blob: 738606929fd66f0c8d4bfa1a15dcf2087e3b160c [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.
#include "gpu/command_buffer/client/gl_in_process_context.h"
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <set>
#include <utility>
#include <vector>
#include <GLES2/gl2.h>
#ifndef GL_GLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES 1
#endif
#include <GLES2/gl2ext.h>
#include <GLES2/gl2extchromium.h>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/message_loop/message_loop.h"
#include "gpu/command_buffer/client/gles2_cmd_helper.h"
#include "gpu/command_buffer/client/gles2_implementation.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 "ui/gfx/geometry/size.h"
#include "ui/gl/gl_image.h"
#if defined(OS_ANDROID)
#include "ui/gl/android/surface_texture.h"
#endif
namespace gpu {
namespace {
class GLInProcessContextImpl
: public GLInProcessContext,
public base::SupportsWeakPtr<GLInProcessContextImpl> {
public:
GLInProcessContextImpl();
~GLInProcessContextImpl() override;
bool Initialize(scoped_refptr<gfx::GLSurface> surface,
bool is_offscreen,
GLInProcessContext* share_context,
gfx::AcceleratedWidget window,
const gfx::Size& size,
const gpu::gles2::ContextCreationAttribHelper& attribs,
gfx::GpuPreference gpu_preference,
const scoped_refptr<InProcessCommandBuffer::Service>& service,
const SharedMemoryLimits& mem_limits,
GpuMemoryBufferManager* gpu_memory_buffer_manager,
ImageFactory* image_factory);
// GLInProcessContext implementation:
gles2::GLES2Implementation* GetImplementation() override;
void SetLock(base::Lock* lock) override;
private:
void Destroy();
void OnSignalSyncPoint(const base::Closure& callback);
std::unique_ptr<gles2::GLES2CmdHelper> gles2_helper_;
std::unique_ptr<TransferBuffer> transfer_buffer_;
std::unique_ptr<gles2::GLES2Implementation> gles2_implementation_;
std::unique_ptr<InProcessCommandBuffer> command_buffer_;
DISALLOW_COPY_AND_ASSIGN(GLInProcessContextImpl);
};
GLInProcessContextImpl::GLInProcessContextImpl() = default;
GLInProcessContextImpl::~GLInProcessContextImpl() {
Destroy();
}
gles2::GLES2Implementation* GLInProcessContextImpl::GetImplementation() {
return gles2_implementation_.get();
}
void GLInProcessContextImpl::SetLock(base::Lock* lock) {
NOTREACHED();
}
bool GLInProcessContextImpl::Initialize(
scoped_refptr<gfx::GLSurface> surface,
bool is_offscreen,
GLInProcessContext* share_context,
gfx::AcceleratedWidget window,
const gfx::Size& size,
const gles2::ContextCreationAttribHelper& attribs,
gfx::GpuPreference gpu_preference,
const scoped_refptr<InProcessCommandBuffer::Service>& service,
const SharedMemoryLimits& mem_limits,
GpuMemoryBufferManager* gpu_memory_buffer_manager,
ImageFactory* image_factory) {
DCHECK(size.width() >= 0 && size.height() >= 0);
std::vector<int32_t> attrib_vector;
attribs.Serialize(&attrib_vector);
command_buffer_.reset(new InProcessCommandBuffer(service));
scoped_refptr<gles2::ShareGroup> share_group;
InProcessCommandBuffer* share_command_buffer = nullptr;
if (share_context) {
GLInProcessContextImpl* impl =
static_cast<GLInProcessContextImpl*>(share_context);
share_group = impl->gles2_implementation_->share_group();
share_command_buffer = impl->command_buffer_.get();
DCHECK(share_group);
DCHECK(share_command_buffer);
}
if (!command_buffer_->Initialize(surface,
is_offscreen,
window,
size,
attrib_vector,
gpu_preference,
share_command_buffer,
gpu_memory_buffer_manager,
image_factory)) {
DLOG(ERROR) << "Failed to initialize InProcessCommmandBuffer";
return false;
}
// Create the GLES2 helper, which writes the command buffer protocol.
gles2_helper_.reset(new gles2::GLES2CmdHelper(command_buffer_.get()));
if (!gles2_helper_->Initialize(mem_limits.command_buffer_size)) {
LOG(ERROR) << "Failed to initialize GLES2CmdHelper";
Destroy();
return false;
}
// Create a transfer buffer.
transfer_buffer_.reset(new 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_.reset(
new gles2::GLES2Implementation(gles2_helper_.get(),
share_group.get(),
transfer_buffer_.get(),
bind_generates_resource,
attribs.lose_context_when_out_of_memory,
support_client_side_arrays,
command_buffer_.get()));
if (!gles2_implementation_->Initialize(
mem_limits.start_transfer_buffer_size,
mem_limits.min_transfer_buffer_size,
mem_limits.max_transfer_buffer_size,
mem_limits.mapped_memory_reclaim_limit)) {
return false;
}
return true;
}
void GLInProcessContextImpl::Destroy() {
if (gles2_implementation_) {
// First flush the context to ensure that any pending frees of resources
// are completed. Otherwise, if this context is part of a share group,
// those resources might leak. Also, any remaining side effects of commands
// issued on this context might not be visible to other contexts in the
// share group.
gles2_implementation_->Flush();
gles2_implementation_.reset();
}
transfer_buffer_.reset();
gles2_helper_.reset();
command_buffer_.reset();
}
} // anonymous namespace
// static
GLInProcessContext* GLInProcessContext::Create(
scoped_refptr<gpu::InProcessCommandBuffer::Service> service,
scoped_refptr<gfx::GLSurface> surface,
bool is_offscreen,
gfx::AcceleratedWidget window,
const gfx::Size& size,
GLInProcessContext* share_context,
const ::gpu::gles2::ContextCreationAttribHelper& attribs,
gfx::GpuPreference gpu_preference,
const SharedMemoryLimits& memory_limits,
GpuMemoryBufferManager* gpu_memory_buffer_manager,
ImageFactory* image_factory) {
if (surface.get()) {
DCHECK_EQ(surface->IsOffscreen(), is_offscreen);
DCHECK(surface->GetSize() == size);
DCHECK_EQ(gfx::kNullAcceleratedWidget, window);
}
std::unique_ptr<GLInProcessContextImpl> context(new GLInProcessContextImpl);
if (!context->Initialize(surface, is_offscreen, share_context, window, size,
attribs, gpu_preference, service, memory_limits,
gpu_memory_buffer_manager, image_factory))
return NULL;
return context.release();
}
} // namespace gpu