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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkImage_Base.h"
#include "SkImagePriv.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkSurface.h"
#include "GrContext.h"
#include "GrTexture.h"
class SkImage_Gpu : public SkImage_Base {
public:
SK_DECLARE_INST_COUNT(SkImage_Gpu)
SkImage_Gpu(const SkBitmap&, int sampleCountForNewSurfaces);
void onDraw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) const SK_OVERRIDE;
void onDrawRect(SkCanvas*, const SkRect* src, const SkRect& dst,
const SkPaint*) const SK_OVERRIDE;
SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) const SK_OVERRIDE;
GrTexture* onGetTexture() const SK_OVERRIDE;
bool getROPixels(SkBitmap*) const SK_OVERRIDE;
GrTexture* getTexture() const { return fBitmap.getTexture(); }
SkShader* onNewShader(SkShader::TileMode,
SkShader::TileMode,
const SkMatrix* localMatrix) const SK_OVERRIDE;
bool isOpaque() const SK_OVERRIDE;
private:
SkBitmap fBitmap;
const int fSampleCountForNewSurfaces; // 0 if we don't know
typedef SkImage_Base INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
SkImage_Gpu::SkImage_Gpu(const SkBitmap& bitmap, int sampleCountForNewSurfaces)
: INHERITED(bitmap.width(), bitmap.height(), NULL)
, fBitmap(bitmap)
, fSampleCountForNewSurfaces(sampleCountForNewSurfaces)
{
SkASSERT(fBitmap.getTexture());
}
SkShader* SkImage_Gpu::onNewShader(SkShader::TileMode tileX,
SkShader::TileMode tileY,
const SkMatrix* localMatrix) const
{
return SkShader::CreateBitmapShader(fBitmap, tileX, tileY, localMatrix);
}
void SkImage_Gpu::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const {
canvas->drawBitmap(fBitmap, x, y, paint);
}
void SkImage_Gpu::onDrawRect(SkCanvas* canvas, const SkRect* src, const SkRect& dst,
const SkPaint* paint) const {
canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
}
SkSurface* SkImage_Gpu::onNewSurface(const SkImageInfo& info, const SkSurfaceProps& props) const {
GrContext* ctx = this->getTexture()->getContext();
return SkSurface::NewRenderTarget(ctx, info, fSampleCountForNewSurfaces, &props);
}
GrTexture* SkImage_Gpu::onGetTexture() const {
return fBitmap.getTexture();
}
bool SkImage_Gpu::getROPixels(SkBitmap* dst) const {
return fBitmap.copyTo(dst, kN32_SkColorType);
}
bool SkImage_Gpu::isOpaque() const {
return fBitmap.isOpaque();
}
///////////////////////////////////////////////////////////////////////////////
SkImage* SkNewImageFromBitmapTexture(const SkBitmap& bitmap, int sampleCountForNewSurfaces) {
if (NULL == bitmap.getTexture()) {
return NULL;
}
return SkNEW_ARGS(SkImage_Gpu, (bitmap, sampleCountForNewSurfaces));
}
GrTexture* SkTextureImageGetTexture(SkImage* image) {
return ((SkImage_Gpu*)image)->getTexture();
}
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