Index: src/gpu/GrBlend.h |
diff --git a/src/gpu/GrBlend.h b/src/gpu/GrBlend.h |
deleted file mode 100644 |
index 7021902765bd07024cbe4b8c0d88961c87504908..0000000000000000000000000000000000000000 |
--- a/src/gpu/GrBlend.h |
+++ /dev/null |
@@ -1,155 +0,0 @@ |
- |
-/* |
- * Copyright 2013 Google Inc. |
- * |
- * Use of this source code is governed by a BSD-style license that can be |
- * found in the LICENSE file. |
- */ |
- |
-#include "GrTypes.h" |
-#include "SkTLogic.h" |
-#include "GrXferProcessor.h" |
- |
-#ifndef GrBlend_DEFINED |
-#define GrBlend_DEFINED |
- |
-template<GrBlendCoeff Coeff> |
-struct GrTBlendCoeffRefsSrc : SkTBool<kSC_GrBlendCoeff == Coeff || |
- kISC_GrBlendCoeff == Coeff || |
- kSA_GrBlendCoeff == Coeff || |
- kISA_GrBlendCoeff == Coeff> {}; |
- |
-#define GR_BLEND_COEFF_REFS_SRC(COEFF) \ |
- GrTBlendCoeffRefsSrc<COEFF>::value |
- |
-inline bool GrBlendCoeffRefsSrc(GrBlendCoeff coeff) { |
- switch (coeff) { |
- case kSC_GrBlendCoeff: |
- case kISC_GrBlendCoeff: |
- case kSA_GrBlendCoeff: |
- case kISA_GrBlendCoeff: |
- return true; |
- default: |
- return false; |
- } |
-} |
- |
- |
-template<GrBlendCoeff Coeff> |
-struct GrTBlendCoeffRefsDst : SkTBool<kDC_GrBlendCoeff == Coeff || |
- kIDC_GrBlendCoeff == Coeff || |
- kDA_GrBlendCoeff == Coeff || |
- kIDA_GrBlendCoeff == Coeff> {}; |
- |
-#define GR_BLEND_COEFF_REFS_DST(COEFF) \ |
- GrTBlendCoeffRefsDst<COEFF>::value |
- |
-inline bool GrBlendCoeffRefsDst(GrBlendCoeff coeff) { |
- switch (coeff) { |
- case kDC_GrBlendCoeff: |
- case kIDC_GrBlendCoeff: |
- case kDA_GrBlendCoeff: |
- case kIDA_GrBlendCoeff: |
- return true; |
- default: |
- return false; |
- } |
-} |
- |
- |
-template<GrBlendCoeff Coeff> |
-struct GrTBlendCoeffRefsSrc2 : SkTBool<kS2C_GrBlendCoeff == Coeff || |
- kIS2C_GrBlendCoeff == Coeff || |
- kS2A_GrBlendCoeff == Coeff || |
- kIS2A_GrBlendCoeff == Coeff> {}; |
- |
-#define GR_BLEND_COEFF_REFS_SRC2(COEFF) \ |
- GrTBlendCoeffRefsSrc2<COEFF>::value |
- |
-inline bool GrBlendCoeffRefsSrc2(GrBlendCoeff coeff) { |
- switch (coeff) { |
- case kS2C_GrBlendCoeff: |
- case kIS2C_GrBlendCoeff: |
- case kS2A_GrBlendCoeff: |
- case kIS2A_GrBlendCoeff: |
- return true; |
- default: |
- return false; |
- } |
-} |
- |
- |
-template<GrBlendCoeff SrcCoeff, GrBlendCoeff DstCoeff> |
-struct GrTBlendCoeffsUseSrcColor : SkTBool<kZero_GrBlendCoeff != SrcCoeff || |
- GR_BLEND_COEFF_REFS_SRC(DstCoeff)> {}; |
- |
-#define GR_BLEND_COEFFS_USE_SRC_COLOR(SRC_COEFF, DST_COEFF) \ |
- GrTBlendCoeffsUseSrcColor<SRC_COEFF, DST_COEFF>::value |
- |
- |
-template<GrBlendCoeff SrcCoeff, GrBlendCoeff DstCoeff> |
-struct GrTBlendCoeffsUseDstColor : SkTBool<GR_BLEND_COEFF_REFS_DST(SrcCoeff) || |
- kZero_GrBlendCoeff != DstCoeff> {}; |
- |
-#define GR_BLEND_COEFFS_USE_DST_COLOR(SRC_COEFF, DST_COEFF) \ |
- GrTBlendCoeffsUseDstColor<SRC_COEFF, DST_COEFF>::value |
- |
- |
-template<GrBlendEquation Equation> |
-struct GrTBlendEquationIsAdvanced : SkTBool<Equation >= kFirstAdvancedGrBlendEquation> {}; |
- |
-#define GR_BLEND_EQUATION_IS_ADVANCED(EQUATION) \ |
- GrTBlendEquationIsAdvanced<EQUATION>::value |
- |
-inline bool GrBlendEquationIsAdvanced(GrBlendEquation equation) { |
- return equation >= kFirstAdvancedGrBlendEquation; |
-} |
- |
- |
-template<GrBlendEquation BlendEquation, GrBlendCoeff SrcCoeff, GrBlendCoeff DstCoeff> |
-struct GrTBlendModifiesDst : SkTBool<(kAdd_GrBlendEquation != BlendEquation && |
- kReverseSubtract_GrBlendEquation != BlendEquation) || |
- kZero_GrBlendCoeff != SrcCoeff || |
- kOne_GrBlendCoeff != DstCoeff> {}; |
- |
-#define GR_BLEND_MODIFIES_DST(EQUATION, SRC_COEFF, DST_COEFF) \ |
- GrTBlendModifiesDst<EQUATION, SRC_COEFF, DST_COEFF>::value |
- |
- |
-/** |
- * Advanced blend equations can always tweak alpha for coverage. (See GrCustomXfermode.cpp) |
- * |
- * For "add" and "reverse subtract" the blend equation with f=coverage is: |
- * |
- * D' = f * (S * srcCoeff + D * dstCoeff) + (1-f) * D |
- * = f * S * srcCoeff + D * (f * dstCoeff + (1 - f)) |
- * |
- * (Let srcCoeff be negative for reverse subtract.) We can tweak alpha for coverage when the |
- * following relationship holds: |
- * |
- * (f*S) * srcCoeff' + D * dstCoeff' == f * S * srcCoeff + D * (f * dstCoeff + (1 - f)) |
- * |
- * (Where srcCoeff' and dstCoeff' have any reference to S pre-multiplied by f.) |
- * |
- * It's easy to see this works for the src term as long as srcCoeff' == srcCoeff (meaning srcCoeff |
- * does not reference S). For the dst term, this will work as long as the following is true: |
- *| |
- * dstCoeff' == f * dstCoeff + (1 - f) |
- * dstCoeff' == 1 - f * (1 - dstCoeff) |
- * |
- * By inspection we can see this will work as long as dstCoeff has a 1, and any other term in |
- * dstCoeff references S. |
- */ |
-template<GrBlendEquation Equation, GrBlendCoeff SrcCoeff, GrBlendCoeff DstCoeff> |
-struct GrTBlendCanTweakAlphaForCoverage : SkTBool<GR_BLEND_EQUATION_IS_ADVANCED(Equation) || |
- ((kAdd_GrBlendEquation == Equation || |
- kReverseSubtract_GrBlendEquation == Equation) && |
- !GR_BLEND_COEFF_REFS_SRC(SrcCoeff) && |
- (kOne_GrBlendCoeff == DstCoeff || |
- kISC_GrBlendCoeff == DstCoeff || |
- kISA_GrBlendCoeff == DstCoeff))> {}; |
- |
-#define GR_BLEND_CAN_TWEAK_ALPHA_FOR_COVERAGE(EQUATION, SRC_COEFF, DST_COEFF) \ |
- GrTBlendCanTweakAlphaForCoverage<EQUATION, SRC_COEFF, DST_COEFF>::value |
- |
-#endif |