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Side by Side Diff: src/image/SkImage_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 "SkImage_Base.h" 8 #include "SkImage_Base.h"
9 #include "SkImagePriv.h" 9 #include "SkImagePriv.h"
10 #include "SkBitmap.h" 10 #include "SkBitmap.h"
11 #include "SkCanvas.h" 11 #include "SkCanvas.h"
12 #include "SkData.h" 12 #include "SkData.h"
13 #include "SkDataPixelRef.h" 13 #include "SkDataPixelRef.h"
14 14
15 class SkImage_Raster : public SkImage_Base { 15 class SkImage_Raster : public SkImage_Base {
16 public: 16 public:
17 static bool ValidArgs(const Info& info, size_t rowBytes) { 17 static bool ValidArgs(const Info& info, size_t rowBytes) {
18 const int maxDimension = SK_MaxS32 >> 2; 18 const int maxDimension = SK_MaxS32 >> 2;
19 const size_t kMaxPixelByteSize = SK_MaxS32; 19 const size_t kMaxPixelByteSize = SK_MaxS32;
20 20
21 if (info.fWidth < 0 || info.fHeight < 0) { 21 if (info.fWidth < 0 || info.fHeight < 0) {
22 return false; 22 return false;
23 } 23 }
24 if (info.fWidth > maxDimension || info.fHeight > maxDimension) { 24 if (info.fWidth > maxDimension || info.fHeight > maxDimension) {
25 return false; 25 return false;
26 } 26 }
27 if ((unsigned)info.fColorType > (unsigned)kLastEnum_ColorType) { 27 if ((unsigned)info.fColorType > (unsigned)kLastEnum_SkColorType) {
28 return false; 28 return false;
29 } 29 }
30 if ((unsigned)info.fAlphaType > (unsigned)kLastEnum_SkAlphaType) { 30 if ((unsigned)info.fAlphaType > (unsigned)kLastEnum_SkAlphaType) {
31 return false; 31 return false;
32 } 32 }
33 33
34 if (SkImageInfoToBitmapConfig(info) == SkBitmap::kNo_Config) { 34 if (SkImageInfoToBitmapConfig(info) == SkBitmap::kNo_Config) {
35 return false; 35 return false;
36 } 36 }
37 37
38 // TODO: check colorspace 38 // TODO: check colorspace
39 39
40 if (rowBytes < SkImageMinRowBytes(info)) { 40 if (rowBytes < SkImageMinRowBytes(info)) {
41 return false; 41 return false;
42 } 42 }
43 43
44 int64_t size = (int64_t)info.fHeight * rowBytes; 44 int64_t size = (int64_t)info.fHeight * rowBytes;
45 if (size > (int64_t)kMaxPixelByteSize) { 45 if (size > (int64_t)kMaxPixelByteSize) {
46 return false; 46 return false;
47 } 47 }
48 return true; 48 return true;
49 } 49 }
50 50
51 static SkImage* NewEmpty(); 51 static SkImage* NewEmpty();
52 52
53 SkImage_Raster(const SkImage::Info&, SkData*, size_t rb); 53 SkImage_Raster(const SkImageInfo&, SkData*, size_t rb);
54 virtual ~SkImage_Raster(); 54 virtual ~SkImage_Raster();
55 55
56 virtual void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) SK_OVERRI DE; 56 virtual void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) SK_OVERRI DE;
57 virtual void onDrawRectToRect(SkCanvas*, const SkRect*, const SkRect&, const SkPaint*) SK_OVERRIDE; 57 virtual void onDrawRectToRect(SkCanvas*, const SkRect*, const SkRect&, const SkPaint*) SK_OVERRIDE;
58 virtual bool getROPixels(SkBitmap*) const SK_OVERRIDE; 58 virtual bool getROPixels(SkBitmap*) const SK_OVERRIDE;
59 59
60 // exposed for SkSurface_Raster via SkNewImageFromPixelRef 60 // exposed for SkSurface_Raster via SkNewImageFromPixelRef
61 SkImage_Raster(const SkImage::Info&, SkPixelRef*, size_t rowBytes); 61 SkImage_Raster(const SkImageInfo&, SkPixelRef*, size_t rowBytes);
62 62
63 SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); } 63 SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); }
64 64
65 private: 65 private:
66 SkImage_Raster() : INHERITED(0, 0) {} 66 SkImage_Raster() : INHERITED(0, 0) {}
67 67
68 SkBitmap fBitmap; 68 SkBitmap fBitmap;
69 69
70 typedef SkImage_Base INHERITED; 70 typedef SkImage_Base INHERITED;
71 }; 71 };
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after
109 canvas->drawBitmapRectToRect(fBitmap, src, dst, paint); 109 canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
110 } 110 }
111 111
112 bool SkImage_Raster::getROPixels(SkBitmap* dst) const { 112 bool SkImage_Raster::getROPixels(SkBitmap* dst) const {
113 *dst = fBitmap; 113 *dst = fBitmap;
114 return true; 114 return true;
115 } 115 }
116 116
117 /////////////////////////////////////////////////////////////////////////////// 117 ///////////////////////////////////////////////////////////////////////////////
118 118
119 SkImage* SkImage::NewRasterCopy(const SkImage::Info& info, const void* pixels, s ize_t rowBytes) { 119 SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, siz e_t rowBytes) {
120 if (!SkImage_Raster::ValidArgs(info, rowBytes)) { 120 if (!SkImage_Raster::ValidArgs(info, rowBytes)) {
121 return NULL; 121 return NULL;
122 } 122 }
123 if (0 == info.fWidth && 0 == info.fHeight) { 123 if (0 == info.fWidth && 0 == info.fHeight) {
124 return SkImage_Raster::NewEmpty(); 124 return SkImage_Raster::NewEmpty();
125 } 125 }
126 // check this after empty-check 126 // check this after empty-check
127 if (NULL == pixels) { 127 if (NULL == pixels) {
128 return NULL; 128 return NULL;
129 } 129 }
130 130
131 // Here we actually make a copy of the caller's pixel data 131 // Here we actually make a copy of the caller's pixel data
132 SkAutoDataUnref data(SkData::NewWithCopy(pixels, info.fHeight * rowBytes)); 132 SkAutoDataUnref data(SkData::NewWithCopy(pixels, info.fHeight * rowBytes));
133 return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes)); 133 return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes));
134 } 134 }
135 135
136 136
137 SkImage* SkImage::NewRasterData(const SkImage::Info& info, SkData* pixelData, si ze_t rowBytes) { 137 SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* pixelData, size _t rowBytes) {
138 if (!SkImage_Raster::ValidArgs(info, rowBytes)) { 138 if (!SkImage_Raster::ValidArgs(info, rowBytes)) {
139 return NULL; 139 return NULL;
140 } 140 }
141 if (0 == info.fWidth && 0 == info.fHeight) { 141 if (0 == info.fWidth && 0 == info.fHeight) {
142 return SkImage_Raster::NewEmpty(); 142 return SkImage_Raster::NewEmpty();
143 } 143 }
144 // check this after empty-check 144 // check this after empty-check
145 if (NULL == pixelData) { 145 if (NULL == pixelData) {
146 return NULL; 146 return NULL;
147 } 147 }
148 148
149 // did they give us enough data? 149 // did they give us enough data?
150 size_t size = info.fHeight * rowBytes; 150 size_t size = info.fHeight * rowBytes;
151 if (pixelData->size() < size) { 151 if (pixelData->size() < size) {
152 return NULL; 152 return NULL;
153 } 153 }
154 154
155 SkAutoDataUnref data(pixelData); 155 SkAutoDataUnref data(pixelData);
156 return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes)); 156 return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes));
157 } 157 }
158 158
159 SkImage* SkNewImageFromPixelRef(const SkImage::Info& info, SkPixelRef* pr, 159 SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr,
160 size_t rowBytes) { 160 size_t rowBytes) {
161 return SkNEW_ARGS(SkImage_Raster, (info, pr, rowBytes)); 161 return SkNEW_ARGS(SkImage_Raster, (info, pr, rowBytes));
162 } 162 }
163 163
164 SkPixelRef* SkBitmapImageGetPixelRef(SkImage* image) { 164 SkPixelRef* SkBitmapImageGetPixelRef(SkImage* image) {
165 return ((SkImage_Raster*)image)->getPixelRef(); 165 return ((SkImage_Raster*)image)->getPixelRef();
166 } 166 }
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