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
15 class SkImage_Gpu : public SkImage_Base {
16 public:
17 SK_DECLARE_INST_COUNT(SkImage_Gpu)
18
19 explicit SkImage_Gpu(const SkBitmap&);
20 virtual ~SkImage_Gpu();
21
22 virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) const SK_OVERRIDE;
23 virtual void onDrawRectToRect(SkCanvas*, const SkRect* src, const SkRect& dst,
24 const SkPaint*) const SK_OVERRIDE;
25 virtual GrTexture* onGetTexture() const SK_OVERRIDE;
26 virtual bool getROPixels(SkBitmap*) const SK_OVERRIDE;
27
getTexture() const28 GrTexture* getTexture() const { return fBitmap.getTexture(); }
29
30 virtual SkShader* onNewShader(SkShader::TileMode,
31 SkShader::TileMode,
32 const SkMatrix* localMatrix) const SK_OVERRIDE;
33
34 virtual bool isOpaque() const SK_OVERRIDE;
35
36 private:
37 SkBitmap fBitmap;
38
39 typedef SkImage_Base INHERITED;
40 };
41
42 ///////////////////////////////////////////////////////////////////////////////
43
SkImage_Gpu(const SkBitmap & bitmap)44 SkImage_Gpu::SkImage_Gpu(const SkBitmap& bitmap)
45 : INHERITED(bitmap.width(), bitmap.height())
46 , fBitmap(bitmap) {
47 SkASSERT(fBitmap.getTexture());
48 }
49
~SkImage_Gpu()50 SkImage_Gpu::~SkImage_Gpu() {
51 }
52
onNewShader(SkShader::TileMode tileX,SkShader::TileMode tileY,const SkMatrix * localMatrix) const53 SkShader* SkImage_Gpu::onNewShader(SkShader::TileMode tileX,
54 SkShader::TileMode tileY,
55 const SkMatrix* localMatrix) const
56 {
57 return SkShader::CreateBitmapShader(fBitmap, tileX, tileY, localMatrix);
58 }
59
onDraw(SkCanvas * canvas,SkScalar x,SkScalar y,const SkPaint * paint) const60 void SkImage_Gpu::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const {
61 canvas->drawBitmap(fBitmap, x, y, paint);
62 }
63
onDrawRectToRect(SkCanvas * canvas,const SkRect * src,const SkRect & dst,const SkPaint * paint) const64 void SkImage_Gpu::onDrawRectToRect(SkCanvas* canvas, const SkRect* src, const SkRect& dst,
65 const SkPaint* paint) const {
66 canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
67 }
68
onGetTexture() const69 GrTexture* SkImage_Gpu::onGetTexture() const {
70 return fBitmap.getTexture();
71 }
72
getROPixels(SkBitmap * dst) const73 bool SkImage_Gpu::getROPixels(SkBitmap* dst) const {
74 return fBitmap.copyTo(dst, kN32_SkColorType);
75 }
76
isOpaque() const77 bool SkImage_Gpu::isOpaque() const {
78 return fBitmap.isOpaque();
79 }
80
81 ///////////////////////////////////////////////////////////////////////////////
82
NewTexture(const SkBitmap & bitmap)83 SkImage* SkImage::NewTexture(const SkBitmap& bitmap) {
84 if (NULL == bitmap.getTexture()) {
85 return NULL;
86 }
87
88 return SkNEW_ARGS(SkImage_Gpu, (bitmap));
89 }
90
SkTextureImageGetTexture(SkImage * image)91 GrTexture* SkTextureImageGetTexture(SkImage* image) {
92 return ((SkImage_Gpu*)image)->getTexture();
93 }
94