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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 | 12 |
| 13 #include "GrContext.h" | 13 #include "GrContext.h" |
| 14 #include "GrTexture.h" | 14 #include "GrTexture.h" |
| 15 #include "GrTexturePriv.h" | 15 #include "GrTexturePriv.h" |
| 16 #include "SkBitmapCache.h" | 16 #include "SkBitmapCache.h" |
| 17 #include "SkGr.h" | 17 #include "SkGr.h" |
| 18 #include "SkRect.h" | 18 #include "SkRect.h" |
| 19 | 19 |
| 20 SkROLockPixelsPixelRef::SkROLockPixelsPixelRef(const SkImageInfo& info) | 20 SkROLockPixelsPixelRef::SkROLockPixelsPixelRef(const SkImageInfo& info) |
| 21 : INHERITED(info) {} | 21 : INHERITED(info) {} |
| 22 | 22 |
| 23 SkROLockPixelsPixelRef::~SkROLockPixelsPixelRef() {} | 23 SkROLockPixelsPixelRef::~SkROLockPixelsPixelRef() {} |
| 24 | 24 |
| 25 bool SkROLockPixelsPixelRef::onNewLockPixels(LockRec* rec) { | 25 bool SkROLockPixelsPixelRef::onNewLockPixels(LockRec* rec) { |
| 26 fBitmap.reset(); | 26 fBitmap.reset(); |
| 27 // SkDebugf("---------- calling readpixels in support of lockpixels\n"); | 27 // SkDebugf("---------- calling readpixels in support of lockpixels\n"); |
| 28 if (!this->onReadPixels(&fBitmap, NULL)) { | 28 if (!this->onReadPixels(&fBitmap, nullptr)) { |
| 29 SkDebugf("SkROLockPixelsPixelRef::onLockPixels failed!\n"); | 29 SkDebugf("SkROLockPixelsPixelRef::onLockPixels failed!\n"); |
| 30 return false; | 30 return false; |
| 31 } | 31 } |
| 32 fBitmap.lockPixels(); | 32 fBitmap.lockPixels(); |
| 33 if (NULL == fBitmap.getPixels()) { | 33 if (nullptr == fBitmap.getPixels()) { |
| 34 return false; | 34 return false; |
| 35 } | 35 } |
| 36 | 36 |
| 37 rec->fPixels = fBitmap.getPixels(); | 37 rec->fPixels = fBitmap.getPixels(); |
| 38 rec->fColorTable = NULL; | 38 rec->fColorTable = nullptr; |
| 39 rec->fRowBytes = fBitmap.rowBytes(); | 39 rec->fRowBytes = fBitmap.rowBytes(); |
| 40 return true; | 40 return true; |
| 41 } | 41 } |
| 42 | 42 |
| 43 void SkROLockPixelsPixelRef::onUnlockPixels() { | 43 void SkROLockPixelsPixelRef::onUnlockPixels() { |
| 44 fBitmap.unlockPixels(); | 44 fBitmap.unlockPixels(); |
| 45 } | 45 } |
| 46 | 46 |
| 47 bool SkROLockPixelsPixelRef::onLockPixelsAreWritable() const { | 47 bool SkROLockPixelsPixelRef::onLockPixelsAreWritable() const { |
| 48 return false; | 48 return false; |
| 49 } | 49 } |
| 50 | 50 |
| 51 /////////////////////////////////////////////////////////////////////////////// | 51 /////////////////////////////////////////////////////////////////////////////// |
| 52 | 52 |
| 53 static SkGrPixelRef* copy_to_new_texture_pixelref(GrTexture* texture, SkColorTyp
e dstCT, | 53 static SkGrPixelRef* copy_to_new_texture_pixelref(GrTexture* texture, SkColorTyp
e dstCT, |
| 54 SkColorProfileType dstPT, cons
t SkIRect* subset) { | 54 SkColorProfileType dstPT, cons
t SkIRect* subset) { |
| 55 if (NULL == texture || kUnknown_SkColorType == dstCT) { | 55 if (nullptr == texture || kUnknown_SkColorType == dstCT) { |
| 56 return NULL; | 56 return nullptr; |
| 57 } | 57 } |
| 58 GrContext* context = texture->getContext(); | 58 GrContext* context = texture->getContext(); |
| 59 if (NULL == context) { | 59 if (nullptr == context) { |
| 60 return NULL; | 60 return nullptr; |
| 61 } | 61 } |
| 62 GrSurfaceDesc desc; | 62 GrSurfaceDesc desc; |
| 63 | 63 |
| 64 SkIRect srcRect; | 64 SkIRect srcRect; |
| 65 | 65 |
| 66 if (!subset) { | 66 if (!subset) { |
| 67 desc.fWidth = texture->width(); | 67 desc.fWidth = texture->width(); |
| 68 desc.fHeight = texture->height(); | 68 desc.fHeight = texture->height(); |
| 69 srcRect = SkIRect::MakeWH(texture->width(), texture->height()); | 69 srcRect = SkIRect::MakeWH(texture->width(), texture->height()); |
| 70 } else { | 70 } else { |
| 71 SkASSERT(SkIRect::MakeWH(texture->width(), texture->height()).contains(*
subset)); | 71 SkASSERT(SkIRect::MakeWH(texture->width(), texture->height()).contains(*
subset)); |
| 72 // Create a new texture that is the size of subset. | 72 // Create a new texture that is the size of subset. |
| 73 desc.fWidth = subset->width(); | 73 desc.fWidth = subset->width(); |
| 74 desc.fHeight = subset->height(); | 74 desc.fHeight = subset->height(); |
| 75 srcRect = *subset; | 75 srcRect = *subset; |
| 76 } | 76 } |
| 77 desc.fFlags = kRenderTarget_GrSurfaceFlag; | 77 desc.fFlags = kRenderTarget_GrSurfaceFlag; |
| 78 desc.fConfig = SkImageInfo2GrPixelConfig(dstCT, kPremul_SkAlphaType, dstPT); | 78 desc.fConfig = SkImageInfo2GrPixelConfig(dstCT, kPremul_SkAlphaType, dstPT); |
| 79 | 79 |
| 80 GrTexture* dst = context->textureProvider()->createTexture(desc, false, NULL
, 0); | 80 GrTexture* dst = context->textureProvider()->createTexture(desc, false, null
ptr, 0); |
| 81 if (NULL == dst) { | 81 if (nullptr == dst) { |
| 82 return NULL; | 82 return nullptr; |
| 83 } | 83 } |
| 84 | 84 |
| 85 // Blink is relying on the above copy being sent to GL immediately in the ca
se when the source | 85 // Blink is relying on the above copy being sent to GL immediately in the ca
se when the source |
| 86 // is a WebGL canvas backing store. We could have a TODO to remove this flus
h flag, but we have | 86 // is a WebGL canvas backing store. We could have a TODO to remove this flus
h flag, but we have |
| 87 // a larger TODO to remove SkGrPixelRef entirely. | 87 // a larger TODO to remove SkGrPixelRef entirely. |
| 88 context->copySurface(dst->asRenderTarget(), texture, srcRect, SkIPoint::Make
(0,0), | 88 context->copySurface(dst->asRenderTarget(), texture, srcRect, SkIPoint::Make
(0,0), |
| 89 GrContext::kFlushWrites_PixelOp); | 89 GrContext::kFlushWrites_PixelOp); |
| 90 | 90 |
| 91 SkImageInfo info = SkImageInfo::Make(desc.fWidth, desc.fHeight, dstCT, kPrem
ul_SkAlphaType, | 91 SkImageInfo info = SkImageInfo::Make(desc.fWidth, desc.fHeight, dstCT, kPrem
ul_SkAlphaType, |
| 92 dstPT); | 92 dstPT); |
| 93 SkGrPixelRef* pixelRef = new SkGrPixelRef(info, dst); | 93 SkGrPixelRef* pixelRef = new SkGrPixelRef(info, dst); |
| 94 SkSafeUnref(dst); | 94 SkSafeUnref(dst); |
| 95 return pixelRef; | 95 return pixelRef; |
| 96 } | 96 } |
| 97 | 97 |
| 98 /////////////////////////////////////////////////////////////////////////////// | 98 /////////////////////////////////////////////////////////////////////////////// |
| 99 | 99 |
| 100 SkGrPixelRef::SkGrPixelRef(const SkImageInfo& info, GrSurface* surface) : INHERI
TED(info) { | 100 SkGrPixelRef::SkGrPixelRef(const SkImageInfo& info, GrSurface* surface) : INHERI
TED(info) { |
| 101 // For surfaces that are both textures and render targets, the texture owns
the | 101 // For surfaces that are both textures and render targets, the texture owns
the |
| 102 // render target but not vice versa. So we ref the texture to keep both aliv
e for | 102 // render target but not vice versa. So we ref the texture to keep both aliv
e for |
| 103 // the lifetime of this pixel ref. | 103 // the lifetime of this pixel ref. |
| 104 fSurface = SkSafeRef(surface->asTexture()); | 104 fSurface = SkSafeRef(surface->asTexture()); |
| 105 if (NULL == fSurface) { | 105 if (nullptr == fSurface) { |
| 106 fSurface = SkSafeRef(surface); | 106 fSurface = SkSafeRef(surface); |
| 107 } | 107 } |
| 108 | 108 |
| 109 if (fSurface) { | 109 if (fSurface) { |
| 110 SkASSERT(info.width() <= fSurface->width()); | 110 SkASSERT(info.width() <= fSurface->width()); |
| 111 SkASSERT(info.height() <= fSurface->height()); | 111 SkASSERT(info.height() <= fSurface->height()); |
| 112 } | 112 } |
| 113 } | 113 } |
| 114 | 114 |
| 115 SkGrPixelRef::~SkGrPixelRef() { | 115 SkGrPixelRef::~SkGrPixelRef() { |
| 116 SkSafeUnref(fSurface); | 116 SkSafeUnref(fSurface); |
| 117 } | 117 } |
| 118 | 118 |
| 119 GrTexture* SkGrPixelRef::getTexture() { | 119 GrTexture* SkGrPixelRef::getTexture() { |
| 120 if (fSurface) { | 120 if (fSurface) { |
| 121 return fSurface->asTexture(); | 121 return fSurface->asTexture(); |
| 122 } | 122 } |
| 123 return NULL; | 123 return nullptr; |
| 124 } | 124 } |
| 125 | 125 |
| 126 void SkGrPixelRef::onNotifyPixelsChanged() { | 126 void SkGrPixelRef::onNotifyPixelsChanged() { |
| 127 GrTexture* texture = this->getTexture(); | 127 GrTexture* texture = this->getTexture(); |
| 128 if (texture) { | 128 if (texture) { |
| 129 texture->texturePriv().dirtyMipMaps(true); | 129 texture->texturePriv().dirtyMipMaps(true); |
| 130 } | 130 } |
| 131 } | 131 } |
| 132 | 132 |
| 133 SkPixelRef* SkGrPixelRef::deepCopy(SkColorType dstCT, SkColorProfileType dstPT, | 133 SkPixelRef* SkGrPixelRef::deepCopy(SkColorType dstCT, SkColorProfileType dstPT, |
| 134 const SkIRect* subset) { | 134 const SkIRect* subset) { |
| 135 if (NULL == fSurface) { | 135 if (nullptr == fSurface) { |
| 136 return NULL; | 136 return nullptr; |
| 137 } | 137 } |
| 138 | 138 |
| 139 // Note that when copying a render-target-backed pixel ref, we | 139 // Note that when copying a render-target-backed pixel ref, we |
| 140 // return a texture-backed pixel ref instead. This is because | 140 // return a texture-backed pixel ref instead. This is because |
| 141 // render-target pixel refs are usually created in conjunction with | 141 // render-target pixel refs are usually created in conjunction with |
| 142 // a GrTexture owned elsewhere (e.g., SkGpuDevice), and cannot live | 142 // a GrTexture owned elsewhere (e.g., SkGpuDevice), and cannot live |
| 143 // independently of that texture. Texture-backed pixel refs, on the other | 143 // independently of that texture. Texture-backed pixel refs, on the other |
| 144 // hand, own their GrTextures, and are thus self-contained. | 144 // hand, own their GrTextures, and are thus self-contained. |
| 145 return copy_to_new_texture_pixelref(fSurface->asTexture(), dstCT, dstPT, sub
set); | 145 return copy_to_new_texture_pixelref(fSurface->asTexture(), dstCT, dstPT, sub
set); |
| 146 } | 146 } |
| 147 | 147 |
| 148 static bool tryAllocBitmapPixels(SkBitmap* bitmap) { | 148 static bool tryAllocBitmapPixels(SkBitmap* bitmap) { |
| 149 SkBitmap::Allocator* allocator = SkBitmapCache::GetAllocator(); | 149 SkBitmap::Allocator* allocator = SkBitmapCache::GetAllocator(); |
| 150 if (NULL != allocator) { | 150 if (nullptr != allocator) { |
| 151 return allocator->allocPixelRef(bitmap, 0); | 151 return allocator->allocPixelRef(bitmap, 0); |
| 152 } else { | 152 } else { |
| 153 // DiscardableMemory is not available, fallback to default allocator | 153 // DiscardableMemory is not available, fallback to default allocator |
| 154 return bitmap->tryAllocPixels(); | 154 return bitmap->tryAllocPixels(); |
| 155 } | 155 } |
| 156 } | 156 } |
| 157 | 157 |
| 158 bool SkGrPixelRef::onReadPixels(SkBitmap* dst, const SkIRect* subset) { | 158 bool SkGrPixelRef::onReadPixels(SkBitmap* dst, const SkIRect* subset) { |
| 159 if (NULL == fSurface || fSurface->wasDestroyed()) { | 159 if (nullptr == fSurface || fSurface->wasDestroyed()) { |
| 160 return false; | 160 return false; |
| 161 } | 161 } |
| 162 | 162 |
| 163 SkIRect bounds; | 163 SkIRect bounds; |
| 164 if (subset) { | 164 if (subset) { |
| 165 bounds = *subset; | 165 bounds = *subset; |
| 166 } else { | 166 } else { |
| 167 bounds = SkIRect::MakeWH(this->info().width(), this->info().height()); | 167 bounds = SkIRect::MakeWH(this->info().width(), this->info().height()); |
| 168 } | 168 } |
| 169 | 169 |
| (...skipping 24 matching lines...) Expand all Loading... |
| 194 cachedBitmap.setImmutable(); | 194 cachedBitmap.setImmutable(); |
| 195 //Add to the cache | 195 //Add to the cache |
| 196 SkBitmapCache::Add(this, bounds, cachedBitmap); | 196 SkBitmapCache::Add(this, bounds, cachedBitmap); |
| 197 | 197 |
| 198 dst->swap(cachedBitmap); | 198 dst->swap(cachedBitmap); |
| 199 } | 199 } |
| 200 | 200 |
| 201 return true; | 201 return true; |
| 202 | 202 |
| 203 } | 203 } |
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