commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Copyright 2014 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 8 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 9 | #include "SkTwoPointConicalGradient_gpu.h" |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 10 | |
| 11 | #include "SkTwoPointConicalGradient.h" |
| 12 | |
commit-bot@chromium.org | ef93d29 | 2014-04-10 15:37:52 +0000 | [diff] [blame] | 13 | #if SK_SUPPORT_GPU |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 14 | #include "gl/builders/GrGLProgramBuilder.h" |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 15 | // For brevity |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 16 | typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 17 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 18 | static const SkScalar kErrorTol = 0.00001f; |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 19 | static const SkScalar kEdgeErrorTol = 5.f * kErrorTol; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 20 | |
| 21 | /** |
| 22 | * We have three general cases for 2pt conical gradients. First we always assume that |
| 23 | * the start radius <= end radius. Our first case (kInside_) is when the start circle |
| 24 | * is completely enclosed by the end circle. The second case (kOutside_) is the case |
| 25 | * when the start circle is either completely outside the end circle or the circles |
| 26 | * overlap. The final case (kEdge_) is when the start circle is inside the end one, |
| 27 | * but the two are just barely touching at 1 point along their edges. |
| 28 | */ |
| 29 | enum ConicalType { |
| 30 | kInside_ConicalType, |
| 31 | kOutside_ConicalType, |
| 32 | kEdge_ConicalType, |
| 33 | }; |
| 34 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 35 | ////////////////////////////////////////////////////////////////////////////// |
| 36 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 37 | static void set_matrix_edge_conical(const SkTwoPointConicalGradient& shader, |
| 38 | SkMatrix* invLMatrix) { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 39 | // Inverse of the current local matrix is passed in then, |
| 40 | // translate to center1, rotate so center2 is on x axis. |
| 41 | const SkPoint& center1 = shader.getStartCenter(); |
| 42 | const SkPoint& center2 = shader.getEndCenter(); |
| 43 | |
| 44 | invLMatrix->postTranslate(-center1.fX, -center1.fY); |
| 45 | |
| 46 | SkPoint diff = center2 - center1; |
| 47 | SkScalar diffLen = diff.length(); |
| 48 | if (0 != diffLen) { |
| 49 | SkScalar invDiffLen = SkScalarInvert(diffLen); |
| 50 | SkMatrix rot; |
| 51 | rot.setSinCos(-SkScalarMul(invDiffLen, diff.fY), |
| 52 | SkScalarMul(invDiffLen, diff.fX)); |
| 53 | invLMatrix->postConcat(rot); |
| 54 | } |
| 55 | } |
| 56 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 57 | class Edge2PtConicalEffect : public GrGradientEffect { |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 58 | public: |
| 59 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 60 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 61 | const SkTwoPointConicalGradient& shader, |
| 62 | const SkMatrix& matrix, |
| 63 | SkShader::TileMode tm) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 64 | return SkNEW_ARGS(Edge2PtConicalEffect, (ctx, shader, matrix, tm)); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 65 | } |
| 66 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 67 | virtual ~Edge2PtConicalEffect() {} |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 68 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 69 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 70 | return "Two-Point Conical Gradient Edge Touching"; |
| 71 | } |
| 72 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 73 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 74 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 75 | GrGLFragmentProcessor* createGLInstance() const override; |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 76 | |
| 77 | // The radial gradient parameters can collapse to a linear (instead of quadratic) equation. |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 78 | SkScalar center() const { return fCenterX1; } |
| 79 | SkScalar diffRadius() const { return fDiffRadius; } |
| 80 | SkScalar radius() const { return fRadius0; } |
| 81 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 82 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 83 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 84 | const Edge2PtConicalEffect& s = sBase.cast<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 85 | return (INHERITED::onIsEqual(sBase) && |
| 86 | this->fCenterX1 == s.fCenterX1 && |
| 87 | this->fRadius0 == s.fRadius0 && |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 88 | this->fDiffRadius == s.fDiffRadius); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 89 | } |
| 90 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 91 | Edge2PtConicalEffect(GrContext* ctx, |
| 92 | const SkTwoPointConicalGradient& shader, |
| 93 | const SkMatrix& matrix, |
| 94 | SkShader::TileMode tm) |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 95 | : INHERITED(ctx, shader, matrix, tm), |
| 96 | fCenterX1(shader.getCenterX1()), |
| 97 | fRadius0(shader.getStartRadius()), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 98 | fDiffRadius(shader.getDiffRadius()){ |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 99 | this->initClassID<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 100 | // We should only be calling this shader if we are degenerate case with touching circles |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 101 | // When deciding if we are in edge case, we scaled by the end radius for cases when the |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 102 | // start radius was close to zero, otherwise we scaled by the start radius. In addition |
| 103 | // Our test for the edge case in set_matrix_circle_conical has a higher tolerance so we |
| 104 | // need the sqrt value below |
| 105 | SkASSERT(SkScalarAbs(SkScalarAbs(fDiffRadius) - fCenterX1) < |
| 106 | (fRadius0 < kErrorTol ? shader.getEndRadius() * kEdgeErrorTol : |
| 107 | fRadius0 * sqrt(kEdgeErrorTol))); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 108 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 109 | // We pass the linear part of the quadratic as a varying. |
| 110 | // float b = -2.0 * (fCenterX1 * x + fRadius0 * fDiffRadius * z) |
| 111 | fBTransform = this->getCoordTransform(); |
| 112 | SkMatrix& bMatrix = *fBTransform.accessMatrix(); |
| 113 | SkScalar r0dr = SkScalarMul(fRadius0, fDiffRadius); |
| 114 | bMatrix[SkMatrix::kMScaleX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMScaleX]) + |
| 115 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp0])); |
| 116 | bMatrix[SkMatrix::kMSkewX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMSkewX]) + |
| 117 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp1])); |
| 118 | bMatrix[SkMatrix::kMTransX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMTransX]) + |
| 119 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp2])); |
| 120 | this->addCoordTransform(&fBTransform); |
| 121 | } |
| 122 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 123 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 124 | |
| 125 | // @{ |
| 126 | // Cache of values - these can change arbitrarily, EXCEPT |
| 127 | // we shouldn't change between degenerate and non-degenerate?! |
| 128 | |
| 129 | GrCoordTransform fBTransform; |
| 130 | SkScalar fCenterX1; |
| 131 | SkScalar fRadius0; |
| 132 | SkScalar fDiffRadius; |
| 133 | |
| 134 | // @} |
| 135 | |
| 136 | typedef GrGradientEffect INHERITED; |
| 137 | }; |
| 138 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 139 | class GLEdge2PtConicalEffect : public GrGLGradientEffect { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 140 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 141 | GLEdge2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 142 | virtual ~GLEdge2PtConicalEffect() { } |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 143 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 144 | virtual void emitCode(GrGLFPBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 145 | const GrFragmentProcessor&, |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 146 | const char* outputColor, |
| 147 | const char* inputColor, |
| 148 | const TransformedCoordsArray&, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 149 | const TextureSamplerArray&) override; |
| 150 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 151 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 152 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 153 | |
| 154 | protected: |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 155 | UniformHandle fParamUni; |
| 156 | |
| 157 | const char* fVSVaryingName; |
| 158 | const char* fFSVaryingName; |
| 159 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 160 | // @{ |
| 161 | /// Values last uploaded as uniforms |
| 162 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 163 | SkScalar fCachedRadius; |
| 164 | SkScalar fCachedDiffRadius; |
| 165 | |
| 166 | // @} |
| 167 | |
| 168 | private: |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 169 | typedef GrGLGradientEffect INHERITED; |
| 170 | |
| 171 | }; |
| 172 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 173 | void Edge2PtConicalEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 174 | GrProcessorKeyBuilder* b) const { |
| 175 | GLEdge2PtConicalEffect::GenKey(*this, caps, b); |
| 176 | } |
| 177 | |
| 178 | GrGLFragmentProcessor* Edge2PtConicalEffect::createGLInstance() const { |
| 179 | return SkNEW_ARGS(GLEdge2PtConicalEffect, (*this)); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 180 | } |
skia.committer@gmail.com | 221b911 | 2014-04-04 03:04:32 +0000 | [diff] [blame] | 181 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 182 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(Edge2PtConicalEffect); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 183 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 184 | /* |
| 185 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 186 | */ |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 187 | GrFragmentProcessor* Edge2PtConicalEffect::TestCreate(SkRandom* random, |
| 188 | GrContext* context, |
| 189 | const GrDrawTargetCaps&, |
| 190 | GrTexture**) { |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 191 | SkPoint center1 = {random->nextUScalar1(), random->nextUScalar1()}; |
| 192 | SkScalar radius1 = random->nextUScalar1(); |
| 193 | SkPoint center2; |
| 194 | SkScalar radius2; |
| 195 | do { |
| 196 | center2.set(random->nextUScalar1(), random->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 197 | // If the circles are identical the factory will give us an empty shader. |
| 198 | // This will happen if we pick identical centers |
| 199 | } while (center1 == center2); |
| 200 | |
| 201 | // Below makes sure that circle one is contained within circle two |
| 202 | // and both circles are touching on an edge |
| 203 | SkPoint diff = center2 - center1; |
| 204 | SkScalar diffLen = diff.length(); |
| 205 | radius2 = radius1 + diffLen; |
| 206 | |
| 207 | SkColor colors[kMaxRandomGradientColors]; |
| 208 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 209 | SkScalar* stops = stopsArray; |
| 210 | SkShader::TileMode tm; |
| 211 | int colorCount = RandomGradientParams(random, colors, &stops, &tm); |
| 212 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 213 | center2, radius2, |
| 214 | colors, stops, colorCount, |
| 215 | tm)); |
| 216 | SkPaint paint; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 217 | GrFragmentProcessor* fp; |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 218 | GrColor paintColor; |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 219 | SkAssertResult(shader->asFragmentProcessor(context, paint, |
joshualitt | 4eaf9ce | 2015-04-28 13:31:18 -0700 | [diff] [blame] | 220 | GrTest::TestMatrix(random), NULL, |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 221 | &paintColor, &fp)); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 222 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 223 | } |
| 224 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 225 | GLEdge2PtConicalEffect::GLEdge2PtConicalEffect(const GrProcessor&) |
| 226 | : fVSVaryingName(NULL) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 227 | , fFSVaryingName(NULL) |
| 228 | , fCachedRadius(-SK_ScalarMax) |
| 229 | , fCachedDiffRadius(-SK_ScalarMax) {} |
| 230 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 231 | void GLEdge2PtConicalEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 232 | const GrFragmentProcessor& fp, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 233 | const char* outputColor, |
| 234 | const char* inputColor, |
| 235 | const TransformedCoordsArray& coords, |
| 236 | const TextureSamplerArray& samplers) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 237 | const Edge2PtConicalEffect& ge = fp.cast<Edge2PtConicalEffect>(); |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 238 | this->emitUniforms(builder, ge); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 239 | fParamUni = builder->addUniformArray(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 240 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 241 | "Conical2FSParams", 3); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 242 | |
| 243 | SkString cName("c"); |
| 244 | SkString tName("t"); |
| 245 | SkString p0; // start radius |
| 246 | SkString p1; // start radius squared |
| 247 | SkString p2; // difference in radii (r1 - r0) |
| 248 | |
| 249 | builder->getUniformVariable(fParamUni).appendArrayAccess(0, &p0); |
| 250 | builder->getUniformVariable(fParamUni).appendArrayAccess(1, &p1); |
| 251 | builder->getUniformVariable(fParamUni).appendArrayAccess(2, &p2); |
| 252 | |
| 253 | // We interpolate the linear component in coords[1]. |
joshualitt | 23e280d | 2014-09-18 12:26:38 -0700 | [diff] [blame] | 254 | SkASSERT(coords[0].getType() == coords[1].getType()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 255 | const char* coords2D; |
| 256 | SkString bVar; |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 257 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 23e280d | 2014-09-18 12:26:38 -0700 | [diff] [blame] | 258 | if (kVec3f_GrSLType == coords[0].getType()) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 259 | fsBuilder->codeAppendf("\tvec3 interpolants = vec3(%s.xy / %s.z, %s.x / %s.z);\n", |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 260 | coords[0].c_str(), coords[0].c_str(), coords[1].c_str(), |
| 261 | coords[1].c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 262 | coords2D = "interpolants.xy"; |
| 263 | bVar = "interpolants.z"; |
| 264 | } else { |
| 265 | coords2D = coords[0].c_str(); |
| 266 | bVar.printf("%s.x", coords[1].c_str()); |
| 267 | } |
| 268 | |
| 269 | // output will default to transparent black (we simply won't write anything |
| 270 | // else to it if invalid, instead of discarding or returning prematurely) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 271 | fsBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", outputColor); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 272 | |
| 273 | // c = (x^2)+(y^2) - params[1] |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 274 | fsBuilder->codeAppendf("\tfloat %s = dot(%s, %s) - %s;\n", |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 275 | cName.c_str(), coords2D, coords2D, p1.c_str()); |
| 276 | |
| 277 | // linear case: t = -c/b |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 278 | fsBuilder->codeAppendf("\tfloat %s = -(%s / %s);\n", tName.c_str(), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 279 | cName.c_str(), bVar.c_str()); |
| 280 | |
| 281 | // if r(t) > 0, then t will be the x coordinate |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 282 | fsBuilder->codeAppendf("\tif (%s * %s + %s > 0.0) {\n", tName.c_str(), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 283 | p2.c_str(), p0.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 284 | fsBuilder->codeAppend("\t"); |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 285 | this->emitColor(builder, ge, tName.c_str(), outputColor, inputColor, samplers); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 286 | fsBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 287 | } |
| 288 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 289 | void GLEdge2PtConicalEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 290 | const GrProcessor& processor) { |
| 291 | INHERITED::setData(pdman, processor); |
| 292 | const Edge2PtConicalEffect& data = processor.cast<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 293 | SkScalar radius0 = data.radius(); |
| 294 | SkScalar diffRadius = data.diffRadius(); |
| 295 | |
| 296 | if (fCachedRadius != radius0 || |
| 297 | fCachedDiffRadius != diffRadius) { |
| 298 | |
| 299 | float values[3] = { |
| 300 | SkScalarToFloat(radius0), |
| 301 | SkScalarToFloat(SkScalarMul(radius0, radius0)), |
| 302 | SkScalarToFloat(diffRadius) |
| 303 | }; |
| 304 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 305 | pdman.set1fv(fParamUni, 3, values); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 306 | fCachedRadius = radius0; |
| 307 | fCachedDiffRadius = diffRadius; |
| 308 | } |
| 309 | } |
| 310 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 311 | void GLEdge2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 312 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 313 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | ////////////////////////////////////////////////////////////////////////////// |
| 317 | // Focal Conical Gradients |
| 318 | ////////////////////////////////////////////////////////////////////////////// |
| 319 | |
| 320 | static ConicalType set_matrix_focal_conical(const SkTwoPointConicalGradient& shader, |
| 321 | SkMatrix* invLMatrix, SkScalar* focalX) { |
| 322 | // Inverse of the current local matrix is passed in then, |
| 323 | // translate, scale, and rotate such that endCircle is unit circle on x-axis, |
| 324 | // and focal point is at the origin. |
| 325 | ConicalType conicalType; |
| 326 | const SkPoint& focal = shader.getStartCenter(); |
| 327 | const SkPoint& centerEnd = shader.getEndCenter(); |
| 328 | SkScalar radius = shader.getEndRadius(); |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 329 | SkScalar invRadius = 1.f / radius; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 330 | |
| 331 | SkMatrix matrix; |
| 332 | |
| 333 | matrix.setTranslate(-centerEnd.fX, -centerEnd.fY); |
| 334 | matrix.postScale(invRadius, invRadius); |
| 335 | |
| 336 | SkPoint focalTrans; |
| 337 | matrix.mapPoints(&focalTrans, &focal, 1); |
| 338 | *focalX = focalTrans.length(); |
| 339 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 340 | if (0.f != *focalX) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 341 | SkScalar invFocalX = SkScalarInvert(*focalX); |
| 342 | SkMatrix rot; |
| 343 | rot.setSinCos(-SkScalarMul(invFocalX, focalTrans.fY), |
| 344 | SkScalarMul(invFocalX, focalTrans.fX)); |
| 345 | matrix.postConcat(rot); |
| 346 | } |
| 347 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 348 | matrix.postTranslate(-(*focalX), 0.f); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 349 | |
| 350 | // If the focal point is touching the edge of the circle it will |
| 351 | // cause a degenerate case that must be handled separately |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 352 | // kEdgeErrorTol = 5 * kErrorTol was picked after manual testing the |
| 353 | // stability trade off versus the linear approx used in the Edge Shader |
| 354 | if (SkScalarAbs(1.f - (*focalX)) < kEdgeErrorTol) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 355 | return kEdge_ConicalType; |
| 356 | } |
| 357 | |
| 358 | // Scale factor 1 / (1 - focalX * focalX) |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 359 | SkScalar oneMinusF2 = 1.f - SkScalarMul(*focalX, *focalX); |
reed | 2629697 | 2015-05-12 10:28:06 -0700 | [diff] [blame^] | 360 | SkScalar s = SkScalarDiv(1.f, oneMinusF2); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 361 | |
| 362 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 363 | if (s >= 0.f) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 364 | conicalType = kInside_ConicalType; |
| 365 | matrix.postScale(s, s * SkScalarSqrt(oneMinusF2)); |
| 366 | } else { |
| 367 | conicalType = kOutside_ConicalType; |
| 368 | matrix.postScale(s, s); |
| 369 | } |
| 370 | |
| 371 | invLMatrix->postConcat(matrix); |
| 372 | |
| 373 | return conicalType; |
| 374 | } |
| 375 | |
| 376 | ////////////////////////////////////////////////////////////////////////////// |
| 377 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 378 | class FocalOutside2PtConicalEffect : public GrGradientEffect { |
| 379 | public: |
| 380 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 381 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 382 | const SkTwoPointConicalGradient& shader, |
| 383 | const SkMatrix& matrix, |
| 384 | SkShader::TileMode tm, |
| 385 | SkScalar focalX) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 386 | return SkNEW_ARGS(FocalOutside2PtConicalEffect, (ctx, shader, matrix, tm, focalX)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | virtual ~FocalOutside2PtConicalEffect() { } |
| 390 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 391 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 392 | return "Two-Point Conical Gradient Focal Outside"; |
| 393 | } |
| 394 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 395 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 396 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 397 | GrGLFragmentProcessor* createGLInstance() const override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 398 | |
| 399 | bool isFlipped() const { return fIsFlipped; } |
| 400 | SkScalar focal() const { return fFocalX; } |
| 401 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 402 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 403 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 404 | const FocalOutside2PtConicalEffect& s = sBase.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 405 | return (INHERITED::onIsEqual(sBase) && |
| 406 | this->fFocalX == s.fFocalX && |
| 407 | this->fIsFlipped == s.fIsFlipped); |
| 408 | } |
| 409 | |
| 410 | FocalOutside2PtConicalEffect(GrContext* ctx, |
| 411 | const SkTwoPointConicalGradient& shader, |
| 412 | const SkMatrix& matrix, |
| 413 | SkShader::TileMode tm, |
| 414 | SkScalar focalX) |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 415 | : INHERITED(ctx, shader, matrix, tm), fFocalX(focalX), fIsFlipped(shader.isFlippedGrad()) { |
| 416 | this->initClassID<FocalOutside2PtConicalEffect>(); |
| 417 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 418 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 419 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 420 | |
| 421 | SkScalar fFocalX; |
| 422 | bool fIsFlipped; |
| 423 | |
| 424 | typedef GrGradientEffect INHERITED; |
| 425 | }; |
| 426 | |
| 427 | class GLFocalOutside2PtConicalEffect : public GrGLGradientEffect { |
| 428 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 429 | GLFocalOutside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 430 | virtual ~GLFocalOutside2PtConicalEffect() { } |
| 431 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 432 | virtual void emitCode(GrGLFPBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 433 | const GrFragmentProcessor&, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 434 | const char* outputColor, |
| 435 | const char* inputColor, |
| 436 | const TransformedCoordsArray&, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 437 | const TextureSamplerArray&) override; |
| 438 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 439 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 440 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 441 | |
| 442 | protected: |
| 443 | UniformHandle fParamUni; |
| 444 | |
| 445 | const char* fVSVaryingName; |
| 446 | const char* fFSVaryingName; |
| 447 | |
| 448 | bool fIsFlipped; |
| 449 | |
| 450 | // @{ |
| 451 | /// Values last uploaded as uniforms |
| 452 | |
| 453 | SkScalar fCachedFocal; |
| 454 | |
| 455 | // @} |
| 456 | |
| 457 | private: |
| 458 | typedef GrGLGradientEffect INHERITED; |
| 459 | |
| 460 | }; |
| 461 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 462 | void FocalOutside2PtConicalEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 463 | GrProcessorKeyBuilder* b) const { |
| 464 | GLFocalOutside2PtConicalEffect::GenKey(*this, caps, b); |
| 465 | } |
| 466 | |
| 467 | GrGLFragmentProcessor* FocalOutside2PtConicalEffect::createGLInstance() const { |
| 468 | return SkNEW_ARGS(GLFocalOutside2PtConicalEffect, (*this)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 469 | } |
| 470 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 471 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(FocalOutside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 472 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 473 | /* |
| 474 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 475 | */ |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 476 | GrFragmentProcessor* FocalOutside2PtConicalEffect::TestCreate(SkRandom* random, |
| 477 | GrContext* context, |
| 478 | const GrDrawTargetCaps&, |
| 479 | GrTexture**) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 480 | SkPoint center1 = {random->nextUScalar1(), random->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 481 | SkScalar radius1 = 0.f; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 482 | SkPoint center2; |
| 483 | SkScalar radius2; |
| 484 | do { |
| 485 | center2.set(random->nextUScalar1(), random->nextUScalar1()); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 486 | // Need to make sure the centers are not the same or else focal point will be inside |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 487 | } while (center1 == center2); |
| 488 | SkPoint diff = center2 - center1; |
| 489 | SkScalar diffLen = diff.length(); |
| 490 | // Below makes sure that the focal point is not contained within circle two |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 491 | radius2 = random->nextRangeF(0.f, diffLen); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 492 | |
| 493 | SkColor colors[kMaxRandomGradientColors]; |
| 494 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 495 | SkScalar* stops = stopsArray; |
| 496 | SkShader::TileMode tm; |
| 497 | int colorCount = RandomGradientParams(random, colors, &stops, &tm); |
| 498 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 499 | center2, radius2, |
| 500 | colors, stops, colorCount, |
| 501 | tm)); |
| 502 | SkPaint paint; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 503 | GrFragmentProcessor* effect; |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 504 | GrColor paintColor; |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 505 | |
| 506 | SkAssertResult(shader->asFragmentProcessor(context, paint, |
joshualitt | 4eaf9ce | 2015-04-28 13:31:18 -0700 | [diff] [blame] | 507 | GrTest::TestMatrix(random), NULL, |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 508 | &paintColor, &effect)); |
dandov | 9de5b51 | 2014-06-10 14:38:28 -0700 | [diff] [blame] | 509 | return effect; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 510 | } |
| 511 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 512 | GLFocalOutside2PtConicalEffect::GLFocalOutside2PtConicalEffect(const GrProcessor& processor) |
| 513 | : fVSVaryingName(NULL) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 514 | , fFSVaryingName(NULL) |
| 515 | , fCachedFocal(SK_ScalarMax) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 516 | const FocalOutside2PtConicalEffect& data = processor.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 517 | fIsFlipped = data.isFlipped(); |
| 518 | } |
| 519 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 520 | void GLFocalOutside2PtConicalEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 521 | const GrFragmentProcessor& fp, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 522 | const char* outputColor, |
| 523 | const char* inputColor, |
| 524 | const TransformedCoordsArray& coords, |
| 525 | const TextureSamplerArray& samplers) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 526 | const FocalOutside2PtConicalEffect& ge = fp.cast<FocalOutside2PtConicalEffect>(); |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 527 | this->emitUniforms(builder, ge); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 528 | fParamUni = builder->addUniformArray(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 529 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 530 | "Conical2FSParams", 2); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 531 | SkString tName("t"); |
| 532 | SkString p0; // focalX |
| 533 | SkString p1; // 1 - focalX * focalX |
| 534 | |
| 535 | builder->getUniformVariable(fParamUni).appendArrayAccess(0, &p0); |
| 536 | builder->getUniformVariable(fParamUni).appendArrayAccess(1, &p1); |
| 537 | |
| 538 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 539 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 540 | SkString coords2DString = fsBuilder->ensureFSCoords2D(coords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 541 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 542 | |
| 543 | // t = p.x * focal.x +/- sqrt(p.x^2 + (1 - focal.x^2) * p.y^2) |
| 544 | |
| 545 | // output will default to transparent black (we simply won't write anything |
| 546 | // else to it if invalid, instead of discarding or returning prematurely) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 547 | fsBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", outputColor); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 548 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 549 | fsBuilder->codeAppendf("\tfloat xs = %s.x * %s.x;\n", coords2D, coords2D); |
| 550 | fsBuilder->codeAppendf("\tfloat ys = %s.y * %s.y;\n", coords2D, coords2D); |
| 551 | fsBuilder->codeAppendf("\tfloat d = xs + %s * ys;\n", p1.c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 552 | |
| 553 | // Must check to see if we flipped the circle order (to make sure start radius < end radius) |
| 554 | // If so we must also flip sign on sqrt |
| 555 | if (!fIsFlipped) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 556 | fsBuilder->codeAppendf("\tfloat %s = %s.x * %s + sqrt(d);\n", tName.c_str(), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 557 | coords2D, p0.c_str()); |
| 558 | } else { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 559 | fsBuilder->codeAppendf("\tfloat %s = %s.x * %s - sqrt(d);\n", tName.c_str(), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 560 | coords2D, p0.c_str()); |
| 561 | } |
| 562 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 563 | fsBuilder->codeAppendf("\tif (%s >= 0.0 && d >= 0.0) {\n", tName.c_str()); |
| 564 | fsBuilder->codeAppend("\t\t"); |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 565 | this->emitColor(builder, ge, tName.c_str(), outputColor, inputColor, samplers); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 566 | fsBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 567 | } |
| 568 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 569 | void GLFocalOutside2PtConicalEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 570 | const GrProcessor& processor) { |
| 571 | INHERITED::setData(pdman, processor); |
| 572 | const FocalOutside2PtConicalEffect& data = processor.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 573 | SkASSERT(data.isFlipped() == fIsFlipped); |
| 574 | SkScalar focal = data.focal(); |
| 575 | |
| 576 | if (fCachedFocal != focal) { |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 577 | SkScalar oneMinus2F = 1.f - SkScalarMul(focal, focal); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 578 | |
| 579 | float values[2] = { |
| 580 | SkScalarToFloat(focal), |
| 581 | SkScalarToFloat(oneMinus2F), |
| 582 | }; |
| 583 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 584 | pdman.set1fv(fParamUni, 2, values); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 585 | fCachedFocal = focal; |
| 586 | } |
| 587 | } |
| 588 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 589 | void GLFocalOutside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 590 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 591 | uint32_t* key = b->add32n(2); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 592 | key[0] = GenBaseGradientKey(processor); |
| 593 | key[1] = processor.cast<FocalOutside2PtConicalEffect>().isFlipped(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 594 | } |
| 595 | |
| 596 | ////////////////////////////////////////////////////////////////////////////// |
| 597 | |
| 598 | class GLFocalInside2PtConicalEffect; |
| 599 | |
| 600 | class FocalInside2PtConicalEffect : public GrGradientEffect { |
| 601 | public: |
| 602 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 603 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 604 | const SkTwoPointConicalGradient& shader, |
| 605 | const SkMatrix& matrix, |
| 606 | SkShader::TileMode tm, |
| 607 | SkScalar focalX) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 608 | return SkNEW_ARGS(FocalInside2PtConicalEffect, (ctx, shader, matrix, tm, focalX)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | virtual ~FocalInside2PtConicalEffect() {} |
| 612 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 613 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 614 | return "Two-Point Conical Gradient Focal Inside"; |
| 615 | } |
| 616 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 617 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 618 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 619 | GrGLFragmentProcessor* createGLInstance() const override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 620 | |
| 621 | SkScalar focal() const { return fFocalX; } |
| 622 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 623 | typedef GLFocalInside2PtConicalEffect GLProcessor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 624 | |
| 625 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 626 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 627 | const FocalInside2PtConicalEffect& s = sBase.cast<FocalInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 628 | return (INHERITED::onIsEqual(sBase) && |
| 629 | this->fFocalX == s.fFocalX); |
| 630 | } |
| 631 | |
| 632 | FocalInside2PtConicalEffect(GrContext* ctx, |
| 633 | const SkTwoPointConicalGradient& shader, |
| 634 | const SkMatrix& matrix, |
| 635 | SkShader::TileMode tm, |
| 636 | SkScalar focalX) |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 637 | : INHERITED(ctx, shader, matrix, tm), fFocalX(focalX) { |
| 638 | this->initClassID<FocalInside2PtConicalEffect>(); |
| 639 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 640 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 641 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 642 | |
| 643 | SkScalar fFocalX; |
| 644 | |
| 645 | typedef GrGradientEffect INHERITED; |
| 646 | }; |
| 647 | |
| 648 | class GLFocalInside2PtConicalEffect : public GrGLGradientEffect { |
| 649 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 650 | GLFocalInside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 651 | virtual ~GLFocalInside2PtConicalEffect() {} |
| 652 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 653 | virtual void emitCode(GrGLFPBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 654 | const GrFragmentProcessor&, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 655 | const char* outputColor, |
| 656 | const char* inputColor, |
| 657 | const TransformedCoordsArray&, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 658 | const TextureSamplerArray&) override; |
| 659 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 660 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 661 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 662 | |
| 663 | protected: |
| 664 | UniformHandle fFocalUni; |
| 665 | |
| 666 | const char* fVSVaryingName; |
| 667 | const char* fFSVaryingName; |
| 668 | |
| 669 | // @{ |
| 670 | /// Values last uploaded as uniforms |
| 671 | |
| 672 | SkScalar fCachedFocal; |
| 673 | |
| 674 | // @} |
| 675 | |
| 676 | private: |
| 677 | typedef GrGLGradientEffect INHERITED; |
| 678 | |
| 679 | }; |
| 680 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 681 | void FocalInside2PtConicalEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 682 | GrProcessorKeyBuilder* b) const { |
| 683 | GLFocalInside2PtConicalEffect::GenKey(*this, caps, b); |
| 684 | } |
| 685 | |
| 686 | GrGLFragmentProcessor* FocalInside2PtConicalEffect::createGLInstance() const { |
| 687 | return SkNEW_ARGS(GLFocalInside2PtConicalEffect, (*this)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 688 | } |
| 689 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 690 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(FocalInside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 691 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 692 | /* |
| 693 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 694 | */ |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 695 | GrFragmentProcessor* FocalInside2PtConicalEffect::TestCreate(SkRandom* random, |
| 696 | GrContext* context, |
| 697 | const GrDrawTargetCaps&, |
| 698 | GrTexture**) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 699 | SkPoint center1 = {random->nextUScalar1(), random->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 700 | SkScalar radius1 = 0.f; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 701 | SkPoint center2; |
| 702 | SkScalar radius2; |
| 703 | do { |
| 704 | center2.set(random->nextUScalar1(), random->nextUScalar1()); |
| 705 | // Below makes sure radius2 is larger enouch such that the focal point |
| 706 | // is inside the end circle |
| 707 | SkScalar increase = random->nextUScalar1(); |
| 708 | SkPoint diff = center2 - center1; |
| 709 | SkScalar diffLen = diff.length(); |
| 710 | radius2 = diffLen + increase; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 711 | // If the circles are identical the factory will give us an empty shader. |
| 712 | } while (radius1 == radius2 && center1 == center2); |
| 713 | |
| 714 | SkColor colors[kMaxRandomGradientColors]; |
| 715 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 716 | SkScalar* stops = stopsArray; |
| 717 | SkShader::TileMode tm; |
| 718 | int colorCount = RandomGradientParams(random, colors, &stops, &tm); |
| 719 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 720 | center2, radius2, |
| 721 | colors, stops, colorCount, |
| 722 | tm)); |
| 723 | SkPaint paint; |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 724 | GrColor paintColor; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 725 | GrFragmentProcessor* fp; |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 726 | SkAssertResult(shader->asFragmentProcessor(context, paint, |
joshualitt | 4eaf9ce | 2015-04-28 13:31:18 -0700 | [diff] [blame] | 727 | GrTest::TestMatrix(random), NULL, |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 728 | &paintColor, &fp)); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 729 | return fp; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 730 | } |
| 731 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 732 | GLFocalInside2PtConicalEffect::GLFocalInside2PtConicalEffect(const GrProcessor&) |
| 733 | : fVSVaryingName(NULL) |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 734 | , fFSVaryingName(NULL) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 735 | , fCachedFocal(SK_ScalarMax) {} |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 736 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 737 | void GLFocalInside2PtConicalEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 738 | const GrFragmentProcessor& fp, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 739 | const char* outputColor, |
| 740 | const char* inputColor, |
| 741 | const TransformedCoordsArray& coords, |
| 742 | const TextureSamplerArray& samplers) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 743 | const FocalInside2PtConicalEffect& ge = fp.cast<FocalInside2PtConicalEffect>(); |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 744 | this->emitUniforms(builder, ge); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 745 | fFocalUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 746 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 747 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 748 | SkString tName("t"); |
| 749 | |
| 750 | // this is the distance along x-axis from the end center to focal point in |
| 751 | // transformed coordinates |
| 752 | GrGLShaderVar focal = builder->getUniformVariable(fFocalUni); |
| 753 | |
| 754 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 755 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 756 | SkString coords2DString = fsBuilder->ensureFSCoords2D(coords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 757 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 758 | |
| 759 | // t = p.x * focalX + length(p) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 760 | fsBuilder->codeAppendf("\tfloat %s = %s.x * %s + length(%s);\n", tName.c_str(), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 761 | coords2D, focal.c_str(), coords2D); |
| 762 | |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 763 | this->emitColor(builder, ge, tName.c_str(), outputColor, inputColor, samplers); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 764 | } |
| 765 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 766 | void GLFocalInside2PtConicalEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 767 | const GrProcessor& processor) { |
| 768 | INHERITED::setData(pdman, processor); |
| 769 | const FocalInside2PtConicalEffect& data = processor.cast<FocalInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 770 | SkScalar focal = data.focal(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 771 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 772 | if (fCachedFocal != focal) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 773 | pdman.set1f(fFocalUni, SkScalarToFloat(focal)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 774 | fCachedFocal = focal; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 775 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 776 | } |
| 777 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 778 | void GLFocalInside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 779 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 780 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 781 | } |
| 782 | |
| 783 | ////////////////////////////////////////////////////////////////////////////// |
| 784 | // Circle Conical Gradients |
| 785 | ////////////////////////////////////////////////////////////////////////////// |
| 786 | |
| 787 | struct CircleConicalInfo { |
| 788 | SkPoint fCenterEnd; |
| 789 | SkScalar fA; |
| 790 | SkScalar fB; |
| 791 | SkScalar fC; |
| 792 | }; |
| 793 | |
| 794 | // Returns focal distance along x-axis in transformed coords |
| 795 | static ConicalType set_matrix_circle_conical(const SkTwoPointConicalGradient& shader, |
| 796 | SkMatrix* invLMatrix, CircleConicalInfo* info) { |
| 797 | // Inverse of the current local matrix is passed in then, |
| 798 | // translate and scale such that start circle is on the origin and has radius 1 |
| 799 | const SkPoint& centerStart = shader.getStartCenter(); |
| 800 | const SkPoint& centerEnd = shader.getEndCenter(); |
| 801 | SkScalar radiusStart = shader.getStartRadius(); |
| 802 | SkScalar radiusEnd = shader.getEndRadius(); |
| 803 | |
| 804 | SkMatrix matrix; |
| 805 | |
| 806 | matrix.setTranslate(-centerStart.fX, -centerStart.fY); |
| 807 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 808 | SkScalar invStartRad = 1.f / radiusStart; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 809 | matrix.postScale(invStartRad, invStartRad); |
| 810 | |
| 811 | radiusEnd /= radiusStart; |
| 812 | |
| 813 | SkPoint centerEndTrans; |
| 814 | matrix.mapPoints(¢erEndTrans, ¢erEnd, 1); |
| 815 | |
| 816 | SkScalar A = centerEndTrans.fX * centerEndTrans.fX + centerEndTrans.fY * centerEndTrans.fY |
| 817 | - radiusEnd * radiusEnd + 2 * radiusEnd - 1; |
| 818 | |
| 819 | // Check to see if start circle is inside end circle with edges touching. |
| 820 | // If touching we return that it is of kEdge_ConicalType, and leave the matrix setting |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 821 | // to the edge shader. kEdgeErrorTol = 5 * kErrorTol was picked after manual testing |
| 822 | // so that C = 1 / A is stable, and the linear approximation used in the Edge shader is |
| 823 | // still accurate. |
| 824 | if (SkScalarAbs(A) < kEdgeErrorTol) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 825 | return kEdge_ConicalType; |
| 826 | } |
| 827 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 828 | SkScalar C = 1.f / A; |
| 829 | SkScalar B = (radiusEnd - 1.f) * C; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 830 | |
| 831 | matrix.postScale(C, C); |
| 832 | |
| 833 | invLMatrix->postConcat(matrix); |
| 834 | |
| 835 | info->fCenterEnd = centerEndTrans; |
| 836 | info->fA = A; |
| 837 | info->fB = B; |
| 838 | info->fC = C; |
| 839 | |
| 840 | // if A ends up being negative, the start circle is contained completely inside the end cirlce |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 841 | if (A < 0.f) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 842 | return kInside_ConicalType; |
| 843 | } |
| 844 | return kOutside_ConicalType; |
| 845 | } |
| 846 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 847 | class CircleInside2PtConicalEffect : public GrGradientEffect { |
| 848 | public: |
| 849 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 850 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 851 | const SkTwoPointConicalGradient& shader, |
| 852 | const SkMatrix& matrix, |
| 853 | SkShader::TileMode tm, |
| 854 | const CircleConicalInfo& info) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 855 | return SkNEW_ARGS(CircleInside2PtConicalEffect, (ctx, shader, matrix, tm, info)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 856 | } |
| 857 | |
| 858 | virtual ~CircleInside2PtConicalEffect() {} |
| 859 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 860 | const char* name() const override { return "Two-Point Conical Gradient Inside"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 861 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 862 | virtual void getGLProcessorKey(const GrGLSLCaps& caps, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 863 | GrProcessorKeyBuilder* b) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 864 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 865 | GrGLFragmentProcessor* createGLInstance() const override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 866 | |
| 867 | SkScalar centerX() const { return fInfo.fCenterEnd.fX; } |
| 868 | SkScalar centerY() const { return fInfo.fCenterEnd.fY; } |
| 869 | SkScalar A() const { return fInfo.fA; } |
| 870 | SkScalar B() const { return fInfo.fB; } |
| 871 | SkScalar C() const { return fInfo.fC; } |
| 872 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 873 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 874 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 875 | const CircleInside2PtConicalEffect& s = sBase.cast<CircleInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 876 | return (INHERITED::onIsEqual(sBase) && |
| 877 | this->fInfo.fCenterEnd == s.fInfo.fCenterEnd && |
| 878 | this->fInfo.fA == s.fInfo.fA && |
| 879 | this->fInfo.fB == s.fInfo.fB && |
| 880 | this->fInfo.fC == s.fInfo.fC); |
| 881 | } |
| 882 | |
| 883 | CircleInside2PtConicalEffect(GrContext* ctx, |
| 884 | const SkTwoPointConicalGradient& shader, |
| 885 | const SkMatrix& matrix, |
| 886 | SkShader::TileMode tm, |
| 887 | const CircleConicalInfo& info) |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 888 | : INHERITED(ctx, shader, matrix, tm), fInfo(info) { |
| 889 | this->initClassID<CircleInside2PtConicalEffect>(); |
| 890 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 891 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 892 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 893 | |
| 894 | const CircleConicalInfo fInfo; |
| 895 | |
| 896 | typedef GrGradientEffect INHERITED; |
| 897 | }; |
| 898 | |
| 899 | class GLCircleInside2PtConicalEffect : public GrGLGradientEffect { |
| 900 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 901 | GLCircleInside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 902 | virtual ~GLCircleInside2PtConicalEffect() {} |
| 903 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 904 | virtual void emitCode(GrGLFPBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 905 | const GrFragmentProcessor&, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 906 | const char* outputColor, |
| 907 | const char* inputColor, |
| 908 | const TransformedCoordsArray&, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 909 | const TextureSamplerArray&) override; |
| 910 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 911 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 912 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 913 | |
| 914 | protected: |
| 915 | UniformHandle fCenterUni; |
| 916 | UniformHandle fParamUni; |
| 917 | |
| 918 | const char* fVSVaryingName; |
| 919 | const char* fFSVaryingName; |
| 920 | |
| 921 | // @{ |
| 922 | /// Values last uploaded as uniforms |
| 923 | |
| 924 | SkScalar fCachedCenterX; |
| 925 | SkScalar fCachedCenterY; |
| 926 | SkScalar fCachedA; |
| 927 | SkScalar fCachedB; |
| 928 | SkScalar fCachedC; |
| 929 | |
| 930 | // @} |
| 931 | |
| 932 | private: |
| 933 | typedef GrGLGradientEffect INHERITED; |
| 934 | |
| 935 | }; |
| 936 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 937 | void CircleInside2PtConicalEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 938 | GrProcessorKeyBuilder* b) const { |
| 939 | GLCircleInside2PtConicalEffect::GenKey(*this, caps, b); |
| 940 | } |
| 941 | |
| 942 | GrGLFragmentProcessor* CircleInside2PtConicalEffect::createGLInstance() const { |
| 943 | return SkNEW_ARGS(GLCircleInside2PtConicalEffect, (*this)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 944 | } |
| 945 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 946 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircleInside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 947 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 948 | /* |
| 949 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 950 | */ |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 951 | GrFragmentProcessor* CircleInside2PtConicalEffect::TestCreate(SkRandom* random, |
| 952 | GrContext* context, |
| 953 | const GrDrawTargetCaps&, |
| 954 | GrTexture**) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 955 | SkPoint center1 = {random->nextUScalar1(), random->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 956 | SkScalar radius1 = random->nextUScalar1() + 0.0001f; // make sure radius1 != 0 |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 957 | SkPoint center2; |
| 958 | SkScalar radius2; |
| 959 | do { |
| 960 | center2.set(random->nextUScalar1(), random->nextUScalar1()); |
| 961 | // Below makes sure that circle one is contained within circle two |
| 962 | SkScalar increase = random->nextUScalar1(); |
| 963 | SkPoint diff = center2 - center1; |
| 964 | SkScalar diffLen = diff.length(); |
| 965 | radius2 = radius1 + diffLen + increase; |
| 966 | // If the circles are identical the factory will give us an empty shader. |
| 967 | } while (radius1 == radius2 && center1 == center2); |
| 968 | |
| 969 | SkColor colors[kMaxRandomGradientColors]; |
| 970 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 971 | SkScalar* stops = stopsArray; |
| 972 | SkShader::TileMode tm; |
| 973 | int colorCount = RandomGradientParams(random, colors, &stops, &tm); |
| 974 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 975 | center2, radius2, |
| 976 | colors, stops, colorCount, |
| 977 | tm)); |
| 978 | SkPaint paint; |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 979 | GrColor paintColor; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 980 | GrFragmentProcessor* processor; |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 981 | SkAssertResult(shader->asFragmentProcessor(context, paint, |
joshualitt | 4eaf9ce | 2015-04-28 13:31:18 -0700 | [diff] [blame] | 982 | GrTest::TestMatrix(random), NULL, |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 983 | &paintColor, &processor)); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 984 | return processor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 985 | } |
| 986 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 987 | GLCircleInside2PtConicalEffect::GLCircleInside2PtConicalEffect(const GrProcessor& processor) |
| 988 | : fVSVaryingName(NULL) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 989 | , fFSVaryingName(NULL) |
| 990 | , fCachedCenterX(SK_ScalarMax) |
| 991 | , fCachedCenterY(SK_ScalarMax) |
| 992 | , fCachedA(SK_ScalarMax) |
| 993 | , fCachedB(SK_ScalarMax) |
| 994 | , fCachedC(SK_ScalarMax) {} |
| 995 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 996 | void GLCircleInside2PtConicalEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 997 | const GrFragmentProcessor& fp, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 998 | const char* outputColor, |
| 999 | const char* inputColor, |
| 1000 | const TransformedCoordsArray& coords, |
| 1001 | const TextureSamplerArray& samplers) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1002 | const CircleInside2PtConicalEffect& ge = fp.cast<CircleInside2PtConicalEffect>(); |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 1003 | this->emitUniforms(builder, ge); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1004 | fCenterUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1005 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 1006 | "Conical2FSCenter"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1007 | fParamUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1008 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 1009 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1010 | SkString tName("t"); |
| 1011 | |
| 1012 | GrGLShaderVar center = builder->getUniformVariable(fCenterUni); |
| 1013 | // params.x = A |
| 1014 | // params.y = B |
| 1015 | // params.z = C |
| 1016 | GrGLShaderVar params = builder->getUniformVariable(fParamUni); |
| 1017 | |
| 1018 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1019 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1020 | SkString coords2DString = fsBuilder->ensureFSCoords2D(coords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 1021 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1022 | |
| 1023 | // p = coords2D |
| 1024 | // e = center end |
| 1025 | // r = radius end |
| 1026 | // A = dot(e, e) - r^2 + 2 * r - 1 |
| 1027 | // B = (r -1) / A |
| 1028 | // C = 1 / A |
| 1029 | // d = dot(e, p) + B |
| 1030 | // t = d +/- sqrt(d^2 - A * dot(p, p) + C) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1031 | fsBuilder->codeAppendf("\tfloat pDotp = dot(%s, %s);\n", coords2D, coords2D); |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1032 | fsBuilder->codeAppendf("\tfloat d = dot(%s, %s) + %s.y;\n", coords2D, center.c_str(), |
| 1033 | params.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1034 | fsBuilder->codeAppendf("\tfloat %s = d + sqrt(d * d - %s.x * pDotp + %s.z);\n", |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1035 | tName.c_str(), params.c_str(), params.c_str()); |
| 1036 | |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 1037 | this->emitColor(builder, ge, tName.c_str(), outputColor, inputColor, samplers); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1038 | } |
| 1039 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1040 | void GLCircleInside2PtConicalEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1041 | const GrProcessor& processor) { |
| 1042 | INHERITED::setData(pdman, processor); |
| 1043 | const CircleInside2PtConicalEffect& data = processor.cast<CircleInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1044 | SkScalar centerX = data.centerX(); |
| 1045 | SkScalar centerY = data.centerY(); |
| 1046 | SkScalar A = data.A(); |
| 1047 | SkScalar B = data.B(); |
| 1048 | SkScalar C = data.C(); |
| 1049 | |
| 1050 | if (fCachedCenterX != centerX || fCachedCenterY != centerY || |
| 1051 | fCachedA != A || fCachedB != B || fCachedC != C) { |
| 1052 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1053 | pdman.set2f(fCenterUni, SkScalarToFloat(centerX), SkScalarToFloat(centerY)); |
| 1054 | pdman.set3f(fParamUni, SkScalarToFloat(A), SkScalarToFloat(B), SkScalarToFloat(C)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1055 | |
| 1056 | fCachedCenterX = centerX; |
| 1057 | fCachedCenterY = centerY; |
| 1058 | fCachedA = A; |
| 1059 | fCachedB = B; |
| 1060 | fCachedC = C; |
| 1061 | } |
| 1062 | } |
| 1063 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1064 | void GLCircleInside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1065 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1066 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1067 | } |
| 1068 | |
| 1069 | ////////////////////////////////////////////////////////////////////////////// |
| 1070 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1071 | class CircleOutside2PtConicalEffect : public GrGradientEffect { |
| 1072 | public: |
| 1073 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1074 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 1075 | const SkTwoPointConicalGradient& shader, |
| 1076 | const SkMatrix& matrix, |
| 1077 | SkShader::TileMode tm, |
| 1078 | const CircleConicalInfo& info) { |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 1079 | return SkNEW_ARGS(CircleOutside2PtConicalEffect, (ctx, shader, matrix, tm, info)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1080 | } |
| 1081 | |
| 1082 | virtual ~CircleOutside2PtConicalEffect() {} |
| 1083 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1084 | const char* name() const override { return "Two-Point Conical Gradient Outside"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1085 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1086 | void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1087 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1088 | GrGLFragmentProcessor* createGLInstance() const override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1089 | |
| 1090 | SkScalar centerX() const { return fInfo.fCenterEnd.fX; } |
| 1091 | SkScalar centerY() const { return fInfo.fCenterEnd.fY; } |
| 1092 | SkScalar A() const { return fInfo.fA; } |
| 1093 | SkScalar B() const { return fInfo.fB; } |
| 1094 | SkScalar C() const { return fInfo.fC; } |
| 1095 | SkScalar tLimit() const { return fTLimit; } |
| 1096 | bool isFlipped() const { return fIsFlipped; } |
| 1097 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1098 | private: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1099 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1100 | const CircleOutside2PtConicalEffect& s = sBase.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1101 | return (INHERITED::onIsEqual(sBase) && |
| 1102 | this->fInfo.fCenterEnd == s.fInfo.fCenterEnd && |
| 1103 | this->fInfo.fA == s.fInfo.fA && |
| 1104 | this->fInfo.fB == s.fInfo.fB && |
| 1105 | this->fInfo.fC == s.fInfo.fC && |
| 1106 | this->fTLimit == s.fTLimit && |
| 1107 | this->fIsFlipped == s.fIsFlipped); |
| 1108 | } |
| 1109 | |
| 1110 | CircleOutside2PtConicalEffect(GrContext* ctx, |
| 1111 | const SkTwoPointConicalGradient& shader, |
| 1112 | const SkMatrix& matrix, |
| 1113 | SkShader::TileMode tm, |
| 1114 | const CircleConicalInfo& info) |
| 1115 | : INHERITED(ctx, shader, matrix, tm), fInfo(info) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1116 | this->initClassID<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1117 | if (shader.getStartRadius() != shader.getEndRadius()) { |
reed | 2629697 | 2015-05-12 10:28:06 -0700 | [diff] [blame^] | 1118 | fTLimit = SkScalarDiv(shader.getStartRadius(), |
| 1119 | (shader.getStartRadius() - shader.getEndRadius())); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1120 | } else { |
| 1121 | fTLimit = SK_ScalarMin; |
| 1122 | } |
| 1123 | |
| 1124 | fIsFlipped = shader.isFlippedGrad(); |
| 1125 | } |
| 1126 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1127 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1128 | |
| 1129 | const CircleConicalInfo fInfo; |
| 1130 | SkScalar fTLimit; |
| 1131 | bool fIsFlipped; |
| 1132 | |
| 1133 | typedef GrGradientEffect INHERITED; |
| 1134 | }; |
| 1135 | |
| 1136 | class GLCircleOutside2PtConicalEffect : public GrGLGradientEffect { |
| 1137 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1138 | GLCircleOutside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1139 | virtual ~GLCircleOutside2PtConicalEffect() {} |
| 1140 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1141 | virtual void emitCode(GrGLFPBuilder*, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1142 | const GrFragmentProcessor&, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1143 | const char* outputColor, |
| 1144 | const char* inputColor, |
| 1145 | const TransformedCoordsArray&, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1146 | const TextureSamplerArray&) override; |
| 1147 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1148 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1149 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1150 | |
| 1151 | protected: |
| 1152 | UniformHandle fCenterUni; |
| 1153 | UniformHandle fParamUni; |
| 1154 | |
| 1155 | const char* fVSVaryingName; |
| 1156 | const char* fFSVaryingName; |
| 1157 | |
| 1158 | bool fIsFlipped; |
| 1159 | |
| 1160 | // @{ |
| 1161 | /// Values last uploaded as uniforms |
| 1162 | |
| 1163 | SkScalar fCachedCenterX; |
| 1164 | SkScalar fCachedCenterY; |
| 1165 | SkScalar fCachedA; |
| 1166 | SkScalar fCachedB; |
| 1167 | SkScalar fCachedC; |
| 1168 | SkScalar fCachedTLimit; |
| 1169 | |
| 1170 | // @} |
| 1171 | |
| 1172 | private: |
| 1173 | typedef GrGLGradientEffect INHERITED; |
| 1174 | |
| 1175 | }; |
| 1176 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1177 | void CircleOutside2PtConicalEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1178 | GrProcessorKeyBuilder* b) const { |
| 1179 | GLCircleOutside2PtConicalEffect::GenKey(*this, caps, b); |
| 1180 | } |
| 1181 | |
| 1182 | GrGLFragmentProcessor* CircleOutside2PtConicalEffect::createGLInstance() const { |
| 1183 | return SkNEW_ARGS(GLCircleOutside2PtConicalEffect, (*this)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1184 | } |
| 1185 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1186 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircleOutside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1187 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 1188 | /* |
| 1189 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 1190 | */ |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1191 | GrFragmentProcessor* CircleOutside2PtConicalEffect::TestCreate(SkRandom* random, |
| 1192 | GrContext* context, |
| 1193 | const GrDrawTargetCaps&, |
| 1194 | GrTexture**) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1195 | SkPoint center1 = {random->nextUScalar1(), random->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 1196 | SkScalar radius1 = random->nextUScalar1() + 0.0001f; // make sure radius1 != 0 |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1197 | SkPoint center2; |
| 1198 | SkScalar radius2; |
| 1199 | SkScalar diffLen; |
| 1200 | do { |
| 1201 | center2.set(random->nextUScalar1(), random->nextUScalar1()); |
| 1202 | // If the circles share a center than we can't be in the outside case |
| 1203 | } while (center1 == center2); |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 1204 | SkPoint diff = center2 - center1; |
| 1205 | diffLen = diff.length(); |
| 1206 | // Below makes sure that circle one is not contained within circle two |
| 1207 | // and have radius2 >= radius to match sorting on cpu side |
| 1208 | radius2 = radius1 + random->nextRangeF(0.f, diffLen); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1209 | |
| 1210 | SkColor colors[kMaxRandomGradientColors]; |
| 1211 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 1212 | SkScalar* stops = stopsArray; |
| 1213 | SkShader::TileMode tm; |
| 1214 | int colorCount = RandomGradientParams(random, colors, &stops, &tm); |
| 1215 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 1216 | center2, radius2, |
| 1217 | colors, stops, colorCount, |
| 1218 | tm)); |
| 1219 | SkPaint paint; |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 1220 | GrColor paintColor; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1221 | GrFragmentProcessor* processor; |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 1222 | |
| 1223 | SkAssertResult(shader->asFragmentProcessor(context, paint, |
joshualitt | 4eaf9ce | 2015-04-28 13:31:18 -0700 | [diff] [blame] | 1224 | GrTest::TestMatrix(random), NULL, |
joshualitt | 5531d51 | 2014-12-17 15:50:11 -0800 | [diff] [blame] | 1225 | &paintColor, &processor)); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1226 | return processor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1227 | } |
| 1228 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1229 | GLCircleOutside2PtConicalEffect::GLCircleOutside2PtConicalEffect(const GrProcessor& processor) |
| 1230 | : fVSVaryingName(NULL) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1231 | , fFSVaryingName(NULL) |
| 1232 | , fCachedCenterX(SK_ScalarMax) |
| 1233 | , fCachedCenterY(SK_ScalarMax) |
| 1234 | , fCachedA(SK_ScalarMax) |
| 1235 | , fCachedB(SK_ScalarMax) |
| 1236 | , fCachedC(SK_ScalarMax) |
| 1237 | , fCachedTLimit(SK_ScalarMax) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1238 | const CircleOutside2PtConicalEffect& data = processor.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1239 | fIsFlipped = data.isFlipped(); |
| 1240 | } |
| 1241 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 1242 | void GLCircleOutside2PtConicalEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 1243 | const GrFragmentProcessor& fp, |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1244 | const char* outputColor, |
| 1245 | const char* inputColor, |
| 1246 | const TransformedCoordsArray& coords, |
| 1247 | const TextureSamplerArray& samplers) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1248 | const CircleOutside2PtConicalEffect& ge = fp.cast<CircleOutside2PtConicalEffect>(); |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 1249 | this->emitUniforms(builder, ge); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1250 | fCenterUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1251 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 1252 | "Conical2FSCenter"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1253 | fParamUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1254 | kVec4f_GrSLType, kDefault_GrSLPrecision, |
| 1255 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1256 | SkString tName("t"); |
| 1257 | |
| 1258 | GrGLShaderVar center = builder->getUniformVariable(fCenterUni); |
| 1259 | // params.x = A |
| 1260 | // params.y = B |
| 1261 | // params.z = C |
| 1262 | GrGLShaderVar params = builder->getUniformVariable(fParamUni); |
| 1263 | |
| 1264 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
egdaniel | 29bee0f | 2015-04-29 11:54:42 -0700 | [diff] [blame] | 1265 | GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1266 | SkString coords2DString = fsBuilder->ensureFSCoords2D(coords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 1267 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1268 | |
| 1269 | // output will default to transparent black (we simply won't write anything |
| 1270 | // else to it if invalid, instead of discarding or returning prematurely) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1271 | fsBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", outputColor); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1272 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1273 | // p = coords2D |
| 1274 | // e = center end |
| 1275 | // r = radius end |
| 1276 | // A = dot(e, e) - r^2 + 2 * r - 1 |
| 1277 | // B = (r -1) / A |
| 1278 | // C = 1 / A |
| 1279 | // d = dot(e, p) + B |
| 1280 | // t = d +/- sqrt(d^2 - A * dot(p, p) + C) |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1281 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1282 | fsBuilder->codeAppendf("\tfloat pDotp = dot(%s, %s);\n", coords2D, coords2D); |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1283 | fsBuilder->codeAppendf("\tfloat d = dot(%s, %s) + %s.y;\n", coords2D, center.c_str(), |
| 1284 | params.c_str()); |
| 1285 | fsBuilder->codeAppendf("\tfloat deter = d * d - %s.x * pDotp + %s.z;\n", params.c_str(), |
| 1286 | params.c_str()); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1287 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1288 | // Must check to see if we flipped the circle order (to make sure start radius < end radius) |
| 1289 | // If so we must also flip sign on sqrt |
| 1290 | if (!fIsFlipped) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1291 | fsBuilder->codeAppendf("\tfloat %s = d + sqrt(deter);\n", tName.c_str()); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1292 | } else { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1293 | fsBuilder->codeAppendf("\tfloat %s = d - sqrt(deter);\n", tName.c_str()); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1294 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1295 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1296 | fsBuilder->codeAppendf("\tif (%s >= %s.w && deter >= 0.0) {\n", tName.c_str(), params.c_str()); |
| 1297 | fsBuilder->codeAppend("\t\t"); |
joshualitt | 60030bc | 2014-11-25 14:21:55 -0800 | [diff] [blame] | 1298 | this->emitColor(builder, ge, tName.c_str(), outputColor, inputColor, samplers); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1299 | fsBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1300 | } |
| 1301 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1302 | void GLCircleOutside2PtConicalEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1303 | const GrProcessor& processor) { |
| 1304 | INHERITED::setData(pdman, processor); |
| 1305 | const CircleOutside2PtConicalEffect& data = processor.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | 44d83c1 | 2014-04-21 13:10:25 +0000 | [diff] [blame] | 1306 | SkASSERT(data.isFlipped() == fIsFlipped); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1307 | SkScalar centerX = data.centerX(); |
| 1308 | SkScalar centerY = data.centerY(); |
| 1309 | SkScalar A = data.A(); |
| 1310 | SkScalar B = data.B(); |
| 1311 | SkScalar C = data.C(); |
| 1312 | SkScalar tLimit = data.tLimit(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1313 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1314 | if (fCachedCenterX != centerX || fCachedCenterY != centerY || |
| 1315 | fCachedA != A || fCachedB != B || fCachedC != C || fCachedTLimit != tLimit) { |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1316 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1317 | pdman.set2f(fCenterUni, SkScalarToFloat(centerX), SkScalarToFloat(centerY)); |
| 1318 | pdman.set4f(fParamUni, SkScalarToFloat(A), SkScalarToFloat(B), SkScalarToFloat(C), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1319 | SkScalarToFloat(tLimit)); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1320 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1321 | fCachedCenterX = centerX; |
| 1322 | fCachedCenterY = centerY; |
| 1323 | fCachedA = A; |
| 1324 | fCachedB = B; |
| 1325 | fCachedC = C; |
| 1326 | fCachedTLimit = tLimit; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1327 | } |
| 1328 | } |
| 1329 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1330 | void GLCircleOutside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1331 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 1332 | uint32_t* key = b->add32n(2); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1333 | key[0] = GenBaseGradientKey(processor); |
| 1334 | key[1] = processor.cast<CircleOutside2PtConicalEffect>().isFlipped(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1335 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1336 | |
| 1337 | ////////////////////////////////////////////////////////////////////////////// |
| 1338 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1339 | GrFragmentProcessor* Gr2PtConicalGradientEffect::Create(GrContext* ctx, |
| 1340 | const SkTwoPointConicalGradient& shader, |
| 1341 | SkShader::TileMode tm, |
| 1342 | const SkMatrix* localMatrix) { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1343 | SkMatrix matrix; |
| 1344 | if (!shader.getLocalMatrix().invert(&matrix)) { |
| 1345 | return NULL; |
| 1346 | } |
commit-bot@chromium.org | 96fb748 | 2014-05-09 20:28:11 +0000 | [diff] [blame] | 1347 | if (localMatrix) { |
| 1348 | SkMatrix inv; |
| 1349 | if (!localMatrix->invert(&inv)) { |
| 1350 | return NULL; |
| 1351 | } |
| 1352 | matrix.postConcat(inv); |
| 1353 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1354 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1355 | if (shader.getStartRadius() < kErrorTol) { |
| 1356 | SkScalar focalX; |
| 1357 | ConicalType type = set_matrix_focal_conical(shader, &matrix, &focalX); |
| 1358 | if (type == kInside_ConicalType) { |
| 1359 | return FocalInside2PtConicalEffect::Create(ctx, shader, matrix, tm, focalX); |
| 1360 | } else if(type == kEdge_ConicalType) { |
| 1361 | set_matrix_edge_conical(shader, &matrix); |
| 1362 | return Edge2PtConicalEffect::Create(ctx, shader, matrix, tm); |
| 1363 | } else { |
| 1364 | return FocalOutside2PtConicalEffect::Create(ctx, shader, matrix, tm, focalX); |
| 1365 | } |
| 1366 | } |
| 1367 | |
| 1368 | CircleConicalInfo info; |
| 1369 | ConicalType type = set_matrix_circle_conical(shader, &matrix, &info); |
| 1370 | |
| 1371 | if (type == kInside_ConicalType) { |
| 1372 | return CircleInside2PtConicalEffect::Create(ctx, shader, matrix, tm, info); |
| 1373 | } else if (type == kEdge_ConicalType) { |
| 1374 | set_matrix_edge_conical(shader, &matrix); |
| 1375 | return Edge2PtConicalEffect::Create(ctx, shader, matrix, tm); |
| 1376 | } else { |
| 1377 | return CircleOutside2PtConicalEffect::Create(ctx, shader, matrix, tm, info); |
| 1378 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1379 | } |
| 1380 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1381 | #endif |