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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/ipc/gl_in_process_context.h"
#include <GLES2/gl2.h>
#include "base/task/single_thread_task_runner.h"
#include "build/build_config.h"
#ifndef GL_GLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES 1
#endif
#include <GLES2/gl2ext.h>
#include <GLES2/gl2extchromium.h>
#include <utility>
#include "base/logging.h"
#include "gpu/command_buffer/client/gles2_cmd_helper.h"
#include "gpu/command_buffer/client/shared_memory_limits.h"
#include "gpu/command_buffer/client/transfer_buffer.h"
#include "gpu/command_buffer/common/command_buffer.h"
#include "gpu/command_buffer/common/constants.h"
#include "gpu/command_buffer/service/gpu_task_scheduler_helper.h"
#include "gpu/config/gpu_feature_info.h"
#include "gpu/skia_bindings/gles2_implementation_with_grcontext_support.h"
#include "ui/gfx/geometry/size.h"
#if BUILDFLAG(IS_ANDROID)
#include "ui/gl/android/surface_texture.h"
#endif
namespace gpu {
GLInProcessContext::GLInProcessContext() = default;
GLInProcessContext::~GLInProcessContext() = default;
const Capabilities& GLInProcessContext::GetCapabilities() const {
return command_buffer_->GetCapabilities();
}
const GpuFeatureInfo& GLInProcessContext::GetGpuFeatureInfo() const {
return command_buffer_->GetGpuFeatureInfo();
}
gles2::GLES2Implementation* GLInProcessContext::GetImplementation() {
return gles2_implementation_.get();
}
SharedImageInterface* GLInProcessContext::GetSharedImageInterface() {
return command_buffer_->GetSharedImageInterface();
}
ContextResult GLInProcessContext::Initialize(
CommandBufferTaskExecutor* task_executor,
const ContextCreationAttribs& attribs,
const SharedMemoryLimits& mem_limits) {
DCHECK(base::SingleThreadTaskRunner::GetCurrentDefault());
command_buffer_ = std::make_unique<InProcessCommandBuffer>(
task_executor, GURL("chrome://gpu/GLInProcessContext::Initialize"));
auto result = command_buffer_->Initialize(
attribs, base::SingleThreadTaskRunner::GetCurrentDefault(),
/*gr_shader_cache=*/nullptr,
/*use_shader_cache_shm_count=*/nullptr);
if (result != ContextResult::kSuccess) {
DLOG(ERROR) << "Failed to initialize InProcessCommmandBuffer";
return result;
}
// Create the GLES2 helper, which writes the command buffer protocol.
gles2_helper_ =
std::make_unique<gles2::GLES2CmdHelper>(command_buffer_.get());
result = gles2_helper_->Initialize(mem_limits.command_buffer_size);
if (result != ContextResult::kSuccess) {
LOG(ERROR) << "Failed to initialize GLES2CmdHelper";
return result;
}
// Create a transfer buffer.
transfer_buffer_ = std::make_unique<TransferBuffer>(gles2_helper_.get());
// Check for consistency.
DCHECK(!attribs.bind_generates_resource);
const bool bind_generates_resource = false;
const bool support_client_side_arrays = false;
// Create the object exposing the OpenGL API.
gles2_implementation_ =
std::make_unique<skia_bindings::GLES2ImplementationWithGrContextSupport>(
gles2_helper_.get(), /*share_group=*/nullptr, transfer_buffer_.get(),
bind_generates_resource, attribs.lose_context_when_out_of_memory,
support_client_side_arrays, command_buffer_.get());
result = gles2_implementation_->Initialize(mem_limits);
return result;
}
} // namespace gpu
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