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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "SkColorCubeFilter.h" | 8 #include "SkColorCubeFilter.h" |
9 #include "SkColorPriv.h" | 9 #include "SkColorPriv.h" |
10 #include "SkOnce.h" | 10 #include "SkOnce.h" |
11 #include "SkOpts.h" | 11 #include "SkOpts.h" |
12 #include "SkReadBuffer.h" | 12 #include "SkReadBuffer.h" |
13 #include "SkUnPreMultiply.h" | 13 #include "SkUnPreMultiply.h" |
14 #include "SkWriteBuffer.h" | 14 #include "SkWriteBuffer.h" |
15 #if SK_SUPPORT_GPU | 15 #if SK_SUPPORT_GPU |
16 #include "GrContext.h" | 16 #include "GrContext.h" |
17 #include "GrCoordTransform.h" | 17 #include "GrCoordTransform.h" |
18 #include "GrInvariantOutput.h" | 18 #include "GrInvariantOutput.h" |
19 #include "GrTexturePriv.h" | 19 #include "GrTexturePriv.h" |
20 #include "SkGr.h" | 20 #include "SkGr.h" |
21 #include "gl/GrGLFragmentProcessor.h" | 21 #include "gl/GrGLFragmentProcessor.h" |
22 #include "gl/builders/GrGLProgramBuilder.h" | 22 #include "gl/builders/GrGLProgramBuilder.h" |
| 23 #include "glsl/GrGLSLProgramDataManager.h" |
23 #endif | 24 #endif |
24 | 25 |
25 /////////////////////////////////////////////////////////////////////////////// | 26 /////////////////////////////////////////////////////////////////////////////// |
26 namespace { | 27 namespace { |
27 | 28 |
28 int32_t SkNextColorCubeUniqueID() { | 29 int32_t SkNextColorCubeUniqueID() { |
29 static int32_t gColorCubeUniqueID; | 30 static int32_t gColorCubeUniqueID; |
30 // do a loop in case our global wraps around, as we never want to return a 0 | 31 // do a loop in case our global wraps around, as we never want to return a 0 |
31 int32_t genID; | 32 int32_t genID; |
32 do { | 33 do { |
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176 class GLProcessor : public GrGLFragmentProcessor { | 177 class GLProcessor : public GrGLFragmentProcessor { |
177 public: | 178 public: |
178 GLProcessor(const GrProcessor&); | 179 GLProcessor(const GrProcessor&); |
179 virtual ~GLProcessor(); | 180 virtual ~GLProcessor(); |
180 | 181 |
181 virtual void emitCode(EmitArgs&) override; | 182 virtual void emitCode(EmitArgs&) override; |
182 | 183 |
183 static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProce
ssorKeyBuilder*); | 184 static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProce
ssorKeyBuilder*); |
184 | 185 |
185 protected: | 186 protected: |
186 void onSetData(const GrGLProgramDataManager&, const GrProcessor&) overri
de; | 187 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) over
ride; |
187 | 188 |
188 private: | 189 private: |
189 GrGLProgramDataManager::UniformHandle fColorCubeSizeUni; | 190 GrGLSLProgramDataManager::UniformHandle fColorCubeSizeUni; |
190 GrGLProgramDataManager::UniformHandle fColorCubeInvSizeUni; | 191 GrGLSLProgramDataManager::UniformHandle fColorCubeInvSizeUni; |
191 | 192 |
192 typedef GrGLFragmentProcessor INHERITED; | 193 typedef GrGLFragmentProcessor INHERITED; |
193 }; | 194 }; |
194 | 195 |
195 private: | 196 private: |
196 virtual void onGetGLProcessorKey(const GrGLSLCaps& caps, | 197 virtual void onGetGLProcessorKey(const GrGLSLCaps& caps, |
197 GrProcessorKeyBuilder* b) const override; | 198 GrProcessorKeyBuilder* b) const override; |
198 | 199 |
199 GrGLFragmentProcessor* onCreateGLInstance() const override; | 200 GrGLFragmentProcessor* onCreateGLInstance() const override; |
200 | 201 |
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284 fsBuilder->codeAppendf("%s = vec4(mix(", args.fOutputColor); | 285 fsBuilder->codeAppendf("%s = vec4(mix(", args.fOutputColor); |
285 fsBuilder->appendTextureLookup(args.fSamplers[0], cCoords1); | 286 fsBuilder->appendTextureLookup(args.fSamplers[0], cCoords1); |
286 fsBuilder->codeAppend(".rgb, "); | 287 fsBuilder->codeAppend(".rgb, "); |
287 fsBuilder->appendTextureLookup(args.fSamplers[0], cCoords2); | 288 fsBuilder->appendTextureLookup(args.fSamplers[0], cCoords2); |
288 | 289 |
289 // Premultiply color by alpha. Note that the input alpha is not modified by
this shader. | 290 // Premultiply color by alpha. Note that the input alpha is not modified by
this shader. |
290 fsBuilder->codeAppendf(".rgb, fract(%s.b)) * vec3(%s), %s.a);\n", | 291 fsBuilder->codeAppendf(".rgb, fract(%s.b)) * vec3(%s), %s.a);\n", |
291 cubeIdx, nonZeroAlpha, args.fInputColor); | 292 cubeIdx, nonZeroAlpha, args.fInputColor); |
292 } | 293 } |
293 | 294 |
294 void GrColorCubeEffect::GLProcessor::onSetData(const GrGLProgramDataManager& pdm
an, | 295 void GrColorCubeEffect::GLProcessor::onSetData(const GrGLSLProgramDataManager& p
dman, |
295 const GrProcessor& proc) { | 296 const GrProcessor& proc) { |
296 const GrColorCubeEffect& colorCube = proc.cast<GrColorCubeEffect>(); | 297 const GrColorCubeEffect& colorCube = proc.cast<GrColorCubeEffect>(); |
297 SkScalar size = SkIntToScalar(colorCube.colorCubeSize()); | 298 SkScalar size = SkIntToScalar(colorCube.colorCubeSize()); |
298 pdman.set1f(fColorCubeSizeUni, SkScalarToFloat(size)); | 299 pdman.set1f(fColorCubeSizeUni, SkScalarToFloat(size)); |
299 pdman.set1f(fColorCubeInvSizeUni, SkScalarToFloat(SkScalarInvert(size))); | 300 pdman.set1f(fColorCubeInvSizeUni, SkScalarToFloat(SkScalarInvert(size))); |
300 } | 301 } |
301 | 302 |
302 void GrColorCubeEffect::GLProcessor::GenKey(const GrProcessor& proc, | 303 void GrColorCubeEffect::GLProcessor::GenKey(const GrProcessor& proc, |
303 const GrGLSLCaps&, GrProcessorKeyBui
lder* b) { | 304 const GrGLSLCaps&, GrProcessorKeyBui
lder* b) { |
304 } | 305 } |
305 | 306 |
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324 if (textureCube) { | 325 if (textureCube) { |
325 context->textureProvider()->assignUniqueKeyToTexture(key, textureCub
e); | 326 context->textureProvider()->assignUniqueKeyToTexture(key, textureCub
e); |
326 } else { | 327 } else { |
327 return nullptr; | 328 return nullptr; |
328 } | 329 } |
329 } | 330 } |
330 | 331 |
331 return GrColorCubeEffect::Create(textureCube); | 332 return GrColorCubeEffect::Create(textureCube); |
332 } | 333 } |
333 #endif | 334 #endif |
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