michael@0: /*
michael@0:  * Copyright 2012 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #include "SkImage_Base.h"
michael@0: #include "SkImagePriv.h"
michael@0: #include "SkBitmap.h"
michael@0: #include "SkCanvas.h"
michael@0: #include "GrContext.h"
michael@0: #include "GrTexture.h"
michael@0: #include "SkGrPixelRef.h"
michael@0: 
michael@0: class SkImage_Gpu : public SkImage_Base {
michael@0: public:
michael@0:     SK_DECLARE_INST_COUNT(SkImage_Gpu)
michael@0: 
michael@0:     explicit SkImage_Gpu(const SkBitmap&);
michael@0:     virtual ~SkImage_Gpu();
michael@0: 
michael@0:     virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) SK_OVERRIDE;
michael@0:     virtual void onDrawRectToRect(SkCanvas*, const SkRect* src, const SkRect& dst, const SkPaint*) SK_OVERRIDE;
michael@0:     virtual GrTexture* onGetTexture() SK_OVERRIDE;
michael@0:     virtual bool getROPixels(SkBitmap*) const SK_OVERRIDE;
michael@0: 
michael@0:     GrTexture* getTexture() { return fBitmap.getTexture(); }
michael@0: 
michael@0: private:
michael@0:     SkBitmap    fBitmap;
michael@0: 
michael@0:     typedef SkImage_Base INHERITED;
michael@0: };
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: SkImage_Gpu::SkImage_Gpu(const SkBitmap& bitmap)
michael@0:     : INHERITED(bitmap.width(), bitmap.height())
michael@0:     , fBitmap(bitmap) {
michael@0:     SkASSERT(NULL != fBitmap.getTexture());
michael@0: }
michael@0: 
michael@0: SkImage_Gpu::~SkImage_Gpu() {
michael@0: }
michael@0: 
michael@0: void SkImage_Gpu::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
michael@0:                          const SkPaint* paint) {
michael@0:     canvas->drawBitmap(fBitmap, x, y, paint);
michael@0: }
michael@0: 
michael@0: void SkImage_Gpu::onDrawRectToRect(SkCanvas* canvas, const SkRect* src, const SkRect& dst,
michael@0:                          const SkPaint* paint) {
michael@0:     canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
michael@0: }
michael@0: 
michael@0: GrTexture* SkImage_Gpu::onGetTexture() {
michael@0:     return fBitmap.getTexture();
michael@0: }
michael@0: 
michael@0: bool SkImage_Gpu::getROPixels(SkBitmap* dst) const {
michael@0:     return fBitmap.copyTo(dst, kPMColor_SkColorType);
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: SkImage* SkImage::NewTexture(const SkBitmap& bitmap) {
michael@0:     if (NULL == bitmap.getTexture()) {
michael@0:         return NULL;
michael@0:     }
michael@0: 
michael@0:     return SkNEW_ARGS(SkImage_Gpu, (bitmap));
michael@0: }
michael@0: 
michael@0: GrTexture* SkTextureImageGetTexture(SkImage* image) {
michael@0:     return ((SkImage_Gpu*)image)->getTexture();
michael@0: }