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Side by Side Diff: include/gpu/GrFragmentProcessor.h

Issue 1275603002: Expose coord transforms from GrPipeline (Closed) Base URL: https://skia.googlesource.com/skia.git@lccleanup4
Patch Set: Created 5 years, 4 months ago
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1 /* 1 /*
2 * Copyright 2014 Google Inc. 2 * Copyright 2014 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 GrFragmentProcessor_DEFINED 8 #ifndef GrFragmentProcessor_DEFINED
9 #define GrFragmentProcessor_DEFINED 9 #define GrFragmentProcessor_DEFINED
10 10
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77 } 77 }
78 78
79 /** Do any of the coordtransforms for this processor require local coords? * / 79 /** Do any of the coordtransforms for this processor require local coords? * /
80 bool usesLocalCoords() const { return fUsesLocalCoords; } 80 bool usesLocalCoords() const { return fUsesLocalCoords; }
81 81
82 /** Returns true if this and other processor conservatively draw identically . It can only return 82 /** Returns true if this and other processor conservatively draw identically . It can only return
83 true when the two processor are of the same subclass (i.e. they return t he same object from 83 true when the two processor are of the same subclass (i.e. they return t he same object from
84 from getFactory()). 84 from getFactory()).
85 85
86 A return value of true from isEqual() should not be used to test whether the processor would 86 A return value of true from isEqual() should not be used to test whether the processor would
87 generate the same shader code. To test for identical code generation use getGLProcessorKey*/ 87 generate the same shader code. To test for identical code generation use getGLProcessorKey*/
bsalomon 2015/08/05 17:22:11 update comment? "Coord transforms may be applied
joshualitt 2015/08/05 17:46:21 Acknowledged.
88 bool isEqual(const GrFragmentProcessor& that) const { 88 bool isEqual(const GrFragmentProcessor& that, bool ignoreCoordTransforms) co nst {
89 if (this->classID() != that.classID() || 89 if (this->classID() != that.classID() ||
90 !this->hasSameTransforms(that) ||
91 !this->hasSameTextureAccesses(that)) { 90 !this->hasSameTextureAccesses(that)) {
92 return false; 91 return false;
93 } 92 }
93 if (ignoreCoordTransforms) {
94 if (this->numTransforms() != that.numTransforms()) {
95 return false;
96 }
97 } else if (!this->hasSameTransforms(that)) {
98 return false;
99 }
94 return this->onIsEqual(that); 100 return this->onIsEqual(that);
95 } 101 }
96 102
97 /** 103 /**
98 * This function is used to perform optimizations. When called the invarient Ouput param 104 * This function is used to perform optimizations. When called the invarient Ouput param
99 * indicate whether the input components to this processor in the FS will ha ve known values. 105 * indicate whether the input components to this processor in the FS will ha ve known values.
100 * In inout the validFlags member is a bitfield of GrColorComponentFlags. Th e isSingleComponent 106 * In inout the validFlags member is a bitfield of GrColorComponentFlags. Th e isSingleComponent
101 * member indicates whether the input will be 1 or 4 bytes. The function upd ates the members of 107 * member indicates whether the input will be 1 or 4 bytes. The function upd ates the members of
102 * inout to indicate known values of its output. A component of the color me mber only has 108 * inout to indicate known values of its output. A component of the color me mber only has
103 * meaning if the corresponding bit in validFlags is set. 109 * meaning if the corresponding bit in validFlags is set.
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154 bool hasSameTransforms(const GrFragmentProcessor&) const; 160 bool hasSameTransforms(const GrFragmentProcessor&) const;
155 161
156 SkSTArray<4, const GrCoordTransform*, true> fCoordTransforms; 162 SkSTArray<4, const GrCoordTransform*, true> fCoordTransforms;
157 bool fUsesLocalCoords; 163 bool fUsesLocalCoords;
158 SkTArray<GrFragmentProcessor*, false> fChildProcessors; 164 SkTArray<GrFragmentProcessor*, false> fChildProcessors;
159 165
160 typedef GrProcessor INHERITED; 166 typedef GrProcessor INHERITED;
161 }; 167 };
162 168
163 #endif 169 #endif
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