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;
26 virtual bool getROPixels(SkBitmap*) const SK_OVERRIDE;
27
getTexture()28 GrTexture* getTexture() { return fBitmap.getTexture(); }
29
30 private:
31 SkBitmap fBitmap;
32
33 typedef SkImage_Base INHERITED;
34 };
35
36 ///////////////////////////////////////////////////////////////////////////////
37
SkImage_Gpu(const SkBitmap & bitmap)38 SkImage_Gpu::SkImage_Gpu(const SkBitmap& bitmap)
39 : INHERITED(bitmap.width(), bitmap.height())
40 , fBitmap(bitmap) {
41 SkASSERT(NULL != fBitmap.getTexture());
42 }
43
~SkImage_Gpu()44 SkImage_Gpu::~SkImage_Gpu() {
45 }
46
onDraw(SkCanvas * canvas,SkScalar x,SkScalar y,const SkPaint * paint)47 void SkImage_Gpu::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
48 const SkPaint* paint) {
49 canvas->drawBitmap(fBitmap, x, y, paint);
50 }
51
onDrawRectToRect(SkCanvas * canvas,const SkRect * src,const SkRect & dst,const SkPaint * paint)52 void SkImage_Gpu::onDrawRectToRect(SkCanvas* canvas, const SkRect* src, const SkRect& dst,
53 const SkPaint* paint) {
54 canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
55 }
56
onGetTexture()57 GrTexture* SkImage_Gpu::onGetTexture() {
58 return fBitmap.getTexture();
59 }
60
getROPixels(SkBitmap * dst) const61 bool SkImage_Gpu::getROPixels(SkBitmap* dst) const {
62 return fBitmap.copyTo(dst, kN32_SkColorType);
63 }
64
65 ///////////////////////////////////////////////////////////////////////////////
66
NewTexture(const SkBitmap & bitmap)67 SkImage* SkImage::NewTexture(const SkBitmap& bitmap) {
68 if (NULL == bitmap.getTexture()) {
69 return NULL;
70 }
71
72 return SkNEW_ARGS(SkImage_Gpu, (bitmap));
73 }
74
SkTextureImageGetTexture(SkImage * image)75 GrTexture* SkTextureImageGetTexture(SkImage* image) {
76 return ((SkImage_Gpu*)image)->getTexture();
77 }
78