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Side by Side Diff: src/gpu/SkGrPixelRef.cpp

Issue 111323005: Remvoe duplicate impl for SkImageInfo flattening (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Created 7 years ago
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1 1
2 /* 2 /*
3 * Copyright 2010 Google Inc. 3 * Copyright 2010 Google Inc.
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 9
10 10
11 #include "SkGrPixelRef.h" 11 #include "SkGrPixelRef.h"
12 #include "GrContext.h" 12 #include "GrContext.h"
13 #include "GrTexture.h" 13 #include "GrTexture.h"
14 #include "SkGr.h" 14 #include "SkGr.h"
15 #include "SkRect.h" 15 #include "SkRect.h"
16 16
17 // since we call lockPixels recursively on fBitmap, we need a distinct mutex, 17 // since we call lockPixels recursively on fBitmap, we need a distinct mutex,
18 // to avoid deadlock with the default one provided by SkPixelRef. 18 // to avoid deadlock with the default one provided by SkPixelRef.
19 SK_DECLARE_STATIC_MUTEX(gROLockPixelsPixelRefMutex); 19 SK_DECLARE_STATIC_MUTEX(gROLockPixelsPixelRefMutex);
20 20
21 SkROLockPixelsPixelRef::SkROLockPixelsPixelRef() : INHERITED(&gROLockPixelsPixel RefMutex) { 21 SkROLockPixelsPixelRef::SkROLockPixelsPixelRef(const SkImageInfo& info)
22 : INHERITED(info, &gROLockPixelsPixelRefMutex) {
22 } 23 }
23 24
24 SkROLockPixelsPixelRef::~SkROLockPixelsPixelRef() { 25 SkROLockPixelsPixelRef::~SkROLockPixelsPixelRef() {
25 } 26 }
26 27
27 void* SkROLockPixelsPixelRef::onLockPixels(SkColorTable** ctable) { 28 bool SkROLockPixelsPixelRef::onNewLockPixels(LockRec* rec) {
28 if (ctable) {
29 *ctable = NULL;
30 }
31 fBitmap.reset(); 29 fBitmap.reset();
32 // SkDebugf("---------- calling readpixels in support of lockpixels\n"); 30 // SkDebugf("---------- calling readpixels in support of lockpixels\n");
33 if (!this->onReadPixels(&fBitmap, NULL)) { 31 if (!this->onReadPixels(&fBitmap, NULL)) {
34 SkDebugf("SkROLockPixelsPixelRef::onLockPixels failed!\n"); 32 SkDebugf("SkROLockPixelsPixelRef::onLockPixels failed!\n");
35 return NULL; 33 return false;
36 } 34 }
37 fBitmap.lockPixels(); 35 fBitmap.lockPixels();
38 return fBitmap.getPixels(); 36 if (NULL == fBitmap.getPixels()) {
37 return false;
38 }
39
40 rec->fPixels = fBitmap.getPixels();
41 rec->fColorTable = NULL;
42 rec->fRowBytes = fBitmap.rowBytes();
43 return true;
39 } 44 }
40 45
41 void SkROLockPixelsPixelRef::onUnlockPixels() { 46 void SkROLockPixelsPixelRef::onUnlockPixels() {
42 fBitmap.unlockPixels(); 47 fBitmap.unlockPixels();
43 } 48 }
44 49
45 bool SkROLockPixelsPixelRef::onLockPixelsAreWritable() const { 50 bool SkROLockPixelsPixelRef::onLockPixelsAreWritable() const {
46 return false; 51 return false;
47 } 52 }
48 53
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69 pointStorage.set(subset->x(), subset->y()); 74 pointStorage.set(subset->x(), subset->y());
70 topLeft = &pointStorage; 75 topLeft = &pointStorage;
71 } else { 76 } else {
72 desc.fWidth = texture->width(); 77 desc.fWidth = texture->width();
73 desc.fHeight = texture->height(); 78 desc.fHeight = texture->height();
74 topLeft = NULL; 79 topLeft = NULL;
75 } 80 }
76 desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit; 81 desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit;
77 desc.fConfig = SkBitmapConfig2GrPixelConfig(dstConfig); 82 desc.fConfig = SkBitmapConfig2GrPixelConfig(dstConfig);
78 83
84 SkImageInfo info;
85 if (!GrPixelConfig2ColorType(desc.fConfig, &info.fColorType)) {
86 return NULL;
87 }
88 info.fWidth = desc.fWidth;
89 info.fHeight = desc.fHeight;
90 info.fAlphaType = kPremul_SkAlphaType;
91
79 GrTexture* dst = context->createUncachedTexture(desc, NULL, 0); 92 GrTexture* dst = context->createUncachedTexture(desc, NULL, 0);
80 if (NULL == dst) { 93 if (NULL == dst) {
81 return NULL; 94 return NULL;
82 } 95 }
83 96
84 context->copyTexture(texture, dst->asRenderTarget(), topLeft); 97 context->copyTexture(texture, dst->asRenderTarget(), topLeft);
85 98
86 // TODO: figure out if this is responsible for Chrome canvas errors 99 // TODO: figure out if this is responsible for Chrome canvas errors
87 #if 0 100 #if 0
88 // The render texture we have created (to perform the copy) isn't fully 101 // The render texture we have created (to perform the copy) isn't fully
89 // functional (since it doesn't have a stencil buffer). Release it here 102 // functional (since it doesn't have a stencil buffer). Release it here
90 // so the caller doesn't try to render to it. 103 // so the caller doesn't try to render to it.
91 // TODO: we can undo this release when dynamic stencil buffer attach/ 104 // TODO: we can undo this release when dynamic stencil buffer attach/
92 // detach has been implemented 105 // detach has been implemented
93 dst->releaseRenderTarget(); 106 dst->releaseRenderTarget();
94 #endif 107 #endif
95 108
96 SkGrPixelRef* pixelRef = SkNEW_ARGS(SkGrPixelRef, (dst)); 109 SkGrPixelRef* pixelRef = SkNEW_ARGS(SkGrPixelRef, (info, dst));
97 SkSafeUnref(dst); 110 SkSafeUnref(dst);
98 return pixelRef; 111 return pixelRef;
99 } 112 }
100 113
101 /////////////////////////////////////////////////////////////////////////////// 114 ///////////////////////////////////////////////////////////////////////////////
102 115
103 SkGrPixelRef::SkGrPixelRef(GrSurface* surface, bool transferCacheLock) { 116 SkGrPixelRef::SkGrPixelRef(const SkImageInfo& info, GrSurface* surface,
117 bool transferCacheLock)
118 : INHERITED(info)
119 {
104 // TODO: figure out if this is responsible for Chrome canvas errors 120 // TODO: figure out if this is responsible for Chrome canvas errors
105 #if 0 121 #if 0
106 // The GrTexture has a ref to the GrRenderTarget but not vice versa. 122 // The GrTexture has a ref to the GrRenderTarget but not vice versa.
107 // If the GrTexture exists take a ref to that (rather than the render
108 // target)
109 fSurface = surface->asTexture();
110 #else
111 fSurface = NULL;
112 #endif
113 if (NULL == fSurface) {
114 fSurface = surface;
115 }
116 fUnlock = transferCacheLock;
117 SkSafeRef(surface);
118 }
119
120 SkGrPixelRef::SkGrPixelRef(const SkImageInfo&, GrSurface* surface, bool transfer CacheLock) {
121 // TODO: figure out if this is responsible for Chrome canvas errors
122 #if 0
123 // The GrTexture has a ref to the GrRenderTarget but not vice versa.
124 // If the GrTexture exists take a ref to that (rather than the render 123 // If the GrTexture exists take a ref to that (rather than the render
125 // target) 124 // target)
126 fSurface = surface->asTexture(); 125 fSurface = surface->asTexture();
127 #else 126 #else
128 fSurface = NULL; 127 fSurface = NULL;
129 #endif 128 #endif
130 if (NULL == fSurface) { 129 if (NULL == fSurface) {
131 fSurface = surface; 130 fSurface = surface;
132 } 131 }
133 fUnlock = transferCacheLock; 132 fUnlock = transferCacheLock;
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187 if (!dst->allocPixels()) { 186 if (!dst->allocPixels()) {
188 SkDebugf("SkGrPixelRef::onReadPixels failed to alloc bitmap for result!\ n"); 187 SkDebugf("SkGrPixelRef::onReadPixels failed to alloc bitmap for result!\ n");
189 return false; 188 return false;
190 } 189 }
191 SkAutoLockPixels al(*dst); 190 SkAutoLockPixels al(*dst);
192 void* buffer = dst->getPixels(); 191 void* buffer = dst->getPixels();
193 return fSurface->readPixels(left, top, width, height, 192 return fSurface->readPixels(left, top, width, height,
194 kSkia8888_GrPixelConfig, 193 kSkia8888_GrPixelConfig,
195 buffer, dst->rowBytes()); 194 buffer, dst->rowBytes());
196 } 195 }
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