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Side by Side Diff: src/effects/gradients/SkGradientShaderPriv.h

Issue 1428543003: Create GLSL base class for ProgramDataManager (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: add space Created 5 years, 1 month ago
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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
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290 return toggle ^ SkGradientShaderBase::kDitherStride16; 290 return toggle ^ SkGradientShaderBase::kDitherStride16;
291 } 291 }
292 292
293 /////////////////////////////////////////////////////////////////////////////// 293 ///////////////////////////////////////////////////////////////////////////////
294 294
295 #if SK_SUPPORT_GPU 295 #if SK_SUPPORT_GPU
296 296
297 #include "GrCoordTransform.h" 297 #include "GrCoordTransform.h"
298 #include "GrFragmentProcessor.h" 298 #include "GrFragmentProcessor.h"
299 #include "gl/GrGLFragmentProcessor.h" 299 #include "gl/GrGLFragmentProcessor.h"
300 #include "glsl/GrGLSLProgramDataManager.h"
300 301
301 class GrInvariantOutput; 302 class GrInvariantOutput;
302 303
303 /* 304 /*
304 * The interpretation of the texture matrix depends on the sample mode. The 305 * The interpretation of the texture matrix depends on the sample mode. The
305 * texture matrix is applied both when the texture coordinates are explicit 306 * texture matrix is applied both when the texture coordinates are explicit
306 * and when vertex positions are used as texture coordinates. In the latter 307 * and when vertex positions are used as texture coordinates. In the latter
307 * case the texture matrix is applied to the pre-view-matrix position 308 * case the texture matrix is applied to the pre-view-matrix position
308 * values. 309 * values.
309 * 310 *
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394 395
395 /////////////////////////////////////////////////////////////////////////////// 396 ///////////////////////////////////////////////////////////////////////////////
396 397
397 // Base class for GL gradient effects 398 // Base class for GL gradient effects
398 class GrGLGradientEffect : public GrGLFragmentProcessor { 399 class GrGLGradientEffect : public GrGLFragmentProcessor {
399 public: 400 public:
400 GrGLGradientEffect(); 401 GrGLGradientEffect();
401 virtual ~GrGLGradientEffect(); 402 virtual ~GrGLGradientEffect();
402 403
403 protected: 404 protected:
404 void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; 405 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override ;
405 406
406 protected: 407 protected:
407 /** 408 /**
408 * Subclasses must call this. It will return a key for the part of the shade r code controlled 409 * Subclasses must call this. It will return a key for the part of the shade r code controlled
409 * by the base class. The subclasses must stick it in their key and then pas s it to the below 410 * by the base class. The subclasses must stick it in their key and then pas s it to the below
410 * emit* functions from their emitCode function. 411 * emit* functions from their emitCode function.
411 */ 412 */
412 static uint32_t GenBaseGradientKey(const GrProcessor&); 413 static uint32_t GenBaseGradientKey(const GrProcessor&);
413 414
414 // Emits the uniform used as the y-coord to texture samples in derived class es. Subclasses 415 // Emits the uniform used as the y-coord to texture samples in derived class es. Subclasses
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437 kColorKeyMask = kTwoColorKey | kThreeColorKey, 438 kColorKeyMask = kTwoColorKey | kThreeColorKey,
438 kColorKeyBitCnt = 2, 439 kColorKeyBitCnt = 2,
439 440
440 // Subclasses must shift any key bits they produce up by this amount 441 // Subclasses must shift any key bits they produce up by this amount
441 // and combine with the result of GenBaseGradientKey. 442 // and combine with the result of GenBaseGradientKey.
442 kBaseKeyBitCnt = (kPremulTypeKeyBitCnt + kColorKeyBitCnt) 443 kBaseKeyBitCnt = (kPremulTypeKeyBitCnt + kColorKeyBitCnt)
443 }; 444 };
444 GR_STATIC_ASSERT(kBaseKeyBitCnt <= 32); 445 GR_STATIC_ASSERT(kBaseKeyBitCnt <= 32);
445 446
446 SkScalar fCachedYCoord; 447 SkScalar fCachedYCoord;
447 GrGLProgramDataManager::UniformHandle fFSYUni; 448 GrGLSLProgramDataManager::UniformHandle fFSYUni;
448 GrGLProgramDataManager::UniformHandle fColorStartUni; 449 GrGLSLProgramDataManager::UniformHandle fColorStartUni;
449 GrGLProgramDataManager::UniformHandle fColorMidUni; 450 GrGLSLProgramDataManager::UniformHandle fColorMidUni;
450 GrGLProgramDataManager::UniformHandle fColorEndUni; 451 GrGLSLProgramDataManager::UniformHandle fColorEndUni;
451 452
452 typedef GrGLFragmentProcessor INHERITED; 453 typedef GrGLFragmentProcessor INHERITED;
453 }; 454 };
454 455
455 #endif 456 #endif
456 457
457 #endif 458 #endif
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