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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 void (*releaseProc)(void* pixels, void* context), void* con
text); |
22 const SkSurfaceProps*); | 22 SkSurface_Raster(SkPixelRef*); |
23 SkSurface_Raster(SkPixelRef*, const SkSurfaceProps*); | |
24 | 23 |
25 virtual SkCanvas* onNewCanvas() SK_OVERRIDE; | 24 virtual SkCanvas* onNewCanvas() SK_OVERRIDE; |
26 virtual SkSurface* onNewSurface(const SkImageInfo&) SK_OVERRIDE; | 25 virtual SkSurface* onNewSurface(const SkImageInfo&) SK_OVERRIDE; |
27 virtual SkImage* onNewImageSnapshot() SK_OVERRIDE; | 26 virtual SkImage* onNewImageSnapshot() SK_OVERRIDE; |
28 virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, | 27 virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, |
29 const SkPaint*) SK_OVERRIDE; | 28 const SkPaint*) SK_OVERRIDE; |
30 virtual void onCopyOnWrite(ContentChangeMode) SK_OVERRIDE; | 29 virtual void onCopyOnWrite(ContentChangeMode) SK_OVERRIDE; |
31 | 30 |
32 private: | 31 private: |
33 SkBitmap fBitmap; | 32 SkBitmap fBitmap; |
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72 | 71 |
73 uint64_t size = sk_64_mul(info.height(), rowBytes); | 72 uint64_t size = sk_64_mul(info.height(), rowBytes); |
74 if (size > kMaxTotalSize) { | 73 if (size > kMaxTotalSize) { |
75 return false; | 74 return false; |
76 } | 75 } |
77 | 76 |
78 return true; | 77 return true; |
79 } | 78 } |
80 | 79 |
81 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, |
82 void (*releaseProc)(void* pixels, void* conte
xt), void* context, | 81 void (*releaseProc)(void* pixels, void* conte
xt), void* context) |
83 const SkSurfaceProps* props) | 82 : INHERITED(info) |
84 : INHERITED(info, props) | |
85 { | 83 { |
86 fBitmap.installPixels(info, pixels, rb, NULL, releaseProc, context); | 84 fBitmap.installPixels(info, pixels, rb, NULL, releaseProc, context); |
87 fWeOwnThePixels = false; // We are "Direct" | 85 fWeOwnThePixels = false; // We are "Direct" |
88 } | 86 } |
89 | 87 |
90 SkSurface_Raster::SkSurface_Raster(SkPixelRef* pr, const SkSurfaceProps* props) | 88 SkSurface_Raster::SkSurface_Raster(SkPixelRef* pr) |
91 : INHERITED(pr->info().width(), pr->info().height(), props) | 89 : INHERITED(pr->info().width(), pr->info().height()) |
92 { | 90 { |
93 const SkImageInfo& info = pr->info(); | 91 const SkImageInfo& info = pr->info(); |
94 | 92 |
95 fBitmap.setInfo(info, info.minRowBytes()); | 93 fBitmap.setInfo(info, info.minRowBytes()); |
96 fBitmap.setPixelRef(pr); | 94 fBitmap.setPixelRef(pr); |
97 fWeOwnThePixels = true; | 95 fWeOwnThePixels = true; |
98 | 96 |
99 if (!info.isOpaque()) { | 97 if (!info.isOpaque()) { |
100 fBitmap.eraseColor(SK_ColorTRANSPARENT); | 98 fBitmap.eraseColor(SK_ColorTRANSPARENT); |
101 } | 99 } |
102 } | 100 } |
103 | 101 |
104 SkCanvas* SkSurface_Raster::onNewCanvas() { | 102 SkCanvas* SkSurface_Raster::onNewCanvas() { |
105 return SkNEW_ARGS(SkCanvas, (fBitmap, this->props())); | 103 return SkNEW_ARGS(SkCanvas, (fBitmap)); |
106 } | 104 } |
107 | 105 |
108 SkSurface* SkSurface_Raster::onNewSurface(const SkImageInfo& info) { | 106 SkSurface* SkSurface_Raster::onNewSurface(const SkImageInfo& info) { |
109 return SkSurface::NewRaster(info); | 107 return SkSurface::NewRaster(info); |
110 } | 108 } |
111 | 109 |
112 void SkSurface_Raster::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, | 110 void SkSurface_Raster::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, |
113 const SkPaint* paint) { | 111 const SkPaint* paint) { |
114 canvas->drawBitmap(fBitmap, x, y, paint); | 112 canvas->drawBitmap(fBitmap, x, y, paint); |
115 } | 113 } |
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135 // 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. |
136 SkASSERT(this->getCachedCanvas()); | 134 SkASSERT(this->getCachedCanvas()); |
137 this->getCachedCanvas()->getDevice()->replaceBitmapBackendForRasterSurfa
ce(fBitmap); | 135 this->getCachedCanvas()->getDevice()->replaceBitmapBackendForRasterSurfa
ce(fBitmap); |
138 } | 136 } |
139 } | 137 } |
140 | 138 |
141 /////////////////////////////////////////////////////////////////////////////// | 139 /////////////////////////////////////////////////////////////////////////////// |
142 | 140 |
143 SkSurface* SkSurface::NewRasterDirectReleaseProc(const SkImageInfo& info, void*
pixels, size_t rb, | 141 SkSurface* SkSurface::NewRasterDirectReleaseProc(const SkImageInfo& info, void*
pixels, size_t rb, |
144 void (*releaseProc)(void* pixel
s, void* context), | 142 void (*releaseProc)(void* pixel
s, void* context), |
145 void* context, const SkSurfaceP
rops* props) { | 143 void* context) { |
146 if (NULL == releaseProc) { | 144 if (NULL == releaseProc) { |
147 context = NULL; | 145 context = NULL; |
148 } | 146 } |
149 if (!SkSurface_Raster::Valid(info, rb)) { | 147 if (!SkSurface_Raster::Valid(info, rb)) { |
150 return NULL; | 148 return NULL; |
151 } | 149 } |
152 if (NULL == pixels) { | 150 if (NULL == pixels) { |
153 return NULL; | 151 return NULL; |
154 } | 152 } |
155 | 153 |
156 return SkNEW_ARGS(SkSurface_Raster, (info, pixels, rb, releaseProc, context,
props)); | 154 return SkNEW_ARGS(SkSurface_Raster, (info, pixels, rb, releaseProc, context)
); |
157 } | 155 } |
158 | 156 |
159 SkSurface* SkSurface::NewRasterDirect(const SkImageInfo& info, void* pixels, siz
e_t rowBytes, | 157 SkSurface* SkSurface::NewRasterDirect(const SkImageInfo& info, void* pixels, siz
e_t rowBytes) { |
160 const SkSurfaceProps* props) { | 158 return NewRasterDirectReleaseProc(info, pixels, rowBytes, NULL, NULL); |
161 return NewRasterDirectReleaseProc(info, pixels, rowBytes, NULL, NULL, props)
; | |
162 } | 159 } |
163 | 160 |
164 SkSurface* SkSurface::NewRaster(const SkImageInfo& info, const SkSurfaceProps* p
rops) { | 161 SkSurface* SkSurface::NewRaster(const SkImageInfo& info) { |
165 if (!SkSurface_Raster::Valid(info)) { | 162 if (!SkSurface_Raster::Valid(info)) { |
166 return NULL; | 163 return NULL; |
167 } | 164 } |
168 | 165 |
169 SkAutoTUnref<SkPixelRef> pr(SkMallocPixelRef::NewAllocate(info, 0, NULL)); | 166 SkAutoTUnref<SkPixelRef> pr(SkMallocPixelRef::NewAllocate(info, 0, NULL)); |
170 if (NULL == pr.get()) { | 167 if (NULL == pr.get()) { |
171 return NULL; | 168 return NULL; |
172 } | 169 } |
173 return SkNEW_ARGS(SkSurface_Raster, (pr, props)); | 170 return SkNEW_ARGS(SkSurface_Raster, (pr)); |
174 } | 171 } |
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