1 /*
2 * Copyright 2013 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 "GrPathProcessor.h"
9
10 #include "gl/GrGLPathProcessor.h"
11 #include "gl/GrGLGpu.h"
12
GrPathProcessor(GrColor color,const SkMatrix & viewMatrix,const SkMatrix & localMatrix)13 GrPathProcessor::GrPathProcessor(GrColor color,
14 const SkMatrix& viewMatrix,
15 const SkMatrix& localMatrix)
16 : INHERITED(true)
17 , fColor(color)
18 , fViewMatrix(viewMatrix)
19 , fLocalMatrix(localMatrix) {
20 this->initClassID<GrPathProcessor>();
21 }
22
getInvariantOutputColor(GrInitInvariantOutput * out) const23 void GrPathProcessor::getInvariantOutputColor(GrInitInvariantOutput* out) const {
24 out->setKnownFourComponents(fColor);
25 }
26
getInvariantOutputCoverage(GrInitInvariantOutput * out) const27 void GrPathProcessor::getInvariantOutputCoverage(GrInitInvariantOutput* out) const {
28 out->setKnownSingleComponent(0xff);
29 }
30
initBatchTracker(GrBatchTracker * bt,const GrPipelineInfo & init) const31 void GrPathProcessor::initBatchTracker(GrBatchTracker* bt, const GrPipelineInfo& init) const {
32 PathBatchTracker* local = bt->cast<PathBatchTracker>();
33 if (init.fColorIgnored) {
34 local->fInputColorType = kIgnored_GrGPInput;
35 local->fColor = GrColor_ILLEGAL;
36 } else {
37 local->fInputColorType = kUniform_GrGPInput;
38 local->fColor = GrColor_ILLEGAL == init.fOverrideColor ? this->color() :
39 init.fOverrideColor;
40 }
41
42 local->fInputCoverageType = init.fCoverageIgnored ? kIgnored_GrGPInput : kAllOnes_GrGPInput;
43 local->fUsesLocalCoords = init.fUsesLocalCoords;
44 }
45
canMakeEqual(const GrBatchTracker & m,const GrPrimitiveProcessor & that,const GrBatchTracker & t) const46 bool GrPathProcessor::canMakeEqual(const GrBatchTracker& m,
47 const GrPrimitiveProcessor& that,
48 const GrBatchTracker& t) const {
49 if (this->classID() != that.classID() || !this->hasSameTextureAccesses(that)) {
50 return false;
51 }
52
53 const GrPathProcessor& other = that.cast<GrPathProcessor>();
54 if (!this->viewMatrix().cheapEqualTo(other.viewMatrix())) {
55 return false;
56 }
57
58 const PathBatchTracker& mine = m.cast<PathBatchTracker>();
59 const PathBatchTracker& theirs = t.cast<PathBatchTracker>();
60 return CanCombineLocalMatrices(*this, mine.fUsesLocalCoords,
61 that, theirs.fUsesLocalCoords) &&
62 CanCombineOutput(mine.fInputColorType, mine.fColor,
63 theirs.fInputColorType, theirs.fColor) &&
64 CanCombineOutput(mine.fInputCoverageType, 0xff,
65 theirs.fInputCoverageType, 0xff);
66 }
67
getGLProcessorKey(const GrBatchTracker & bt,const GrGLSLCaps & caps,GrProcessorKeyBuilder * b) const68 void GrPathProcessor::getGLProcessorKey(const GrBatchTracker& bt,
69 const GrGLSLCaps& caps,
70 GrProcessorKeyBuilder* b) const {
71 GrGLPathProcessor::GenKey(*this, bt, caps, b);
72 }
73
createGLInstance(const GrBatchTracker & bt,const GrGLSLCaps & caps) const74 GrGLPrimitiveProcessor* GrPathProcessor::createGLInstance(const GrBatchTracker& bt,
75 const GrGLSLCaps& caps) const {
76 SkASSERT(caps.pathRenderingSupport());
77 return SkNEW_ARGS(GrGLPathProcessor, (*this, bt));
78 }
79