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// Copyright (c) 2010 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.
#ifndef WEBKIT_GLUE_PLUGINS_MAC_ACCELERATED_SURFACE_CONTAINER_MANAGER_H_
#define WEBKIT_GLUE_PLUGINS_MAC_ACCELERATED_SURFACE_CONTAINER_MANAGER_H_
#include <OpenGL/OpenGL.h>
#include <map>
#include <vector>
#include "app/gfx/native_widget_types.h"
#include "app/surface/transport_dib.h"
#include "base/basictypes.h"
namespace webkit_glue {
struct WebPluginGeometry;
}
class MacAcceleratedSurfaceContainer;
// Helper class that manages the backing store and on-screen rendering
// of instances of the GPU plugin on the Mac.
class MacAcceleratedSurfaceContainerManager {
public:
MacAcceleratedSurfaceContainerManager();
// Allocates a new "fake" PluginWindowHandle, which is used as the
// key for the other operations.
gfx::PluginWindowHandle AllocateFakePluginWindowHandle();
// Destroys a fake PluginWindowHandle and associated storage.
void DestroyFakePluginWindowHandle(gfx::PluginWindowHandle id);
// Sets the size and backing store of the plugin instance. There are two
// versions: the IOSurface version is used on systems where the IOSurface
// API is supported (Mac OS X 10.6 and later); the TransportDIB is used on
// Mac OS X 10.5 and earlier.
void SetSizeAndIOSurface(gfx::PluginWindowHandle id,
int32 width,
int32 height,
uint64 io_surface_identifier);
void SetSizeAndTransportDIB(gfx::PluginWindowHandle id,
int32 width,
int32 height,
TransportDIB::Handle transport_dib);
// Takes an update from WebKit about a plugin's position and size and moves
// the plugin accordingly.
void MovePluginContainer(const webkit_glue::WebPluginGeometry& move);
// Draws all of the managed plugin containers into the given OpenGL
// context, which must already be current.
void Draw(CGLContextObj context);
// Called by the container to enqueue its OpenGL texture objects for
// deletion.
void EnqueueTextureForDeletion(GLuint texture);
private:
uint32 current_id_;
// Maps a "fake" plugin window handle to the corresponding container.
MacAcceleratedSurfaceContainer* MapIDToContainer(gfx::PluginWindowHandle id);
// A map that associates plugin window handles with their containers.
typedef std::map<gfx::PluginWindowHandle, MacAcceleratedSurfaceContainer*>
PluginWindowToContainerMap;
PluginWindowToContainerMap plugin_window_to_container_map_;
// A list of OpenGL textures waiting to be deleted
std::vector<GLuint> textures_pending_deletion_;
DISALLOW_COPY_AND_ASSIGN(MacAcceleratedSurfaceContainerManager);
};
#endif // WEBKIT_GLUE_PLUGINS_MAC_ACCELERATED_SURFACE_CONTAINER_MANAGER_H_
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