(uint32_t query, const base::Closure& callback) override;
void SetAggressivelyFreeResources(bool aggressively_free_resources) override;
// base::trace_event::MemoryDumpProvider implementation.
bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
base::trace_event::ProcessMemoryDump* pmd) override;
const scoped_refptr<ShareGroup>& share_group() const { return share_group_; }
const Capabilities& capabilities() const {
return capabilities_;
}
GpuControl* gpu_control() {
return gpu_control_;
}
ShareGroupContextData* share_group_context_data() {
return &share_group_context_data_;
}
private:
friend class GLES2ImplementationTest;
friend class VertexArrayObjectManager;
friend class QueryTracker;
// Used to track whether an extension is available
enum ExtensionStatus {
kAvailableExtensionStatus,
kUnavailableExtensionStatus,
kUnknownExtensionStatus
};
enum Dimension {
k2D,
k3D,
};
// Base class for mapped resources.
struct MappedResource {
MappedResource(GLenum _access, int _shm_id, void* mem, unsigned int offset)
: access(_access),
shm_id(_shm_id),
shm_memory(mem),
shm_offset(offset) {
}
// access mode. Currently only GL_WRITE_ONLY is valid
GLenum access;
// Shared memory ID for buffer.
int shm_id;
// Address of shared memory
void* shm_memory;
// Offset of shared memory
unsigned int shm_offset;
};
// Used to track mapped textures.
struct MappedTexture : public MappedResource {
MappedTexture(
GLenum access,
int shm_id,
void* shm_mem,
unsigned int shm_offset,
GLenum _target,
GLint _level,
GLint _xoffset,
GLint _yoffset,
GLsizei _width,
GLsizei _height,
GLenum _format,
GLenum _type)
: MappedResource(access, shm_id, shm_mem, shm_offset),
target(_target),
level(_level),
xoffset(_xoffset),
yoffset(_yoffset),
width(_width),
height(_height),
format(_format),
type(_type) {
}
// These match the arguments to TexSubImage2D.
GLenum target;
GLint level;
GLint xoffset;
GLint yoffset;
GLsizei width;
GLsizei height;
GLenum format;
GLenum type;
};
// Used to track mapped buffers.
struct MappedBuffer : public MappedResource {
MappedBuffer(
GLenum access,
int shm_id,
void* shm_mem,
unsigned int shm_offset,
GLenum _target,
GLintptr _offset,
GLsizeiptr _size)
: MappedResource(access, shm_id, shm_mem, shm_offset),
target(_target),
offset(_offset),
size(_size) {
}
// These match the arguments to BufferSubData.
GLenum target;
GLintptr offset;
GLsizeiptr size;
};
struct TextureUnit {
TextureUnit()
: bound_texture_2d(0),
bound_texture_cube_map(0),
bound_texture_external_oes(0) {}
// texture currently bound to this unit's GL_TEXTURE_2D with glBindTexture
GLuint bound_texture_2d;
// texture currently bound to this unit's GL_TEXTURE_CUBE_MAP with
// glBindTexture
GLuint bound_texture_cube_map;
// texture currently bound to this unit's GL_TEXTURE_EXTERNAL_OES with
// glBindTexture
GLuint bound_texture_external_oes;
};
// Checks for single threaded access.
class SingleThreadChecker {
public:
explicit SingleThreadChecker(GLES2Implementation* gles2_implementation);
~SingleThreadChecker();
private:
GLES2Implementation* gles2_implementation_;
};
// Gets the value of the result.
template <typename T>
T GetResultAs() {
return static_cast<T>(GetResultBuffer());
}
// GpuControlClient implementation.
void OnGpuControlLostContext() final;
void OnGpuControlLostContextMaybeReentrant() final;
void OnGpuControlErrorMessage(const char* message, int32_t id) final;
void* GetResultBuffer();
int32_t GetResultShmId();
uint32_t GetResultShmOffset();
bool IsChromiumFramebufferMultisampleAvailable();
bool IsExtensionAvailableHelper(
const char* extension, ExtensionStatus* status);
// Gets the GLError through our wrapper.
GLenum GetGLError();
// Sets our wrapper for the GLError.
void SetGLError(GLenum error, const char* function_name, const char* msg);
void SetGLErrorInvalidEnum(
const char* function_name, GLenum value, const char* label);
// Returns the last error and clears it. Useful for debugging.
const std::string& GetLastError() {
return last_error_;
}
// Waits for all commands to execute.
void WaitForCmd();
// TODO(gman): These bucket functions really seem like they belong in
// CommandBufferHelper (or maybe BucketHelper?). Unfortunately they need
// a transfer buffer to function which is currently managed by this class.
// Gets the contents of a bucket.
bool GetBucketContents(uint32_t bucket_id, std::vector<int8_t>* data);
// Sets the contents of a bucket.
void SetBucketContents(uint32_t bucket_id, const void* data, size_t size);
// Sets the contents of a bucket as a string.
void SetBucketAsCString(uint32_t bucket_id, const char* str);
// Gets the contents of a bucket as a string. Returns false if there is no
// string available which is a separate case from the empty string.
bool GetBucketAsString(uint32_t bucket_id, std::string* str);
// Sets the contents of a bucket as a string.
void SetBucketAsString(uint32_t bucket_id, const std::string& str);
// Returns true if id is reserved.
bool IsBufferReservedId(GLuint id);
bool IsFramebufferReservedId(GLuint id) { return false; }
bool IsRenderbufferReservedId(GLuint id) { return false; }
bool IsTextureReservedId(GLuint id) { return false; }
bool IsVertexArrayReservedId(GLuint id) { return false; }
bool IsProgramReservedId(GLuint id) { return false; }
bool IsSamplerReservedId(GLuint id) { return false; }
bool IsTransformFeedbackReservedId(GLuint id) { return false; }
void BindBufferHelper(GLenum target, GLuint buffer);
void BindBufferBaseHelper(GLenum target, GLuint index, GLuint buffer);
void BindBufferRangeHelper(GLenum target, GLuint index, GLuint buffer,
GLintptr offset, GLsizeiptr size);
void BindFramebufferHelper(GLenum target, GLuint framebuffer);
void BindRenderbufferHelper(GLenum target, GLuint renderbuffer);
void BindSamplerHelper(GLuint unit, GLuint sampler);
void BindTextureHelper(GLenum target, GLuint texture);
void BindTransformFeedbackHelper(GLenum target, GLuint transformfeedback);
void BindVertexArrayOESHelper(GLuint array);
void UseProgramHelper(GLuint program);
void BindBufferStub(GLenum target, GLuint buffer);
void BindBufferBaseStub(GLenum target, GLuint index, GLuint buffer);
void BindBufferRangeStub(GLenum target, GLuint index, GLuint buffer,
GLintptr offset, GLsizeiptr size);
void BindFramebufferStub(GLenum target, GLuint framebuffer);
void BindRenderbufferStub(GLenum target, GLuint renderbuffer);
void BindTextureStub(GLenum target, GLuint texture);
void GenBuffersHelper(GLsizei n, const GLuint* buffers);
void GenFramebuffersHelper(GLsizei n, const GLuint* framebuffers);
void GenRenderbuffersHelper(GLsizei n, const GLuint* renderbuffers);
void GenTexturesHelper(GLsizei n, const GLuint* textures);
void GenVertexArraysOESHelper(GLsizei n, const GLuint* arrays);
void GenQueriesEXTHelper(GLsizei n, const GLuint* queries);
void GenSamplersHelper(GLsizei n, const GLuint* samplers);
void GenTransformFeedbacksHelper(GLsizei n, const GLuint* transformfeedbacks);
void DeleteBuffersHelper(GLsizei n, const GLuint* buffers);
void DeleteFramebuffersHelper(GLsizei n, const GLuint* framebuffers);
void DeleteRenderbuffersHelper(GLsizei n, const GLuint* renderbuffers);
void DeleteTexturesHelper(GLsizei n, const GLuint* textures);
bool DeleteProgramHelper(GLuint program);
bool DeleteShaderHelper(GLuint shader);
void DeleteQueriesEXTHelper(GLsizei n, const GLuint* queries);
void DeleteVertexArraysOESHelper(GLsizei n, const GLuint* arrays);
void DeleteSamplersHelper(GLsizei n, const GLuint* samplers);
void DeleteTransformFeedbacksHelper(
GLsizei n, const GLuint* transformfeedbacks);
void DeleteSyncHelper(GLsync sync);
void DeleteBuffersStub(GLsizei n, const GLuint* buffers);
void DeleteFramebuffersStub(GLsizei n, const GLuint* framebuffers);
void DeleteRenderbuffersStub(GLsizei n, const GLuint* renderbuffers);
void DeleteTexturesStub(GLsizei n, const GLuint* textures);
void DeletePathsCHROMIUMStub(GLuint first_client_id, GLsizei range);
void DeleteProgramStub(GLsizei n, const GLuint* programs);
void DeleteShaderStub(GLsizei n, const GLuint* shaders);
void DeleteVertexArraysOESStub(GLsizei n, const GLuint* arrays);
void DeleteSamplersStub(GLsizei n, const GLuint* samplers);
void DeleteTransformFeedbacksStub(
GLsizei n, const GLuint* transformfeedbacks);
void DeleteSyncStub(GLsizei n, const GLuint* syncs);
void BufferDataHelper(
GLenum target, GLsizeiptr size, const void* data, GLenum usage);
void BufferSubDataHelper(
GLenum target, GLintptr offset, GLsizeiptr size, const void* data);
void BufferSubDataHelperImpl(
GLenum target, GLintptr offset, GLsizeiptr size, const void* data,
ScopedTransferBufferPtr* buffer);
GLuint CreateImageCHROMIUMHelper(ClientBuffer buffer,
GLsizei width,
GLsizei height,
GLenum internalformat);
void DestroyImageCHROMIUMHelper(GLuint image_id);
GLuint CreateGpuMemoryBufferImageCHROMIUMHelper(GLsizei width,
GLsizei height,
GLenum internalformat,
GLenum usage);
// Helper for GetVertexAttrib
bool GetVertexAttribHelper(GLuint index, GLenum pname, uint32_t* param);
GLuint GetMaxValueInBufferCHROMIUMHelper(
GLuint buffer_id, GLsizei count, GLenum type, GLuint offset);
void WaitAllAsyncTexImage2DCHROMIUMHelper();
void RestoreElementAndArrayBuffers(bool restore);
void RestoreArrayBuffer(bool restrore);
// The pixels pointer should already account for unpack skip
// images/rows/pixels.
void TexSubImage2DImpl(GLenum target,
GLint level,
GLint xoffset,
GLint yoffset,
GLsizei width,
GLsizei height,
GLenum format,
GLenum type,
uint32_t unpadded_row_size,
const void* pixels,
uint32_t pixels_padded_row_size,
GLboolean internal,
ScopedTransferBufferPtr* buffer,
uint32_t buffer_padded_row_size);
void TexSubImage3DImpl(GLenum target,
GLint level,
GLint xoffset,
GLint yoffset,
GLint zoffset,
GLsizei width,
GLsizei height,
GLsizei depth,
GLenum format,
GLenum type,
uint32_t unpadded_row_size,
const void* pixels,
uint32_t pixels_padded_row_size,
GLboolean internal,
ScopedTransferBufferPtr* buffer,
uint32_t buffer_padded_row_size);
// Helpers for query functions.
bool GetHelper(GLenum pname, GLint* params);
GLuint GetBoundBufferHelper(GLenum target);
bool GetBooleanvHelper(GLenum pname, GLboolean* params);
bool GetBufferParameteri64vHelper(
GLenum target, GLenum pname, GLint64* params);
bool GetBufferParameterivHelper(GLenum target, GLenum pname, GLint* params);
bool GetFloatvHelper(GLenum pname, GLfloat* params);
bool GetFramebufferAttachmentParameterivHelper(
GLenum target, GLenum attachment, GLenum pname, GLint* params);
bool GetInteger64vHelper(GLenum pname, GLint64* params);
bool GetIntegervHelper(GLenum pname, GLint* params);
bool GetIntegeri_vHelper(GLenum pname, GLuint index, GLint* data);
bool GetInteger64i_vHelper(GLenum pname, GLuint index, GLint64* data);
bool GetInternalformativHelper(
GLenum target, GLenum format, GLenum pname, GLsizei bufSize,
GLint* params);
bool GetProgramivHelper(GLuint program, GLenum pname, GLint* params);
bool GetSamplerParameterfvHelper(
GLuint sampler, GLenum pname, GLfloat* params);
bool GetSamplerParameterivHelper(
GLuint sampler, GLenum pname, GLint* params);
bool GetRenderbufferParameterivHelper(
GLenum target, GLenum pname, GLint* params);
bool GetShaderivHelper(GLuint shader, GLenum pname, GLint* params);
bool GetTexParameterfvHelper(GLenum target, GLenum pname, GLfloat* params);
bool GetTexParameterivHelper(GLenum target, GLenum pname, GLint* params);
const GLubyte* GetStringHelper(GLenum name);
bool IsExtensionAvailable(const char* ext);
// Caches certain capabilties state. Return true if cached.
bool SetCapabilityState(GLenum cap, bool enabled);
IdHandlerInterface* GetIdHandler(int id_namespace) const;
RangeIdHandlerInterface* GetRangeIdHandler(int id_namespace) const;
// IdAllocators for objects that can't be shared among contexts.
// For now, used only for Queries. TODO(hj.r.chung) Should be added for
// Framebuffer and Vertex array objects.
IdAllocator* GetIdAllocator(int id_namespace) const;
void FinishHelper();
void FlushHelper();
void RunIfContextNotLost(const base::Closure& callback);
// Validate if an offset is valid, i.e., non-negative and fit into 32-bit.
// If not, generate an approriate error, and return false.
bool ValidateOffset(const char* func, GLintptr offset);
// Validate if a size is valid, i.e., non-negative and fit into 32-bit.
// If not, generate an approriate error, and return false.
bool ValidateSize(const char* func, GLsizeiptr offset);
// Remove the transfer buffer from the buffer tracker. For buffers used
// asynchronously the memory is free:ed if the upload has completed. For
// other buffers, the memory is either free:ed immediately or free:ed pending
// a token.
void RemoveTransferBuffer(BufferTracker::Buffer* buffer);
bool GetBoundPixelTransferBuffer(
GLenum target, const char* function_name, GLuint* buffer_id);
BufferTracker::Buffer* GetBoundPixelTransferBufferIfValid(
GLuint buffer_id,
const char* function_name, GLuint offset, GLsizei size);
// Pack 2D arrays of char into a bucket.
// Helper function for ShaderSource(), TransformFeedbackVaryings(), etc.
bool PackStringsToBucket(GLsizei count,
const char* const* str,
const GLint* length,
const char* func_name);
const std::string& GetLogPrefix() const;
bool PrepareInstancedPathCommand(const char* function_name,
GLsizei num_paths,
GLenum path_name_type,
const void* paths,
GLenum transform_type,
const GLfloat* transform_values,
ScopedTransferBufferPtr* buffer,
uint32_t* out_paths_shm_id,
size_t* out_paths_offset,
uint32_t* out_transforms_shm_id,
size_t* out_transforms_offset);
#if defined(GL_CLIENT_FAIL_GL_ERRORS)
void CheckGLError();
void FailGLError(GLenum error);
#else
void CheckGLError() { }
void FailGLError(GLenum /* error */) { }
#endif
void RemoveMappedBufferRangeByTarget(GLenum target);
void RemoveMappedBufferRangeById(GLuint buffer);
void ClearMappedBufferRangeMap();
void DrawElementsImpl(GLenum mode, GLsizei count, GLenum type,
const void* indices, const char* func_name);
void UpdateCachedExtensionsIfNeeded();
void InvalidateCachedExtensions();
PixelStoreParams GetUnpackParameters(Dimension dimension);
GLES2Util util_;
GLES2CmdHelper* helper_;
TransferBufferInterface* transfer_buffer_;
std::string last_error_;
DebugMarkerManager debug_marker_manager_;
std::string this_in_hex_;
std::queue<int32_t> swap_buffers_tokens_;
std::queue<int32_t> rate_limit_tokens_;
ExtensionStatus chromium_framebuffer_multisample_;
GLStaticState static_state_;
ClientContextState state_;
// pack alignment as last set by glPixelStorei
GLint pack_alignment_;
// pack row length as last set by glPixelStorei
GLint pack_row_length_;
// pack skip pixels as last set by glPixelStorei
GLint pack_skip_pixels_;
// pack skip rows as last set by glPixelStorei
GLint pack_skip_rows_;
// unpack alignment as last set by glPixelStorei
GLint unpack_alignment_;
// unpack row length as last set by glPixelStorei
GLint unpack_row_length_;
// unpack image height as last set by glPixelStorei
GLint unpack_image_height_;
// unpack skip rows as last set by glPixelStorei
GLint unpack_skip_rows_;
// unpack skip pixels as last set by glPixelStorei
GLint unpack_skip_pixels_;
// unpack skip images as last set by glPixelStorei
GLint unpack_skip_images_;
std::unique_ptr<TextureUnit[]> texture_units_;
// 0 to gl_state_.max_combined_texture_image_units.
GLuint active_texture_unit_;
GLuint bound_framebuffer_;
GLuint bound_read_framebuffer_;
GLuint bound_renderbuffer_;
// The program in use by glUseProgram
GLuint current_program_;
GLuint bound_array_buffer_;
GLuint bound_copy_read_buffer_;
GLuint bound_copy_write_buffer_;
GLuint bound_pixel_pack_buffer_;
GLuint bound_pixel_unpack_buffer_;
GLuint bound_transform_feedback_buffer_;
GLuint bound_uniform_buffer_;
// The currently bound pixel transfer buffers.
GLuint bound_pixel_pack_transfer_buffer_id_;
GLuint bound_pixel_unpack_transfer_buffer_id_;
// Client side management for vertex array objects. Needed to correctly
// track client side arrays.
std::unique_ptr<VertexArrayObjectManager> vertex_array_object_manager_;
GLuint reserved_ids_[2];
// Current GL error bits.
uint32_t error_bits_;
// Whether or not to print debugging info.
bool debug_;
// When true, the context is lost when a GL_OUT_OF_MEMORY error occurs.
const bool lose_context_when_out_of_memory_;
// Whether or not to support client side arrays.
const bool support_client_side_arrays_;
// Used to check for single threaded access.
int use_count_;
// Changed every time a flush or finish occurs.
uint32_t flush_id_;
// Maximum amount of extra memory from the mapped memory pool to use when
// needing to transfer something exceeding the default transfer buffer.
// This should be 0 for low memory devices since they are already memory
// constrained.
const uint32_t max_extra_transfer_buffer_size_;
// Set of strings returned from glGetString. We need to cache these because
// the pointer passed back to the client has to remain valid for eternity.
std::set<std::string> gl_strings_;
typedef std::map<const void*, MappedBuffer> MappedBufferMap;
MappedBufferMap mapped_buffers_;
// TODO(zmo): Consolidate |mapped_buffers_| and |mapped_buffer_range_map_|.
typedef base::hash_map<GLuint, MappedBuffer> MappedBufferRangeMap;
MappedBufferRangeMap mapped_buffer_range_map_;
typedef std::map<const void*, MappedTexture> MappedTextureMap;
MappedTextureMap mapped_textures_;
std::unique_ptr<MappedMemoryManager> mapped_memory_;
scoped_refptr<ShareGroup> share_group_;
ShareGroupContextData share_group_context_data_;
std::unique_ptr<QueryTracker> query_tracker_;
std::unique_ptr<IdAllocator> query_id_allocator_;
std::unique_ptr<BufferTracker> buffer_tracker_;
base::Callback<void(const char*, int32_t)> error_message_callback_;
base::Closure lost_context_callback_;
bool lost_context_callback_run_ = false;
int current_trace_stack_;
GpuControl* gpu_control_;
Capabilities capabilities_;
// Flag to indicate whether the implementation can retain resources, or
// whether it should aggressively free them.
bool aggressively_free_resources_;
// Result of last GetString(GL_EXTENSIONS), used to keep
// GetString(GL_EXTENSIONS), GetStringi(GL_EXTENSIONS, index) and
// GetIntegerv(GL_NUM_EXTENSIONS) in sync. This points to gl_strings, valid
// forever.
const char* cached_extension_string_;
// Populated if cached_extension_string_ != nullptr. These point to
// gl_strings, valid forever.
std::vector<const char*> cached_extensions_;
base::WeakPtrFactory<GLES2Implementation> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(GLES2Implementation);
};
inline bool GLES2Implementation::GetBufferParameteri64vHelper(
GLenum /* target */, GLenum /* pname */, GLint64* /* params */) {
return false;
}
inline bool GLES2Implementation::GetBufferParameterivHelper(
GLenum /* target */, GLenum /* pname */, GLint* /* params */) {
return false;
}
inline bool GLES2Implementation::GetFramebufferAttachmentParameterivHelper(
GLenum /* target */,
GLenum /* attachment */,
GLenum /* pname */,
GLint* /* params */) {
return false;
}
inline bool GLES2Implementation::GetRenderbufferParameterivHelper(
GLenum /* target */, GLenum /* pname */, GLint* /* params */) {
return false;
}
inline bool GLES2Implementation::GetShaderivHelper(
GLuint /* shader */, GLenum /* pname */, GLint* /* params */) {
return false;
}
inline bool GLES2Implementation::GetTexParameterfvHelper(
GLenum /* target */, GLenum /* pname */, GLfloat* /* params */) {
return false;
}
inline bool GLES2Implementation::GetTexParameterivHelper(
GLenum /* target */, GLenum /* pname */, GLint* /* params */) {
return false;
}
} // namespace gles2
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_