tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 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 "GrConvolutionEffect.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 9 | #include "gl/GrGLProcessor.h" |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 10 | #include "gl/GrGLSL.h" |
| 11 | #include "gl/GrGLTexture.h" |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame^] | 12 | #include "gl/builders/GrGLProgramBuilder.h" |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 13 | |
bsalomon@google.com | dbbc4e2 | 2012-07-25 17:48:39 +0000 | [diff] [blame] | 14 | // For brevity |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 15 | typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 16 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 17 | class GrGLConvolutionEffect : public GrGLFragmentProcessor { |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 18 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame^] | 19 | GrGLConvolutionEffect(const GrProcessor&); |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 20 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 21 | virtual void emitCode(GrGLFPBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 22 | const GrFragmentProcessor&, |
bsalomon@google.com | 47d7a88 | 2012-10-29 12:47:51 +0000 | [diff] [blame] | 23 | const char* outputColor, |
| 24 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 25 | const TransformedCoordsArray&, |
bsalomon@google.com | 47d7a88 | 2012-10-29 12:47:51 +0000 | [diff] [blame] | 26 | const TextureSamplerArray&) SK_OVERRIDE; |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 27 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 28 | virtual void setData(const GrGLProgramDataManager& pdman, const GrProcessor&) SK_OVERRIDE; |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 29 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 30 | static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilder*); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 31 | |
| 32 | private: |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 33 | int width() const { return Gr1DKernelEffect::WidthFromRadius(fRadius); } |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 34 | bool useBounds() const { return fUseBounds; } |
| 35 | Gr1DKernelEffect::Direction direction() const { return fDirection; } |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 36 | |
bsalomon@google.com | b4a55b7 | 2012-11-02 20:45:37 +0000 | [diff] [blame] | 37 | int fRadius; |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 38 | bool fUseBounds; |
| 39 | Gr1DKernelEffect::Direction fDirection; |
bsalomon@google.com | b4a55b7 | 2012-11-02 20:45:37 +0000 | [diff] [blame] | 40 | UniformHandle fKernelUni; |
| 41 | UniformHandle fImageIncrementUni; |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 42 | UniformHandle fBoundsUni; |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 43 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 44 | typedef GrGLFragmentProcessor INHERITED; |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 45 | }; |
| 46 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame^] | 47 | GrGLConvolutionEffect::GrGLConvolutionEffect(const GrProcessor& processor) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 48 | const GrConvolutionEffect& c = processor.cast<GrConvolutionEffect>(); |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 49 | fRadius = c.radius(); |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 50 | fUseBounds = c.useBounds(); |
| 51 | fDirection = c.direction(); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 52 | } |
| 53 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 54 | void GrGLConvolutionEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 55 | const GrFragmentProcessor&, |
bsalomon@google.com | 47d7a88 | 2012-10-29 12:47:51 +0000 | [diff] [blame] | 56 | const char* outputColor, |
| 57 | const char* inputColor, |
bsalomon@google.com | 77af680 | 2013-10-02 13:04:56 +0000 | [diff] [blame] | 58 | const TransformedCoordsArray& coords, |
bsalomon@google.com | 47d7a88 | 2012-10-29 12:47:51 +0000 | [diff] [blame] | 59 | const TextureSamplerArray& samplers) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 60 | fImageIncrementUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 61 | kVec2f_GrSLType, "ImageIncrement"); |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 62 | if (this->useBounds()) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 63 | fBoundsUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 64 | kVec2f_GrSLType, "Bounds"); |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 65 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 66 | fKernelUni = builder->addUniformArray(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon@google.com | 777c3aa | 2012-07-25 20:58:20 +0000 | [diff] [blame] | 67 | kFloat_GrSLType, "Kernel", this->width()); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 68 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 69 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 70 | SkString coords2D = fsBuilder->ensureFSCoords2D(coords, 0); |
| 71 | |
| 72 | fsBuilder->codeAppendf("\t\t%s = vec4(0, 0, 0, 0);\n", outputColor); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 73 | |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 74 | int width = this->width(); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 75 | const GrGLShaderVar& kernel = builder->getUniformVariable(fKernelUni); |
| 76 | const char* imgInc = builder->getUniformCStr(fImageIncrementUni); |
bsalomon@google.com | 0a7672f | 2012-08-03 18:12:20 +0000 | [diff] [blame] | 77 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 78 | fsBuilder->codeAppendf("\t\tvec2 coord = %s - %d.0 * %s;\n", coords2D.c_str(), fRadius, imgInc); |
bsalomon@google.com | 0a7672f | 2012-08-03 18:12:20 +0000 | [diff] [blame] | 79 | |
tomhudson@google.com | f8a2289 | 2012-06-11 12:42:24 +0000 | [diff] [blame] | 80 | // Manually unroll loop because some drivers don't; yields 20-30% speedup. |
bsalomon@google.com | fc0d23a | 2012-06-15 21:50:15 +0000 | [diff] [blame] | 81 | for (int i = 0; i < width; i++) { |
bsalomon@google.com | f0a104e | 2012-07-10 17:51:07 +0000 | [diff] [blame] | 82 | SkString index; |
| 83 | SkString kernelIndex; |
tomhudson@google.com | f8a2289 | 2012-06-11 12:42:24 +0000 | [diff] [blame] | 84 | index.appendS32(i); |
bsalomon@google.com | 032b221 | 2012-07-16 13:36:18 +0000 | [diff] [blame] | 85 | kernel.appendArrayAccess(index.c_str(), &kernelIndex); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 86 | fsBuilder->codeAppendf("\t\t%s += ", outputColor); |
| 87 | fsBuilder->appendTextureLookup(samplers[0], "coord"); |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 88 | if (this->useBounds()) { |
| 89 | const char* bounds = builder->getUniformCStr(fBoundsUni); |
| 90 | const char* component = this->direction() == Gr1DKernelEffect::kY_Direction ? "y" : "x"; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 91 | fsBuilder->codeAppendf(" * float(coord.%s >= %s.x && coord.%s <= %s.y)", |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 92 | component, bounds, component, bounds); |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 93 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 94 | fsBuilder->codeAppendf(" * %s;\n", kernelIndex.c_str()); |
| 95 | fsBuilder->codeAppendf("\t\tcoord += %s;\n", imgInc); |
tomhudson@google.com | f8a2289 | 2012-06-11 12:42:24 +0000 | [diff] [blame] | 96 | } |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 97 | |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 98 | SkString modulate; |
egdaniel | 089f8de | 2014-10-09 10:34:58 -0700 | [diff] [blame] | 99 | GrGLSLMulVarBy4f(&modulate, outputColor, inputColor); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 100 | fsBuilder->codeAppend(modulate.c_str()); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 101 | } |
| 102 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 103 | void GrGLConvolutionEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 104 | const GrProcessor& processor) { |
| 105 | const GrConvolutionEffect& conv = processor.cast<GrConvolutionEffect>(); |
bsalomon@google.com | 28a15fb | 2012-10-26 17:53:18 +0000 | [diff] [blame] | 106 | GrTexture& texture = *conv.texture(0); |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 107 | // the code we generated was for a specific kernel radius |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 108 | SkASSERT(conv.radius() == fRadius); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 109 | float imageIncrement[2] = { 0 }; |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 110 | float ySign = texture.origin() != kTopLeft_GrSurfaceOrigin ? 1.0f : -1.0f; |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 111 | switch (conv.direction()) { |
| 112 | case Gr1DKernelEffect::kX_Direction: |
tomhudson@google.com | 6a820b6 | 2012-05-24 15:10:14 +0000 | [diff] [blame] | 113 | imageIncrement[0] = 1.0f / texture.width(); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 114 | break; |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 115 | case Gr1DKernelEffect::kY_Direction: |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 116 | imageIncrement[1] = ySign / texture.height(); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 117 | break; |
| 118 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 119 | SkFAIL("Unknown filter direction."); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 120 | } |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 121 | pdman.set2fv(fImageIncrementUni, 1, imageIncrement); |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 122 | if (conv.useBounds()) { |
| 123 | const float* bounds = conv.bounds(); |
| 124 | if (Gr1DKernelEffect::kY_Direction == conv.direction() && |
| 125 | texture.origin() != kTopLeft_GrSurfaceOrigin) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 126 | pdman.set2f(fBoundsUni, 1.0f - bounds[1], 1.0f - bounds[0]); |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 127 | } else { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 128 | pdman.set2f(fBoundsUni, bounds[0], bounds[1]); |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 129 | } |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 130 | } |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 131 | pdman.set1fv(fKernelUni, this->width(), conv.kernel()); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 132 | } |
| 133 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 134 | void GrGLConvolutionEffect::GenKey(const GrProcessor& processor, const GrGLCaps&, |
| 135 | GrProcessorKeyBuilder* b) { |
| 136 | const GrConvolutionEffect& conv = processor.cast<GrConvolutionEffect>(); |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 137 | uint32_t key = conv.radius(); |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 138 | key <<= 2; |
| 139 | if (conv.useBounds()) { |
| 140 | key |= 0x2; |
| 141 | key |= GrConvolutionEffect::kY_Direction == conv.direction() ? 0x1 : 0x0; |
| 142 | } |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 143 | b->add32(key); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 144 | } |
| 145 | |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 146 | /////////////////////////////////////////////////////////////////////////////// |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 147 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 148 | GrConvolutionEffect::GrConvolutionEffect(GrTexture* texture, |
| 149 | Direction direction, |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 150 | int radius, |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 151 | const float* kernel, |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 152 | bool useBounds, |
| 153 | float bounds[2]) |
| 154 | : Gr1DKernelEffect(texture, direction, radius), fUseBounds(useBounds) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame^] | 155 | this->initClassID<GrConvolutionEffect>(); |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 156 | SkASSERT(radius <= kMaxKernelRadius); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 157 | SkASSERT(kernel); |
bsalomon@google.com | b505a12 | 2012-05-31 18:40:36 +0000 | [diff] [blame] | 158 | int width = this->width(); |
bsalomon@google.com | b4a55b7 | 2012-11-02 20:45:37 +0000 | [diff] [blame] | 159 | for (int i = 0; i < width; i++) { |
| 160 | fKernel[i] = kernel[i]; |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 161 | } |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 162 | memcpy(fBounds, bounds, sizeof(fBounds)); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 163 | } |
| 164 | |
tomhudson@google.com | fde2c0a | 2012-07-16 12:23:32 +0000 | [diff] [blame] | 165 | GrConvolutionEffect::GrConvolutionEffect(GrTexture* texture, |
| 166 | Direction direction, |
| 167 | int radius, |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 168 | float gaussianSigma, |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 169 | bool useBounds, |
| 170 | float bounds[2]) |
| 171 | : Gr1DKernelEffect(texture, direction, radius), fUseBounds(useBounds) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame^] | 172 | this->initClassID<GrConvolutionEffect>(); |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 173 | SkASSERT(radius <= kMaxKernelRadius); |
tomhudson@google.com | fde2c0a | 2012-07-16 12:23:32 +0000 | [diff] [blame] | 174 | int width = this->width(); |
| 175 | |
| 176 | float sum = 0.0f; |
| 177 | float denom = 1.0f / (2.0f * gaussianSigma * gaussianSigma); |
| 178 | for (int i = 0; i < width; ++i) { |
| 179 | float x = static_cast<float>(i - this->radius()); |
| 180 | // Note that the constant term (1/(sqrt(2*pi*sigma^2)) of the Gaussian |
| 181 | // is dropped here, since we renormalize the kernel below. |
| 182 | fKernel[i] = sk_float_exp(- x * x * denom); |
| 183 | sum += fKernel[i]; |
| 184 | } |
| 185 | // Normalize the kernel |
| 186 | float scale = 1.0f / sum; |
| 187 | for (int i = 0; i < width; ++i) { |
| 188 | fKernel[i] *= scale; |
| 189 | } |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 190 | memcpy(fBounds, bounds, sizeof(fBounds)); |
tomhudson@google.com | fde2c0a | 2012-07-16 12:23:32 +0000 | [diff] [blame] | 191 | } |
| 192 | |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 193 | GrConvolutionEffect::~GrConvolutionEffect() { |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 194 | } |
| 195 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame^] | 196 | void GrConvolutionEffect::getGLProcessorKey(const GrGLCaps& caps, |
| 197 | GrProcessorKeyBuilder* b) const { |
| 198 | GrGLConvolutionEffect::GenKey(*this, caps, b); |
| 199 | } |
| 200 | |
| 201 | GrGLFragmentProcessor* GrConvolutionEffect::createGLInstance() const { |
| 202 | return SkNEW_ARGS(GrGLConvolutionEffect, (*this)); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 203 | } |
| 204 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 205 | bool GrConvolutionEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 206 | const GrConvolutionEffect& s = sBase.cast<GrConvolutionEffect>(); |
bsalomon | 420d7e9 | 2014-10-16 09:18:09 -0700 | [diff] [blame] | 207 | return (this->radius() == s.radius() && |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 208 | this->direction() == s.direction() && |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 209 | this->useBounds() == s.useBounds() && |
| 210 | 0 == memcmp(fBounds, s.fBounds, sizeof(fBounds)) && |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 211 | 0 == memcmp(fKernel, s.fKernel, this->width() * sizeof(float))); |
tomhudson@google.com | d8f856c | 2012-05-10 12:13:36 +0000 | [diff] [blame] | 212 | } |
bsalomon@google.com | 0a7672f | 2012-08-03 18:12:20 +0000 | [diff] [blame] | 213 | |
| 214 | /////////////////////////////////////////////////////////////////////////////// |
| 215 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 216 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrConvolutionEffect); |
bsalomon@google.com | 0a7672f | 2012-08-03 18:12:20 +0000 | [diff] [blame] | 217 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 218 | GrFragmentProcessor* GrConvolutionEffect::TestCreate(SkRandom* random, |
| 219 | GrContext*, |
| 220 | const GrDrawTargetCaps&, |
| 221 | GrTexture* textures[]) { |
| 222 | int texIdx = random->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx : |
| 223 | GrProcessorUnitTest::kAlphaTextureIdx; |
bsalomon@google.com | 0a7672f | 2012-08-03 18:12:20 +0000 | [diff] [blame] | 224 | Direction dir = random->nextBool() ? kX_Direction : kY_Direction; |
| 225 | int radius = random->nextRangeU(1, kMaxKernelRadius); |
bungeman@google.com | 4348663 | 2013-08-20 15:20:34 +0000 | [diff] [blame] | 226 | float kernel[kMaxKernelWidth]; |
| 227 | for (size_t i = 0; i < SK_ARRAY_COUNT(kernel); ++i) { |
bsalomon@google.com | 0a7672f | 2012-08-03 18:12:20 +0000 | [diff] [blame] | 228 | kernel[i] = random->nextSScalar1(); |
| 229 | } |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 230 | float bounds[2]; |
bungeman@google.com | 4348663 | 2013-08-20 15:20:34 +0000 | [diff] [blame] | 231 | for (size_t i = 0; i < SK_ARRAY_COUNT(bounds); ++i) { |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 232 | bounds[i] = random->nextF(); |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 233 | } |
bsalomon@google.com | 0a7672f | 2012-08-03 18:12:20 +0000 | [diff] [blame] | 234 | |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 235 | bool useBounds = random->nextBool(); |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 236 | return GrConvolutionEffect::Create(textures[texIdx], |
| 237 | dir, |
| 238 | radius, |
| 239 | kernel, |
senorblanco@chromium.org | e8232bc | 2013-07-29 18:45:44 +0000 | [diff] [blame] | 240 | useBounds, |
| 241 | bounds); |
bsalomon@google.com | 0a7672f | 2012-08-03 18:12:20 +0000 | [diff] [blame] | 242 | } |