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 |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 14 | #include "GrCoordTransform.h" |
| 15 | #include "GrInvariantOutput.h" |
joshualitt | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 16 | #include "GrPaint.h" |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame] | 17 | #include "glsl/GrGLSLFragmentShaderBuilder.h" |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 18 | #include "glsl/GrGLSLProgramDataManager.h" |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 19 | #include "glsl/GrGLSLUniformHandler.h" |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 20 | // For brevity |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 21 | typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 22 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 23 | static const SkScalar kErrorTol = 0.00001f; |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 24 | static const SkScalar kEdgeErrorTol = 5.f * kErrorTol; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 25 | |
| 26 | /** |
| 27 | * We have three general cases for 2pt conical gradients. First we always assume that |
| 28 | * the start radius <= end radius. Our first case (kInside_) is when the start circle |
| 29 | * is completely enclosed by the end circle. The second case (kOutside_) is the case |
| 30 | * when the start circle is either completely outside the end circle or the circles |
| 31 | * overlap. The final case (kEdge_) is when the start circle is inside the end one, |
| 32 | * but the two are just barely touching at 1 point along their edges. |
| 33 | */ |
| 34 | enum ConicalType { |
| 35 | kInside_ConicalType, |
| 36 | kOutside_ConicalType, |
| 37 | kEdge_ConicalType, |
| 38 | }; |
| 39 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 40 | ////////////////////////////////////////////////////////////////////////////// |
| 41 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 42 | static void set_matrix_edge_conical(const SkTwoPointConicalGradient& shader, |
| 43 | SkMatrix* invLMatrix) { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 44 | // Inverse of the current local matrix is passed in then, |
| 45 | // translate to center1, rotate so center2 is on x axis. |
| 46 | const SkPoint& center1 = shader.getStartCenter(); |
| 47 | const SkPoint& center2 = shader.getEndCenter(); |
| 48 | |
| 49 | invLMatrix->postTranslate(-center1.fX, -center1.fY); |
| 50 | |
| 51 | SkPoint diff = center2 - center1; |
| 52 | SkScalar diffLen = diff.length(); |
| 53 | if (0 != diffLen) { |
| 54 | SkScalar invDiffLen = SkScalarInvert(diffLen); |
| 55 | SkMatrix rot; |
| 56 | rot.setSinCos(-SkScalarMul(invDiffLen, diff.fY), |
| 57 | SkScalarMul(invDiffLen, diff.fX)); |
| 58 | invLMatrix->postConcat(rot); |
| 59 | } |
| 60 | } |
| 61 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 62 | class Edge2PtConicalEffect : public GrGradientEffect { |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 63 | public: |
| 64 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 65 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 66 | const SkTwoPointConicalGradient& shader, |
| 67 | const SkMatrix& matrix, |
| 68 | SkShader::TileMode tm) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 69 | return new Edge2PtConicalEffect(ctx, shader, matrix, tm); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 70 | } |
| 71 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 72 | virtual ~Edge2PtConicalEffect() {} |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 73 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 74 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 75 | return "Two-Point Conical Gradient Edge Touching"; |
| 76 | } |
| 77 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 78 | // 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] | 79 | SkScalar center() const { return fCenterX1; } |
| 80 | SkScalar diffRadius() const { return fDiffRadius; } |
| 81 | SkScalar radius() const { return fRadius0; } |
| 82 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 83 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 84 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 85 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 86 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 87 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 88 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 89 | const Edge2PtConicalEffect& s = sBase.cast<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 90 | return (INHERITED::onIsEqual(sBase) && |
| 91 | this->fCenterX1 == s.fCenterX1 && |
| 92 | this->fRadius0 == s.fRadius0 && |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 93 | this->fDiffRadius == s.fDiffRadius); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 94 | } |
| 95 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 96 | Edge2PtConicalEffect(GrContext* ctx, |
| 97 | const SkTwoPointConicalGradient& shader, |
| 98 | const SkMatrix& matrix, |
| 99 | SkShader::TileMode tm) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 100 | : INHERITED(ctx, shader, matrix, tm), |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 101 | fCenterX1(shader.getCenterX1()), |
| 102 | fRadius0(shader.getStartRadius()), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 103 | fDiffRadius(shader.getDiffRadius()){ |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 104 | this->initClassID<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 105 | // 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] | 106 | // 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] | 107 | // start radius was close to zero, otherwise we scaled by the start radius. In addition |
| 108 | // Our test for the edge case in set_matrix_circle_conical has a higher tolerance so we |
| 109 | // need the sqrt value below |
| 110 | SkASSERT(SkScalarAbs(SkScalarAbs(fDiffRadius) - fCenterX1) < |
| 111 | (fRadius0 < kErrorTol ? shader.getEndRadius() * kEdgeErrorTol : |
| 112 | fRadius0 * sqrt(kEdgeErrorTol))); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 113 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 114 | // We pass the linear part of the quadratic as a varying. |
| 115 | // float b = -2.0 * (fCenterX1 * x + fRadius0 * fDiffRadius * z) |
| 116 | fBTransform = this->getCoordTransform(); |
| 117 | SkMatrix& bMatrix = *fBTransform.accessMatrix(); |
| 118 | SkScalar r0dr = SkScalarMul(fRadius0, fDiffRadius); |
| 119 | bMatrix[SkMatrix::kMScaleX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMScaleX]) + |
| 120 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp0])); |
| 121 | bMatrix[SkMatrix::kMSkewX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMSkewX]) + |
| 122 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp1])); |
| 123 | bMatrix[SkMatrix::kMTransX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMTransX]) + |
| 124 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp2])); |
| 125 | this->addCoordTransform(&fBTransform); |
| 126 | } |
| 127 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 128 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 129 | |
| 130 | // @{ |
| 131 | // Cache of values - these can change arbitrarily, EXCEPT |
| 132 | // we shouldn't change between degenerate and non-degenerate?! |
| 133 | |
| 134 | GrCoordTransform fBTransform; |
| 135 | SkScalar fCenterX1; |
| 136 | SkScalar fRadius0; |
| 137 | SkScalar fDiffRadius; |
| 138 | |
| 139 | // @} |
| 140 | |
| 141 | typedef GrGradientEffect INHERITED; |
| 142 | }; |
| 143 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 144 | class GLEdge2PtConicalEffect : public GrGLGradientEffect { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 145 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 146 | GLEdge2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 147 | virtual ~GLEdge2PtConicalEffect() { } |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 148 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 149 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 150 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 151 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 152 | |
| 153 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 154 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 155 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 156 | UniformHandle fParamUni; |
| 157 | |
| 158 | const char* fVSVaryingName; |
| 159 | const char* fFSVaryingName; |
| 160 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 161 | // @{ |
| 162 | /// Values last uploaded as uniforms |
| 163 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 164 | SkScalar fCachedRadius; |
| 165 | SkScalar fCachedDiffRadius; |
| 166 | |
| 167 | // @} |
| 168 | |
| 169 | private: |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 170 | typedef GrGLGradientEffect INHERITED; |
| 171 | |
| 172 | }; |
| 173 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 174 | void Edge2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 175 | GrProcessorKeyBuilder* b) const { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 176 | GLEdge2PtConicalEffect::GenKey(*this, caps, b); |
| 177 | } |
| 178 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 179 | GrGLSLFragmentProcessor* Edge2PtConicalEffect::onCreateGLSLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 180 | return new GLEdge2PtConicalEffect(*this); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 181 | } |
skia.committer@gmail.com | 221b911 | 2014-04-04 03:04:32 +0000 | [diff] [blame] | 182 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 183 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(Edge2PtConicalEffect); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 184 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 185 | /* |
| 186 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 187 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 188 | const GrFragmentProcessor* Edge2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 189 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 190 | SkScalar radius1 = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 191 | SkPoint center2; |
| 192 | SkScalar radius2; |
| 193 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 194 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 195 | // If the circles are identical the factory will give us an empty shader. |
| 196 | // This will happen if we pick identical centers |
| 197 | } while (center1 == center2); |
| 198 | |
| 199 | // Below makes sure that circle one is contained within circle two |
| 200 | // and both circles are touching on an edge |
| 201 | SkPoint diff = center2 - center1; |
| 202 | SkScalar diffLen = diff.length(); |
| 203 | radius2 = radius1 + diffLen; |
| 204 | |
| 205 | SkColor colors[kMaxRandomGradientColors]; |
| 206 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 207 | SkScalar* stops = stopsArray; |
| 208 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 209 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 210 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 211 | center2, radius2, |
| 212 | colors, stops, colorCount, |
| 213 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 214 | const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 215 | GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 216 | GrAlwaysAssert(fp); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 217 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 218 | } |
| 219 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 220 | GLEdge2PtConicalEffect::GLEdge2PtConicalEffect(const GrProcessor&) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 221 | : fVSVaryingName(nullptr) |
| 222 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 223 | , fCachedRadius(-SK_ScalarMax) |
| 224 | , fCachedDiffRadius(-SK_ScalarMax) {} |
| 225 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 226 | void GLEdge2PtConicalEffect::emitCode(EmitArgs& args) { |
| 227 | const Edge2PtConicalEffect& ge = args.fFp.cast<Edge2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 228 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 229 | this->emitUniforms(uniformHandler, ge); |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame^] | 230 | fParamUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
| 231 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 232 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 233 | |
| 234 | SkString cName("c"); |
| 235 | SkString tName("t"); |
| 236 | SkString p0; // start radius |
| 237 | SkString p1; // start radius squared |
| 238 | SkString p2; // difference in radii (r1 - r0) |
| 239 | |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame^] | 240 | |
| 241 | p0.appendf("%s.x", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
| 242 | p1.appendf("%s.y", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
| 243 | p2.appendf("%s.z", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 244 | |
| 245 | // We interpolate the linear component in coords[1]. |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 246 | SkASSERT(args.fCoords[0].getType() == args.fCoords[1].getType()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 247 | const char* coords2D; |
| 248 | SkString bVar; |
cdalton | 8528541 | 2016-02-18 12:37:07 -0800 | [diff] [blame] | 249 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 250 | if (kVec3f_GrSLType == args.fCoords[0].getType()) { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 251 | fragBuilder->codeAppendf("\tvec3 interpolants = vec3(%s.xy / %s.z, %s.x / %s.z);\n", |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 252 | args.fCoords[0].c_str(), args.fCoords[0].c_str(), |
| 253 | args.fCoords[1].c_str(), args.fCoords[1].c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 254 | coords2D = "interpolants.xy"; |
| 255 | bVar = "interpolants.z"; |
| 256 | } else { |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 257 | coords2D = args.fCoords[0].c_str(); |
| 258 | bVar.printf("%s.x", args.fCoords[1].c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 259 | } |
| 260 | |
| 261 | // output will default to transparent black (we simply won't write anything |
| 262 | // else to it if invalid, instead of discarding or returning prematurely) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 263 | fragBuilder->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] | 264 | |
| 265 | // c = (x^2)+(y^2) - params[1] |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 266 | fragBuilder->codeAppendf("\tfloat %s = dot(%s, %s) - %s;\n", |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 267 | cName.c_str(), coords2D, coords2D, p1.c_str()); |
| 268 | |
| 269 | // linear case: t = -c/b |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 270 | fragBuilder->codeAppendf("\tfloat %s = -(%s / %s);\n", tName.c_str(), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 271 | cName.c_str(), bVar.c_str()); |
| 272 | |
| 273 | // if r(t) > 0, then t will be the x coordinate |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 274 | fragBuilder->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] | 275 | p2.c_str(), p0.c_str()); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 276 | fragBuilder->codeAppend("\t"); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 277 | this->emitColor(fragBuilder, |
| 278 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 279 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 280 | ge, |
| 281 | tName.c_str(), |
| 282 | args.fOutputColor, |
| 283 | args.fInputColor, |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 284 | args.fSamplers); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 285 | fragBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 286 | } |
| 287 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 288 | void GLEdge2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 289 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 290 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 291 | const Edge2PtConicalEffect& data = processor.cast<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 292 | SkScalar radius0 = data.radius(); |
| 293 | SkScalar diffRadius = data.diffRadius(); |
| 294 | |
| 295 | if (fCachedRadius != radius0 || |
| 296 | fCachedDiffRadius != diffRadius) { |
| 297 | |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame^] | 298 | pdman.set3f(fParamUni, SkScalarToFloat(radius0), |
| 299 | SkScalarToFloat(SkScalarMul(radius0, radius0)), SkScalarToFloat(diffRadius)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 300 | fCachedRadius = radius0; |
| 301 | fCachedDiffRadius = diffRadius; |
| 302 | } |
| 303 | } |
| 304 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 305 | void GLEdge2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 306 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 307 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | ////////////////////////////////////////////////////////////////////////////// |
| 311 | // Focal Conical Gradients |
| 312 | ////////////////////////////////////////////////////////////////////////////// |
| 313 | |
| 314 | static ConicalType set_matrix_focal_conical(const SkTwoPointConicalGradient& shader, |
| 315 | SkMatrix* invLMatrix, SkScalar* focalX) { |
| 316 | // Inverse of the current local matrix is passed in then, |
| 317 | // translate, scale, and rotate such that endCircle is unit circle on x-axis, |
| 318 | // and focal point is at the origin. |
| 319 | ConicalType conicalType; |
| 320 | const SkPoint& focal = shader.getStartCenter(); |
| 321 | const SkPoint& centerEnd = shader.getEndCenter(); |
| 322 | SkScalar radius = shader.getEndRadius(); |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 323 | SkScalar invRadius = 1.f / radius; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 324 | |
| 325 | SkMatrix matrix; |
| 326 | |
| 327 | matrix.setTranslate(-centerEnd.fX, -centerEnd.fY); |
| 328 | matrix.postScale(invRadius, invRadius); |
| 329 | |
| 330 | SkPoint focalTrans; |
| 331 | matrix.mapPoints(&focalTrans, &focal, 1); |
| 332 | *focalX = focalTrans.length(); |
| 333 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 334 | if (0.f != *focalX) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 335 | SkScalar invFocalX = SkScalarInvert(*focalX); |
| 336 | SkMatrix rot; |
| 337 | rot.setSinCos(-SkScalarMul(invFocalX, focalTrans.fY), |
| 338 | SkScalarMul(invFocalX, focalTrans.fX)); |
| 339 | matrix.postConcat(rot); |
| 340 | } |
| 341 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 342 | matrix.postTranslate(-(*focalX), 0.f); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 343 | |
| 344 | // If the focal point is touching the edge of the circle it will |
| 345 | // cause a degenerate case that must be handled separately |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 346 | // kEdgeErrorTol = 5 * kErrorTol was picked after manual testing the |
| 347 | // stability trade off versus the linear approx used in the Edge Shader |
| 348 | if (SkScalarAbs(1.f - (*focalX)) < kEdgeErrorTol) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 349 | return kEdge_ConicalType; |
| 350 | } |
| 351 | |
| 352 | // Scale factor 1 / (1 - focalX * focalX) |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 353 | SkScalar oneMinusF2 = 1.f - SkScalarMul(*focalX, *focalX); |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 354 | SkScalar s = SkScalarInvert(oneMinusF2); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 355 | |
| 356 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 357 | if (s >= 0.f) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 358 | conicalType = kInside_ConicalType; |
| 359 | matrix.postScale(s, s * SkScalarSqrt(oneMinusF2)); |
| 360 | } else { |
| 361 | conicalType = kOutside_ConicalType; |
| 362 | matrix.postScale(s, s); |
| 363 | } |
| 364 | |
| 365 | invLMatrix->postConcat(matrix); |
| 366 | |
| 367 | return conicalType; |
| 368 | } |
| 369 | |
| 370 | ////////////////////////////////////////////////////////////////////////////// |
| 371 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 372 | class FocalOutside2PtConicalEffect : public GrGradientEffect { |
| 373 | public: |
| 374 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 375 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 376 | const SkTwoPointConicalGradient& shader, |
| 377 | const SkMatrix& matrix, |
| 378 | SkShader::TileMode tm, |
| 379 | SkScalar focalX) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 380 | return new FocalOutside2PtConicalEffect(ctx, shader, matrix, tm, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | virtual ~FocalOutside2PtConicalEffect() { } |
| 384 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 385 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 386 | return "Two-Point Conical Gradient Focal Outside"; |
| 387 | } |
| 388 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 389 | bool isFlipped() const { return fIsFlipped; } |
| 390 | SkScalar focal() const { return fFocalX; } |
| 391 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 392 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 393 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 394 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 395 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 396 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 397 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 398 | const FocalOutside2PtConicalEffect& s = sBase.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 399 | return (INHERITED::onIsEqual(sBase) && |
| 400 | this->fFocalX == s.fFocalX && |
| 401 | this->fIsFlipped == s.fIsFlipped); |
| 402 | } |
| 403 | |
| 404 | FocalOutside2PtConicalEffect(GrContext* ctx, |
| 405 | const SkTwoPointConicalGradient& shader, |
| 406 | const SkMatrix& matrix, |
| 407 | SkShader::TileMode tm, |
| 408 | SkScalar focalX) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 409 | : INHERITED(ctx, shader, matrix, tm) |
joshualitt | b245605 | 2015-07-08 09:36:59 -0700 | [diff] [blame] | 410 | , fFocalX(focalX) |
| 411 | , fIsFlipped(shader.isFlippedGrad()) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 412 | this->initClassID<FocalOutside2PtConicalEffect>(); |
| 413 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 414 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 415 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 416 | |
| 417 | SkScalar fFocalX; |
| 418 | bool fIsFlipped; |
| 419 | |
| 420 | typedef GrGradientEffect INHERITED; |
| 421 | }; |
| 422 | |
| 423 | class GLFocalOutside2PtConicalEffect : public GrGLGradientEffect { |
| 424 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 425 | GLFocalOutside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 426 | virtual ~GLFocalOutside2PtConicalEffect() { } |
| 427 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 428 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 429 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 430 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 431 | |
| 432 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 433 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 434 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 435 | UniformHandle fParamUni; |
| 436 | |
| 437 | const char* fVSVaryingName; |
| 438 | const char* fFSVaryingName; |
| 439 | |
| 440 | bool fIsFlipped; |
| 441 | |
| 442 | // @{ |
| 443 | /// Values last uploaded as uniforms |
| 444 | |
| 445 | SkScalar fCachedFocal; |
| 446 | |
| 447 | // @} |
| 448 | |
| 449 | private: |
| 450 | typedef GrGLGradientEffect INHERITED; |
| 451 | |
| 452 | }; |
| 453 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 454 | void FocalOutside2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 455 | GrProcessorKeyBuilder* b) const { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 456 | GLFocalOutside2PtConicalEffect::GenKey(*this, caps, b); |
| 457 | } |
| 458 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 459 | GrGLSLFragmentProcessor* FocalOutside2PtConicalEffect::onCreateGLSLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 460 | return new GLFocalOutside2PtConicalEffect(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 461 | } |
| 462 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 463 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(FocalOutside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 464 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 465 | /* |
| 466 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 467 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 468 | const GrFragmentProcessor* FocalOutside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 469 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 470 | SkScalar radius1 = 0.f; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 471 | SkPoint center2; |
| 472 | SkScalar radius2; |
| 473 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 474 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 475 | // 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] | 476 | } while (center1 == center2); |
| 477 | SkPoint diff = center2 - center1; |
| 478 | SkScalar diffLen = diff.length(); |
| 479 | // Below makes sure that the focal point is not contained within circle two |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 480 | radius2 = d->fRandom->nextRangeF(0.f, diffLen); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 481 | |
| 482 | SkColor colors[kMaxRandomGradientColors]; |
| 483 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 484 | SkScalar* stops = stopsArray; |
| 485 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 486 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 487 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 488 | center2, radius2, |
| 489 | colors, stops, colorCount, |
| 490 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 491 | const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 492 | GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 493 | GrAlwaysAssert(fp); |
| 494 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 495 | } |
| 496 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 497 | GLFocalOutside2PtConicalEffect::GLFocalOutside2PtConicalEffect(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 498 | : fVSVaryingName(nullptr) |
| 499 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 500 | , fCachedFocal(SK_ScalarMax) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 501 | const FocalOutside2PtConicalEffect& data = processor.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 502 | fIsFlipped = data.isFlipped(); |
| 503 | } |
| 504 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 505 | void GLFocalOutside2PtConicalEffect::emitCode(EmitArgs& args) { |
| 506 | const FocalOutside2PtConicalEffect& ge = args.fFp.cast<FocalOutside2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 507 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 508 | this->emitUniforms(uniformHandler, ge); |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame^] | 509 | fParamUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
| 510 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 511 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 512 | SkString tName("t"); |
| 513 | SkString p0; // focalX |
| 514 | SkString p1; // 1 - focalX * focalX |
| 515 | |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame^] | 516 | p0.appendf("%s.x", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
| 517 | p1.appendf("%s.y", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 518 | |
| 519 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
cdalton | 8528541 | 2016-02-18 12:37:07 -0800 | [diff] [blame] | 520 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 521 | SkString coords2DString = fragBuilder->ensureFSCoords2D(args.fCoords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 522 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 523 | |
| 524 | // t = p.x * focal.x +/- sqrt(p.x^2 + (1 - focal.x^2) * p.y^2) |
| 525 | |
| 526 | // output will default to transparent black (we simply won't write anything |
| 527 | // else to it if invalid, instead of discarding or returning prematurely) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 528 | fragBuilder->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] | 529 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 530 | fragBuilder->codeAppendf("\tfloat xs = %s.x * %s.x;\n", coords2D, coords2D); |
| 531 | fragBuilder->codeAppendf("\tfloat ys = %s.y * %s.y;\n", coords2D, coords2D); |
| 532 | fragBuilder->codeAppendf("\tfloat d = xs + %s * ys;\n", p1.c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 533 | |
| 534 | // Must check to see if we flipped the circle order (to make sure start radius < end radius) |
| 535 | // If so we must also flip sign on sqrt |
| 536 | if (!fIsFlipped) { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 537 | fragBuilder->codeAppendf("\tfloat %s = %s.x * %s + sqrt(d);\n", tName.c_str(), |
| 538 | coords2D, p0.c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 539 | } else { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 540 | fragBuilder->codeAppendf("\tfloat %s = %s.x * %s - sqrt(d);\n", tName.c_str(), |
| 541 | coords2D, p0.c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 542 | } |
| 543 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 544 | fragBuilder->codeAppendf("\tif (%s >= 0.0 && d >= 0.0) {\n", tName.c_str()); |
| 545 | fragBuilder->codeAppend("\t\t"); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 546 | this->emitColor(fragBuilder, |
| 547 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 548 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 549 | ge, |
| 550 | tName.c_str(), |
| 551 | args.fOutputColor, |
| 552 | args.fInputColor, |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 553 | args.fSamplers); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 554 | fragBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 555 | } |
| 556 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 557 | void GLFocalOutside2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 558 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 559 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 560 | const FocalOutside2PtConicalEffect& data = processor.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 561 | SkASSERT(data.isFlipped() == fIsFlipped); |
| 562 | SkScalar focal = data.focal(); |
| 563 | |
| 564 | if (fCachedFocal != focal) { |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 565 | SkScalar oneMinus2F = 1.f - SkScalarMul(focal, focal); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 566 | |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame^] | 567 | pdman.set2f(fParamUni, SkScalarToFloat(focal), SkScalarToFloat(oneMinus2F)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 568 | fCachedFocal = focal; |
| 569 | } |
| 570 | } |
| 571 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 572 | void GLFocalOutside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 573 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 574 | uint32_t* key = b->add32n(2); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 575 | key[0] = GenBaseGradientKey(processor); |
| 576 | key[1] = processor.cast<FocalOutside2PtConicalEffect>().isFlipped(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 577 | } |
| 578 | |
| 579 | ////////////////////////////////////////////////////////////////////////////// |
| 580 | |
| 581 | class GLFocalInside2PtConicalEffect; |
| 582 | |
| 583 | class FocalInside2PtConicalEffect : public GrGradientEffect { |
| 584 | public: |
| 585 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 586 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 587 | const SkTwoPointConicalGradient& shader, |
| 588 | const SkMatrix& matrix, |
| 589 | SkShader::TileMode tm, |
| 590 | SkScalar focalX) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 591 | return new FocalInside2PtConicalEffect(ctx, shader, matrix, tm, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 592 | } |
| 593 | |
| 594 | virtual ~FocalInside2PtConicalEffect() {} |
| 595 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 596 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 597 | return "Two-Point Conical Gradient Focal Inside"; |
| 598 | } |
| 599 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 600 | SkScalar focal() const { return fFocalX; } |
| 601 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 602 | typedef GLFocalInside2PtConicalEffect GLSLProcessor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 603 | |
| 604 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 605 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 606 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 607 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 608 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 609 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 610 | const FocalInside2PtConicalEffect& s = sBase.cast<FocalInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 611 | return (INHERITED::onIsEqual(sBase) && |
| 612 | this->fFocalX == s.fFocalX); |
| 613 | } |
| 614 | |
| 615 | FocalInside2PtConicalEffect(GrContext* ctx, |
| 616 | const SkTwoPointConicalGradient& shader, |
| 617 | const SkMatrix& matrix, |
| 618 | SkShader::TileMode tm, |
| 619 | SkScalar focalX) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 620 | : INHERITED(ctx, shader, matrix, tm), fFocalX(focalX) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 621 | this->initClassID<FocalInside2PtConicalEffect>(); |
| 622 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 623 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 624 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 625 | |
| 626 | SkScalar fFocalX; |
| 627 | |
| 628 | typedef GrGradientEffect INHERITED; |
| 629 | }; |
| 630 | |
| 631 | class GLFocalInside2PtConicalEffect : public GrGLGradientEffect { |
| 632 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 633 | GLFocalInside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 634 | virtual ~GLFocalInside2PtConicalEffect() {} |
| 635 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 636 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 637 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 638 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 639 | |
| 640 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 641 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 642 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 643 | UniformHandle fFocalUni; |
| 644 | |
| 645 | const char* fVSVaryingName; |
| 646 | const char* fFSVaryingName; |
| 647 | |
| 648 | // @{ |
| 649 | /// Values last uploaded as uniforms |
| 650 | |
| 651 | SkScalar fCachedFocal; |
| 652 | |
| 653 | // @} |
| 654 | |
| 655 | private: |
| 656 | typedef GrGLGradientEffect INHERITED; |
| 657 | |
| 658 | }; |
| 659 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 660 | void FocalInside2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 661 | GrProcessorKeyBuilder* b) const { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 662 | GLFocalInside2PtConicalEffect::GenKey(*this, caps, b); |
| 663 | } |
| 664 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 665 | GrGLSLFragmentProcessor* FocalInside2PtConicalEffect::onCreateGLSLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 666 | return new GLFocalInside2PtConicalEffect(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 667 | } |
| 668 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 669 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(FocalInside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 670 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 671 | /* |
| 672 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 673 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 674 | const GrFragmentProcessor* FocalInside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 675 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 676 | SkScalar radius1 = 0.f; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 677 | SkPoint center2; |
| 678 | SkScalar radius2; |
| 679 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 680 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 681 | // Below makes sure radius2 is larger enouch such that the focal point |
| 682 | // is inside the end circle |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 683 | SkScalar increase = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 684 | SkPoint diff = center2 - center1; |
| 685 | SkScalar diffLen = diff.length(); |
| 686 | radius2 = diffLen + increase; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 687 | // If the circles are identical the factory will give us an empty shader. |
| 688 | } while (radius1 == radius2 && center1 == center2); |
| 689 | |
| 690 | SkColor colors[kMaxRandomGradientColors]; |
| 691 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 692 | SkScalar* stops = stopsArray; |
| 693 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 694 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 695 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 696 | center2, radius2, |
| 697 | colors, stops, colorCount, |
| 698 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 699 | const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 700 | GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 701 | GrAlwaysAssert(fp); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 702 | return fp; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 703 | } |
| 704 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 705 | GLFocalInside2PtConicalEffect::GLFocalInside2PtConicalEffect(const GrProcessor&) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 706 | : fVSVaryingName(nullptr) |
| 707 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 708 | , fCachedFocal(SK_ScalarMax) {} |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 709 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 710 | void GLFocalInside2PtConicalEffect::emitCode(EmitArgs& args) { |
| 711 | const FocalInside2PtConicalEffect& ge = args.fFp.cast<FocalInside2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 712 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 713 | this->emitUniforms(uniformHandler, ge); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 714 | fFocalUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 715 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 716 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 717 | SkString tName("t"); |
| 718 | |
| 719 | // this is the distance along x-axis from the end center to focal point in |
| 720 | // transformed coordinates |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 721 | GrGLSLShaderVar focal = uniformHandler->getUniformVariable(fFocalUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 722 | |
| 723 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
cdalton | 8528541 | 2016-02-18 12:37:07 -0800 | [diff] [blame] | 724 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 725 | SkString coords2DString = fragBuilder->ensureFSCoords2D(args.fCoords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 726 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 727 | |
| 728 | // t = p.x * focalX + length(p) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 729 | fragBuilder->codeAppendf("\tfloat %s = %s.x * %s + length(%s);\n", tName.c_str(), |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 730 | coords2D, focal.c_str(), coords2D); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 731 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 732 | this->emitColor(fragBuilder, |
| 733 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 734 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 735 | ge, |
| 736 | tName.c_str(), |
| 737 | args.fOutputColor, |
| 738 | args.fInputColor, |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 739 | args.fSamplers); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 740 | } |
| 741 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 742 | void GLFocalInside2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 743 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 744 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 745 | const FocalInside2PtConicalEffect& data = processor.cast<FocalInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 746 | SkScalar focal = data.focal(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 747 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 748 | if (fCachedFocal != focal) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 749 | pdman.set1f(fFocalUni, SkScalarToFloat(focal)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 750 | fCachedFocal = focal; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 751 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 752 | } |
| 753 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 754 | void GLFocalInside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 755 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 756 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 757 | } |
| 758 | |
| 759 | ////////////////////////////////////////////////////////////////////////////// |
| 760 | // Circle Conical Gradients |
| 761 | ////////////////////////////////////////////////////////////////////////////// |
| 762 | |
| 763 | struct CircleConicalInfo { |
| 764 | SkPoint fCenterEnd; |
| 765 | SkScalar fA; |
| 766 | SkScalar fB; |
| 767 | SkScalar fC; |
| 768 | }; |
| 769 | |
| 770 | // Returns focal distance along x-axis in transformed coords |
| 771 | static ConicalType set_matrix_circle_conical(const SkTwoPointConicalGradient& shader, |
| 772 | SkMatrix* invLMatrix, CircleConicalInfo* info) { |
| 773 | // Inverse of the current local matrix is passed in then, |
| 774 | // translate and scale such that start circle is on the origin and has radius 1 |
| 775 | const SkPoint& centerStart = shader.getStartCenter(); |
| 776 | const SkPoint& centerEnd = shader.getEndCenter(); |
| 777 | SkScalar radiusStart = shader.getStartRadius(); |
| 778 | SkScalar radiusEnd = shader.getEndRadius(); |
| 779 | |
| 780 | SkMatrix matrix; |
| 781 | |
| 782 | matrix.setTranslate(-centerStart.fX, -centerStart.fY); |
| 783 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 784 | SkScalar invStartRad = 1.f / radiusStart; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 785 | matrix.postScale(invStartRad, invStartRad); |
| 786 | |
| 787 | radiusEnd /= radiusStart; |
| 788 | |
| 789 | SkPoint centerEndTrans; |
| 790 | matrix.mapPoints(¢erEndTrans, ¢erEnd, 1); |
| 791 | |
| 792 | SkScalar A = centerEndTrans.fX * centerEndTrans.fX + centerEndTrans.fY * centerEndTrans.fY |
| 793 | - radiusEnd * radiusEnd + 2 * radiusEnd - 1; |
| 794 | |
| 795 | // Check to see if start circle is inside end circle with edges touching. |
| 796 | // 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] | 797 | // to the edge shader. kEdgeErrorTol = 5 * kErrorTol was picked after manual testing |
| 798 | // so that C = 1 / A is stable, and the linear approximation used in the Edge shader is |
| 799 | // still accurate. |
| 800 | if (SkScalarAbs(A) < kEdgeErrorTol) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 801 | return kEdge_ConicalType; |
| 802 | } |
| 803 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 804 | SkScalar C = 1.f / A; |
| 805 | SkScalar B = (radiusEnd - 1.f) * C; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 806 | |
| 807 | matrix.postScale(C, C); |
| 808 | |
| 809 | invLMatrix->postConcat(matrix); |
| 810 | |
| 811 | info->fCenterEnd = centerEndTrans; |
| 812 | info->fA = A; |
| 813 | info->fB = B; |
| 814 | info->fC = C; |
| 815 | |
| 816 | // 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] | 817 | if (A < 0.f) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 818 | return kInside_ConicalType; |
| 819 | } |
| 820 | return kOutside_ConicalType; |
| 821 | } |
| 822 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 823 | class CircleInside2PtConicalEffect : public GrGradientEffect { |
| 824 | public: |
| 825 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 826 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 827 | const SkTwoPointConicalGradient& shader, |
| 828 | const SkMatrix& matrix, |
| 829 | SkShader::TileMode tm, |
| 830 | const CircleConicalInfo& info) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 831 | return new CircleInside2PtConicalEffect(ctx, shader, matrix, tm, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 832 | } |
| 833 | |
| 834 | virtual ~CircleInside2PtConicalEffect() {} |
| 835 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 836 | const char* name() const override { return "Two-Point Conical Gradient Inside"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 837 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 838 | SkScalar centerX() const { return fInfo.fCenterEnd.fX; } |
| 839 | SkScalar centerY() const { return fInfo.fCenterEnd.fY; } |
| 840 | SkScalar A() const { return fInfo.fA; } |
| 841 | SkScalar B() const { return fInfo.fB; } |
| 842 | SkScalar C() const { return fInfo.fC; } |
| 843 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 844 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 845 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 846 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 847 | virtual void onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 848 | GrProcessorKeyBuilder* b) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 849 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 850 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 851 | const CircleInside2PtConicalEffect& s = sBase.cast<CircleInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 852 | return (INHERITED::onIsEqual(sBase) && |
| 853 | this->fInfo.fCenterEnd == s.fInfo.fCenterEnd && |
| 854 | this->fInfo.fA == s.fInfo.fA && |
| 855 | this->fInfo.fB == s.fInfo.fB && |
| 856 | this->fInfo.fC == s.fInfo.fC); |
| 857 | } |
| 858 | |
| 859 | CircleInside2PtConicalEffect(GrContext* ctx, |
| 860 | const SkTwoPointConicalGradient& shader, |
| 861 | const SkMatrix& matrix, |
| 862 | SkShader::TileMode tm, |
| 863 | const CircleConicalInfo& info) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 864 | : INHERITED(ctx, shader, matrix, tm), fInfo(info) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 865 | this->initClassID<CircleInside2PtConicalEffect>(); |
| 866 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 867 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 868 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 869 | |
| 870 | const CircleConicalInfo fInfo; |
| 871 | |
| 872 | typedef GrGradientEffect INHERITED; |
| 873 | }; |
| 874 | |
| 875 | class GLCircleInside2PtConicalEffect : public GrGLGradientEffect { |
| 876 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 877 | GLCircleInside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 878 | virtual ~GLCircleInside2PtConicalEffect() {} |
| 879 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 880 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 881 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 882 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 883 | |
| 884 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 885 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 886 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 887 | UniformHandle fCenterUni; |
| 888 | UniformHandle fParamUni; |
| 889 | |
| 890 | const char* fVSVaryingName; |
| 891 | const char* fFSVaryingName; |
| 892 | |
| 893 | // @{ |
| 894 | /// Values last uploaded as uniforms |
| 895 | |
| 896 | SkScalar fCachedCenterX; |
| 897 | SkScalar fCachedCenterY; |
| 898 | SkScalar fCachedA; |
| 899 | SkScalar fCachedB; |
| 900 | SkScalar fCachedC; |
| 901 | |
| 902 | // @} |
| 903 | |
| 904 | private: |
| 905 | typedef GrGLGradientEffect INHERITED; |
| 906 | |
| 907 | }; |
| 908 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 909 | void CircleInside2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 910 | GrProcessorKeyBuilder* b) const { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 911 | GLCircleInside2PtConicalEffect::GenKey(*this, caps, b); |
| 912 | } |
| 913 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 914 | GrGLSLFragmentProcessor* CircleInside2PtConicalEffect::onCreateGLSLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 915 | return new GLCircleInside2PtConicalEffect(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 916 | } |
| 917 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 918 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircleInside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 919 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 920 | /* |
| 921 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 922 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 923 | const GrFragmentProcessor* CircleInside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 924 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 925 | 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] | 926 | SkPoint center2; |
| 927 | SkScalar radius2; |
| 928 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 929 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 930 | // Below makes sure that circle one is contained within circle two |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 931 | SkScalar increase = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 932 | SkPoint diff = center2 - center1; |
| 933 | SkScalar diffLen = diff.length(); |
| 934 | radius2 = radius1 + diffLen + increase; |
| 935 | // If the circles are identical the factory will give us an empty shader. |
| 936 | } while (radius1 == radius2 && center1 == center2); |
| 937 | |
| 938 | SkColor colors[kMaxRandomGradientColors]; |
| 939 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 940 | SkScalar* stops = stopsArray; |
| 941 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 942 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 943 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 944 | center2, radius2, |
| 945 | colors, stops, colorCount, |
| 946 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 947 | const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 948 | GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 949 | GrAlwaysAssert(fp); |
joshualitt | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 950 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 951 | } |
| 952 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 953 | GLCircleInside2PtConicalEffect::GLCircleInside2PtConicalEffect(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 954 | : fVSVaryingName(nullptr) |
| 955 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 956 | , fCachedCenterX(SK_ScalarMax) |
| 957 | , fCachedCenterY(SK_ScalarMax) |
| 958 | , fCachedA(SK_ScalarMax) |
| 959 | , fCachedB(SK_ScalarMax) |
| 960 | , fCachedC(SK_ScalarMax) {} |
| 961 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 962 | void GLCircleInside2PtConicalEffect::emitCode(EmitArgs& args) { |
| 963 | const CircleInside2PtConicalEffect& ge = args.fFp.cast<CircleInside2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 964 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 965 | this->emitUniforms(uniformHandler, ge); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 966 | fCenterUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 967 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 968 | "Conical2FSCenter"); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 969 | fParamUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 970 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 971 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 972 | SkString tName("t"); |
| 973 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 974 | GrGLSLShaderVar center = uniformHandler->getUniformVariable(fCenterUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 975 | // params.x = A |
| 976 | // params.y = B |
| 977 | // params.z = C |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 978 | GrGLSLShaderVar params = uniformHandler->getUniformVariable(fParamUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 979 | |
| 980 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
cdalton | 8528541 | 2016-02-18 12:37:07 -0800 | [diff] [blame] | 981 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 982 | SkString coords2DString = fragBuilder->ensureFSCoords2D(args.fCoords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 983 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 984 | |
| 985 | // p = coords2D |
| 986 | // e = center end |
| 987 | // r = radius end |
| 988 | // A = dot(e, e) - r^2 + 2 * r - 1 |
| 989 | // B = (r -1) / A |
| 990 | // C = 1 / A |
| 991 | // d = dot(e, p) + B |
| 992 | // t = d +/- sqrt(d^2 - A * dot(p, p) + C) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 993 | fragBuilder->codeAppendf("\tfloat pDotp = dot(%s, %s);\n", coords2D, coords2D); |
| 994 | fragBuilder->codeAppendf("\tfloat d = dot(%s, %s) + %s.y;\n", coords2D, center.c_str(), |
| 995 | params.c_str()); |
| 996 | fragBuilder->codeAppendf("\tfloat %s = d + sqrt(d * d - %s.x * pDotp + %s.z);\n", |
| 997 | tName.c_str(), params.c_str(), params.c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 998 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 999 | this->emitColor(fragBuilder, |
| 1000 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 1001 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1002 | ge, |
| 1003 | tName.c_str(), |
| 1004 | args.fOutputColor, |
| 1005 | args.fInputColor, |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1006 | args.fSamplers); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1007 | } |
| 1008 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1009 | void GLCircleInside2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 1010 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1011 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1012 | const CircleInside2PtConicalEffect& data = processor.cast<CircleInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1013 | SkScalar centerX = data.centerX(); |
| 1014 | SkScalar centerY = data.centerY(); |
| 1015 | SkScalar A = data.A(); |
| 1016 | SkScalar B = data.B(); |
| 1017 | SkScalar C = data.C(); |
| 1018 | |
| 1019 | if (fCachedCenterX != centerX || fCachedCenterY != centerY || |
| 1020 | fCachedA != A || fCachedB != B || fCachedC != C) { |
| 1021 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1022 | pdman.set2f(fCenterUni, SkScalarToFloat(centerX), SkScalarToFloat(centerY)); |
| 1023 | pdman.set3f(fParamUni, SkScalarToFloat(A), SkScalarToFloat(B), SkScalarToFloat(C)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1024 | |
| 1025 | fCachedCenterX = centerX; |
| 1026 | fCachedCenterY = centerY; |
| 1027 | fCachedA = A; |
| 1028 | fCachedB = B; |
| 1029 | fCachedC = C; |
| 1030 | } |
| 1031 | } |
| 1032 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1033 | void GLCircleInside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1034 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1035 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1036 | } |
| 1037 | |
| 1038 | ////////////////////////////////////////////////////////////////////////////// |
| 1039 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1040 | class CircleOutside2PtConicalEffect : public GrGradientEffect { |
| 1041 | public: |
| 1042 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1043 | static GrFragmentProcessor* Create(GrContext* ctx, |
| 1044 | const SkTwoPointConicalGradient& shader, |
| 1045 | const SkMatrix& matrix, |
| 1046 | SkShader::TileMode tm, |
| 1047 | const CircleConicalInfo& info) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1048 | return new CircleOutside2PtConicalEffect(ctx, shader, matrix, tm, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1049 | } |
| 1050 | |
| 1051 | virtual ~CircleOutside2PtConicalEffect() {} |
| 1052 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1053 | const char* name() const override { return "Two-Point Conical Gradient Outside"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1054 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1055 | SkScalar centerX() const { return fInfo.fCenterEnd.fX; } |
| 1056 | SkScalar centerY() const { return fInfo.fCenterEnd.fY; } |
| 1057 | SkScalar A() const { return fInfo.fA; } |
| 1058 | SkScalar B() const { return fInfo.fB; } |
| 1059 | SkScalar C() const { return fInfo.fC; } |
| 1060 | SkScalar tLimit() const { return fTLimit; } |
| 1061 | bool isFlipped() const { return fIsFlipped; } |
| 1062 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1063 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1064 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1065 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1066 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 1067 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1068 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1069 | const CircleOutside2PtConicalEffect& s = sBase.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1070 | return (INHERITED::onIsEqual(sBase) && |
| 1071 | this->fInfo.fCenterEnd == s.fInfo.fCenterEnd && |
| 1072 | this->fInfo.fA == s.fInfo.fA && |
| 1073 | this->fInfo.fB == s.fInfo.fB && |
| 1074 | this->fInfo.fC == s.fInfo.fC && |
| 1075 | this->fTLimit == s.fTLimit && |
| 1076 | this->fIsFlipped == s.fIsFlipped); |
| 1077 | } |
| 1078 | |
| 1079 | CircleOutside2PtConicalEffect(GrContext* ctx, |
| 1080 | const SkTwoPointConicalGradient& shader, |
| 1081 | const SkMatrix& matrix, |
| 1082 | SkShader::TileMode tm, |
| 1083 | const CircleConicalInfo& info) |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1084 | : INHERITED(ctx, shader, matrix, tm), fInfo(info) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1085 | this->initClassID<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1086 | if (shader.getStartRadius() != shader.getEndRadius()) { |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 1087 | fTLimit = shader.getStartRadius() / (shader.getStartRadius() - shader.getEndRadius()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1088 | } else { |
| 1089 | fTLimit = SK_ScalarMin; |
| 1090 | } |
| 1091 | |
| 1092 | fIsFlipped = shader.isFlippedGrad(); |
| 1093 | } |
| 1094 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1095 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1096 | |
| 1097 | const CircleConicalInfo fInfo; |
| 1098 | SkScalar fTLimit; |
| 1099 | bool fIsFlipped; |
| 1100 | |
| 1101 | typedef GrGradientEffect INHERITED; |
| 1102 | }; |
| 1103 | |
| 1104 | class GLCircleOutside2PtConicalEffect : public GrGLGradientEffect { |
| 1105 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1106 | GLCircleOutside2PtConicalEffect(const GrProcessor&); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1107 | virtual ~GLCircleOutside2PtConicalEffect() {} |
| 1108 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1109 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1110 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1111 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1112 | |
| 1113 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1114 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1115 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1116 | UniformHandle fCenterUni; |
| 1117 | UniformHandle fParamUni; |
| 1118 | |
| 1119 | const char* fVSVaryingName; |
| 1120 | const char* fFSVaryingName; |
| 1121 | |
| 1122 | bool fIsFlipped; |
| 1123 | |
| 1124 | // @{ |
| 1125 | /// Values last uploaded as uniforms |
| 1126 | |
| 1127 | SkScalar fCachedCenterX; |
| 1128 | SkScalar fCachedCenterY; |
| 1129 | SkScalar fCachedA; |
| 1130 | SkScalar fCachedB; |
| 1131 | SkScalar fCachedC; |
| 1132 | SkScalar fCachedTLimit; |
| 1133 | |
| 1134 | // @} |
| 1135 | |
| 1136 | private: |
| 1137 | typedef GrGLGradientEffect INHERITED; |
| 1138 | |
| 1139 | }; |
| 1140 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1141 | void CircleOutside2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 1142 | GrProcessorKeyBuilder* b) const { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1143 | GLCircleOutside2PtConicalEffect::GenKey(*this, caps, b); |
| 1144 | } |
| 1145 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1146 | GrGLSLFragmentProcessor* CircleOutside2PtConicalEffect::onCreateGLSLInstance() const { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1147 | return new GLCircleOutside2PtConicalEffect(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1148 | } |
| 1149 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1150 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircleOutside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1151 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 1152 | /* |
| 1153 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 1154 | */ |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1155 | const GrFragmentProcessor* CircleOutside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1156 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 1157 | 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] | 1158 | SkPoint center2; |
| 1159 | SkScalar radius2; |
| 1160 | SkScalar diffLen; |
| 1161 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1162 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1163 | // If the circles share a center than we can't be in the outside case |
| 1164 | } while (center1 == center2); |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 1165 | SkPoint diff = center2 - center1; |
| 1166 | diffLen = diff.length(); |
| 1167 | // Below makes sure that circle one is not contained within circle two |
| 1168 | // and have radius2 >= radius to match sorting on cpu side |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1169 | radius2 = radius1 + d->fRandom->nextRangeF(0.f, diffLen); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1170 | |
| 1171 | SkColor colors[kMaxRandomGradientColors]; |
| 1172 | SkScalar stopsArray[kMaxRandomGradientColors]; |
| 1173 | SkScalar* stops = stopsArray; |
| 1174 | SkShader::TileMode tm; |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1175 | int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1176 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical(center1, radius1, |
| 1177 | center2, radius2, |
| 1178 | colors, stops, colorCount, |
| 1179 | tm)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1180 | const GrFragmentProcessor* fp = shader->asFragmentProcessor( |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1181 | d->fContext,GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1182 | GrAlwaysAssert(fp); |
joshualitt | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 1183 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1184 | } |
| 1185 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1186 | GLCircleOutside2PtConicalEffect::GLCircleOutside2PtConicalEffect(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1187 | : fVSVaryingName(nullptr) |
| 1188 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1189 | , fCachedCenterX(SK_ScalarMax) |
| 1190 | , fCachedCenterY(SK_ScalarMax) |
| 1191 | , fCachedA(SK_ScalarMax) |
| 1192 | , fCachedB(SK_ScalarMax) |
| 1193 | , fCachedC(SK_ScalarMax) |
| 1194 | , fCachedTLimit(SK_ScalarMax) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1195 | const CircleOutside2PtConicalEffect& data = processor.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1196 | fIsFlipped = data.isFlipped(); |
| 1197 | } |
| 1198 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1199 | void GLCircleOutside2PtConicalEffect::emitCode(EmitArgs& args) { |
| 1200 | const CircleOutside2PtConicalEffect& ge = args.fFp.cast<CircleOutside2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1201 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 1202 | this->emitUniforms(uniformHandler, ge); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 1203 | fCenterUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1204 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 1205 | "Conical2FSCenter"); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 1206 | fParamUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1207 | kVec4f_GrSLType, kDefault_GrSLPrecision, |
| 1208 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1209 | SkString tName("t"); |
| 1210 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1211 | GrGLSLShaderVar center = uniformHandler->getUniformVariable(fCenterUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1212 | // params.x = A |
| 1213 | // params.y = B |
| 1214 | // params.z = C |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1215 | GrGLSLShaderVar params = uniformHandler->getUniformVariable(fParamUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1216 | |
| 1217 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
cdalton | 8528541 | 2016-02-18 12:37:07 -0800 | [diff] [blame] | 1218 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1219 | SkString coords2DString = fragBuilder->ensureFSCoords2D(args.fCoords, 0); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 1220 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1221 | |
| 1222 | // output will default to transparent black (we simply won't write anything |
| 1223 | // else to it if invalid, instead of discarding or returning prematurely) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1224 | fragBuilder->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] | 1225 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1226 | // p = coords2D |
| 1227 | // e = center end |
| 1228 | // r = radius end |
| 1229 | // A = dot(e, e) - r^2 + 2 * r - 1 |
| 1230 | // B = (r -1) / A |
| 1231 | // C = 1 / A |
| 1232 | // d = dot(e, p) + B |
| 1233 | // t = d +/- sqrt(d^2 - A * dot(p, p) + C) |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1234 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1235 | fragBuilder->codeAppendf("\tfloat pDotp = dot(%s, %s);\n", coords2D, coords2D); |
| 1236 | fragBuilder->codeAppendf("\tfloat d = dot(%s, %s) + %s.y;\n", coords2D, center.c_str(), |
| 1237 | params.c_str()); |
| 1238 | fragBuilder->codeAppendf("\tfloat deter = d * d - %s.x * pDotp + %s.z;\n", params.c_str(), |
| 1239 | params.c_str()); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1240 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1241 | // Must check to see if we flipped the circle order (to make sure start radius < end radius) |
| 1242 | // If so we must also flip sign on sqrt |
| 1243 | if (!fIsFlipped) { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1244 | fragBuilder->codeAppendf("\tfloat %s = d + sqrt(deter);\n", tName.c_str()); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1245 | } else { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1246 | fragBuilder->codeAppendf("\tfloat %s = d - sqrt(deter);\n", tName.c_str()); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1247 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1248 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1249 | fragBuilder->codeAppendf("\tif (%s >= %s.w && deter >= 0.0) {\n", |
| 1250 | tName.c_str(), params.c_str()); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1251 | fragBuilder->codeAppend("\t\t"); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1252 | this->emitColor(fragBuilder, |
| 1253 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 1254 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1255 | ge, |
| 1256 | tName.c_str(), |
| 1257 | args.fOutputColor, |
| 1258 | args.fInputColor, |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1259 | args.fSamplers); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1260 | fragBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1261 | } |
| 1262 | |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1263 | void GLCircleOutside2PtConicalEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 1264 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1265 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1266 | const CircleOutside2PtConicalEffect& data = processor.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | 44d83c1 | 2014-04-21 13:10:25 +0000 | [diff] [blame] | 1267 | SkASSERT(data.isFlipped() == fIsFlipped); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1268 | SkScalar centerX = data.centerX(); |
| 1269 | SkScalar centerY = data.centerY(); |
| 1270 | SkScalar A = data.A(); |
| 1271 | SkScalar B = data.B(); |
| 1272 | SkScalar C = data.C(); |
| 1273 | SkScalar tLimit = data.tLimit(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1274 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1275 | if (fCachedCenterX != centerX || fCachedCenterY != centerY || |
| 1276 | fCachedA != A || fCachedB != B || fCachedC != C || fCachedTLimit != tLimit) { |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1277 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1278 | pdman.set2f(fCenterUni, SkScalarToFloat(centerX), SkScalarToFloat(centerY)); |
| 1279 | pdman.set4f(fParamUni, SkScalarToFloat(A), SkScalarToFloat(B), SkScalarToFloat(C), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1280 | SkScalarToFloat(tLimit)); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1281 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1282 | fCachedCenterX = centerX; |
| 1283 | fCachedCenterY = centerY; |
| 1284 | fCachedA = A; |
| 1285 | fCachedB = B; |
| 1286 | fCachedC = C; |
| 1287 | fCachedTLimit = tLimit; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1288 | } |
| 1289 | } |
| 1290 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1291 | void GLCircleOutside2PtConicalEffect::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1292 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 1293 | uint32_t* key = b->add32n(2); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1294 | key[0] = GenBaseGradientKey(processor); |
| 1295 | key[1] = processor.cast<CircleOutside2PtConicalEffect>().isFlipped(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1296 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1297 | |
| 1298 | ////////////////////////////////////////////////////////////////////////////// |
| 1299 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1300 | GrFragmentProcessor* Gr2PtConicalGradientEffect::Create(GrContext* ctx, |
| 1301 | const SkTwoPointConicalGradient& shader, |
| 1302 | SkShader::TileMode tm, |
| 1303 | const SkMatrix* localMatrix) { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1304 | SkMatrix matrix; |
| 1305 | if (!shader.getLocalMatrix().invert(&matrix)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1306 | return nullptr; |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1307 | } |
commit-bot@chromium.org | 96fb748 | 2014-05-09 20:28:11 +0000 | [diff] [blame] | 1308 | if (localMatrix) { |
| 1309 | SkMatrix inv; |
| 1310 | if (!localMatrix->invert(&inv)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1311 | return nullptr; |
commit-bot@chromium.org | 96fb748 | 2014-05-09 20:28:11 +0000 | [diff] [blame] | 1312 | } |
| 1313 | matrix.postConcat(inv); |
| 1314 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1315 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1316 | if (shader.getStartRadius() < kErrorTol) { |
| 1317 | SkScalar focalX; |
| 1318 | ConicalType type = set_matrix_focal_conical(shader, &matrix, &focalX); |
| 1319 | if (type == kInside_ConicalType) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1320 | return FocalInside2PtConicalEffect::Create(ctx, shader, matrix, tm, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1321 | } else if(type == kEdge_ConicalType) { |
| 1322 | set_matrix_edge_conical(shader, &matrix); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1323 | return Edge2PtConicalEffect::Create(ctx, shader, matrix, tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1324 | } else { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1325 | return FocalOutside2PtConicalEffect::Create(ctx, shader, matrix, tm, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1326 | } |
| 1327 | } |
| 1328 | |
| 1329 | CircleConicalInfo info; |
| 1330 | ConicalType type = set_matrix_circle_conical(shader, &matrix, &info); |
| 1331 | |
| 1332 | if (type == kInside_ConicalType) { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1333 | return CircleInside2PtConicalEffect::Create(ctx, shader, matrix, tm, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1334 | } else if (type == kEdge_ConicalType) { |
| 1335 | set_matrix_edge_conical(shader, &matrix); |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1336 | return Edge2PtConicalEffect::Create(ctx, shader, matrix, tm); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1337 | } else { |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 1338 | return CircleOutside2PtConicalEffect::Create(ctx, shader, matrix, tm, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1339 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1340 | } |
| 1341 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1342 | #endif |