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// Copyright (c) 2006-2008 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 <windows.h>
#include "o3d/gpu_plugin/gpu_processor.h"
namespace gpu_plugin {
GPUProcessor::GPUProcessor(NPP npp,
CommandBuffer* command_buffer)
: npp_(npp),
command_buffer_(command_buffer),
commands_per_update_(100) {
DCHECK(command_buffer);
gapi_.reset(new GPUGAPIInterface);
decoder_.reset(new command_buffer::o3d::GAPIDecoder(gapi_.get()));
decoder_->set_engine(this);
}
GPUProcessor::GPUProcessor(NPP npp,
CommandBuffer* command_buffer,
GPUGAPIInterface* gapi,
command_buffer::o3d::GAPIDecoder* decoder,
command_buffer::CommandParser* parser,
int commands_per_update)
: npp_(npp),
command_buffer_(command_buffer),
commands_per_update_(commands_per_update) {
DCHECK(command_buffer);
gapi_.reset(gapi);
decoder_.reset(decoder);
parser_.reset(parser);
}
bool GPUProcessor::Initialize(HWND handle) {
DCHECK(handle);
// Cannot reinitialize.
if (gapi_->hwnd() != NULL)
return false;
// Map the ring buffer and create the parser.
NPObjectPointer<NPObject> ring_buffer =
command_buffer_->GetRingBuffer();
if (ring_buffer.Get()) {
size_t size;
void* ptr = NPBrowser::get()->MapMemory(npp_,
ring_buffer.Get(),
&size);
if (ptr == NULL) {
return false;
}
parser_.reset(new command_buffer::CommandParser(ptr, size, 0, size, 0,
decoder_.get()));
} else {
parser_.reset(new command_buffer::CommandParser(NULL, 0, 0, 0, 0,
decoder_.get()));
}
// Initialize GAPI immediately if the window handle is valid.
gapi_->set_hwnd(handle);
return gapi_->Initialize();
}
void GPUProcessor::Destroy() {
// Destroy GAPI if window handle has not already become invalid.
if (gapi_->hwnd()) {
gapi_->Destroy();
gapi_->set_hwnd(NULL);
}
}
bool GPUProcessor::SetWindow(HWND handle, int width, int height) {
if (handle == NULL) {
// Destroy GAPI when the window handle becomes invalid.
Destroy();
return true;
} else {
return Initialize(handle);
}
}
} // namespace gpu_plugin
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