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Side by Side Diff: src/effects/SkTableColorFilter.cpp

Issue 24853002: Make GPU coord transforms automatic (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: rebase Created 7 years, 2 months ago
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1 1
2 #include "SkBitmap.h" 2 #include "SkBitmap.h"
3 #include "SkTableColorFilter.h" 3 #include "SkTableColorFilter.h"
4 #include "SkColorPriv.h" 4 #include "SkColorPriv.h"
5 #include "SkFlattenableBuffers.h" 5 #include "SkFlattenableBuffers.h"
6 #include "SkUnPreMultiply.h" 6 #include "SkUnPreMultiply.h"
7 #include "SkString.h" 7 #include "SkString.h"
8 8
9 class SkTable_ColorFilter : public SkColorFilter { 9 class SkTable_ColorFilter : public SkColorFilter {
10 public: 10 public:
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265 265
266 class GLColorTableEffect : public GrGLEffect { 266 class GLColorTableEffect : public GrGLEffect {
267 public: 267 public:
268 GLColorTableEffect(const GrBackendEffectFactory&, const GrDrawEffect&); 268 GLColorTableEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
269 269
270 virtual void emitCode(GrGLShaderBuilder*, 270 virtual void emitCode(GrGLShaderBuilder*,
271 const GrDrawEffect&, 271 const GrDrawEffect&,
272 EffectKey, 272 EffectKey,
273 const char* outputColor, 273 const char* outputColor,
274 const char* inputColor, 274 const char* inputColor,
275 const TransformedCoordsArray&,
275 const TextureSamplerArray&) SK_OVERRIDE; 276 const TextureSamplerArray&) SK_OVERRIDE;
276 277
277 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER RIDE {} 278 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER RIDE {}
278 279
279 static EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&); 280 static EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&);
280 281
281 private: 282 private:
282 283
283 typedef GrGLEffect INHERITED; 284 typedef GrGLEffect INHERITED;
284 }; 285 };
285 286
286 GLColorTableEffect::GLColorTableEffect(const GrBackendEffectFactory& factory, co nst GrDrawEffect&) 287 GLColorTableEffect::GLColorTableEffect(const GrBackendEffectFactory& factory, co nst GrDrawEffect&)
287 : INHERITED(factory) { 288 : INHERITED(factory) {
288 } 289 }
289 290
290 void GLColorTableEffect::emitCode(GrGLShaderBuilder* builder, 291 void GLColorTableEffect::emitCode(GrGLShaderBuilder* builder,
291 const GrDrawEffect&, 292 const GrDrawEffect&,
292 EffectKey, 293 EffectKey,
293 const char* outputColor, 294 const char* outputColor,
294 const char* inputColor, 295 const char* inputColor,
296 const TransformedCoordsArray&,
295 const TextureSamplerArray& samplers) { 297 const TextureSamplerArray& samplers) {
296 298
297 static const float kColorScaleFactor = 255.0f / 256.0f; 299 static const float kColorScaleFactor = 255.0f / 256.0f;
298 static const float kColorOffsetFactor = 1.0f / 512.0f; 300 static const float kColorOffsetFactor = 1.0f / 512.0f;
299 if (NULL == inputColor) { 301 if (NULL == inputColor) {
300 // the input color is solid white (all ones). 302 // the input color is solid white (all ones).
301 static const float kMaxValue = kColorScaleFactor + kColorOffsetFactor; 303 static const float kMaxValue = kColorScaleFactor + kColorOffsetFactor;
302 builder->fsCodeAppendf("\t\tvec4 coord = vec4(%f, %f, %f, %f);\n", 304 builder->fsCodeAppendf("\t\tvec4 coord = vec4(%f, %f, %f, %f);\n",
303 kMaxValue, kMaxValue, kMaxValue, kMaxValue); 305 kMaxValue, kMaxValue, kMaxValue, kMaxValue);
304 306
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422 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256], 424 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256],
423 const uint8_t tableR[256], 425 const uint8_t tableR[256],
424 const uint8_t tableG[256], 426 const uint8_t tableG[256],
425 const uint8_t tableB[256]) { 427 const uint8_t tableB[256]) {
426 return SkNEW_ARGS(SkTable_ColorFilter, (tableA, tableR, tableG, tableB)); 428 return SkNEW_ARGS(SkTable_ColorFilter, (tableA, tableR, tableG, tableB));
427 } 429 }
428 430
429 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter) 431 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter)
430 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter) 432 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter)
431 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END 433 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END
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