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1 /*
2  * Copyright 2014 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "GrInvariantOutput.h"
9 
10 #ifdef SK_DEBUG
11 
validate() const12 void GrInvariantOutput::validate() const {
13     if (fIsSingleComponent) {
14         SkASSERT(0 == fValidFlags || kRGBA_GrColorComponentFlags == fValidFlags);
15         if (kRGBA_GrColorComponentFlags == fValidFlags) {
16             SkASSERT(this->colorComponentsAllEqual());
17         }
18     }
19 
20     // If we claim that we are not using the input color we must not be modulating the input.
21     SkASSERT(fNonMulStageFound || fWillUseInputColor);
22 }
23 
colorComponentsAllEqual() const24 bool GrInvariantOutput::colorComponentsAllEqual() const {
25     unsigned colorA = GrColorUnpackA(fColor);
26     return(GrColorUnpackR(fColor) == colorA &&
27            GrColorUnpackG(fColor) == colorA &&
28            GrColorUnpackB(fColor) == colorA);
29 }
30 
31 #endif // end DEBUG
32 
33