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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 CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_GLX_H_
#define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_GLX_H_
#include "base/basictypes.h"
#include "build/build_config.h"
#include "chrome/browser/renderer_host/backing_store.h"
#include "chrome/common/x11_util.h"
class BackingStoreGLX : public BackingStore {
public:
// Create a backing store on the X server. The visual is an Xlib Visual
// describing the format of the target window and the depth is the color
// depth of the X window which will be drawn into.
BackingStoreGLX(RenderWidgetHost* widget,
const gfx::Size& size,
void* visual,
int depth);
// This is for unittesting only. An object constructed using this constructor
// will silently ignore all paints
BackingStoreGLX(RenderWidgetHost* widget, const gfx::Size& size);
virtual ~BackingStoreGLX();
Display* display() const { return display_; }
XID root_window() const { return root_window_; }
// Copy from the server-side backing store to the target window
// display: the display of the backing store and target window
// damage: the area to copy
// target: the X id of the target window
void ShowRect(const gfx::Rect& damage, XID target);
// Paints the server-side backing store data to a SkBitmap. On failure, the
// return bitmap will be isNull().
SkBitmap PaintRectToBitmap(const gfx::Rect& rect);
#if defined(TOOLKIT_GTK)
// Paint the backing store into the target's |dest_rect|.
void PaintToRect(const gfx::Rect& dest_rect, GdkDrawable* target);
#endif
// BackingStore implementation.
virtual size_t MemorySize();
virtual void PaintRect(base::ProcessHandle process,
TransportDIB* bitmap,
const gfx::Rect& bitmap_rect,
const gfx::Rect& copy_rect);
virtual void ScrollRect(int dx, int dy,
const gfx::Rect& clip_rect,
const gfx::Size& view_size);
private:
Display* const display_;
// The parent window for this backing store.
const XID root_window_;
unsigned int texture_id_; // 0 when uninitialized.
// The size of the texture loaded into GL. This is 0x0 when there is no
// texture loaded. This may be different than the size of the backing store
// because we could have been resized without yet getting the updated
// bitmap.
gfx::Size texture_size_;
DISALLOW_COPY_AND_ASSIGN(BackingStoreGLX);
};
#endif // CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_GLX_H_
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