1 /*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "SkImage_Base.h"
9 #include "SkImagePriv.h"
10 #include "SkBitmap.h"
11 #include "SkCanvas.h"
12 #include "GrContext.h"
13 #include "GrTexture.h"
14 #include "SkGrPixelRef.h"
15
16 class SkImage_Gpu : public SkImage_Base {
17 public:
18 SK_DECLARE_INST_COUNT(SkImage_Gpu)
19
20 explicit SkImage_Gpu(const SkBitmap&);
21 virtual ~SkImage_Gpu();
22
23 virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) SK_OVERRIDE;
24 virtual void onDrawRectToRect(SkCanvas*, const SkRect* src, const SkRect& dst, const SkPaint*) SK_OVERRIDE;
25 virtual GrTexture* onGetTexture() SK_OVERRIDE;
getROPixels(SkBitmap *) const26 virtual bool getROPixels(SkBitmap*) const SK_OVERRIDE {
27 // TODO
28 return false;
29 }
30
getTexture()31 GrTexture* getTexture() { return fBitmap.getTexture(); }
32
33 private:
34 SkBitmap fBitmap;
35
36 typedef SkImage_Base INHERITED;
37 };
38
39 ///////////////////////////////////////////////////////////////////////////////
40
SkImage_Gpu(const SkBitmap & bitmap)41 SkImage_Gpu::SkImage_Gpu(const SkBitmap& bitmap)
42 : INHERITED(bitmap.width(), bitmap.height())
43 , fBitmap(bitmap) {
44 SkASSERT(NULL != fBitmap.getTexture());
45 }
46
~SkImage_Gpu()47 SkImage_Gpu::~SkImage_Gpu() {
48 }
49
onDraw(SkCanvas * canvas,SkScalar x,SkScalar y,const SkPaint * paint)50 void SkImage_Gpu::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
51 const SkPaint* paint) {
52 canvas->drawBitmap(fBitmap, x, y, paint);
53 }
54
onDrawRectToRect(SkCanvas * canvas,const SkRect * src,const SkRect & dst,const SkPaint * paint)55 void SkImage_Gpu::onDrawRectToRect(SkCanvas* canvas, const SkRect* src, const SkRect& dst,
56 const SkPaint* paint) {
57 canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
58 }
59
onGetTexture()60 GrTexture* SkImage_Gpu::onGetTexture() {
61 return fBitmap.getTexture();
62 }
63
64 ///////////////////////////////////////////////////////////////////////////////
65
NewTexture(const SkBitmap & bitmap)66 SkImage* SkImage::NewTexture(const SkBitmap& bitmap) {
67 if (NULL == bitmap.getTexture()) {
68 return NULL;
69 }
70
71 return SkNEW_ARGS(SkImage_Gpu, (bitmap));
72 }
73
SkTextureImageGetTexture(SkImage * image)74 GrTexture* SkTextureImageGetTexture(SkImage* image) {
75 return ((SkImage_Gpu*)image)->getTexture();
76 }
77