OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 #ifndef SkGradientShaderPriv_DEFINED | 8 #ifndef SkGradientShaderPriv_DEFINED |
9 #define SkGradientShaderPriv_DEFINED | 9 #define SkGradientShaderPriv_DEFINED |
10 | 10 |
(...skipping 299 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
310 /** | 310 /** |
311 * Inserts code to implement the GrGradientEffect's matrix. This should be c
alled before a | 311 * Inserts code to implement the GrGradientEffect's matrix. This should be c
alled before a |
312 * subclass emits its own code. The name of the 2D coords is output via fsCo
ordName and already | 312 * subclass emits its own code. The name of the 2D coords is output via fsCo
ordName and already |
313 * incorporates any perspective division. The caller can also optionally ret
rieve the name of | 313 * incorporates any perspective division. The caller can also optionally ret
rieve the name of |
314 * the varying inserted in the VS and its type, which may be either vec2f or
vec3f depending | 314 * the varying inserted in the VS and its type, which may be either vec2f or
vec3f depending |
315 * upon whether the matrix has perspective or not. It is not necessary to ma
sk the key before | 315 * upon whether the matrix has perspective or not. It is not necessary to ma
sk the key before |
316 * calling. | 316 * calling. |
317 */ | 317 */ |
318 void setupMatrix(GrGLShaderBuilder* builder, | 318 void setupMatrix(GrGLShaderBuilder* builder, |
319 EffectKey key, | 319 EffectKey key, |
320 const char** fsCoordName, | 320 SkString* fsCoordName, |
321 const char** vsVaryingName = NULL, | 321 SkString* vsVaryingName = NULL, |
322 GrSLType* vsVaryingType = NULL); | 322 GrSLType* vsVaryingType = NULL); |
323 | 323 |
324 // Emits the uniform used as the y-coord to texture samples in derived class
es. Subclasses | 324 // Emits the uniform used as the y-coord to texture samples in derived class
es. Subclasses |
325 // should call this method from their emitCode(). | 325 // should call this method from their emitCode(). |
326 void emitYCoordUniform(GrGLShaderBuilder* builder); | 326 void emitYCoordUniform(GrGLShaderBuilder* builder); |
327 | 327 |
328 // emit code that gets a fragment's color from an expression for t; for now
this always uses the | 328 // emit code that gets a fragment's color from an expression for t; for now
this always uses the |
329 // texture, but for simpler cases we'll be able to lerp. Subclasses should c
all this method from | 329 // texture, but for simpler cases we'll be able to lerp. Subclasses should c
all this method from |
330 // their emitCode(). | 330 // their emitCode(). |
331 void emitColorLookup(GrGLShaderBuilder* builder, | 331 void emitColorLookup(GrGLShaderBuilder* builder, |
332 const char* gradientTValue, | 332 const char* gradientTValue, |
333 const char* outputColor, | 333 const char* outputColor, |
334 const char* inputColor, | 334 const char* inputColor, |
335 const GrGLShaderBuilder::TextureSampler&); | 335 const GrGLShaderBuilder::TextureSampler&); |
336 | 336 |
337 private: | 337 private: |
338 static const GrEffect::CoordsType kCoordsType = GrEffect::kLocal_CoordsType; | 338 static const GrEffect::CoordsType kCoordsType = GrEffect::kLocal_CoordsType; |
339 | 339 |
340 SkScalar fCachedYCoord; | 340 SkScalar fCachedYCoord; |
341 GrGLUniformManager::UniformHandle fFSYUni; | 341 GrGLUniformManager::UniformHandle fFSYUni; |
342 GrGLEffectMatrix fEffectMatrix; | 342 GrGLEffectMatrix fEffectMatrix; |
343 | 343 |
344 typedef GrGLEffect INHERITED; | 344 typedef GrGLEffect INHERITED; |
345 }; | 345 }; |
346 | 346 |
347 #endif | 347 #endif |
348 | 348 |
349 #endif | 349 #endif |
OLD | NEW |