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// Copyright 2014 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 "mojo/gles2/gles2_context.h"
#include "gpu/command_buffer/client/gles2_cmd_helper.h"
#include "gpu/command_buffer/client/gles2_implementation.h"
#include "gpu/command_buffer/client/transfer_buffer.h"
#include "mojo/public/c/gles2/gles2.h"
#include "mojo/public/cpp/system/core.h"
namespace mojo {
namespace gles2 {
namespace {
const size_t kDefaultCommandBufferSize = 1024 * 1024;
const size_t kDefaultStartTransferBufferSize = 1 * 1024 * 1024;
const size_t kDefaultMinTransferBufferSize = 1 * 256 * 1024;
const size_t kDefaultMaxTransferBufferSize = 16 * 1024 * 1024;
}
GLES2Context::GLES2Context(const MojoAsyncWaiter* async_waiter,
ScopedMessagePipeHandle command_buffer_handle,
MojoGLES2ContextLost lost_callback,
MojoGLES2DrawAnimationFrame animation_callback,
void* closure)
: command_buffer_(this, async_waiter, command_buffer_handle.Pass()),
lost_callback_(lost_callback),
animation_callback_(animation_callback),
closure_(closure) {}
GLES2Context::~GLES2Context() {}
bool GLES2Context::Initialize() {
if (!command_buffer_.Initialize())
return false;
gles2_helper_.reset(new gpu::gles2::GLES2CmdHelper(&command_buffer_));
if (!gles2_helper_->Initialize(kDefaultCommandBufferSize))
return false;
gles2_helper_->SetAutomaticFlushes(false);
transfer_buffer_.reset(new gpu::TransferBuffer(gles2_helper_.get()));
bool bind_generates_resource = true;
// TODO(piman): Some contexts (such as compositor) want this to be true, so
// this needs to be a public parameter.
bool lose_context_when_out_of_memory = false;
implementation_.reset(
new gpu::gles2::GLES2Implementation(gles2_helper_.get(),
NULL,
transfer_buffer_.get(),
bind_generates_resource,
lose_context_when_out_of_memory,
&command_buffer_));
return implementation_->Initialize(kDefaultStartTransferBufferSize,
kDefaultMinTransferBufferSize,
kDefaultMaxTransferBufferSize,
gpu::gles2::GLES2Implementation::kNoLimit);
}
void GLES2Context::RequestAnimationFrames() {
command_buffer_.RequestAnimationFrames();
}
void GLES2Context::CancelAnimationFrames() {
command_buffer_.CancelAnimationFrames();
}
void GLES2Context::ContextLost() { lost_callback_(closure_); }
void GLES2Context::DrawAnimationFrame() { animation_callback_(closure_); }
} // namespace gles2
} // namespace mojo
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