gfx/skia/trunk/src/gpu/effects/GrBicubicEffect.h@129ffea94266
gfx/skia/trunk/src/gpu/effects/GrBicubicEffect.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
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 */
8 #ifndef GrBicubicTextureEffect_DEFINED
9 #define GrBicubicTextureEffect_DEFINED
11 #include "GrSingleTextureEffect.h"
12 #include "GrTextureDomain.h"
13 #include "GrDrawEffect.h"
14 #include "gl/GrGLEffect.h"
15 #include "GrTBackendEffectFactory.h"
17 class GrGLBicubicEffect;
19 class GrBicubicEffect : public GrSingleTextureEffect {
20 public:
21 enum {
22 kFilterTexelPad = 2, // Given a src rect in texels to be filtered, this number of
23 // surrounding texels are needed by the kernel in x and y.
24 };
25 virtual ~GrBicubicEffect();
27 static const char* Name() { return "Bicubic"; }
28 const float* coefficients() const { return fCoefficients; }
30 typedef GrGLBicubicEffect GLEffect;
32 virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE;
33 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
35 const GrTextureDomain& domain() const { return fDomain; }
37 /**
38 * Create a simple filter effect with custom bicubic coefficients and optional domain.
39 */
40 static GrEffectRef* Create(GrTexture* tex, const SkScalar coefficients[16],
41 const SkRect* domain = NULL) {
42 if (NULL == domain) {
43 static const SkShader::TileMode kTileModes[] = { SkShader::kClamp_TileMode,
44 SkShader::kClamp_TileMode };
45 return Create(tex, coefficients, MakeDivByTextureWHMatrix(tex), kTileModes);
46 } else {
47 AutoEffectUnref effect(SkNEW_ARGS(GrBicubicEffect, (tex, coefficients,
48 MakeDivByTextureWHMatrix(tex),
49 *domain)));
50 return CreateEffectRef(effect);
51 }
52 }
54 /**
55 * Create a Mitchell filter effect with specified texture matrix and x/y tile modes.
56 */
57 static GrEffectRef* Create(GrTexture* tex, const SkMatrix& matrix,
58 SkShader::TileMode tileModes[2]) {
59 return Create(tex, gMitchellCoefficients, matrix, tileModes);
60 }
62 /**
63 * Create a filter effect with custom bicubic coefficients, the texture matrix, and the x/y
64 * tilemodes.
65 */
66 static GrEffectRef* Create(GrTexture* tex, const SkScalar coefficients[16],
67 const SkMatrix& matrix, const SkShader::TileMode tileModes[2]) {
68 AutoEffectUnref effect(SkNEW_ARGS(GrBicubicEffect, (tex, coefficients, matrix, tileModes)));
69 return CreateEffectRef(effect);
70 }
72 /**
73 * Create a Mitchell filter effect with a texture matrix and a domain.
74 */
75 static GrEffectRef* Create(GrTexture* tex, const SkMatrix& matrix, const SkRect& domain) {
76 AutoEffectUnref effect(SkNEW_ARGS(GrBicubicEffect, (tex, gMitchellCoefficients, matrix,
77 domain)));
78 return CreateEffectRef(effect);
79 }
81 private:
82 GrBicubicEffect(GrTexture*, const SkScalar coefficients[16],
83 const SkMatrix &matrix, const SkShader::TileMode tileModes[2]);
84 GrBicubicEffect(GrTexture*, const SkScalar coefficients[16],
85 const SkMatrix &matrix, const SkRect& domain);
86 virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE;
88 float fCoefficients[16];
89 GrTextureDomain fDomain;
91 GR_DECLARE_EFFECT_TEST;
93 static const SkScalar gMitchellCoefficients[16];
95 typedef GrSingleTextureEffect INHERITED;
96 };
98 #endif
