blob: 5e112f9f9173caa1cec723882add2e33b031cf5f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrGLSLColorSpaceXformHelper_DEFINED
#define GrGLSLColorSpaceXformHelper_DEFINED
#include "GrColorSpaceXform.h"
#include "GrGLSLUniformHandler.h"
/**
* Stack helper class to assist with using GrColorSpaceXform within an FP's emitCode function.
* This injects the uniform declaration, and stores the information needed to generate correct
* gamut-transformation shader code.
*/
class GrGLSLColorSpaceXformHelper : public SkNoncopyable {
public:
GrGLSLColorSpaceXformHelper(GrGLSLUniformHandler* uniformHandler,
GrColorSpaceXform* colorSpaceXform,
GrGLSLProgramDataManager::UniformHandle* handle) {
SkASSERT(uniformHandler && handle);
if (colorSpaceXform) {
*handle = uniformHandler->addUniform(kFragment_GrShaderFlag, kMat44f_GrSLType,
kDefault_GrSLPrecision, "ColorXform",
&fXformMatrix);
} else {
fXformMatrix = nullptr;
}
}
const char* getXformMatrix() const { return fXformMatrix; }
private:
const char* fXformMatrix;
};
#endif
|
