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/*
Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef GraphicsSurface_h
#define GraphicsSurface_h
#if USE(GRAPHICS_SURFACE)
#include "GraphicsContext.h"
#include "GraphicsContext3D.h"
#include "GraphicsSurfaceToken.h"
#include "IntRect.h"
#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#if OS(DARWIN)
typedef struct __IOSurface* IOSurfaceRef;
typedef IOSurfaceRef PlatformGraphicsSurface;
#endif
#if OS(LINUX)
typedef uint32_t PlatformGraphicsSurface;
#endif
#if OS(WINDOWS)
typedef HANDLE PlatformGraphicsSurface;
#endif
namespace WebCore {
class BitmapTexture;
class TextureMapper;
struct GraphicsSurfacePrivate;
class GraphicsSurface : public RefCounted<GraphicsSurface> {
public:
enum Flag {
SupportsAlpha = 0x01,
SupportsSoftwareWrite = 0x02,
SupportsSoftwareRead = 0x04,
SupportsTextureTarget = 0x08,
SupportsTextureSource = 0x10,
SupportsCopyToTexture = 0x20,
SupportsCopyFromTexture = 0x40,
SupportsSharing = 0x80,
SupportsSingleBuffered = 0x100
};
enum LockOption {
RetainPixels = 0x01,
ReadOnly = 0x02
};
typedef int Flags;
typedef int LockOptions;
Flags flags() const { return m_flags; }
IntSize size() const;
static PassRefPtr<GraphicsSurface> create(const IntSize&, Flags, const PlatformGraphicsContext3D shareContext = 0);
static PassRefPtr<GraphicsSurface> create(const IntSize&, Flags, const GraphicsSurfaceToken&);
void copyToGLTexture(uint32_t target, uint32_t texture, const IntRect& targetRect, const IntPoint& sourceOffset);
void copyFromTexture(uint32_t texture, const IntRect& sourceRect);
void paintToTextureMapper(TextureMapper*, const FloatRect& targetRect, const TransformationMatrix&, float opacity);
uint32_t frontBuffer();
uint32_t swapBuffers();
GraphicsSurfaceToken exportToken();
uint32_t getTextureID();
PassOwnPtr<GraphicsContext> beginPaint(const IntRect&, LockOptions);
PassRefPtr<Image> createReadOnlyImage(const IntRect&);
~GraphicsSurface();
protected:
static PassRefPtr<GraphicsSurface> platformCreate(const IntSize&, Flags, const PlatformGraphicsContext3D);
static PassRefPtr<GraphicsSurface> platformImport(const IntSize&, Flags, const GraphicsSurfaceToken&);
GraphicsSurfaceToken platformExport();
void platformDestroy();
uint32_t platformGetTextureID();
char* platformLock(const IntRect&, int* stride, LockOptions);
void platformUnlock();
void platformCopyToGLTexture(uint32_t target, uint32_t texture, const IntRect&, const IntPoint&);
void platformCopyFromTexture(uint32_t texture, const IntRect& sourceRect);
void platformPaintToTextureMapper(TextureMapper*, const FloatRect& targetRect, const TransformationMatrix&, float opacity);
uint32_t platformFrontBuffer() const;
uint32_t platformSwapBuffers();
IntSize platformSize() const;
PassOwnPtr<GraphicsContext> platformBeginPaint(const IntSize&, char* bits, int stride);
protected:
LockOptions m_lockOptions;
Flags m_flags;
private:
GraphicsSurface(const IntSize&, Flags);
#if PLATFORM(QT)
static void didReleaseImage(void*);
#endif
private:
uint32_t m_fbo;
GraphicsSurfacePrivate* m_private;
};
}
#endif // USE(GRAPHICS_SURFACE)
#endif // GraphicsSurface_h
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