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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 <stdlib.h>
#include "base/logging.h"
#include "o3d/gpu_plugin/np_utils/np_utils.h"
#include "o3d/gpu_plugin/gpu_plugin_object.h"
#include "o3d/gpu_plugin/gpu_processor.h"
namespace gpu_plugin {
const NPUTF8 GPUPluginObject::kPluginType[] =
"application/vnd.google.chrome.gpu-plugin";
GPUPluginObject::GPUPluginObject(NPP npp)
: npp_(npp),
status_(kWaitingForNew),
command_buffer_(NPCreateObject<CommandBuffer>(npp)),
processor_(new GPUProcessor(npp, command_buffer_.Get())) {
memset(&window_, 0, sizeof(window_));
}
NPError GPUPluginObject::New(NPMIMEType plugin_type,
int16 argc,
char* argn[],
char* argv[],
NPSavedData* saved) {
if (status_ != kWaitingForNew)
return NPERR_GENERIC_ERROR;
status_ = kWaitingForSetWindow;
return NPERR_NO_ERROR;
}
NPError GPUPluginObject::SetWindow(NPWindow* new_window) {
if (status_ == kWaitingForNew || status_ == kDestroyed)
return NPERR_GENERIC_ERROR;
// PlatformSpecificSetWindow advances the status depending on what happens.
NPError error = PlatformSpecificSetWindow(new_window);
if (error == NPERR_NO_ERROR) {
window_ = *new_window;
if (event_sync_.Get()) {
NPInvokeVoid(npp_,
event_sync_,
"resize",
static_cast<int32>(window_.width),
static_cast<int32>(window_.height));
}
} else {
memset(&window_, 0, sizeof(window_));
}
return error;
}
int16 GPUPluginObject::HandleEvent(NPEvent* event) {
return 0;
}
NPError GPUPluginObject::Destroy(NPSavedData** saved) {
if (status_ == kWaitingForNew || status_ == kDestroyed)
return NPERR_GENERIC_ERROR;
if (command_buffer_.Get()) {
command_buffer_->SetPutOffsetChangeCallback(NULL);
}
status_ = kDestroyed;
return NPERR_NO_ERROR;
}
void GPUPluginObject::Release() {
DCHECK(status_ == kWaitingForNew || status_ == kDestroyed);
NPBrowser::get()->ReleaseObject(this);
}
NPObject*GPUPluginObject::GetScriptableNPObject() {
NPBrowser::get()->RetainObject(this);
return this;
}
NPObjectPointer<NPObject> GPUPluginObject::OpenCommandBuffer() {
if (status_ == kInitializationSuccessful)
return command_buffer_;
// SetWindow must have been called before OpenCommandBuffer.
// PlatformSpecificSetWindow advances the status to
// kWaitingForOpenCommandBuffer.
if (status_ != kWaitingForOpenCommandBuffer)
return NPObjectPointer<NPObject>();
NPObjectPointer<NPObject> window = NPObjectPointer<NPObject>::FromReturned(
NPBrowser::get()->GetWindowNPObject(npp_));
if (!window.Get())
return NPObjectPointer<NPObject>();
NPObjectPointer<NPObject> chromium;
if (!NPGetProperty(npp_, window, "chromium", &chromium)) {
return NPObjectPointer<NPObject>();
}
NPObjectPointer<NPObject> system;
if (!NPGetProperty(npp_, chromium, "system", &system)) {
return NPObjectPointer<NPObject>();
}
NPObjectPointer<NPObject> ring_buffer;
if (!NPInvoke(npp_, system, "createSharedMemory", kCommandBufferSize,
&ring_buffer)) {
return NPObjectPointer<NPObject>();
}
if (!ring_buffer.Get()) {
return NPObjectPointer<NPObject>();
}
if (command_buffer_->Initialize(ring_buffer)) {
if (processor_->Initialize(static_cast<HWND>(window_.window))) {
command_buffer_->SetPutOffsetChangeCallback(
NewCallback(processor_.get(),
&GPUProcessor::ProcessCommands));
status_ = kInitializationSuccessful;
return command_buffer_;
}
}
return NPObjectPointer<CommandBuffer>();
}
} // namespace gpu_plugin
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