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 | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 14 | #include "GrPaint.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 15 | #include "gl/builders/GrGLProgramBuilder.h" |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 16 | #include "glsl/GrGLSLProgramDataManager.h" |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 17 | // For brevity |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 18 | typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 19 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 20 | static const SkScalar kErrorTol = 0.00001f; |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 21 | static const SkScalar kEdgeErrorTol = 5.f * kErrorTol; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 22 | |
| 23 | /** |
| 24 | * We have three general cases for 2pt conical gradients. First we always assume that |
| 25 | * the start radius <= end radius. Our first case (kInside_) is when the start circle |
| 26 | * is completely enclosed by the end circle. The second case (kOutside_) is the case |
| 27 | * when the start circle is either completely outside the end circle or the circles |
| 28 | * overlap. The final case (kEdge_) is when the start circle is inside the end one, |
| 29 | * but the two are just barely touching at 1 point along their edges. |
| 30 | */ |
| 31 | enum ConicalType { |
| 32 | kInside_ConicalType, |
| 33 | kOutside_ConicalType, |
| 34 | kEdge_ConicalType, |
| 35 | }; |
| 36 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 37 | ////////////////////////////////////////////////////////////////////////////// |
| 38 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 39 | static void set_matrix_edge_conical(const SkTwoPointConicalGradient& shader, |
| 40 | SkMatrix* invLMatrix) { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 41 | // Inverse of the current local matrix is passed in then, |
| 42 | // translate to center1, rotate so center2 is on x axis. |
| 43 | const SkPoint& center1 = shader.getStartCenter(); |
| 44 | const SkPoint& center2 = shader.getEndCenter(); |
| 45 | |
| 46 | invLMatrix->postTranslate(-center1.fX, -center1.fY); |
| 47 | |
| 48 | SkPoint diff = center2 - center1; |
| 49 | SkScalar diffLen = diff.length(); |
| 50 | if (0 != diffLen) { |
| 51 | SkScalar invDiffLen = SkScalarInvert(diffLen); |
| 52 | SkMatrix rot; |
| 53 | rot.setSinCos(-SkScalarMul(invDiffLen, diff.fY), |
| 54 | SkScalarMul(invDiffLen, diff.fX)); |
| 55 | invLMatrix->postConcat(rot); |
| 56 | } |
| 57 | } |
| 58 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 59 | class Edge2PtConicalEffect : public GrGradientEffect { |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 60 | public: |
| 61 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 62 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 63 | const SkTwoPointConicalGradient& shader, |
| 64 | const SkMatrix& matrix, |
| 65 | SkShader::TileMode tm) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 66 | return new Edge2PtConicalEffect(ctx, shader, matrix, tm); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 67 | } |
| 68 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 69 | virtual ~Edge2PtConicalEffect() {} |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 70 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 71 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 72 | return "Two-Point Conical Gradient Edge Touching"; |
| 73 | } |
| 74 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 75 | // 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] | 76 | SkScalar center() const { return fCenterX1; } |
| 77 | SkScalar diffRadius() const { return fDiffRadius; } |
| 78 | SkScalar radius() const { return fRadius0; } |
| 79 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 80 | private: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 81 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
| 82 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 83 | void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
| 84 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 85 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 86 | const Edge2PtConicalEffect& s = sBase.cast<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 87 | return (INHERITED::onIsEqual(sBase) && |
| 88 | this->fCenterX1 == s.fCenterX1 && |
| 89 | this->fRadius0 == s.fRadius0 && |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 90 | this->fDiffRadius == s.fDiffRadius); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 91 | } |
| 92 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 93 | Edge2PtConicalEffect(GrContext* ctx, |
| 94 | const SkTwoPointConicalGradient& shader, |
| 95 | const SkMatrix& matrix, |
| 96 | SkShader::TileMode tm) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 97 | : INHERITED(ctx, shader, matrix, tm), |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 98 | fCenterX1(shader.getCenterX1()), |
| 99 | fRadius0(shader.getStartRadius()), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 100 | fDiffRadius(shader.getDiffRadius()){ |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 101 | this->initClassID<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 102 | // 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] | 103 | // 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] | 104 | // start radius was close to zero, otherwise we scaled by the start radius. In addition |
| 105 | // Our test for the edge case in set_matrix_circle_conical has a higher tolerance so we |
| 106 | // need the sqrt value below |
| 107 | SkASSERT(SkScalarAbs(SkScalarAbs(fDiffRadius) - fCenterX1) < |
| 108 | (fRadius0 < kErrorTol ? shader.getEndRadius() * kEdgeErrorTol : |
| 109 | fRadius0 * sqrt(kEdgeErrorTol))); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 110 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 111 | // We pass the linear part of the quadratic as a varying. |
| 112 | // float b = -2.0 * (fCenterX1 * x + fRadius0 * fDiffRadius * z) |
| 113 | fBTransform = this->getCoordTransform(); |
| 114 | SkMatrix& bMatrix = *fBTransform.accessMatrix(); |
| 115 | SkScalar r0dr = SkScalarMul(fRadius0, fDiffRadius); |
| 116 | bMatrix[SkMatrix::kMScaleX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMScaleX]) + |
| 117 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp0])); |
| 118 | bMatrix[SkMatrix::kMSkewX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMSkewX]) + |
| 119 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp1])); |
| 120 | bMatrix[SkMatrix::kMTransX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMTransX]) + |
| 121 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp2])); |
| 122 | this->addCoordTransform(&fBTransform); |
| 123 | } |
| 124 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 125 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 126 | |
| 127 | // @{ |
| 128 | // Cache of values - these can change arbitrarily, EXCEPT |
| 129 | // we shouldn't change between degenerate and non-degenerate?! |
| 130 | |
| 131 | GrCoordTransform fBTransform; |
| 132 | SkScalar fCenterX1; |
| 133 | SkScalar fRadius0; |
| 134 | SkScalar fDiffRadius; |
| 135 | |
| 136 | // @} |
| 137 | |
| 138 | typedef GrGradientEffect INHERITED; |
| 139 | }; |
| 140 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 141 | class GLEdge2PtConicalEffect : public GrGLGradientEffect { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 142 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 143 | GLEdge2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 144 | virtual ~GLEdge2PtConicalEffect() { } |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 145 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 146 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 147 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 148 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 149 | |
| 150 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 151 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 152 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 153 | UniformHandle fParamUni; |
| 154 | |
| 155 | const char* fVSVaryingName; |
| 156 | const char* fFSVaryingName; |
| 157 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 158 | // @{ |
| 159 | /// Values last uploaded as uniforms |
| 160 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 161 | SkScalar fCachedRadius; |
| 162 | SkScalar fCachedDiffRadius; |
| 163 | |
| 164 | // @} |
| 165 | |
| 166 | private: |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 167 | typedef GrGLGradientEffect INHERITED; |
| 168 | |
| 169 | }; |
| 170 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 171 | void Edge2PtConicalEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 172 | GrProcessorKeyBuilder* b) const { |
| 173 | GLEdge2PtConicalEffect::GenKey(*this, caps, b); |
| 174 | } |
| 175 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 176 | GrGLFragmentProcessor* Edge2PtConicalEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 177 | return new GLEdge2PtConicalEffect(*this); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 178 | } |
skia.committer@gmail.com | 221b911 | 2014-04-04 03:04:32 +0000 | [diff] [blame] | 179 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 180 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(Edge2PtConicalEffect); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 181 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 182 | /* |
| 183 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 184 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 185 | const GrFragmentProcessor* Edge2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 186 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 187 | SkScalar radius1 = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 188 | SkPoint center2; |
| 189 | SkScalar radius2; |
| 190 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 191 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 192 | // If the circles are identical the factory will give us an empty shader. |
| 193 | // This will happen if we pick identical centers |
| 194 | } while (center1 == center2); |
| 195 | |
| 196 | // Below makes sure that circle one is contained within circle two |
| 197 | // and both circles are touching on an edge |
| 198 | SkPoint diff = center2 - center1; |
| 199 | SkScalar diffLen = diff.length(); |
| 200 | radius2 = radius1 + diffLen; |
| 201 | |
| 202 | SkColor colors[kMaxRandomGradientColors]; |
| 203 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 204 | SkScalar* stops = stopsArray; |
| 205 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 206 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 207 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 208 | center2, radius2, |
| 209 | colors, stops, colorCount, |
| 210 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 211 | const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 212 | GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 213 | GrAlwaysAssert(fp); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 214 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 215 | } |
| 216 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 217 | GLEdge2PtConicalEffect::GLEdge2PtConicalEffect(const GrProcessor&) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 218 | : fVSVaryingName(nullptr) |
| 219 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 220 | , fCachedRadius(-SK_ScalarMax) |
| 221 | , fCachedDiffRadius(-SK_ScalarMax) {} |
| 222 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 223 | void GLEdge2PtConicalEffect::emitCode(EmitArgs& args) { |
| 224 | const Edge2PtConicalEffect& ge = args.fFp.cast<Edge2PtConicalEffect>(); |
| 225 | this->emitUniforms(args.fBuilder, ge); |
| 226 | fParamUni = args.fBuilder->addUniformArray(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 227 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 228 | "Conical2FSParams", 3); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 229 | |
| 230 | SkString cName("c"); |
| 231 | SkString tName("t"); |
| 232 | SkString p0; // start radius |
| 233 | SkString p1; // start radius squared |
| 234 | SkString p2; // difference in radii (r1 - r0) |
| 235 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 236 | args.fBuilder->getUniformVariable(fParamUni).appendArrayAccess(0, &p0); |
| 237 | args.fBuilder->getUniformVariable(fParamUni).appendArrayAccess(1, &p1); |
| 238 | args.fBuilder->getUniformVariable(fParamUni).appendArrayAccess(2, &p2); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 239 | |
| 240 | // We interpolate the linear component in coords[1]. |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 241 | SkASSERT(args.fCoords[0].getType() == args.fCoords[1].getType()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 242 | const char* coords2D; |
| 243 | SkString bVar; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 244 | GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); |
| 245 | if (kVec3f_GrSLType == args.fCoords[0].getType()) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 246 | fsBuilder->codeAppendf("\tvec3 interpolants = vec3(%s.xy / %s.z, %s.x / %s.z);\n", |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 247 | args.fCoords[0].c_str(), args.fCoords[0].c_str(), |
| 248 | args.fCoords[1].c_str(), args.fCoords[1].c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 249 | coords2D = "interpolants.xy"; |
| 250 | bVar = "interpolants.z"; |
| 251 | } else { |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 252 | coords2D = args.fCoords[0].c_str(); |
| 253 | bVar.printf("%s.x", args.fCoords[1].c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | // output will default to transparent black (we simply won't write anything |
| 257 | // else to it if invalid, instead of discarding or returning prematurely) |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 258 | fsBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", args.fOutputColor); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 259 | |
| 260 | // c = (x^2)+(y^2) - params[1] |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 261 | fsBuilder->codeAppendf("\tfloat %s = dot(%s, %s) - %s;\n", |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 262 | cName.c_str(), coords2D, coords2D, p1.c_str()); |
| 263 | |
| 264 | // linear case: t = -c/b |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 265 | fsBuilder->codeAppendf("\tfloat %s = -(%s / %s);\n", tName.c_str(), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 266 | cName.c_str(), bVar.c_str()); |
| 267 | |
| 268 | // if r(t) > 0, then t will be the x coordinate |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 269 | 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] | 270 | p2.c_str(), p0.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 271 | fsBuilder->codeAppend("\t"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 272 | this->emitColor(args.fBuilder, ge, tName.c_str(), args.fOutputColor, args.fInputColor, |
| 273 | args.fSamplers); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 274 | fsBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 275 | } |
| 276 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 277 | void GLEdge2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 278 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 279 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 280 | const Edge2PtConicalEffect& data = processor.cast<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 281 | SkScalar radius0 = data.radius(); |
| 282 | SkScalar diffRadius = data.diffRadius(); |
| 283 | |
| 284 | if (fCachedRadius != radius0 || |
| 285 | fCachedDiffRadius != diffRadius) { |
| 286 | |
| 287 | float values[3] = { |
| 288 | SkScalarToFloat(radius0), |
| 289 | SkScalarToFloat(SkScalarMul(radius0, radius0)), |
| 290 | SkScalarToFloat(diffRadius) |
| 291 | }; |
| 292 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 293 | pdman.set1fv(fParamUni, 3, values); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 294 | fCachedRadius = radius0; |
| 295 | fCachedDiffRadius = diffRadius; |
| 296 | } |
| 297 | } |
| 298 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 299 | void GLEdge2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 300 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 301 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 302 | } |
| 303 | |
| 304 | ////////////////////////////////////////////////////////////////////////////// |
| 305 | // Focal Conical Gradients |
| 306 | ////////////////////////////////////////////////////////////////////////////// |
| 307 | |
| 308 | static ConicalType set_matrix_focal_conical(const SkTwoPointConicalGradient& shader, |
| 309 | SkMatrix* invLMatrix, SkScalar* focalX) { |
| 310 | // Inverse of the current local matrix is passed in then, |
| 311 | // translate, scale, and rotate such that endCircle is unit circle on x-axis, |
| 312 | // and focal point is at the origin. |
| 313 | ConicalType conicalType; |
| 314 | const SkPoint& focal = shader.getStartCenter(); |
| 315 | const SkPoint& centerEnd = shader.getEndCenter(); |
| 316 | SkScalar radius = shader.getEndRadius(); |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 317 | SkScalar invRadius = 1.f / radius; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 318 | |
| 319 | SkMatrix matrix; |
| 320 | |
| 321 | matrix.setTranslate(-centerEnd.fX, -centerEnd.fY); |
| 322 | matrix.postScale(invRadius, invRadius); |
| 323 | |
| 324 | SkPoint focalTrans; |
| 325 | matrix.mapPoints(&focalTrans, &focal, 1); |
| 326 | *focalX = focalTrans.length(); |
| 327 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 328 | if (0.f != *focalX) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 329 | SkScalar invFocalX = SkScalarInvert(*focalX); |
| 330 | SkMatrix rot; |
| 331 | rot.setSinCos(-SkScalarMul(invFocalX, focalTrans.fY), |
| 332 | SkScalarMul(invFocalX, focalTrans.fX)); |
| 333 | matrix.postConcat(rot); |
| 334 | } |
| 335 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 336 | matrix.postTranslate(-(*focalX), 0.f); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 337 | |
| 338 | // If the focal point is touching the edge of the circle it will |
| 339 | // cause a degenerate case that must be handled separately |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 340 | // kEdgeErrorTol = 5 * kErrorTol was picked after manual testing the |
| 341 | // stability trade off versus the linear approx used in the Edge Shader |
| 342 | if (SkScalarAbs(1.f - (*focalX)) < kEdgeErrorTol) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 343 | return kEdge_ConicalType; |
| 344 | } |
| 345 | |
| 346 | // Scale factor 1 / (1 - focalX * focalX) |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 347 | SkScalar oneMinusF2 = 1.f - SkScalarMul(*focalX, *focalX); |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 348 | SkScalar s = SkScalarInvert(oneMinusF2); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 349 | |
| 350 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 351 | if (s >= 0.f) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 352 | conicalType = kInside_ConicalType; |
| 353 | matrix.postScale(s, s * SkScalarSqrt(oneMinusF2)); |
| 354 | } else { |
| 355 | conicalType = kOutside_ConicalType; |
| 356 | matrix.postScale(s, s); |
| 357 | } |
| 358 | |
| 359 | invLMatrix->postConcat(matrix); |
| 360 | |
| 361 | return conicalType; |
| 362 | } |
| 363 | |
| 364 | ////////////////////////////////////////////////////////////////////////////// |
| 365 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 366 | class FocalOutside2PtConicalEffect : public GrGradientEffect { |
| 367 | public: |
| 368 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 369 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 370 | const SkTwoPointConicalGradient& shader, |
| 371 | const SkMatrix& matrix, |
| 372 | SkShader::TileMode tm, |
| 373 | SkScalar focalX) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 374 | return new FocalOutside2PtConicalEffect(ctx, shader, matrix, tm, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 375 | } |
| 376 | |
| 377 | virtual ~FocalOutside2PtConicalEffect() { } |
| 378 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 379 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 380 | return "Two-Point Conical Gradient Focal Outside"; |
| 381 | } |
| 382 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 383 | bool isFlipped() const { return fIsFlipped; } |
| 384 | SkScalar focal() const { return fFocalX; } |
| 385 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 386 | private: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 387 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
| 388 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 389 | void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
| 390 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 391 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 392 | const FocalOutside2PtConicalEffect& s = sBase.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 393 | return (INHERITED::onIsEqual(sBase) && |
| 394 | this->fFocalX == s.fFocalX && |
| 395 | this->fIsFlipped == s.fIsFlipped); |
| 396 | } |
| 397 | |
| 398 | FocalOutside2PtConicalEffect(GrContext* ctx, |
| 399 | const SkTwoPointConicalGradient& shader, |
| 400 | const SkMatrix& matrix, |
| 401 | SkShader::TileMode tm, |
| 402 | SkScalar focalX) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 403 | : INHERITED(ctx, shader, matrix, tm) |
joshualitt | b245605 | 2015-07-08 09:36:59 -0700 | [diff] [blame] | 404 | , fFocalX(focalX) |
| 405 | , fIsFlipped(shader.isFlippedGrad()) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 406 | this->initClassID<FocalOutside2PtConicalEffect>(); |
| 407 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 408 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 409 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 410 | |
| 411 | SkScalar fFocalX; |
| 412 | bool fIsFlipped; |
| 413 | |
| 414 | typedef GrGradientEffect INHERITED; |
| 415 | }; |
| 416 | |
| 417 | class GLFocalOutside2PtConicalEffect : public GrGLGradientEffect { |
| 418 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 419 | GLFocalOutside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 420 | virtual ~GLFocalOutside2PtConicalEffect() { } |
| 421 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 422 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 423 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 424 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 425 | |
| 426 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 427 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 428 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 429 | UniformHandle fParamUni; |
| 430 | |
| 431 | const char* fVSVaryingName; |
| 432 | const char* fFSVaryingName; |
| 433 | |
| 434 | bool fIsFlipped; |
| 435 | |
| 436 | // @{ |
| 437 | /// Values last uploaded as uniforms |
| 438 | |
| 439 | SkScalar fCachedFocal; |
| 440 | |
| 441 | // @} |
| 442 | |
| 443 | private: |
| 444 | typedef GrGLGradientEffect INHERITED; |
| 445 | |
| 446 | }; |
| 447 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 448 | void FocalOutside2PtConicalEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 449 | GrProcessorKeyBuilder* b) const { |
| 450 | GLFocalOutside2PtConicalEffect::GenKey(*this, caps, b); |
| 451 | } |
| 452 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 453 | GrGLFragmentProcessor* FocalOutside2PtConicalEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 454 | return new GLFocalOutside2PtConicalEffect(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 455 | } |
| 456 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 457 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(FocalOutside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 458 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 459 | /* |
| 460 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 461 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 462 | const GrFragmentProcessor* FocalOutside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 463 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 464 | SkScalar radius1 = 0.f; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 465 | SkPoint center2; |
| 466 | SkScalar radius2; |
| 467 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 468 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 469 | // 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] | 470 | } while (center1 == center2); |
| 471 | SkPoint diff = center2 - center1; |
| 472 | SkScalar diffLen = diff.length(); |
| 473 | // Below makes sure that the focal point is not contained within circle two |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 474 | radius2 = d->fRandom->nextRangeF(0.f, diffLen); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 475 | |
| 476 | SkColor colors[kMaxRandomGradientColors]; |
| 477 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 478 | SkScalar* stops = stopsArray; |
| 479 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 480 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 481 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 482 | center2, radius2, |
| 483 | colors, stops, colorCount, |
| 484 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 485 | const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 486 | GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 487 | GrAlwaysAssert(fp); |
| 488 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 489 | } |
| 490 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 491 | GLFocalOutside2PtConicalEffect::GLFocalOutside2PtConicalEffect(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 492 | : fVSVaryingName(nullptr) |
| 493 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 494 | , fCachedFocal(SK_ScalarMax) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 495 | const FocalOutside2PtConicalEffect& data = processor.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 496 | fIsFlipped = data.isFlipped(); |
| 497 | } |
| 498 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 499 | void GLFocalOutside2PtConicalEffect::emitCode(EmitArgs& args) { |
| 500 | const FocalOutside2PtConicalEffect& ge = args.fFp.cast<FocalOutside2PtConicalEffect>(); |
| 501 | this->emitUniforms(args.fBuilder, ge); |
| 502 | fParamUni = args.fBuilder->addUniformArray(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 503 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 504 | "Conical2FSParams", 2); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 505 | SkString tName("t"); |
| 506 | SkString p0; // focalX |
| 507 | SkString p1; // 1 - focalX * focalX |
| 508 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 509 | args.fBuilder->getUniformVariable(fParamUni).appendArrayAccess(0, &p0); |
| 510 | args.fBuilder->getUniformVariable(fParamUni).appendArrayAccess(1, &p1); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 511 | |
| 512 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 513 | GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); |
| 514 | SkString coords2DString = fsBuilder->ensureFSCoords2D(args.fCoords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 515 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 516 | |
| 517 | // t = p.x * focal.x +/- sqrt(p.x^2 + (1 - focal.x^2) * p.y^2) |
| 518 | |
| 519 | // output will default to transparent black (we simply won't write anything |
| 520 | // else to it if invalid, instead of discarding or returning prematurely) |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 521 | fsBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", args.fOutputColor); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 522 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 523 | fsBuilder->codeAppendf("\tfloat xs = %s.x * %s.x;\n", coords2D, coords2D); |
| 524 | fsBuilder->codeAppendf("\tfloat ys = %s.y * %s.y;\n", coords2D, coords2D); |
| 525 | 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] | 526 | |
| 527 | // Must check to see if we flipped the circle order (to make sure start radius < end radius) |
| 528 | // If so we must also flip sign on sqrt |
| 529 | if (!fIsFlipped) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 530 | 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] | 531 | coords2D, p0.c_str()); |
| 532 | } else { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 533 | 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] | 534 | coords2D, p0.c_str()); |
| 535 | } |
| 536 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 537 | fsBuilder->codeAppendf("\tif (%s >= 0.0 && d >= 0.0) {\n", tName.c_str()); |
| 538 | fsBuilder->codeAppend("\t\t"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 539 | this->emitColor(args.fBuilder, ge, tName.c_str(), args.fOutputColor, args.fInputColor, |
| 540 | args.fSamplers); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 541 | fsBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 542 | } |
| 543 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 544 | void GLFocalOutside2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 545 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 546 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 547 | const FocalOutside2PtConicalEffect& data = processor.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 548 | SkASSERT(data.isFlipped() == fIsFlipped); |
| 549 | SkScalar focal = data.focal(); |
| 550 | |
| 551 | if (fCachedFocal != focal) { |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 552 | SkScalar oneMinus2F = 1.f - SkScalarMul(focal, focal); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 553 | |
| 554 | float values[2] = { |
| 555 | SkScalarToFloat(focal), |
| 556 | SkScalarToFloat(oneMinus2F), |
| 557 | }; |
| 558 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 559 | pdman.set1fv(fParamUni, 2, values); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 560 | fCachedFocal = focal; |
| 561 | } |
| 562 | } |
| 563 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 564 | void GLFocalOutside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 565 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 566 | uint32_t* key = b->add32n(2); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 567 | key[0] = GenBaseGradientKey(processor); |
| 568 | key[1] = processor.cast<FocalOutside2PtConicalEffect>().isFlipped(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 569 | } |
| 570 | |
| 571 | ////////////////////////////////////////////////////////////////////////////// |
| 572 | |
| 573 | class GLFocalInside2PtConicalEffect; |
| 574 | |
| 575 | class FocalInside2PtConicalEffect : public GrGradientEffect { |
| 576 | public: |
| 577 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 578 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 579 | const SkTwoPointConicalGradient& shader, |
| 580 | const SkMatrix& matrix, |
| 581 | SkShader::TileMode tm, |
| 582 | SkScalar focalX) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 583 | return new FocalInside2PtConicalEffect(ctx, shader, matrix, tm, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 584 | } |
| 585 | |
| 586 | virtual ~FocalInside2PtConicalEffect() {} |
| 587 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 588 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 589 | return "Two-Point Conical Gradient Focal Inside"; |
| 590 | } |
| 591 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 592 | SkScalar focal() const { return fFocalX; } |
| 593 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 594 | typedef GLFocalInside2PtConicalEffect GLProcessor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 595 | |
| 596 | private: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 597 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
| 598 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 599 | void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
| 600 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 601 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 602 | const FocalInside2PtConicalEffect& s = sBase.cast<FocalInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 603 | return (INHERITED::onIsEqual(sBase) && |
| 604 | this->fFocalX == s.fFocalX); |
| 605 | } |
| 606 | |
| 607 | FocalInside2PtConicalEffect(GrContext* ctx, |
| 608 | const SkTwoPointConicalGradient& shader, |
| 609 | const SkMatrix& matrix, |
| 610 | SkShader::TileMode tm, |
| 611 | SkScalar focalX) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 612 | : INHERITED(ctx, shader, matrix, tm), fFocalX(focalX) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 613 | this->initClassID<FocalInside2PtConicalEffect>(); |
| 614 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 615 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 616 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 617 | |
| 618 | SkScalar fFocalX; |
| 619 | |
| 620 | typedef GrGradientEffect INHERITED; |
| 621 | }; |
| 622 | |
| 623 | class GLFocalInside2PtConicalEffect : public GrGLGradientEffect { |
| 624 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 625 | GLFocalInside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 626 | virtual ~GLFocalInside2PtConicalEffect() {} |
| 627 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 628 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 629 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 630 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 631 | |
| 632 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 633 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 634 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 635 | UniformHandle fFocalUni; |
| 636 | |
| 637 | const char* fVSVaryingName; |
| 638 | const char* fFSVaryingName; |
| 639 | |
| 640 | // @{ |
| 641 | /// Values last uploaded as uniforms |
| 642 | |
| 643 | SkScalar fCachedFocal; |
| 644 | |
| 645 | // @} |
| 646 | |
| 647 | private: |
| 648 | typedef GrGLGradientEffect INHERITED; |
| 649 | |
| 650 | }; |
| 651 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 652 | void FocalInside2PtConicalEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 653 | GrProcessorKeyBuilder* b) const { |
| 654 | GLFocalInside2PtConicalEffect::GenKey(*this, caps, b); |
| 655 | } |
| 656 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 657 | GrGLFragmentProcessor* FocalInside2PtConicalEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 658 | return new GLFocalInside2PtConicalEffect(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 659 | } |
| 660 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 661 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(FocalInside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 662 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 663 | /* |
| 664 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 665 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 666 | const GrFragmentProcessor* FocalInside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 667 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 668 | SkScalar radius1 = 0.f; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 669 | SkPoint center2; |
| 670 | SkScalar radius2; |
| 671 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 672 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 673 | // Below makes sure radius2 is larger enouch such that the focal point |
| 674 | // is inside the end circle |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 675 | SkScalar increase = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 676 | SkPoint diff = center2 - center1; |
| 677 | SkScalar diffLen = diff.length(); |
| 678 | radius2 = diffLen + increase; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 679 | // If the circles are identical the factory will give us an empty shader. |
| 680 | } while (radius1 == radius2 && center1 == center2); |
| 681 | |
| 682 | SkColor colors[kMaxRandomGradientColors]; |
| 683 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 684 | SkScalar* stops = stopsArray; |
| 685 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 686 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 687 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 688 | center2, radius2, |
| 689 | colors, stops, colorCount, |
| 690 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 691 | const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 692 | GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 693 | GrAlwaysAssert(fp); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 694 | return fp; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 695 | } |
| 696 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 697 | GLFocalInside2PtConicalEffect::GLFocalInside2PtConicalEffect(const GrProcessor&) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 698 | : fVSVaryingName(nullptr) |
| 699 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 700 | , fCachedFocal(SK_ScalarMax) {} |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 701 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 702 | void GLFocalInside2PtConicalEffect::emitCode(EmitArgs& args) { |
| 703 | const FocalInside2PtConicalEffect& ge = args.fFp.cast<FocalInside2PtConicalEffect>(); |
| 704 | this->emitUniforms(args.fBuilder, ge); |
| 705 | fFocalUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 706 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 707 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 708 | SkString tName("t"); |
| 709 | |
| 710 | // this is the distance along x-axis from the end center to focal point in |
| 711 | // transformed coordinates |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 712 | GrGLSLShaderVar focal = args.fBuilder->getUniformVariable(fFocalUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 713 | |
| 714 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 715 | GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); |
| 716 | SkString coords2DString = fsBuilder->ensureFSCoords2D(args.fCoords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 717 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 718 | |
| 719 | // t = p.x * focalX + length(p) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 720 | 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] | 721 | coords2D, focal.c_str(), coords2D); |
| 722 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 723 | this->emitColor(args.fBuilder, ge, tName.c_str(), args.fOutputColor, args.fInputColor, |
| 724 | args.fSamplers); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 725 | } |
| 726 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 727 | void GLFocalInside2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 728 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 729 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 730 | const FocalInside2PtConicalEffect& data = processor.cast<FocalInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 731 | SkScalar focal = data.focal(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 732 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 733 | if (fCachedFocal != focal) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 734 | pdman.set1f(fFocalUni, SkScalarToFloat(focal)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 735 | fCachedFocal = focal; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 736 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 737 | } |
| 738 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 739 | void GLFocalInside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 740 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 741 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 742 | } |
| 743 | |
| 744 | ////////////////////////////////////////////////////////////////////////////// |
| 745 | // Circle Conical Gradients |
| 746 | ////////////////////////////////////////////////////////////////////////////// |
| 747 | |
| 748 | struct CircleConicalInfo { |
| 749 | SkPoint fCenterEnd; |
| 750 | SkScalar fA; |
| 751 | SkScalar fB; |
| 752 | SkScalar fC; |
| 753 | }; |
| 754 | |
| 755 | // Returns focal distance along x-axis in transformed coords |
| 756 | static ConicalType set_matrix_circle_conical(const SkTwoPointConicalGradient& shader, |
| 757 | SkMatrix* invLMatrix, CircleConicalInfo* info) { |
| 758 | // Inverse of the current local matrix is passed in then, |
| 759 | // translate and scale such that start circle is on the origin and has radius 1 |
| 760 | const SkPoint& centerStart = shader.getStartCenter(); |
| 761 | const SkPoint& centerEnd = shader.getEndCenter(); |
| 762 | SkScalar radiusStart = shader.getStartRadius(); |
| 763 | SkScalar radiusEnd = shader.getEndRadius(); |
| 764 | |
| 765 | SkMatrix matrix; |
| 766 | |
| 767 | matrix.setTranslate(-centerStart.fX, -centerStart.fY); |
| 768 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 769 | SkScalar invStartRad = 1.f / radiusStart; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 770 | matrix.postScale(invStartRad, invStartRad); |
| 771 | |
| 772 | radiusEnd /= radiusStart; |
| 773 | |
| 774 | SkPoint centerEndTrans; |
| 775 | matrix.mapPoints(¢erEndTrans, ¢erEnd, 1); |
| 776 | |
| 777 | SkScalar A = centerEndTrans.fX * centerEndTrans.fX + centerEndTrans.fY * centerEndTrans.fY |
| 778 | - radiusEnd * radiusEnd + 2 * radiusEnd - 1; |
| 779 | |
| 780 | // Check to see if start circle is inside end circle with edges touching. |
| 781 | // 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] | 782 | // to the edge shader. kEdgeErrorTol = 5 * kErrorTol was picked after manual testing |
| 783 | // so that C = 1 / A is stable, and the linear approximation used in the Edge shader is |
| 784 | // still accurate. |
| 785 | if (SkScalarAbs(A) < kEdgeErrorTol) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 786 | return kEdge_ConicalType; |
| 787 | } |
| 788 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 789 | SkScalar C = 1.f / A; |
| 790 | SkScalar B = (radiusEnd - 1.f) * C; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 791 | |
| 792 | matrix.postScale(C, C); |
| 793 | |
| 794 | invLMatrix->postConcat(matrix); |
| 795 | |
| 796 | info->fCenterEnd = centerEndTrans; |
| 797 | info->fA = A; |
| 798 | info->fB = B; |
| 799 | info->fC = C; |
| 800 | |
| 801 | // 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] | 802 | if (A < 0.f) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 803 | return kInside_ConicalType; |
| 804 | } |
| 805 | return kOutside_ConicalType; |
| 806 | } |
| 807 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 808 | class CircleInside2PtConicalEffect : public GrGradientEffect { |
| 809 | public: |
| 810 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 811 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 812 | const SkTwoPointConicalGradient& shader, |
| 813 | const SkMatrix& matrix, |
| 814 | SkShader::TileMode tm, |
| 815 | const CircleConicalInfo& info) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 816 | return new CircleInside2PtConicalEffect(ctx, shader, matrix, tm, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 817 | } |
| 818 | |
| 819 | virtual ~CircleInside2PtConicalEffect() {} |
| 820 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 821 | const char* name() const override { return "Two-Point Conical Gradient Inside"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 822 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 823 | SkScalar centerX() const { return fInfo.fCenterEnd.fX; } |
| 824 | SkScalar centerY() const { return fInfo.fCenterEnd.fY; } |
| 825 | SkScalar A() const { return fInfo.fA; } |
| 826 | SkScalar B() const { return fInfo.fB; } |
| 827 | SkScalar C() const { return fInfo.fC; } |
| 828 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 829 | private: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 830 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
| 831 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 832 | virtual void onGetGLProcessorKey(const GrGLSLCaps& caps, |
| 833 | GrProcessorKeyBuilder* b) const override; |
| 834 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 835 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 836 | const CircleInside2PtConicalEffect& s = sBase.cast<CircleInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 837 | return (INHERITED::onIsEqual(sBase) && |
| 838 | this->fInfo.fCenterEnd == s.fInfo.fCenterEnd && |
| 839 | this->fInfo.fA == s.fInfo.fA && |
| 840 | this->fInfo.fB == s.fInfo.fB && |
| 841 | this->fInfo.fC == s.fInfo.fC); |
| 842 | } |
| 843 | |
| 844 | CircleInside2PtConicalEffect(GrContext* ctx, |
| 845 | const SkTwoPointConicalGradient& shader, |
| 846 | const SkMatrix& matrix, |
| 847 | SkShader::TileMode tm, |
| 848 | const CircleConicalInfo& info) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 849 | : INHERITED(ctx, shader, matrix, tm), fInfo(info) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 850 | this->initClassID<CircleInside2PtConicalEffect>(); |
| 851 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 852 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 853 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 854 | |
| 855 | const CircleConicalInfo fInfo; |
| 856 | |
| 857 | typedef GrGradientEffect INHERITED; |
| 858 | }; |
| 859 | |
| 860 | class GLCircleInside2PtConicalEffect : public GrGLGradientEffect { |
| 861 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 862 | GLCircleInside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 863 | virtual ~GLCircleInside2PtConicalEffect() {} |
| 864 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 865 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 866 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 867 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 868 | |
| 869 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 870 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 871 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 872 | UniformHandle fCenterUni; |
| 873 | UniformHandle fParamUni; |
| 874 | |
| 875 | const char* fVSVaryingName; |
| 876 | const char* fFSVaryingName; |
| 877 | |
| 878 | // @{ |
| 879 | /// Values last uploaded as uniforms |
| 880 | |
| 881 | SkScalar fCachedCenterX; |
| 882 | SkScalar fCachedCenterY; |
| 883 | SkScalar fCachedA; |
| 884 | SkScalar fCachedB; |
| 885 | SkScalar fCachedC; |
| 886 | |
| 887 | // @} |
| 888 | |
| 889 | private: |
| 890 | typedef GrGLGradientEffect INHERITED; |
| 891 | |
| 892 | }; |
| 893 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 894 | void CircleInside2PtConicalEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 895 | GrProcessorKeyBuilder* b) const { |
| 896 | GLCircleInside2PtConicalEffect::GenKey(*this, caps, b); |
| 897 | } |
| 898 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 899 | GrGLFragmentProcessor* CircleInside2PtConicalEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 900 | return new GLCircleInside2PtConicalEffect(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 901 | } |
| 902 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 903 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircleInside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 904 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 905 | /* |
| 906 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 907 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 908 | const GrFragmentProcessor* CircleInside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 909 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 910 | SkScalar radius1 = d->fRandom->nextUScalar1() + 0.0001f; // make sure radius1 != 0 |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 911 | SkPoint center2; |
| 912 | SkScalar radius2; |
| 913 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 914 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 915 | // Below makes sure that circle one is contained within circle two |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 916 | SkScalar increase = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 917 | SkPoint diff = center2 - center1; |
| 918 | SkScalar diffLen = diff.length(); |
| 919 | radius2 = radius1 + diffLen + increase; |
| 920 | // If the circles are identical the factory will give us an empty shader. |
| 921 | } while (radius1 == radius2 && center1 == center2); |
| 922 | |
| 923 | SkColor colors[kMaxRandomGradientColors]; |
| 924 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 925 | SkScalar* stops = stopsArray; |
| 926 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 927 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 928 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 929 | center2, radius2, |
| 930 | colors, stops, colorCount, |
| 931 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 932 | const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 933 | GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 934 | GrAlwaysAssert(fp); |
joshualitt | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 935 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 936 | } |
| 937 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 938 | GLCircleInside2PtConicalEffect::GLCircleInside2PtConicalEffect(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 939 | : fVSVaryingName(nullptr) |
| 940 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 941 | , fCachedCenterX(SK_ScalarMax) |
| 942 | , fCachedCenterY(SK_ScalarMax) |
| 943 | , fCachedA(SK_ScalarMax) |
| 944 | , fCachedB(SK_ScalarMax) |
| 945 | , fCachedC(SK_ScalarMax) {} |
| 946 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 947 | void GLCircleInside2PtConicalEffect::emitCode(EmitArgs& args) { |
| 948 | const CircleInside2PtConicalEffect& ge = args.fFp.cast<CircleInside2PtConicalEffect>(); |
| 949 | this->emitUniforms(args.fBuilder, ge); |
| 950 | fCenterUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 951 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 952 | "Conical2FSCenter"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 953 | fParamUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 954 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 955 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 956 | SkString tName("t"); |
| 957 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 958 | GrGLSLShaderVar center = args.fBuilder->getUniformVariable(fCenterUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 959 | // params.x = A |
| 960 | // params.y = B |
| 961 | // params.z = C |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 962 | GrGLSLShaderVar params = args.fBuilder->getUniformVariable(fParamUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 963 | |
| 964 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 965 | GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); |
| 966 | SkString coords2DString = fsBuilder->ensureFSCoords2D(args.fCoords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 967 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 968 | |
| 969 | // p = coords2D |
| 970 | // e = center end |
| 971 | // r = radius end |
| 972 | // A = dot(e, e) - r^2 + 2 * r - 1 |
| 973 | // B = (r -1) / A |
| 974 | // C = 1 / A |
| 975 | // d = dot(e, p) + B |
| 976 | // t = d +/- sqrt(d^2 - A * dot(p, p) + C) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 977 | fsBuilder->codeAppendf("\tfloat pDotp = dot(%s, %s);\n", coords2D, coords2D); |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 978 | fsBuilder->codeAppendf("\tfloat d = dot(%s, %s) + %s.y;\n", coords2D, center.c_str(), |
| 979 | params.c_str()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 980 | 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] | 981 | tName.c_str(), params.c_str(), params.c_str()); |
| 982 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 983 | this->emitColor(args.fBuilder, ge, tName.c_str(), args.fOutputColor, args.fInputColor, |
| 984 | args.fSamplers); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 985 | } |
| 986 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 987 | void GLCircleInside2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 988 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 989 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 990 | const CircleInside2PtConicalEffect& data = processor.cast<CircleInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 991 | SkScalar centerX = data.centerX(); |
| 992 | SkScalar centerY = data.centerY(); |
| 993 | SkScalar A = data.A(); |
| 994 | SkScalar B = data.B(); |
| 995 | SkScalar C = data.C(); |
| 996 | |
| 997 | if (fCachedCenterX != centerX || fCachedCenterY != centerY || |
| 998 | fCachedA != A || fCachedB != B || fCachedC != C) { |
| 999 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1000 | pdman.set2f(fCenterUni, SkScalarToFloat(centerX), SkScalarToFloat(centerY)); |
| 1001 | pdman.set3f(fParamUni, SkScalarToFloat(A), SkScalarToFloat(B), SkScalarToFloat(C)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1002 | |
| 1003 | fCachedCenterX = centerX; |
| 1004 | fCachedCenterY = centerY; |
| 1005 | fCachedA = A; |
| 1006 | fCachedB = B; |
| 1007 | fCachedC = C; |
| 1008 | } |
| 1009 | } |
| 1010 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1011 | void GLCircleInside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1012 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1013 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1014 | } |
| 1015 | |
| 1016 | ////////////////////////////////////////////////////////////////////////////// |
| 1017 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1018 | class CircleOutside2PtConicalEffect : public GrGradientEffect { |
| 1019 | public: |
| 1020 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1021 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 1022 | const SkTwoPointConicalGradient& shader, |
| 1023 | const SkMatrix& matrix, |
| 1024 | SkShader::TileMode tm, |
| 1025 | const CircleConicalInfo& info) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1026 | return new CircleOutside2PtConicalEffect(ctx, shader, matrix, tm, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1027 | } |
| 1028 | |
| 1029 | virtual ~CircleOutside2PtConicalEffect() {} |
| 1030 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1031 | const char* name() const override { return "Two-Point Conical Gradient Outside"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1032 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1033 | SkScalar centerX() const { return fInfo.fCenterEnd.fX; } |
| 1034 | SkScalar centerY() const { return fInfo.fCenterEnd.fY; } |
| 1035 | SkScalar A() const { return fInfo.fA; } |
| 1036 | SkScalar B() const { return fInfo.fB; } |
| 1037 | SkScalar C() const { return fInfo.fC; } |
| 1038 | SkScalar tLimit() const { return fTLimit; } |
| 1039 | bool isFlipped() const { return fIsFlipped; } |
| 1040 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1041 | private: |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1042 | GrGLFragmentProcessor* onCreateGLInstance() const override; |
| 1043 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 1044 | void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
| 1045 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1046 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1047 | const CircleOutside2PtConicalEffect& s = sBase.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1048 | return (INHERITED::onIsEqual(sBase) && |
| 1049 | this->fInfo.fCenterEnd == s.fInfo.fCenterEnd && |
| 1050 | this->fInfo.fA == s.fInfo.fA && |
| 1051 | this->fInfo.fB == s.fInfo.fB && |
| 1052 | this->fInfo.fC == s.fInfo.fC && |
| 1053 | this->fTLimit == s.fTLimit && |
| 1054 | this->fIsFlipped == s.fIsFlipped); |
| 1055 | } |
| 1056 | |
| 1057 | CircleOutside2PtConicalEffect(GrContext* ctx, |
| 1058 | const SkTwoPointConicalGradient& shader, |
| 1059 | const SkMatrix& matrix, |
| 1060 | SkShader::TileMode tm, |
| 1061 | const CircleConicalInfo& info) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1062 | : INHERITED(ctx, shader, matrix, tm), fInfo(info) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1063 | this->initClassID<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1064 | if (shader.getStartRadius() != shader.getEndRadius()) { |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 1065 | fTLimit = shader.getStartRadius() / (shader.getStartRadius() - shader.getEndRadius()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1066 | } else { |
| 1067 | fTLimit = SK_ScalarMin; |
| 1068 | } |
| 1069 | |
| 1070 | fIsFlipped = shader.isFlippedGrad(); |
| 1071 | } |
| 1072 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1073 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1074 | |
| 1075 | const CircleConicalInfo fInfo; |
| 1076 | SkScalar fTLimit; |
| 1077 | bool fIsFlipped; |
| 1078 | |
| 1079 | typedef GrGradientEffect INHERITED; |
| 1080 | }; |
| 1081 | |
| 1082 | class GLCircleOutside2PtConicalEffect : public GrGLGradientEffect { |
| 1083 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1084 | GLCircleOutside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1085 | virtual ~GLCircleOutside2PtConicalEffect() {} |
| 1086 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1087 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1088 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1089 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1090 | |
| 1091 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 1092 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1093 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1094 | UniformHandle fCenterUni; |
| 1095 | UniformHandle fParamUni; |
| 1096 | |
| 1097 | const char* fVSVaryingName; |
| 1098 | const char* fFSVaryingName; |
| 1099 | |
| 1100 | bool fIsFlipped; |
| 1101 | |
| 1102 | // @{ |
| 1103 | /// Values last uploaded as uniforms |
| 1104 | |
| 1105 | SkScalar fCachedCenterX; |
| 1106 | SkScalar fCachedCenterY; |
| 1107 | SkScalar fCachedA; |
| 1108 | SkScalar fCachedB; |
| 1109 | SkScalar fCachedC; |
| 1110 | SkScalar fCachedTLimit; |
| 1111 | |
| 1112 | // @} |
| 1113 | |
| 1114 | private: |
| 1115 | typedef GrGLGradientEffect INHERITED; |
| 1116 | |
| 1117 | }; |
| 1118 | |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 1119 | void CircleOutside2PtConicalEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1120 | GrProcessorKeyBuilder* b) const { |
| 1121 | GLCircleOutside2PtConicalEffect::GenKey(*this, caps, b); |
| 1122 | } |
| 1123 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1124 | GrGLFragmentProcessor* CircleOutside2PtConicalEffect::onCreateGLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1125 | return new GLCircleOutside2PtConicalEffect(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1126 | } |
| 1127 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1128 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircleOutside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1129 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 1130 | /* |
| 1131 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 1132 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1133 | const GrFragmentProcessor* CircleOutside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1134 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 1135 | SkScalar radius1 = d->fRandom->nextUScalar1() + 0.0001f; // make sure radius1 != 0 |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1136 | SkPoint center2; |
| 1137 | SkScalar radius2; |
| 1138 | SkScalar diffLen; |
| 1139 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1140 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1141 | // If the circles share a center than we can't be in the outside case |
| 1142 | } while (center1 == center2); |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 1143 | SkPoint diff = center2 - center1; |
| 1144 | diffLen = diff.length(); |
| 1145 | // Below makes sure that circle one is not contained within circle two |
| 1146 | // and have radius2 >= radius to match sorting on cpu side |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1147 | radius2 = radius1 + d->fRandom->nextRangeF(0.f, diffLen); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1148 | |
| 1149 | SkColor colors[kMaxRandomGradientColors]; |
| 1150 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 1151 | SkScalar* stops = stopsArray; |
| 1152 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1153 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1154 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 1155 | center2, radius2, |
| 1156 | colors, stops, colorCount, |
| 1157 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1158 | const GrFragmentProcessor* fp = shader->asFragmentProcessor( |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1159 | d->fContext,GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1160 | GrAlwaysAssert(fp); |
joshualitt | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 1161 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1162 | } |
| 1163 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1164 | GLCircleOutside2PtConicalEffect::GLCircleOutside2PtConicalEffect(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1165 | : fVSVaryingName(nullptr) |
| 1166 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1167 | , fCachedCenterX(SK_ScalarMax) |
| 1168 | , fCachedCenterY(SK_ScalarMax) |
| 1169 | , fCachedA(SK_ScalarMax) |
| 1170 | , fCachedB(SK_ScalarMax) |
| 1171 | , fCachedC(SK_ScalarMax) |
| 1172 | , fCachedTLimit(SK_ScalarMax) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1173 | const CircleOutside2PtConicalEffect& data = processor.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1174 | fIsFlipped = data.isFlipped(); |
| 1175 | } |
| 1176 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1177 | void GLCircleOutside2PtConicalEffect::emitCode(EmitArgs& args) { |
| 1178 | const CircleOutside2PtConicalEffect& ge = args.fFp.cast<CircleOutside2PtConicalEffect>(); |
| 1179 | this->emitUniforms(args.fBuilder, ge); |
| 1180 | fCenterUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1181 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 1182 | "Conical2FSCenter"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1183 | fParamUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 1184 | kVec4f_GrSLType, kDefault_GrSLPrecision, |
| 1185 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1186 | SkString tName("t"); |
| 1187 | |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 1188 | GrGLSLShaderVar center = args.fBuilder->getUniformVariable(fCenterUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1189 | // params.x = A |
| 1190 | // params.y = B |
| 1191 | // params.z = C |
egdaniel | 0d3f061 | 2015-10-21 10:45:48 -0700 | [diff] [blame] | 1192 | GrGLSLShaderVar params = args.fBuilder->getUniformVariable(fParamUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1193 | |
| 1194 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1195 | GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); |
| 1196 | SkString coords2DString = fsBuilder->ensureFSCoords2D(args.fCoords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 1197 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1198 | |
| 1199 | // output will default to transparent black (we simply won't write anything |
| 1200 | // else to it if invalid, instead of discarding or returning prematurely) |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1201 | fsBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", args.fOutputColor); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1202 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1203 | // p = coords2D |
| 1204 | // e = center end |
| 1205 | // r = radius end |
| 1206 | // A = dot(e, e) - r^2 + 2 * r - 1 |
| 1207 | // B = (r -1) / A |
| 1208 | // C = 1 / A |
| 1209 | // d = dot(e, p) + B |
| 1210 | // t = d +/- sqrt(d^2 - A * dot(p, p) + C) |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1211 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1212 | fsBuilder->codeAppendf("\tfloat pDotp = dot(%s, %s);\n", coords2D, coords2D); |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1213 | fsBuilder->codeAppendf("\tfloat d = dot(%s, %s) + %s.y;\n", coords2D, center.c_str(), |
| 1214 | params.c_str()); |
| 1215 | fsBuilder->codeAppendf("\tfloat deter = d * d - %s.x * pDotp + %s.z;\n", params.c_str(), |
| 1216 | params.c_str()); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1217 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1218 | // Must check to see if we flipped the circle order (to make sure start radius < end radius) |
| 1219 | // If so we must also flip sign on sqrt |
| 1220 | if (!fIsFlipped) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1221 | 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] | 1222 | } else { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1223 | 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] | 1224 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1225 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1226 | fsBuilder->codeAppendf("\tif (%s >= %s.w && deter >= 0.0) {\n", tName.c_str(), params.c_str()); |
| 1227 | fsBuilder->codeAppend("\t\t"); |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1228 | this->emitColor(args.fBuilder, ge, tName.c_str(), args.fOutputColor, args.fInputColor, |
| 1229 | args.fSamplers); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1230 | fsBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1231 | } |
| 1232 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame^] | 1233 | void GLCircleOutside2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 1234 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1235 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1236 | const CircleOutside2PtConicalEffect& data = processor.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | 44d83c1 | 2014-04-21 13:10:25 +0000 | [diff] [blame] | 1237 | SkASSERT(data.isFlipped() == fIsFlipped); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1238 | SkScalar centerX = data.centerX(); |
| 1239 | SkScalar centerY = data.centerY(); |
| 1240 | SkScalar A = data.A(); |
| 1241 | SkScalar B = data.B(); |
| 1242 | SkScalar C = data.C(); |
| 1243 | SkScalar tLimit = data.tLimit(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1244 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1245 | if (fCachedCenterX != centerX || fCachedCenterY != centerY || |
| 1246 | fCachedA != A || fCachedB != B || fCachedC != C || fCachedTLimit != tLimit) { |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1247 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1248 | pdman.set2f(fCenterUni, SkScalarToFloat(centerX), SkScalarToFloat(centerY)); |
| 1249 | pdman.set4f(fParamUni, SkScalarToFloat(A), SkScalarToFloat(B), SkScalarToFloat(C), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1250 | SkScalarToFloat(tLimit)); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1251 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1252 | fCachedCenterX = centerX; |
| 1253 | fCachedCenterY = centerY; |
| 1254 | fCachedA = A; |
| 1255 | fCachedB = B; |
| 1256 | fCachedC = C; |
| 1257 | fCachedTLimit = tLimit; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1258 | } |
| 1259 | } |
| 1260 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1261 | void GLCircleOutside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1262 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 1263 | uint32_t* key = b->add32n(2); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1264 | key[0] = GenBaseGradientKey(processor); |
| 1265 | key[1] = processor.cast<CircleOutside2PtConicalEffect>().isFlipped(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1266 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1267 | |
| 1268 | ////////////////////////////////////////////////////////////////////////////// |
| 1269 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1270 | GrFragmentProcessor* Gr2PtConicalGradientEffect::Create(GrContext* ctx, |
| 1271 | const SkTwoPointConicalGradient& shader, |
| 1272 | SkShader::TileMode tm, |
| 1273 | const SkMatrix* localMatrix) { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1274 | SkMatrix matrix; |
| 1275 | if (!shader.getLocalMatrix().invert(&matrix)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1276 | return nullptr; |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1277 | } |
commit-bot@chromium.org | 96fb748 | 2014-05-09 20:28:11 +0000 | [diff] [blame] | 1278 | if (localMatrix) { |
| 1279 | SkMatrix inv; |
| 1280 | if (!localMatrix->invert(&inv)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1281 | return nullptr; |
commit-bot@chromium.org | 96fb748 | 2014-05-09 20:28:11 +0000 | [diff] [blame] | 1282 | } |
| 1283 | matrix.postConcat(inv); |
| 1284 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1285 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1286 | if (shader.getStartRadius() < kErrorTol) { |
| 1287 | SkScalar focalX; |
| 1288 | ConicalType type = set_matrix_focal_conical(shader, &matrix, &focalX); |
| 1289 | if (type == kInside_ConicalType) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1290 | return FocalInside2PtConicalEffect::Create(ctx, shader, matrix, tm, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1291 | } else if(type == kEdge_ConicalType) { |
| 1292 | set_matrix_edge_conical(shader, &matrix); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1293 | return Edge2PtConicalEffect::Create(ctx, shader, matrix, tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1294 | } else { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1295 | return FocalOutside2PtConicalEffect::Create(ctx, shader, matrix, tm, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1296 | } |
| 1297 | } |
| 1298 | |
| 1299 | CircleConicalInfo info; |
| 1300 | ConicalType type = set_matrix_circle_conical(shader, &matrix, &info); |
| 1301 | |
| 1302 | if (type == kInside_ConicalType) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1303 | return CircleInside2PtConicalEffect::Create(ctx, shader, matrix, tm, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1304 | } else if (type == kEdge_ConicalType) { |
| 1305 | set_matrix_edge_conical(shader, &matrix); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1306 | return Edge2PtConicalEffect::Create(ctx, shader, matrix, tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1307 | } else { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1308 | return CircleOutside2PtConicalEffect::Create(ctx, shader, matrix, tm, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1309 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1310 | } |
| 1311 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1312 | #endif |