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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkSurface_Base.h" | 8 #include "SkSurface_Base.h" |
9 #include "SkImagePriv.h" | 9 #include "SkImagePriv.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
11 #include "SkDevice.h" | 11 #include "SkDevice.h" |
12 #include "SkMallocPixelRef.h" | 12 #include "SkMallocPixelRef.h" |
13 | 13 |
14 static const size_t kIgnoreRowBytesValue = (size_t)~0; | 14 static const size_t kIgnoreRowBytesValue = (size_t)~0; |
15 | 15 |
16 class SkSurface_Raster : public SkSurface_Base { | 16 class SkSurface_Raster : public SkSurface_Base { |
17 public: | 17 public: |
18 static bool Valid(const SkImageInfo&, size_t rb = kIgnoreRowBytesValue); | 18 static bool Valid(const SkImageInfo&, size_t rb = kIgnoreRowBytesValue); |
19 | 19 |
20 SkSurface_Raster(const SkImageInfo&, void*, size_t rb); | 20 SkSurface_Raster(const SkImageInfo&, void*, size_t rb, |
| 21 void (*releaseProc)(void* pixels, void* context), void* con
text); |
21 SkSurface_Raster(SkPixelRef*); | 22 SkSurface_Raster(SkPixelRef*); |
22 | 23 |
23 virtual SkCanvas* onNewCanvas() SK_OVERRIDE; | 24 virtual SkCanvas* onNewCanvas() SK_OVERRIDE; |
24 virtual SkSurface* onNewSurface(const SkImageInfo&) SK_OVERRIDE; | 25 virtual SkSurface* onNewSurface(const SkImageInfo&) SK_OVERRIDE; |
25 virtual SkImage* onNewImageSnapshot() SK_OVERRIDE; | 26 virtual SkImage* onNewImageSnapshot() SK_OVERRIDE; |
26 virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, | 27 virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, |
27 const SkPaint*) SK_OVERRIDE; | 28 const SkPaint*) SK_OVERRIDE; |
28 virtual void onCopyOnWrite(ContentChangeMode) SK_OVERRIDE; | 29 virtual void onCopyOnWrite(ContentChangeMode) SK_OVERRIDE; |
29 | 30 |
30 private: | 31 private: |
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69 } | 70 } |
70 | 71 |
71 uint64_t size = sk_64_mul(info.fHeight, rowBytes); | 72 uint64_t size = sk_64_mul(info.fHeight, rowBytes); |
72 if (size > kMaxTotalSize) { | 73 if (size > kMaxTotalSize) { |
73 return false; | 74 return false; |
74 } | 75 } |
75 | 76 |
76 return true; | 77 return true; |
77 } | 78 } |
78 | 79 |
79 SkSurface_Raster::SkSurface_Raster(const SkImageInfo& info, void* pixels, size_t
rb) | 80 SkSurface_Raster::SkSurface_Raster(const SkImageInfo& info, void* pixels, size_t
rb, |
| 81 void (*releaseProc)(void* pixels, void* conte
xt), void* context) |
80 : INHERITED(info) | 82 : INHERITED(info) |
81 { | 83 { |
82 fBitmap.installPixels(info, pixels, rb); | 84 fBitmap.installPixels(info, pixels, rb, NULL, releaseProc, context); |
83 fWeOwnThePixels = false; // We are "Direct" | 85 fWeOwnThePixels = false; // We are "Direct" |
84 } | 86 } |
85 | 87 |
86 SkSurface_Raster::SkSurface_Raster(SkPixelRef* pr) | 88 SkSurface_Raster::SkSurface_Raster(SkPixelRef* pr) |
87 : INHERITED(pr->info().fWidth, pr->info().fHeight) | 89 : INHERITED(pr->info().fWidth, pr->info().fHeight) |
88 { | 90 { |
89 const SkImageInfo& info = pr->info(); | 91 const SkImageInfo& info = pr->info(); |
90 | 92 |
91 fBitmap.setInfo(info, info.minRowBytes()); | 93 fBitmap.setInfo(info, info.minRowBytes()); |
92 fBitmap.setPixelRef(pr); | 94 fBitmap.setPixelRef(pr); |
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129 // Now fBitmap is a deep copy of itself (and therefore different from | 131 // Now fBitmap is a deep copy of itself (and therefore different from |
130 // what is being used by the image. Next we update the canvas to use | 132 // what is being used by the image. Next we update the canvas to use |
131 // this as its backend, so we can't modify the image's pixels anymore. | 133 // this as its backend, so we can't modify the image's pixels anymore. |
132 SkASSERT(NULL != this->getCachedCanvas()); | 134 SkASSERT(NULL != this->getCachedCanvas()); |
133 this->getCachedCanvas()->getDevice()->replaceBitmapBackendForRasterSurfa
ce(fBitmap); | 135 this->getCachedCanvas()->getDevice()->replaceBitmapBackendForRasterSurfa
ce(fBitmap); |
134 } | 136 } |
135 } | 137 } |
136 | 138 |
137 /////////////////////////////////////////////////////////////////////////////// | 139 /////////////////////////////////////////////////////////////////////////////// |
138 | 140 |
139 SkSurface* SkSurface::NewRasterDirect(const SkImageInfo& info, void* pixels, siz
e_t rowBytes) { | 141 SkSurface* SkSurface::NewRasterDirectReleaseProc(const SkImageInfo& info, void*
pixels, size_t rb, |
140 if (!SkSurface_Raster::Valid(info, rowBytes)) { | 142 void (*releaseProc)(void* pixel
s, void* context), |
| 143 void* context) { |
| 144 if (NULL == releaseProc) { |
| 145 context = NULL; |
| 146 } |
| 147 if (!SkSurface_Raster::Valid(info, rb)) { |
141 return NULL; | 148 return NULL; |
142 } | 149 } |
143 if (NULL == pixels) { | 150 if (NULL == pixels) { |
144 return NULL; | 151 return NULL; |
145 } | 152 } |
| 153 |
| 154 return SkNEW_ARGS(SkSurface_Raster, (info, pixels, rb, releaseProc, context)
); |
| 155 } |
146 | 156 |
147 return SkNEW_ARGS(SkSurface_Raster, (info, pixels, rowBytes)); | 157 SkSurface* SkSurface::NewRasterDirect(const SkImageInfo& info, void* pixels, siz
e_t rowBytes) { |
| 158 return NewRasterDirectReleaseProc(info, pixels, rowBytes, NULL, NULL); |
148 } | 159 } |
149 | 160 |
150 SkSurface* SkSurface::NewRaster(const SkImageInfo& info) { | 161 SkSurface* SkSurface::NewRaster(const SkImageInfo& info) { |
151 if (!SkSurface_Raster::Valid(info)) { | 162 if (!SkSurface_Raster::Valid(info)) { |
152 return NULL; | 163 return NULL; |
153 } | 164 } |
154 | 165 |
155 SkAutoTUnref<SkPixelRef> pr(SkMallocPixelRef::NewAllocate(info, 0, NULL)); | 166 SkAutoTUnref<SkPixelRef> pr(SkMallocPixelRef::NewAllocate(info, 0, NULL)); |
156 if (NULL == pr.get()) { | 167 if (NULL == pr.get()) { |
157 return NULL; | 168 return NULL; |
158 } | 169 } |
159 return SkNEW_ARGS(SkSurface_Raster, (pr)); | 170 return SkNEW_ARGS(SkSurface_Raster, (pr)); |
160 } | 171 } |
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