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Side by Side Diff: src/image/SkSurface_Raster.cpp

Issue 54363008: move SkImage::ColorType into SkColorType (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Created 7 years, 1 month ago
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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 SkImage::Info&, size_t rb = kIgnoreRowBytesValue); 18 static bool Valid(const SkImageInfo&, size_t rb = kIgnoreRowBytesValue);
19 19
20 SkSurface_Raster(const SkImage::Info&, void*, size_t rb); 20 SkSurface_Raster(const SkImageInfo&, void*, size_t rb);
21 SkSurface_Raster(const SkImage::Info&, SkPixelRef*, size_t rb); 21 SkSurface_Raster(const SkImageInfo&, SkPixelRef*, size_t rb);
22 22
23 virtual SkCanvas* onNewCanvas() SK_OVERRIDE; 23 virtual SkCanvas* onNewCanvas() SK_OVERRIDE;
24 virtual SkSurface* onNewSurface(const SkImage::Info&) SK_OVERRIDE; 24 virtual SkSurface* onNewSurface(const SkImageInfo&) SK_OVERRIDE;
25 virtual SkImage* onNewImageSnapshot() SK_OVERRIDE; 25 virtual SkImage* onNewImageSnapshot() SK_OVERRIDE;
26 virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, 26 virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y,
27 const SkPaint*) SK_OVERRIDE; 27 const SkPaint*) SK_OVERRIDE;
28 virtual void onCopyOnWrite(ContentChangeMode) SK_OVERRIDE; 28 virtual void onCopyOnWrite(ContentChangeMode) SK_OVERRIDE;
29 29
30 private: 30 private:
31 SkBitmap fBitmap; 31 SkBitmap fBitmap;
32 bool fWeOwnThePixels; 32 bool fWeOwnThePixels;
33 33
34 typedef SkSurface_Base INHERITED; 34 typedef SkSurface_Base INHERITED;
35 }; 35 };
36 36
37 /////////////////////////////////////////////////////////////////////////////// 37 ///////////////////////////////////////////////////////////////////////////////
38 38
39 bool SkSurface_Raster::Valid(const SkImage::Info& info, size_t rowBytes) { 39 bool SkSurface_Raster::Valid(const SkImageInfo& info, size_t rowBytes) {
40 static const size_t kMaxTotalSize = SK_MaxS32; 40 static const size_t kMaxTotalSize = SK_MaxS32;
41 41
42 SkBitmap::Config config = SkImageInfoToBitmapConfig(info); 42 SkBitmap::Config config = SkImageInfoToBitmapConfig(info);
43 43
44 int shift = 0; 44 int shift = 0;
45 switch (config) { 45 switch (config) {
46 case SkBitmap::kA8_Config: 46 case SkBitmap::kA8_Config:
47 shift = 0; 47 shift = 0;
48 break; 48 break;
49 case SkBitmap::kRGB_565_Config: 49 case SkBitmap::kRGB_565_Config:
(...skipping 23 matching lines...) Expand all
73 } 73 }
74 74
75 uint64_t size = (uint64_t)info.fHeight * rowBytes; 75 uint64_t size = (uint64_t)info.fHeight * rowBytes;
76 if (size > kMaxTotalSize) { 76 if (size > kMaxTotalSize) {
77 return false; 77 return false;
78 } 78 }
79 79
80 return true; 80 return true;
81 } 81 }
82 82
83 SkSurface_Raster::SkSurface_Raster(const SkImage::Info& info, void* pixels, size _t rb) 83 SkSurface_Raster::SkSurface_Raster(const SkImageInfo& info, void* pixels, size_t rb)
84 : INHERITED(info.fWidth, info.fHeight) { 84 : INHERITED(info.fWidth, info.fHeight) {
85 SkBitmap::Config config = SkImageInfoToBitmapConfig(info); 85 SkBitmap::Config config = SkImageInfoToBitmapConfig(info);
86 fBitmap.setConfig(config, info.fWidth, info.fHeight, rb, info.fAlphaType); 86 fBitmap.setConfig(config, info.fWidth, info.fHeight, rb, info.fAlphaType);
87 fBitmap.setPixels(pixels); 87 fBitmap.setPixels(pixels);
88 fWeOwnThePixels = false; // We are "Direct" 88 fWeOwnThePixels = false; // We are "Direct"
89 } 89 }
90 90
91 SkSurface_Raster::SkSurface_Raster(const SkImage::Info& info, SkPixelRef* pr, si ze_t rb) 91 SkSurface_Raster::SkSurface_Raster(const SkImageInfo& info, SkPixelRef* pr, size _t rb)
92 : INHERITED(info.fWidth, info.fHeight) { 92 : INHERITED(info.fWidth, info.fHeight) {
93 SkBitmap::Config config = SkImageInfoToBitmapConfig(info); 93 SkBitmap::Config config = SkImageInfoToBitmapConfig(info);
94 fBitmap.setConfig(config, info.fWidth, info.fHeight, rb, info.fAlphaType); 94 fBitmap.setConfig(config, info.fWidth, info.fHeight, rb, info.fAlphaType);
95 fBitmap.setPixelRef(pr); 95 fBitmap.setPixelRef(pr);
96 fWeOwnThePixels = true; 96 fWeOwnThePixels = true;
97 97
98 if (!SkAlphaTypeIsOpaque(info.fAlphaType)) { 98 if (!SkAlphaTypeIsOpaque(info.fAlphaType)) {
99 fBitmap.eraseColor(SK_ColorTRANSPARENT); 99 fBitmap.eraseColor(SK_ColorTRANSPARENT);
100 } 100 }
101 } 101 }
102 102
103 SkCanvas* SkSurface_Raster::onNewCanvas() { 103 SkCanvas* SkSurface_Raster::onNewCanvas() {
104 return SkNEW_ARGS(SkCanvas, (fBitmap)); 104 return SkNEW_ARGS(SkCanvas, (fBitmap));
105 } 105 }
106 106
107 SkSurface* SkSurface_Raster::onNewSurface(const SkImage::Info& info) { 107 SkSurface* SkSurface_Raster::onNewSurface(const SkImageInfo& info) {
108 return SkSurface::NewRaster(info); 108 return SkSurface::NewRaster(info);
109 } 109 }
110 110
111 void SkSurface_Raster::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, 111 void SkSurface_Raster::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
112 const SkPaint* paint) { 112 const SkPaint* paint) {
113 canvas->drawBitmap(fBitmap, x, y, paint); 113 canvas->drawBitmap(fBitmap, x, y, paint);
114 } 114 }
115 115
116 SkImage* SkSurface_Raster::onNewImageSnapshot() { 116 SkImage* SkSurface_Raster::onNewImageSnapshot() {
117 return SkNewImageFromBitmap(fBitmap, fWeOwnThePixels); 117 return SkNewImageFromBitmap(fBitmap, fWeOwnThePixels);
(...skipping 14 matching lines...) Expand all
132 // Now fBitmap is a deep copy of itself (and therefore different from 132 // Now fBitmap is a deep copy of itself (and therefore different from
133 // what is being used by the image. Next we update the canvas to use 133 // what is being used by the image. Next we update the canvas to use
134 // this as its backend, so we can't modify the image's pixels anymore. 134 // this as its backend, so we can't modify the image's pixels anymore.
135 SkASSERT(NULL != this->getCachedCanvas()); 135 SkASSERT(NULL != this->getCachedCanvas());
136 this->getCachedCanvas()->getDevice()->replaceBitmapBackendForRasterSurfa ce(fBitmap); 136 this->getCachedCanvas()->getDevice()->replaceBitmapBackendForRasterSurfa ce(fBitmap);
137 } 137 }
138 } 138 }
139 139
140 /////////////////////////////////////////////////////////////////////////////// 140 ///////////////////////////////////////////////////////////////////////////////
141 141
142 SkSurface* SkSurface::NewRasterDirect(const SkImage::Info& info, void* pixels, s ize_t rowBytes) { 142 SkSurface* SkSurface::NewRasterDirect(const SkImageInfo& info, void* pixels, siz e_t rowBytes) {
143 if (!SkSurface_Raster::Valid(info, rowBytes)) { 143 if (!SkSurface_Raster::Valid(info, rowBytes)) {
144 return NULL; 144 return NULL;
145 } 145 }
146 if (NULL == pixels) { 146 if (NULL == pixels) {
147 return NULL; 147 return NULL;
148 } 148 }
149 149
150 return SkNEW_ARGS(SkSurface_Raster, (info, pixels, rowBytes)); 150 return SkNEW_ARGS(SkSurface_Raster, (info, pixels, rowBytes));
151 } 151 }
152 152
153 SkSurface* SkSurface::NewRaster(const SkImage::Info& info) { 153 SkSurface* SkSurface::NewRaster(const SkImageInfo& info) {
154 if (!SkSurface_Raster::Valid(info)) { 154 if (!SkSurface_Raster::Valid(info)) {
155 return NULL; 155 return NULL;
156 } 156 }
157 157
158 static const size_t kMaxTotalSize = SK_MaxS32; 158 static const size_t kMaxTotalSize = SK_MaxS32;
159 size_t rowBytes = SkImageMinRowBytes(info); 159 size_t rowBytes = SkImageMinRowBytes(info);
160 uint64_t size64 = (uint64_t)info.fHeight * rowBytes; 160 uint64_t size64 = (uint64_t)info.fHeight * rowBytes;
161 if (size64 > kMaxTotalSize) { 161 if (size64 > kMaxTotalSize) {
162 return NULL; 162 return NULL;
163 } 163 }
164 164
165 size_t size = (size_t)size64; 165 size_t size = (size_t)size64;
166 void* pixels = sk_malloc_throw(size); 166 void* pixels = sk_malloc_throw(size);
167 if (NULL == pixels) { 167 if (NULL == pixels) {
168 return NULL; 168 return NULL;
169 } 169 }
170 170
171 SkAutoTUnref<SkPixelRef> pr(SkNEW_ARGS(SkMallocPixelRef, (pixels, size, NULL , true))); 171 SkAutoTUnref<SkPixelRef> pr(SkNEW_ARGS(SkMallocPixelRef, (pixels, size, NULL , true)));
172 return SkNEW_ARGS(SkSurface_Raster, (info, pr, rowBytes)); 172 return SkNEW_ARGS(SkSurface_Raster, (info, pr, rowBytes));
173 } 173 }
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