gecko-dev/gfx/layers/MacIOSurfaceImage.h

65 строки
1.9 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFX_MACIOSURFACEIMAGE_H
#define GFX_MACIOSURFACEIMAGE_H
#include "ImageContainer.h"
#include "mozilla/gfx/MacIOSurface.h"
#include "mozilla/layers/TextureClient.h"
#include "gfxImageSurface.h"
namespace mozilla {
namespace layers {
class MacIOSurfaceImage : public Image,
public ISharedImage {
public:
void SetSurface(MacIOSurface* aSurface) { mSurface = aSurface; }
MacIOSurface* GetSurface() { return mSurface; }
gfxIntSize GetSize() {
return gfxIntSize(mSurface->GetDevicePixelWidth(), mSurface->GetDevicePixelHeight());
}
virtual ISharedImage* AsSharedImage() MOZ_OVERRIDE { return this; }
virtual already_AddRefed<gfxASurface> GetAsSurface() {
mSurface->Lock();
size_t bytesPerRow = mSurface->GetBytesPerRow();
size_t ioWidth = mSurface->GetDevicePixelWidth();
size_t ioHeight = mSurface->GetDevicePixelHeight();
unsigned char* ioData = (unsigned char*)mSurface->GetBaseAddress();
nsRefPtr<gfxImageSurface> imgSurface =
new gfxImageSurface(gfxIntSize(ioWidth, ioHeight), gfxImageFormatARGB32);
for (size_t i = 0; i < ioHeight; i++) {
memcpy(imgSurface->Data() + i * imgSurface->Stride(),
ioData + i * bytesPerRow, ioWidth * 4);
}
mSurface->Unlock();
return imgSurface.forget();
}
virtual TextureClient* GetTextureClient() MOZ_OVERRIDE;
virtual uint8_t* GetBuffer() MOZ_OVERRIDE { return nullptr; }
MacIOSurfaceImage() : Image(nullptr, MAC_IOSURFACE) {}
private:
RefPtr<MacIOSurface> mSurface;
RefPtr<TextureClient> mTextureClient;
};
} // layers
} // mozilla
#endif // GFX_SHAREDTEXTUREIMAGE_H