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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 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 | 8 |
9 | 9 |
10 #include "SkGrPixelRef.h" | 10 #include "SkGrPixelRef.h" |
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43 fBitmap.unlockPixels(); | 43 fBitmap.unlockPixels(); |
44 } | 44 } |
45 | 45 |
46 bool SkROLockPixelsPixelRef::onLockPixelsAreWritable() const { | 46 bool SkROLockPixelsPixelRef::onLockPixelsAreWritable() const { |
47 return false; | 47 return false; |
48 } | 48 } |
49 | 49 |
50 /////////////////////////////////////////////////////////////////////////////// | 50 /////////////////////////////////////////////////////////////////////////////// |
51 | 51 |
52 static SkGrPixelRef* copy_to_new_texture_pixelref(GrTexture* texture, SkColorTyp
e dstCT, | 52 static SkGrPixelRef* copy_to_new_texture_pixelref(GrTexture* texture, SkColorTyp
e dstCT, |
53 SkColorSpace* dstCS, const SkI
Rect* subset) { | 53 SkColorProfileType dstPT, cons
t SkIRect* subset) { |
54 if (nullptr == texture || kUnknown_SkColorType == dstCT) { | 54 if (nullptr == texture || kUnknown_SkColorType == dstCT) { |
55 return nullptr; | 55 return nullptr; |
56 } | 56 } |
57 GrContext* context = texture->getContext(); | 57 GrContext* context = texture->getContext(); |
58 if (nullptr == context) { | 58 if (nullptr == context) { |
59 return nullptr; | 59 return nullptr; |
60 } | 60 } |
61 GrSurfaceDesc desc; | 61 GrSurfaceDesc desc; |
62 | 62 |
63 SkIRect srcRect; | 63 SkIRect srcRect; |
64 | 64 |
65 if (!subset) { | 65 if (!subset) { |
66 desc.fWidth = texture->width(); | 66 desc.fWidth = texture->width(); |
67 desc.fHeight = texture->height(); | 67 desc.fHeight = texture->height(); |
68 srcRect = SkIRect::MakeWH(texture->width(), texture->height()); | 68 srcRect = SkIRect::MakeWH(texture->width(), texture->height()); |
69 } else { | 69 } else { |
70 SkASSERT(SkIRect::MakeWH(texture->width(), texture->height()).contains(*
subset)); | 70 SkASSERT(SkIRect::MakeWH(texture->width(), texture->height()).contains(*
subset)); |
71 // Create a new texture that is the size of subset. | 71 // Create a new texture that is the size of subset. |
72 desc.fWidth = subset->width(); | 72 desc.fWidth = subset->width(); |
73 desc.fHeight = subset->height(); | 73 desc.fHeight = subset->height(); |
74 srcRect = *subset; | 74 srcRect = *subset; |
75 } | 75 } |
76 desc.fFlags = kRenderTarget_GrSurfaceFlag; | 76 desc.fFlags = kRenderTarget_GrSurfaceFlag; |
77 desc.fConfig = SkImageInfo2GrPixelConfig(dstCT, kPremul_SkAlphaType, dstCS,
*context->caps()); | 77 desc.fConfig = SkImageInfo2GrPixelConfig(dstCT, kPremul_SkAlphaType, dstPT,
*context->caps()); |
78 desc.fIsMipMapped = false; | 78 desc.fIsMipMapped = false; |
79 | 79 |
80 GrTexture* dst = context->textureProvider()->createTexture(desc, SkBudgeted:
:kNo, nullptr, 0); | 80 GrTexture* dst = context->textureProvider()->createTexture(desc, SkBudgeted:
:kNo, nullptr, 0); |
81 if (nullptr == dst) { | 81 if (nullptr == dst) { |
82 return nullptr; | 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, but we have | 86 // is a WebGL canvas backing store. We could have a TODO to remove this flus
h, but we have |
87 // a larger TODO to remove SkGrPixelRef entirely. | 87 // a larger TODO to remove SkGrPixelRef entirely. |
88 context->copySurface(dst, texture, srcRect, SkIPoint::Make(0,0)); | 88 context->copySurface(dst, texture, srcRect, SkIPoint::Make(0,0)); |
89 context->flushSurfaceWrites(dst); | 89 context->flushSurfaceWrites(dst); |
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 sk_ref_sp(dstCS)); | 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 |
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123 return nullptr; | 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, SkColorSpace* dstCS, const
SkIRect* subset) { | 133 SkPixelRef* SkGrPixelRef::deepCopy(SkColorType dstCT, SkColorProfileType dstPT, |
| 134 const SkIRect* subset) { |
134 if (nullptr == fSurface) { | 135 if (nullptr == fSurface) { |
135 return nullptr; | 136 return nullptr; |
136 } | 137 } |
137 | 138 |
138 // Note that when copying a render-target-backed pixel ref, we | 139 // Note that when copying a render-target-backed pixel ref, we |
139 // return a texture-backed pixel ref instead. This is because | 140 // return a texture-backed pixel ref instead. This is because |
140 // render-target pixel refs are usually created in conjunction with | 141 // render-target pixel refs are usually created in conjunction with |
141 // a GrTexture owned elsewhere (e.g., SkGpuDevice), and cannot live | 142 // a GrTexture owned elsewhere (e.g., SkGpuDevice), and cannot live |
142 // independently of that texture. Texture-backed pixel refs, on the other | 143 // independently of that texture. Texture-backed pixel refs, on the other |
143 // hand, own their GrTextures, and are thus self-contained. | 144 // hand, own their GrTextures, and are thus self-contained. |
144 return copy_to_new_texture_pixelref(fSurface->asTexture(), dstCT, dstCS, sub
set); | 145 return copy_to_new_texture_pixelref(fSurface->asTexture(), dstCT, dstPT, sub
set); |
145 } | 146 } |
146 | 147 |
147 static bool tryAllocBitmapPixels(SkBitmap* bitmap) { | 148 static bool tryAllocBitmapPixels(SkBitmap* bitmap) { |
148 SkBitmap::Allocator* allocator = SkBitmapCache::GetAllocator(); | 149 SkBitmap::Allocator* allocator = SkBitmapCache::GetAllocator(); |
149 if (nullptr != allocator) { | 150 if (nullptr != allocator) { |
150 return allocator->allocPixelRef(bitmap, 0); | 151 return allocator->allocPixelRef(bitmap, 0); |
151 } else { | 152 } else { |
152 // DiscardableMemory is not available, fallback to default allocator | 153 // DiscardableMemory is not available, fallback to default allocator |
153 return bitmap->tryAllocPixels(); | 154 return bitmap->tryAllocPixels(); |
154 } | 155 } |
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175 bounds = SkIRect::MakeWH(this->info().width(), this->info().height()); | 176 bounds = SkIRect::MakeWH(this->info().width(), this->info().height()); |
176 } | 177 } |
177 | 178 |
178 //Check the cache | 179 //Check the cache |
179 if(!SkBitmapCache::Find(this->getGenerationID(), bounds, dst)) { | 180 if(!SkBitmapCache::Find(this->getGenerationID(), bounds, dst)) { |
180 //Cache miss | 181 //Cache miss |
181 | 182 |
182 SkBitmap cachedBitmap; | 183 SkBitmap cachedBitmap; |
183 cachedBitmap.setInfo(SkImageInfo::Make(bounds.width(), bounds.height(),
colorType, | 184 cachedBitmap.setInfo(SkImageInfo::Make(bounds.width(), bounds.height(),
colorType, |
184 this->info().alphaType(), | 185 this->info().alphaType(), |
185 sk_ref_sp(this->info().colorSpace
()))); | 186 this->info().profileType())); |
186 | 187 |
187 // If we can't alloc the pixels, then fail | 188 // If we can't alloc the pixels, then fail |
188 if (!tryAllocBitmapPixels(&cachedBitmap)) { | 189 if (!tryAllocBitmapPixels(&cachedBitmap)) { |
189 return false; | 190 return false; |
190 } | 191 } |
191 | 192 |
192 // Try to read the pixels from the surface | 193 // Try to read the pixels from the surface |
193 void* buffer = cachedBitmap.getPixels(); | 194 void* buffer = cachedBitmap.getPixels(); |
194 bool readPixelsOk = fSurface->readPixels(bounds.fLeft, bounds.fTop, | 195 bool readPixelsOk = fSurface->readPixels(bounds.fLeft, bounds.fTop, |
195 bounds.width(), bounds.height(), | 196 bounds.width(), bounds.height(), |
196 config, buffer, cachedBitmap.rowBytes()); | 197 config, buffer, cachedBitmap.rowBytes()); |
197 | 198 |
198 if (!readPixelsOk) { | 199 if (!readPixelsOk) { |
199 return false; | 200 return false; |
200 } | 201 } |
201 | 202 |
202 // If we are here, pixels were read correctly from the surface. | 203 // If we are here, pixels were read correctly from the surface. |
203 cachedBitmap.setImmutable(); | 204 cachedBitmap.setImmutable(); |
204 //Add to the cache | 205 //Add to the cache |
205 SkBitmapCache::Add(this, bounds, cachedBitmap); | 206 SkBitmapCache::Add(this, bounds, cachedBitmap); |
206 | 207 |
207 dst->swap(cachedBitmap); | 208 dst->swap(cachedBitmap); |
208 } | 209 } |
209 | 210 |
210 return true; | 211 return true; |
211 | 212 |
212 } | 213 } |
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