commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 7 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 8 | |
| 9 | #include "SkTwoPointConicalGradient.h" |
| 10 | |
commit-bot@chromium.org | ef93d29 | 2014-04-10 15:37:52 +0000 | [diff] [blame] | 11 | #if SK_SUPPORT_GPU |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 12 | #include "GrCoordTransform.h" |
| 13 | #include "GrInvariantOutput.h" |
joshualitt | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 14 | #include "GrPaint.h" |
egdaniel | 2d721d3 | 2015-11-11 13:06:05 -0800 | [diff] [blame] | 15 | #include "glsl/GrGLSLFragmentShaderBuilder.h" |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 16 | #include "glsl/GrGLSLProgramDataManager.h" |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 17 | #include "glsl/GrGLSLUniformHandler.h" |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 18 | #include "SkTwoPointConicalGradient_gpu.h" |
| 19 | |
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: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 64 | class GLSLEdge2PtConicalProcessor; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 65 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 66 | static sk_sp<GrFragmentProcessor> Make(const CreateArgs& args) { |
| 67 | return sk_sp<GrFragmentProcessor>(new Edge2PtConicalEffect(args)); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 68 | } |
| 69 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 70 | virtual ~Edge2PtConicalEffect() {} |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 71 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 72 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 73 | return "Two-Point Conical Gradient Edge Touching"; |
| 74 | } |
| 75 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 76 | // 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] | 77 | SkScalar center() const { return fCenterX1; } |
| 78 | SkScalar diffRadius() const { return fDiffRadius; } |
| 79 | SkScalar radius() const { return fRadius0; } |
| 80 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 81 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 82 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 83 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 84 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 85 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 86 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 87 | const Edge2PtConicalEffect& s = sBase.cast<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 88 | return (INHERITED::onIsEqual(sBase) && |
| 89 | this->fCenterX1 == s.fCenterX1 && |
| 90 | this->fRadius0 == s.fRadius0 && |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 91 | this->fDiffRadius == s.fDiffRadius); |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 92 | } |
| 93 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 94 | Edge2PtConicalEffect(const CreateArgs& args) |
| 95 | : INHERITED(args) { |
| 96 | const SkTwoPointConicalGradient& shader = |
| 97 | *static_cast<const SkTwoPointConicalGradient*>(args.fShader); |
| 98 | fCenterX1 = shader.getCenterX1(); |
| 99 | fRadius0 = shader.getStartRadius(); |
| 100 | fDiffRadius = shader.getDiffRadius(); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 101 | this->initClassID<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 102 | // We should only be calling this shader if we are degenerate case with touching circles |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 103 | // When deciding if we are in edge case, we scaled by the end radius for cases when the |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 104 | // start radius was close to zero, otherwise we scaled by the start radius. In addition |
| 105 | // Our test for the edge case in set_matrix_circle_conical has a higher tolerance so we |
| 106 | // need the sqrt value below |
| 107 | SkASSERT(SkScalarAbs(SkScalarAbs(fDiffRadius) - fCenterX1) < |
| 108 | (fRadius0 < kErrorTol ? shader.getEndRadius() * kEdgeErrorTol : |
| 109 | fRadius0 * sqrt(kEdgeErrorTol))); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 110 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 111 | // We pass the linear part of the quadratic as a varying. |
| 112 | // float b = -2.0 * (fCenterX1 * x + fRadius0 * fDiffRadius * z) |
| 113 | fBTransform = this->getCoordTransform(); |
| 114 | SkMatrix& bMatrix = *fBTransform.accessMatrix(); |
| 115 | SkScalar r0dr = SkScalarMul(fRadius0, fDiffRadius); |
| 116 | bMatrix[SkMatrix::kMScaleX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMScaleX]) + |
| 117 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp0])); |
| 118 | bMatrix[SkMatrix::kMSkewX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMSkewX]) + |
| 119 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp1])); |
| 120 | bMatrix[SkMatrix::kMTransX] = -2 * (SkScalarMul(fCenterX1, bMatrix[SkMatrix::kMTransX]) + |
| 121 | SkScalarMul(r0dr, bMatrix[SkMatrix::kMPersp2])); |
| 122 | this->addCoordTransform(&fBTransform); |
| 123 | } |
| 124 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 125 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 126 | |
| 127 | // @{ |
| 128 | // Cache of values - these can change arbitrarily, EXCEPT |
| 129 | // we shouldn't change between degenerate and non-degenerate?! |
| 130 | |
| 131 | GrCoordTransform fBTransform; |
| 132 | SkScalar fCenterX1; |
| 133 | SkScalar fRadius0; |
| 134 | SkScalar fDiffRadius; |
| 135 | |
| 136 | // @} |
| 137 | |
| 138 | typedef GrGradientEffect INHERITED; |
| 139 | }; |
| 140 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 141 | class Edge2PtConicalEffect::GLSLEdge2PtConicalProcessor : public GrGradientEffect::GLSLProcessor { |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 142 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 143 | GLSLEdge2PtConicalProcessor(const GrProcessor&); |
| 144 | virtual ~GLSLEdge2PtConicalProcessor() { } |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 145 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 146 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 147 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 148 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 149 | |
| 150 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 151 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 152 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 153 | UniformHandle fParamUni; |
| 154 | |
| 155 | const char* fVSVaryingName; |
| 156 | const char* fFSVaryingName; |
| 157 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 158 | // @{ |
| 159 | /// Values last uploaded as uniforms |
| 160 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 161 | SkScalar fCachedRadius; |
| 162 | SkScalar fCachedDiffRadius; |
| 163 | |
| 164 | // @} |
| 165 | |
| 166 | private: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 167 | typedef GrGradientEffect::GLSLProcessor INHERITED; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 168 | |
| 169 | }; |
| 170 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 171 | void Edge2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 172 | GrProcessorKeyBuilder* b) const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 173 | Edge2PtConicalEffect::GLSLEdge2PtConicalProcessor::GenKey(*this, caps, b); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 174 | } |
| 175 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 176 | GrGLSLFragmentProcessor* Edge2PtConicalEffect::onCreateGLSLInstance() const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 177 | return new Edge2PtConicalEffect::GLSLEdge2PtConicalProcessor(*this); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 178 | } |
skia.committer@gmail.com | 221b911 | 2014-04-04 03:04:32 +0000 | [diff] [blame] | 179 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 180 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(Edge2PtConicalEffect); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 181 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 182 | /* |
| 183 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 184 | */ |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 185 | sk_sp<GrFragmentProcessor> Edge2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 186 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 187 | SkScalar radius1 = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 188 | SkPoint center2; |
| 189 | SkScalar radius2; |
| 190 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 191 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 192 | // If the circles are identical the factory will give us an empty shader. |
| 193 | // This will happen if we pick identical centers |
| 194 | } while (center1 == center2); |
| 195 | |
| 196 | // Below makes sure that circle one is contained within circle two |
| 197 | // and both circles are touching on an edge |
| 198 | SkPoint diff = center2 - center1; |
| 199 | SkScalar diffLen = diff.length(); |
| 200 | radius2 = radius1 + diffLen; |
| 201 | |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 202 | RandomGradientParams params(d->fRandom); |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 203 | auto shader = SkGradientShader::MakeTwoPointConical(center1, radius1, center2, radius2, |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 204 | params.fColors, params.fStops, |
| 205 | params.fColorCount, params.fTileMode); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 206 | SkMatrix viewMatrix = GrTest::TestMatrix(d->fRandom); |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 207 | auto dstColorSpace = GrTest::TestColorSpace(d->fRandom); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 208 | sk_sp<GrFragmentProcessor> fp = shader->asFragmentProcessor(SkShader::AsFPArgs( |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 209 | d->fContext, &viewMatrix, NULL, kNone_SkFilterQuality, dstColorSpace.get(), |
brianosman | 1638c0d | 2016-07-25 05:12:53 -0700 | [diff] [blame] | 210 | SkSourceGammaTreatment::kRespect)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 211 | GrAlwaysAssert(fp); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 212 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 213 | } |
| 214 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 215 | Edge2PtConicalEffect::GLSLEdge2PtConicalProcessor::GLSLEdge2PtConicalProcessor(const GrProcessor&) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 216 | : fVSVaryingName(nullptr) |
| 217 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 218 | , fCachedRadius(-SK_ScalarMax) |
| 219 | , fCachedDiffRadius(-SK_ScalarMax) {} |
| 220 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 221 | void Edge2PtConicalEffect::GLSLEdge2PtConicalProcessor::emitCode(EmitArgs& args) { |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 222 | const Edge2PtConicalEffect& ge = args.fFp.cast<Edge2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 223 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 224 | this->emitUniforms(uniformHandler, ge); |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame] | 225 | fParamUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
| 226 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 227 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 228 | |
| 229 | SkString cName("c"); |
| 230 | SkString tName("t"); |
| 231 | SkString p0; // start radius |
| 232 | SkString p1; // start radius squared |
| 233 | SkString p2; // difference in radii (r1 - r0) |
| 234 | |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame] | 235 | |
| 236 | p0.appendf("%s.x", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
| 237 | p1.appendf("%s.y", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
| 238 | p2.appendf("%s.z", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 239 | |
| 240 | // We interpolate the linear component in coords[1]. |
bsalomon | 1a1aa93 | 2016-09-12 09:30:36 -0700 | [diff] [blame] | 241 | SkASSERT(args.fTransformedCoords[0].getType() == args.fTransformedCoords[1].getType()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 242 | const char* coords2D; |
| 243 | SkString bVar; |
cdalton | 8528541 | 2016-02-18 12:37:07 -0800 | [diff] [blame] | 244 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
bsalomon | 1a1aa93 | 2016-09-12 09:30:36 -0700 | [diff] [blame] | 245 | if (kVec3f_GrSLType == args.fTransformedCoords[0].getType()) { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 246 | fragBuilder->codeAppendf("\tvec3 interpolants = vec3(%s.xy / %s.z, %s.x / %s.z);\n", |
bsalomon | 1a1aa93 | 2016-09-12 09:30:36 -0700 | [diff] [blame] | 247 | args.fTransformedCoords[0].c_str(), |
| 248 | args.fTransformedCoords[0].c_str(), |
| 249 | args.fTransformedCoords[1].c_str(), |
| 250 | args.fTransformedCoords[1].c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 251 | coords2D = "interpolants.xy"; |
| 252 | bVar = "interpolants.z"; |
| 253 | } else { |
bsalomon | 1a1aa93 | 2016-09-12 09:30:36 -0700 | [diff] [blame] | 254 | coords2D = args.fTransformedCoords[0].c_str(); |
| 255 | bVar.printf("%s.x", args.fTransformedCoords[1].c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 256 | } |
| 257 | |
| 258 | // output will default to transparent black (we simply won't write anything |
| 259 | // else to it if invalid, instead of discarding or returning prematurely) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 260 | 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] | 261 | |
| 262 | // c = (x^2)+(y^2) - params[1] |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 263 | fragBuilder->codeAppendf("\tfloat %s = dot(%s, %s) - %s;\n", |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 264 | cName.c_str(), coords2D, coords2D, p1.c_str()); |
| 265 | |
| 266 | // linear case: t = -c/b |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 267 | fragBuilder->codeAppendf("\tfloat %s = -(%s / %s);\n", tName.c_str(), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 268 | cName.c_str(), bVar.c_str()); |
| 269 | |
| 270 | // if r(t) > 0, then t will be the x coordinate |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 271 | 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] | 272 | p2.c_str(), p0.c_str()); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 273 | fragBuilder->codeAppend("\t"); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 274 | this->emitColor(fragBuilder, |
| 275 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 276 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 277 | ge, |
| 278 | tName.c_str(), |
| 279 | args.fOutputColor, |
| 280 | args.fInputColor, |
cdalton | 3f6f76f | 2016-04-11 12:18:09 -0700 | [diff] [blame] | 281 | args.fTexSamplers); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 282 | fragBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 283 | } |
| 284 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 285 | void Edge2PtConicalEffect::GLSLEdge2PtConicalProcessor::onSetData( |
| 286 | const GrGLSLProgramDataManager& pdman, |
| 287 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 288 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 289 | const Edge2PtConicalEffect& data = processor.cast<Edge2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 290 | SkScalar radius0 = data.radius(); |
| 291 | SkScalar diffRadius = data.diffRadius(); |
| 292 | |
| 293 | if (fCachedRadius != radius0 || |
| 294 | fCachedDiffRadius != diffRadius) { |
| 295 | |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 296 | pdman.set3f(fParamUni, SkScalarToFloat(radius0), |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame] | 297 | SkScalarToFloat(SkScalarMul(radius0, radius0)), SkScalarToFloat(diffRadius)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 298 | fCachedRadius = radius0; |
| 299 | fCachedDiffRadius = diffRadius; |
| 300 | } |
| 301 | } |
| 302 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 303 | void Edge2PtConicalEffect::GLSLEdge2PtConicalProcessor::GenKey(const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 304 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 305 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | ////////////////////////////////////////////////////////////////////////////// |
| 309 | // Focal Conical Gradients |
| 310 | ////////////////////////////////////////////////////////////////////////////// |
| 311 | |
| 312 | static ConicalType set_matrix_focal_conical(const SkTwoPointConicalGradient& shader, |
| 313 | SkMatrix* invLMatrix, SkScalar* focalX) { |
| 314 | // Inverse of the current local matrix is passed in then, |
| 315 | // translate, scale, and rotate such that endCircle is unit circle on x-axis, |
| 316 | // and focal point is at the origin. |
| 317 | ConicalType conicalType; |
| 318 | const SkPoint& focal = shader.getStartCenter(); |
| 319 | const SkPoint& centerEnd = shader.getEndCenter(); |
| 320 | SkScalar radius = shader.getEndRadius(); |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 321 | SkScalar invRadius = 1.f / radius; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 322 | |
| 323 | SkMatrix matrix; |
| 324 | |
| 325 | matrix.setTranslate(-centerEnd.fX, -centerEnd.fY); |
| 326 | matrix.postScale(invRadius, invRadius); |
| 327 | |
| 328 | SkPoint focalTrans; |
| 329 | matrix.mapPoints(&focalTrans, &focal, 1); |
| 330 | *focalX = focalTrans.length(); |
| 331 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 332 | if (0.f != *focalX) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 333 | SkScalar invFocalX = SkScalarInvert(*focalX); |
| 334 | SkMatrix rot; |
| 335 | rot.setSinCos(-SkScalarMul(invFocalX, focalTrans.fY), |
| 336 | SkScalarMul(invFocalX, focalTrans.fX)); |
| 337 | matrix.postConcat(rot); |
| 338 | } |
| 339 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 340 | matrix.postTranslate(-(*focalX), 0.f); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 341 | |
| 342 | // If the focal point is touching the edge of the circle it will |
| 343 | // cause a degenerate case that must be handled separately |
egdaniel | 8405ef9 | 2014-06-09 11:57:28 -0700 | [diff] [blame] | 344 | // kEdgeErrorTol = 5 * kErrorTol was picked after manual testing the |
| 345 | // stability trade off versus the linear approx used in the Edge Shader |
| 346 | if (SkScalarAbs(1.f - (*focalX)) < kEdgeErrorTol) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 347 | return kEdge_ConicalType; |
| 348 | } |
| 349 | |
| 350 | // Scale factor 1 / (1 - focalX * focalX) |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 351 | SkScalar oneMinusF2 = 1.f - SkScalarMul(*focalX, *focalX); |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 352 | SkScalar s = SkScalarInvert(oneMinusF2); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 353 | |
| 354 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 355 | if (s >= 0.f) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 356 | conicalType = kInside_ConicalType; |
| 357 | matrix.postScale(s, s * SkScalarSqrt(oneMinusF2)); |
| 358 | } else { |
| 359 | conicalType = kOutside_ConicalType; |
| 360 | matrix.postScale(s, s); |
| 361 | } |
| 362 | |
| 363 | invLMatrix->postConcat(matrix); |
| 364 | |
| 365 | return conicalType; |
| 366 | } |
| 367 | |
| 368 | ////////////////////////////////////////////////////////////////////////////// |
| 369 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 370 | class FocalOutside2PtConicalEffect : public GrGradientEffect { |
| 371 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 372 | class GLSLFocalOutside2PtConicalProcessor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 373 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 374 | static sk_sp<GrFragmentProcessor> Make(const CreateArgs& args, SkScalar focalX) { |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 375 | return sk_sp<GrFragmentProcessor>( |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 376 | new FocalOutside2PtConicalEffect(args, focalX)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | virtual ~FocalOutside2PtConicalEffect() { } |
| 380 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 381 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 382 | return "Two-Point Conical Gradient Focal Outside"; |
| 383 | } |
| 384 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 385 | bool isFlipped() const { return fIsFlipped; } |
| 386 | SkScalar focal() const { return fFocalX; } |
| 387 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 388 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 389 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 390 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 391 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 392 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 393 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 394 | const FocalOutside2PtConicalEffect& s = sBase.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 395 | return (INHERITED::onIsEqual(sBase) && |
| 396 | this->fFocalX == s.fFocalX && |
| 397 | this->fIsFlipped == s.fIsFlipped); |
| 398 | } |
| 399 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 400 | FocalOutside2PtConicalEffect(const CreateArgs& args, SkScalar focalX) |
| 401 | : INHERITED(args) |
joshualitt | b245605 | 2015-07-08 09:36:59 -0700 | [diff] [blame] | 402 | , fFocalX(focalX) |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 403 | , fIsFlipped(static_cast<const SkTwoPointConicalGradient*>(args.fShader)->isFlippedGrad()) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 404 | this->initClassID<FocalOutside2PtConicalEffect>(); |
| 405 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 406 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 407 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 408 | |
| 409 | SkScalar fFocalX; |
| 410 | bool fIsFlipped; |
| 411 | |
| 412 | typedef GrGradientEffect INHERITED; |
| 413 | }; |
| 414 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 415 | class FocalOutside2PtConicalEffect::GLSLFocalOutside2PtConicalProcessor |
| 416 | : public GrGradientEffect::GLSLProcessor { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 417 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 418 | GLSLFocalOutside2PtConicalProcessor(const GrProcessor&); |
| 419 | virtual ~GLSLFocalOutside2PtConicalProcessor() { } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 420 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 421 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 422 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 423 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 424 | |
| 425 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 426 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 427 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 428 | UniformHandle fParamUni; |
| 429 | |
| 430 | const char* fVSVaryingName; |
| 431 | const char* fFSVaryingName; |
| 432 | |
| 433 | bool fIsFlipped; |
| 434 | |
| 435 | // @{ |
| 436 | /// Values last uploaded as uniforms |
| 437 | |
| 438 | SkScalar fCachedFocal; |
| 439 | |
| 440 | // @} |
| 441 | |
| 442 | private: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 443 | typedef GrGradientEffect::GLSLProcessor INHERITED; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 444 | |
| 445 | }; |
| 446 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 447 | void FocalOutside2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 448 | GrProcessorKeyBuilder* b) const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 449 | FocalOutside2PtConicalEffect::GLSLFocalOutside2PtConicalProcessor::GenKey(*this, caps, b); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 450 | } |
| 451 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 452 | GrGLSLFragmentProcessor* FocalOutside2PtConicalEffect::onCreateGLSLInstance() const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 453 | return new FocalOutside2PtConicalEffect::GLSLFocalOutside2PtConicalProcessor(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 454 | } |
| 455 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 456 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(FocalOutside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 457 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 458 | /* |
| 459 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 460 | */ |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 461 | sk_sp<GrFragmentProcessor> FocalOutside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 462 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 463 | SkScalar radius1 = 0.f; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 464 | SkPoint center2; |
| 465 | SkScalar radius2; |
| 466 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 467 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 468 | // 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] | 469 | } while (center1 == center2); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 470 | |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 471 | SkPoint diff = center2 - center1; |
| 472 | SkScalar diffLen = diff.length(); |
| 473 | // Below makes sure that the focal point is not contained within circle two |
| 474 | radius2 = d->fRandom->nextRangeF(0.f, diffLen); |
| 475 | |
| 476 | RandomGradientParams params(d->fRandom); |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 477 | auto shader = SkGradientShader::MakeTwoPointConical(center1, radius1, center2, radius2, |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 478 | params.fColors, params.fStops, |
| 479 | params.fColorCount, params.fTileMode); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 480 | SkMatrix viewMatrix = GrTest::TestMatrix(d->fRandom); |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 481 | auto dstColorSpace = GrTest::TestColorSpace(d->fRandom); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 482 | sk_sp<GrFragmentProcessor> fp = shader->asFragmentProcessor(SkShader::AsFPArgs( |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 483 | d->fContext, &viewMatrix, NULL, kNone_SkFilterQuality, dstColorSpace.get(), |
brianosman | 1638c0d | 2016-07-25 05:12:53 -0700 | [diff] [blame] | 484 | SkSourceGammaTreatment::kRespect)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 485 | GrAlwaysAssert(fp); |
| 486 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 487 | } |
| 488 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 489 | FocalOutside2PtConicalEffect::GLSLFocalOutside2PtConicalProcessor |
| 490 | ::GLSLFocalOutside2PtConicalProcessor(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 491 | : fVSVaryingName(nullptr) |
| 492 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 493 | , fCachedFocal(SK_ScalarMax) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 494 | const FocalOutside2PtConicalEffect& data = processor.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 495 | fIsFlipped = data.isFlipped(); |
| 496 | } |
| 497 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 498 | void FocalOutside2PtConicalEffect::GLSLFocalOutside2PtConicalProcessor::emitCode(EmitArgs& args) { |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 499 | const FocalOutside2PtConicalEffect& ge = args.fFp.cast<FocalOutside2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 500 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 501 | this->emitUniforms(uniformHandler, ge); |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame] | 502 | fParamUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
| 503 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 504 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 505 | SkString tName("t"); |
| 506 | SkString p0; // focalX |
| 507 | SkString p1; // 1 - focalX * focalX |
| 508 | |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame] | 509 | p0.appendf("%s.x", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
| 510 | p1.appendf("%s.y", uniformHandler->getUniformVariable(fParamUni).getName().c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 511 | |
| 512 | // if we have a vec3 from being in perspective, convert it to a vec2 first |
cdalton | 8528541 | 2016-02-18 12:37:07 -0800 | [diff] [blame] | 513 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
bsalomon | 1a1aa93 | 2016-09-12 09:30:36 -0700 | [diff] [blame] | 514 | SkString coords2DString = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 515 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 516 | |
| 517 | // t = p.x * focal.x +/- sqrt(p.x^2 + (1 - focal.x^2) * p.y^2) |
| 518 | |
| 519 | // output will default to transparent black (we simply won't write anything |
| 520 | // else to it if invalid, instead of discarding or returning prematurely) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 521 | 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] | 522 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 523 | fragBuilder->codeAppendf("\tfloat xs = %s.x * %s.x;\n", coords2D, coords2D); |
| 524 | fragBuilder->codeAppendf("\tfloat ys = %s.y * %s.y;\n", coords2D, coords2D); |
| 525 | 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] | 526 | |
| 527 | // Must check to see if we flipped the circle order (to make sure start radius < end radius) |
| 528 | // If so we must also flip sign on sqrt |
| 529 | if (!fIsFlipped) { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 530 | fragBuilder->codeAppendf("\tfloat %s = %s.x * %s + sqrt(d);\n", tName.c_str(), |
| 531 | coords2D, p0.c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 532 | } else { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 533 | fragBuilder->codeAppendf("\tfloat %s = %s.x * %s - sqrt(d);\n", tName.c_str(), |
| 534 | coords2D, p0.c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 535 | } |
| 536 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 537 | fragBuilder->codeAppendf("\tif (%s >= 0.0 && d >= 0.0) {\n", tName.c_str()); |
| 538 | fragBuilder->codeAppend("\t\t"); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 539 | this->emitColor(fragBuilder, |
| 540 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 541 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 542 | ge, |
| 543 | tName.c_str(), |
| 544 | args.fOutputColor, |
| 545 | args.fInputColor, |
cdalton | 3f6f76f | 2016-04-11 12:18:09 -0700 | [diff] [blame] | 546 | args.fTexSamplers); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 547 | fragBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 548 | } |
| 549 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 550 | void FocalOutside2PtConicalEffect::GLSLFocalOutside2PtConicalProcessor::onSetData( |
| 551 | const GrGLSLProgramDataManager& pdman, |
| 552 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 553 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 554 | const FocalOutside2PtConicalEffect& data = processor.cast<FocalOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 555 | SkASSERT(data.isFlipped() == fIsFlipped); |
| 556 | SkScalar focal = data.focal(); |
| 557 | |
| 558 | if (fCachedFocal != focal) { |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 559 | SkScalar oneMinus2F = 1.f - SkScalarMul(focal, focal); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 560 | |
jvanverth | de11ee4 | 2016-02-26 13:58:40 -0800 | [diff] [blame] | 561 | pdman.set2f(fParamUni, SkScalarToFloat(focal), SkScalarToFloat(oneMinus2F)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 562 | fCachedFocal = focal; |
| 563 | } |
| 564 | } |
| 565 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 566 | void FocalOutside2PtConicalEffect::GLSLFocalOutside2PtConicalProcessor::GenKey( |
| 567 | const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 568 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 569 | uint32_t* key = b->add32n(2); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 570 | key[0] = GenBaseGradientKey(processor); |
| 571 | key[1] = processor.cast<FocalOutside2PtConicalEffect>().isFlipped(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 572 | } |
| 573 | |
| 574 | ////////////////////////////////////////////////////////////////////////////// |
| 575 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 576 | class FocalInside2PtConicalEffect : public GrGradientEffect { |
| 577 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 578 | class GLSLFocalInside2PtConicalProcessor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 579 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 580 | static sk_sp<GrFragmentProcessor> Make(const CreateArgs& args, SkScalar focalX) { |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 581 | return sk_sp<GrFragmentProcessor>( |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 582 | new FocalInside2PtConicalEffect(args, focalX)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 583 | } |
| 584 | |
| 585 | virtual ~FocalInside2PtConicalEffect() {} |
| 586 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 587 | const char* name() const override { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 588 | return "Two-Point Conical Gradient Focal Inside"; |
| 589 | } |
| 590 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 591 | SkScalar focal() const { return fFocalX; } |
| 592 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 593 | typedef FocalInside2PtConicalEffect::GLSLFocalInside2PtConicalProcessor GLSLProcessor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 594 | |
| 595 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 596 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 597 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 598 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 599 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 600 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 601 | const FocalInside2PtConicalEffect& s = sBase.cast<FocalInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 602 | return (INHERITED::onIsEqual(sBase) && |
| 603 | this->fFocalX == s.fFocalX); |
| 604 | } |
| 605 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 606 | FocalInside2PtConicalEffect(const CreateArgs& args, SkScalar focalX) |
| 607 | : INHERITED(args), fFocalX(focalX) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 608 | this->initClassID<FocalInside2PtConicalEffect>(); |
| 609 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 610 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 611 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 612 | |
| 613 | SkScalar fFocalX; |
| 614 | |
| 615 | typedef GrGradientEffect INHERITED; |
| 616 | }; |
| 617 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 618 | class FocalInside2PtConicalEffect::GLSLFocalInside2PtConicalProcessor |
| 619 | : public GrGradientEffect::GLSLProcessor { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 620 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 621 | GLSLFocalInside2PtConicalProcessor(const GrProcessor&); |
| 622 | virtual ~GLSLFocalInside2PtConicalProcessor() {} |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 623 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 624 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 625 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 626 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 627 | |
| 628 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 629 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 630 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 631 | UniformHandle fFocalUni; |
| 632 | |
| 633 | const char* fVSVaryingName; |
| 634 | const char* fFSVaryingName; |
| 635 | |
| 636 | // @{ |
| 637 | /// Values last uploaded as uniforms |
| 638 | |
| 639 | SkScalar fCachedFocal; |
| 640 | |
| 641 | // @} |
| 642 | |
| 643 | private: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 644 | typedef GrGradientEffect::GLSLProcessor INHERITED; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 645 | |
| 646 | }; |
| 647 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 648 | void FocalInside2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 649 | GrProcessorKeyBuilder* b) const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 650 | FocalInside2PtConicalEffect::GLSLFocalInside2PtConicalProcessor::GenKey(*this, caps, b); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 651 | } |
| 652 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 653 | GrGLSLFragmentProcessor* FocalInside2PtConicalEffect::onCreateGLSLInstance() const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 654 | return new FocalInside2PtConicalEffect::GLSLFocalInside2PtConicalProcessor(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 655 | } |
| 656 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 657 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(FocalInside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 658 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 659 | /* |
| 660 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 661 | */ |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 662 | sk_sp<GrFragmentProcessor> FocalInside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 663 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 664 | SkScalar radius1 = 0.f; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 665 | SkPoint center2; |
| 666 | SkScalar radius2; |
| 667 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 668 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 669 | // Below makes sure radius2 is larger enouch such that the focal point |
| 670 | // is inside the end circle |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 671 | SkScalar increase = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 672 | SkPoint diff = center2 - center1; |
| 673 | SkScalar diffLen = diff.length(); |
| 674 | radius2 = diffLen + increase; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 675 | // If the circles are identical the factory will give us an empty shader. |
| 676 | } while (radius1 == radius2 && center1 == center2); |
| 677 | |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 678 | RandomGradientParams params(d->fRandom); |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 679 | auto shader = SkGradientShader::MakeTwoPointConical(center1, radius1, center2, radius2, |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 680 | params.fColors, params.fStops, |
| 681 | params.fColorCount, params.fTileMode); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 682 | SkMatrix viewMatrix = GrTest::TestMatrix(d->fRandom); |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 683 | auto dstColorSpace = GrTest::TestColorSpace(d->fRandom); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 684 | sk_sp<GrFragmentProcessor> fp = shader->asFragmentProcessor(SkShader::AsFPArgs( |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 685 | d->fContext, &viewMatrix, NULL, kNone_SkFilterQuality, dstColorSpace.get(), |
brianosman | 1638c0d | 2016-07-25 05:12:53 -0700 | [diff] [blame] | 686 | SkSourceGammaTreatment::kRespect)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 687 | GrAlwaysAssert(fp); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 688 | return fp; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 689 | } |
| 690 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 691 | FocalInside2PtConicalEffect::GLSLFocalInside2PtConicalProcessor |
| 692 | ::GLSLFocalInside2PtConicalProcessor(const GrProcessor&) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 693 | : fVSVaryingName(nullptr) |
| 694 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 695 | , fCachedFocal(SK_ScalarMax) {} |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 696 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 697 | void FocalInside2PtConicalEffect::GLSLFocalInside2PtConicalProcessor::emitCode(EmitArgs& args) { |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 698 | const FocalInside2PtConicalEffect& ge = args.fFp.cast<FocalInside2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 699 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 700 | this->emitUniforms(uniformHandler, ge); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 701 | fFocalUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 702 | kFloat_GrSLType, kDefault_GrSLPrecision, |
| 703 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 704 | SkString tName("t"); |
| 705 | |
| 706 | // this is the distance along x-axis from the end center to focal point in |
| 707 | // transformed coordinates |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 708 | GrGLSLShaderVar focal = uniformHandler->getUniformVariable(fFocalUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 709 | |
| 710 | // 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] | 711 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
bsalomon | 1a1aa93 | 2016-09-12 09:30:36 -0700 | [diff] [blame] | 712 | SkString coords2DString = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 713 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 714 | |
| 715 | // t = p.x * focalX + length(p) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 716 | fragBuilder->codeAppendf("\tfloat %s = %s.x * %s + length(%s);\n", tName.c_str(), |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 717 | coords2D, focal.c_str(), coords2D); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 718 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 719 | this->emitColor(fragBuilder, |
| 720 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 721 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 722 | ge, |
| 723 | tName.c_str(), |
| 724 | args.fOutputColor, |
| 725 | args.fInputColor, |
cdalton | 3f6f76f | 2016-04-11 12:18:09 -0700 | [diff] [blame] | 726 | args.fTexSamplers); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 727 | } |
| 728 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 729 | void FocalInside2PtConicalEffect::GLSLFocalInside2PtConicalProcessor::onSetData( |
| 730 | const GrGLSLProgramDataManager& pdman, |
| 731 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 732 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 733 | const FocalInside2PtConicalEffect& data = processor.cast<FocalInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 734 | SkScalar focal = data.focal(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 735 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 736 | if (fCachedFocal != focal) { |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 737 | pdman.set1f(fFocalUni, SkScalarToFloat(focal)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 738 | fCachedFocal = focal; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 739 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 740 | } |
| 741 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 742 | void FocalInside2PtConicalEffect::GLSLFocalInside2PtConicalProcessor::GenKey( |
| 743 | const GrProcessor& processor, |
| 744 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 745 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 746 | } |
| 747 | |
| 748 | ////////////////////////////////////////////////////////////////////////////// |
| 749 | // Circle Conical Gradients |
| 750 | ////////////////////////////////////////////////////////////////////////////// |
| 751 | |
| 752 | struct CircleConicalInfo { |
| 753 | SkPoint fCenterEnd; |
| 754 | SkScalar fA; |
| 755 | SkScalar fB; |
| 756 | SkScalar fC; |
| 757 | }; |
| 758 | |
| 759 | // Returns focal distance along x-axis in transformed coords |
| 760 | static ConicalType set_matrix_circle_conical(const SkTwoPointConicalGradient& shader, |
| 761 | SkMatrix* invLMatrix, CircleConicalInfo* info) { |
| 762 | // Inverse of the current local matrix is passed in then, |
| 763 | // translate and scale such that start circle is on the origin and has radius 1 |
| 764 | const SkPoint& centerStart = shader.getStartCenter(); |
| 765 | const SkPoint& centerEnd = shader.getEndCenter(); |
| 766 | SkScalar radiusStart = shader.getStartRadius(); |
| 767 | SkScalar radiusEnd = shader.getEndRadius(); |
| 768 | |
| 769 | SkMatrix matrix; |
| 770 | |
| 771 | matrix.setTranslate(-centerStart.fX, -centerStart.fY); |
| 772 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 773 | SkScalar invStartRad = 1.f / radiusStart; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 774 | matrix.postScale(invStartRad, invStartRad); |
| 775 | |
| 776 | radiusEnd /= radiusStart; |
| 777 | |
| 778 | SkPoint centerEndTrans; |
| 779 | matrix.mapPoints(¢erEndTrans, ¢erEnd, 1); |
| 780 | |
| 781 | SkScalar A = centerEndTrans.fX * centerEndTrans.fX + centerEndTrans.fY * centerEndTrans.fY |
| 782 | - radiusEnd * radiusEnd + 2 * radiusEnd - 1; |
| 783 | |
| 784 | // Check to see if start circle is inside end circle with edges touching. |
| 785 | // 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] | 786 | // to the edge shader. kEdgeErrorTol = 5 * kErrorTol was picked after manual testing |
| 787 | // so that C = 1 / A is stable, and the linear approximation used in the Edge shader is |
| 788 | // still accurate. |
| 789 | if (SkScalarAbs(A) < kEdgeErrorTol) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 790 | return kEdge_ConicalType; |
| 791 | } |
| 792 | |
commit-bot@chromium.org | 8089467 | 2014-04-22 21:24:22 +0000 | [diff] [blame] | 793 | SkScalar C = 1.f / A; |
| 794 | SkScalar B = (radiusEnd - 1.f) * C; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 795 | |
| 796 | matrix.postScale(C, C); |
| 797 | |
| 798 | invLMatrix->postConcat(matrix); |
| 799 | |
| 800 | info->fCenterEnd = centerEndTrans; |
| 801 | info->fA = A; |
| 802 | info->fB = B; |
| 803 | info->fC = C; |
| 804 | |
| 805 | // 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] | 806 | if (A < 0.f) { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 807 | return kInside_ConicalType; |
| 808 | } |
| 809 | return kOutside_ConicalType; |
| 810 | } |
| 811 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 812 | class CircleInside2PtConicalEffect : public GrGradientEffect { |
| 813 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 814 | class GLSLCircleInside2PtConicalProcessor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 815 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 816 | static sk_sp<GrFragmentProcessor> Make(const CreateArgs& args, const CircleConicalInfo& info) { |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 817 | return sk_sp<GrFragmentProcessor>( |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 818 | new CircleInside2PtConicalEffect(args, info)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 819 | } |
| 820 | |
| 821 | virtual ~CircleInside2PtConicalEffect() {} |
| 822 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 823 | const char* name() const override { return "Two-Point Conical Gradient Inside"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 824 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 825 | SkScalar centerX() const { return fInfo.fCenterEnd.fX; } |
| 826 | SkScalar centerY() const { return fInfo.fCenterEnd.fY; } |
| 827 | SkScalar A() const { return fInfo.fA; } |
| 828 | SkScalar B() const { return fInfo.fB; } |
| 829 | SkScalar C() const { return fInfo.fC; } |
| 830 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 831 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 832 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 833 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 834 | virtual void onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 835 | GrProcessorKeyBuilder* b) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 836 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 837 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 838 | const CircleInside2PtConicalEffect& s = sBase.cast<CircleInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 839 | return (INHERITED::onIsEqual(sBase) && |
| 840 | this->fInfo.fCenterEnd == s.fInfo.fCenterEnd && |
| 841 | this->fInfo.fA == s.fInfo.fA && |
| 842 | this->fInfo.fB == s.fInfo.fB && |
| 843 | this->fInfo.fC == s.fInfo.fC); |
| 844 | } |
| 845 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 846 | CircleInside2PtConicalEffect(const CreateArgs& args, const CircleConicalInfo& info) |
| 847 | : INHERITED(args), fInfo(info) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 848 | this->initClassID<CircleInside2PtConicalEffect>(); |
| 849 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 850 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 851 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 852 | |
| 853 | const CircleConicalInfo fInfo; |
| 854 | |
| 855 | typedef GrGradientEffect INHERITED; |
| 856 | }; |
| 857 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 858 | class CircleInside2PtConicalEffect::GLSLCircleInside2PtConicalProcessor |
| 859 | : public GrGradientEffect::GLSLProcessor { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 860 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 861 | GLSLCircleInside2PtConicalProcessor(const GrProcessor&); |
| 862 | virtual ~GLSLCircleInside2PtConicalProcessor() {} |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 863 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 864 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 865 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 866 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 867 | |
| 868 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 869 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 870 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 871 | UniformHandle fCenterUni; |
| 872 | UniformHandle fParamUni; |
| 873 | |
| 874 | const char* fVSVaryingName; |
| 875 | const char* fFSVaryingName; |
| 876 | |
| 877 | // @{ |
| 878 | /// Values last uploaded as uniforms |
| 879 | |
| 880 | SkScalar fCachedCenterX; |
| 881 | SkScalar fCachedCenterY; |
| 882 | SkScalar fCachedA; |
| 883 | SkScalar fCachedB; |
| 884 | SkScalar fCachedC; |
| 885 | |
| 886 | // @} |
| 887 | |
| 888 | private: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 889 | typedef GrGradientEffect::GLSLProcessor INHERITED; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 890 | |
| 891 | }; |
| 892 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 893 | void CircleInside2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 894 | GrProcessorKeyBuilder* b) const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 895 | CircleInside2PtConicalEffect::GLSLCircleInside2PtConicalProcessor::GenKey(*this, caps, b); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 896 | } |
| 897 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 898 | GrGLSLFragmentProcessor* CircleInside2PtConicalEffect::onCreateGLSLInstance() const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 899 | return new CircleInside2PtConicalEffect::GLSLCircleInside2PtConicalProcessor(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 900 | } |
| 901 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 902 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircleInside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 903 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 904 | /* |
| 905 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 906 | */ |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 907 | sk_sp<GrFragmentProcessor> CircleInside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 908 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 909 | 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] | 910 | SkPoint center2; |
| 911 | SkScalar radius2; |
| 912 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 913 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 914 | // Below makes sure that circle one is contained within circle two |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 915 | SkScalar increase = d->fRandom->nextUScalar1(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 916 | SkPoint diff = center2 - center1; |
| 917 | SkScalar diffLen = diff.length(); |
| 918 | radius2 = radius1 + diffLen + increase; |
| 919 | // If the circles are identical the factory will give us an empty shader. |
| 920 | } while (radius1 == radius2 && center1 == center2); |
| 921 | |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 922 | RandomGradientParams params(d->fRandom); |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 923 | auto shader = SkGradientShader::MakeTwoPointConical(center1, radius1, center2, radius2, |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 924 | params.fColors, params.fStops, |
| 925 | params.fColorCount, params.fTileMode); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 926 | SkMatrix viewMatrix = GrTest::TestMatrix(d->fRandom); |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 927 | auto dstColorSpace = GrTest::TestColorSpace(d->fRandom); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 928 | sk_sp<GrFragmentProcessor> fp = shader->asFragmentProcessor(SkShader::AsFPArgs( |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 929 | d->fContext, &viewMatrix, NULL, kNone_SkFilterQuality, dstColorSpace.get(), |
brianosman | 1638c0d | 2016-07-25 05:12:53 -0700 | [diff] [blame] | 930 | SkSourceGammaTreatment::kRespect)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 931 | GrAlwaysAssert(fp); |
joshualitt | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 932 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 933 | } |
| 934 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 935 | CircleInside2PtConicalEffect::GLSLCircleInside2PtConicalProcessor |
| 936 | ::GLSLCircleInside2PtConicalProcessor(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 937 | : fVSVaryingName(nullptr) |
| 938 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 939 | , fCachedCenterX(SK_ScalarMax) |
| 940 | , fCachedCenterY(SK_ScalarMax) |
| 941 | , fCachedA(SK_ScalarMax) |
| 942 | , fCachedB(SK_ScalarMax) |
| 943 | , fCachedC(SK_ScalarMax) {} |
| 944 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 945 | void CircleInside2PtConicalEffect::GLSLCircleInside2PtConicalProcessor::emitCode(EmitArgs& args) { |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 946 | const CircleInside2PtConicalEffect& ge = args.fFp.cast<CircleInside2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 947 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 948 | this->emitUniforms(uniformHandler, ge); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 949 | fCenterUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 950 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 951 | "Conical2FSCenter"); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 952 | fParamUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 953 | kVec3f_GrSLType, kDefault_GrSLPrecision, |
| 954 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 955 | SkString tName("t"); |
| 956 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 957 | GrGLSLShaderVar center = uniformHandler->getUniformVariable(fCenterUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 958 | // params.x = A |
| 959 | // params.y = B |
| 960 | // params.z = C |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 961 | GrGLSLShaderVar params = uniformHandler->getUniformVariable(fParamUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 962 | |
| 963 | // 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] | 964 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
bsalomon | 1a1aa93 | 2016-09-12 09:30:36 -0700 | [diff] [blame] | 965 | SkString coords2DString = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 966 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 967 | |
| 968 | // p = coords2D |
| 969 | // e = center end |
| 970 | // r = radius end |
| 971 | // A = dot(e, e) - r^2 + 2 * r - 1 |
| 972 | // B = (r -1) / A |
| 973 | // C = 1 / A |
| 974 | // d = dot(e, p) + B |
| 975 | // t = d +/- sqrt(d^2 - A * dot(p, p) + C) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 976 | fragBuilder->codeAppendf("\tfloat pDotp = dot(%s, %s);\n", coords2D, coords2D); |
| 977 | fragBuilder->codeAppendf("\tfloat d = dot(%s, %s) + %s.y;\n", coords2D, center.c_str(), |
| 978 | params.c_str()); |
| 979 | fragBuilder->codeAppendf("\tfloat %s = d + sqrt(d * d - %s.x * pDotp + %s.z);\n", |
| 980 | tName.c_str(), params.c_str(), params.c_str()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 981 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 982 | this->emitColor(fragBuilder, |
| 983 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 984 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 985 | ge, |
| 986 | tName.c_str(), |
| 987 | args.fOutputColor, |
| 988 | args.fInputColor, |
cdalton | 3f6f76f | 2016-04-11 12:18:09 -0700 | [diff] [blame] | 989 | args.fTexSamplers); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 990 | } |
| 991 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 992 | void CircleInside2PtConicalEffect::GLSLCircleInside2PtConicalProcessor::onSetData( |
| 993 | const GrGLSLProgramDataManager& pdman, |
| 994 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 995 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 996 | const CircleInside2PtConicalEffect& data = processor.cast<CircleInside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 997 | SkScalar centerX = data.centerX(); |
| 998 | SkScalar centerY = data.centerY(); |
| 999 | SkScalar A = data.A(); |
| 1000 | SkScalar B = data.B(); |
| 1001 | SkScalar C = data.C(); |
| 1002 | |
| 1003 | if (fCachedCenterX != centerX || fCachedCenterY != centerY || |
| 1004 | fCachedA != A || fCachedB != B || fCachedC != C) { |
| 1005 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1006 | pdman.set2f(fCenterUni, SkScalarToFloat(centerX), SkScalarToFloat(centerY)); |
| 1007 | pdman.set3f(fParamUni, SkScalarToFloat(A), SkScalarToFloat(B), SkScalarToFloat(C)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1008 | |
| 1009 | fCachedCenterX = centerX; |
| 1010 | fCachedCenterY = centerY; |
| 1011 | fCachedA = A; |
| 1012 | fCachedB = B; |
| 1013 | fCachedC = C; |
| 1014 | } |
| 1015 | } |
| 1016 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1017 | void CircleInside2PtConicalEffect::GLSLCircleInside2PtConicalProcessor::GenKey( |
| 1018 | const GrProcessor& processor, |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1019 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1020 | b->add32(GenBaseGradientKey(processor)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1021 | } |
| 1022 | |
| 1023 | ////////////////////////////////////////////////////////////////////////////// |
| 1024 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1025 | class CircleOutside2PtConicalEffect : public GrGradientEffect { |
| 1026 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1027 | class GLSLCircleOutside2PtConicalProcessor; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1028 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1029 | static sk_sp<GrFragmentProcessor> Make(const CreateArgs& args, const CircleConicalInfo& info) { |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 1030 | return sk_sp<GrFragmentProcessor>( |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1031 | new CircleOutside2PtConicalEffect(args, info)); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1032 | } |
| 1033 | |
| 1034 | virtual ~CircleOutside2PtConicalEffect() {} |
| 1035 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1036 | const char* name() const override { return "Two-Point Conical Gradient Outside"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1037 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1038 | SkScalar centerX() const { return fInfo.fCenterEnd.fX; } |
| 1039 | SkScalar centerY() const { return fInfo.fCenterEnd.fY; } |
| 1040 | SkScalar A() const { return fInfo.fA; } |
| 1041 | SkScalar B() const { return fInfo.fB; } |
| 1042 | SkScalar C() const { return fInfo.fC; } |
| 1043 | SkScalar tLimit() const { return fTLimit; } |
| 1044 | bool isFlipped() const { return fIsFlipped; } |
| 1045 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1046 | private: |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1047 | GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1048 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1049 | void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override; |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 1050 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1051 | bool onIsEqual(const GrFragmentProcessor& sBase) const override { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 1052 | const CircleOutside2PtConicalEffect& s = sBase.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1053 | return (INHERITED::onIsEqual(sBase) && |
| 1054 | this->fInfo.fCenterEnd == s.fInfo.fCenterEnd && |
| 1055 | this->fInfo.fA == s.fInfo.fA && |
| 1056 | this->fInfo.fB == s.fInfo.fB && |
| 1057 | this->fInfo.fC == s.fInfo.fC && |
| 1058 | this->fTLimit == s.fTLimit && |
| 1059 | this->fIsFlipped == s.fIsFlipped); |
| 1060 | } |
| 1061 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1062 | CircleOutside2PtConicalEffect(const CreateArgs& args, const CircleConicalInfo& info) |
| 1063 | : INHERITED(args), fInfo(info) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1064 | this->initClassID<CircleOutside2PtConicalEffect>(); |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1065 | const SkTwoPointConicalGradient& shader = |
| 1066 | *static_cast<const SkTwoPointConicalGradient*>(args.fShader); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1067 | if (shader.getStartRadius() != shader.getEndRadius()) { |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 1068 | fTLimit = shader.getStartRadius() / (shader.getStartRadius() - shader.getEndRadius()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1069 | } else { |
| 1070 | fTLimit = SK_ScalarMin; |
| 1071 | } |
| 1072 | |
| 1073 | fIsFlipped = shader.isFlippedGrad(); |
| 1074 | } |
| 1075 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1076 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1077 | |
| 1078 | const CircleConicalInfo fInfo; |
| 1079 | SkScalar fTLimit; |
| 1080 | bool fIsFlipped; |
| 1081 | |
| 1082 | typedef GrGradientEffect INHERITED; |
| 1083 | }; |
| 1084 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1085 | class CircleOutside2PtConicalEffect::GLSLCircleOutside2PtConicalProcessor |
| 1086 | : public GrGradientEffect::GLSLProcessor { |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1087 | public: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1088 | GLSLCircleOutside2PtConicalProcessor(const GrProcessor&); |
| 1089 | virtual ~GLSLCircleOutside2PtConicalProcessor() {} |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1090 | |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1091 | virtual void emitCode(EmitArgs&) override; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1092 | |
jvanverth | cfc1886 | 2015-04-28 08:48:20 -0700 | [diff] [blame] | 1093 | static void GenKey(const GrProcessor&, const GrGLSLCaps& caps, GrProcessorKeyBuilder* b); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1094 | |
| 1095 | protected: |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1096 | void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override; |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1097 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1098 | UniformHandle fCenterUni; |
| 1099 | UniformHandle fParamUni; |
| 1100 | |
| 1101 | const char* fVSVaryingName; |
| 1102 | const char* fFSVaryingName; |
| 1103 | |
| 1104 | bool fIsFlipped; |
| 1105 | |
| 1106 | // @{ |
| 1107 | /// Values last uploaded as uniforms |
| 1108 | |
| 1109 | SkScalar fCachedCenterX; |
| 1110 | SkScalar fCachedCenterY; |
| 1111 | SkScalar fCachedA; |
| 1112 | SkScalar fCachedB; |
| 1113 | SkScalar fCachedC; |
| 1114 | SkScalar fCachedTLimit; |
| 1115 | |
| 1116 | // @} |
| 1117 | |
| 1118 | private: |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1119 | typedef GrGradientEffect::GLSLProcessor INHERITED; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1120 | |
| 1121 | }; |
| 1122 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1123 | void CircleOutside2PtConicalEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| 1124 | GrProcessorKeyBuilder* b) const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1125 | CircleOutside2PtConicalEffect::GLSLCircleOutside2PtConicalProcessor::GenKey(*this, caps, b); |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 1126 | } |
| 1127 | |
egdaniel | 57d3b03 | 2015-11-13 11:57:27 -0800 | [diff] [blame] | 1128 | GrGLSLFragmentProcessor* CircleOutside2PtConicalEffect::onCreateGLSLInstance() const { |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1129 | return new CircleOutside2PtConicalEffect::GLSLCircleOutside2PtConicalProcessor(*this); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1130 | } |
| 1131 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1132 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircleOutside2PtConicalEffect); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1133 | |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 1134 | /* |
| 1135 | * All Two point conical gradient test create functions may occasionally create edge case shaders |
| 1136 | */ |
bungeman | 06ca8ec | 2016-06-09 08:01:03 -0700 | [diff] [blame] | 1137 | sk_sp<GrFragmentProcessor> CircleOutside2PtConicalEffect::TestCreate(GrProcessorTestData* d) { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1138 | SkPoint center1 = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}; |
| 1139 | 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] | 1140 | SkPoint center2; |
| 1141 | SkScalar radius2; |
| 1142 | SkScalar diffLen; |
| 1143 | do { |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1144 | center2.set(d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1145 | // If the circles share a center than we can't be in the outside case |
| 1146 | } while (center1 == center2); |
joshualitt | 0125847 | 2014-09-22 10:29:30 -0700 | [diff] [blame] | 1147 | SkPoint diff = center2 - center1; |
| 1148 | diffLen = diff.length(); |
| 1149 | // Below makes sure that circle one is not contained within circle two |
| 1150 | // and have radius2 >= radius to match sorting on cpu side |
joshualitt | 0067ff5 | 2015-07-08 14:26:19 -0700 | [diff] [blame] | 1151 | radius2 = radius1 + d->fRandom->nextRangeF(0.f, diffLen); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1152 | |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 1153 | RandomGradientParams params(d->fRandom); |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 1154 | auto shader = SkGradientShader::MakeTwoPointConical(center1, radius1, center2, radius2, |
Brian Osman | 3f74860 | 2016-10-03 18:29:03 -0400 | [diff] [blame^] | 1155 | params.fColors, params.fStops, |
| 1156 | params.fColorCount, params.fTileMode); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 1157 | SkMatrix viewMatrix = GrTest::TestMatrix(d->fRandom); |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 1158 | auto dstColorSpace = GrTest::TestColorSpace(d->fRandom); |
brianosman | 839345d | 2016-07-22 11:04:53 -0700 | [diff] [blame] | 1159 | sk_sp<GrFragmentProcessor> fp = shader->asFragmentProcessor(SkShader::AsFPArgs( |
Brian Osman | 0d9dfe9 | 2016-10-03 15:24:44 -0400 | [diff] [blame] | 1160 | d->fContext, &viewMatrix, NULL, kNone_SkFilterQuality, dstColorSpace.get(), |
brianosman | 1638c0d | 2016-07-25 05:12:53 -0700 | [diff] [blame] | 1161 | SkSourceGammaTreatment::kRespect)); |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 1162 | GrAlwaysAssert(fp); |
joshualitt | 8ca93e7 | 2015-07-08 06:51:43 -0700 | [diff] [blame] | 1163 | return fp; |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1164 | } |
| 1165 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1166 | CircleOutside2PtConicalEffect::GLSLCircleOutside2PtConicalProcessor |
| 1167 | ::GLSLCircleOutside2PtConicalProcessor(const GrProcessor& processor) |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1168 | : fVSVaryingName(nullptr) |
| 1169 | , fFSVaryingName(nullptr) |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1170 | , fCachedCenterX(SK_ScalarMax) |
| 1171 | , fCachedCenterY(SK_ScalarMax) |
| 1172 | , fCachedA(SK_ScalarMax) |
| 1173 | , fCachedB(SK_ScalarMax) |
| 1174 | , fCachedC(SK_ScalarMax) |
| 1175 | , fCachedTLimit(SK_ScalarMax) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1176 | const CircleOutside2PtConicalEffect& data = processor.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1177 | fIsFlipped = data.isFlipped(); |
| 1178 | } |
| 1179 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1180 | void CircleOutside2PtConicalEffect::GLSLCircleOutside2PtConicalProcessor::emitCode(EmitArgs& args) { |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 1181 | const CircleOutside2PtConicalEffect& ge = args.fFp.cast<CircleOutside2PtConicalEffect>(); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1182 | GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| 1183 | this->emitUniforms(uniformHandler, ge); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 1184 | fCenterUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1185 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
| 1186 | "Conical2FSCenter"); |
cdalton | 5e58cee | 2016-02-11 12:49:47 -0800 | [diff] [blame] | 1187 | fParamUni = uniformHandler->addUniform(kFragment_GrShaderFlag, |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1188 | kVec4f_GrSLType, kDefault_GrSLPrecision, |
| 1189 | "Conical2FSParams"); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1190 | SkString tName("t"); |
| 1191 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1192 | GrGLSLShaderVar center = uniformHandler->getUniformVariable(fCenterUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1193 | // params.x = A |
| 1194 | // params.y = B |
| 1195 | // params.z = C |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1196 | GrGLSLShaderVar params = uniformHandler->getUniformVariable(fParamUni); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1197 | |
| 1198 | // 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] | 1199 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
bsalomon | 1a1aa93 | 2016-09-12 09:30:36 -0700 | [diff] [blame] | 1200 | SkString coords2DString = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]); |
skia.committer@gmail.com | ede0c5c | 2014-04-23 03:04:11 +0000 | [diff] [blame] | 1201 | const char* coords2D = coords2DString.c_str(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1202 | |
| 1203 | // output will default to transparent black (we simply won't write anything |
| 1204 | // else to it if invalid, instead of discarding or returning prematurely) |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1205 | 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] | 1206 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1207 | // p = coords2D |
| 1208 | // e = center end |
| 1209 | // r = radius end |
| 1210 | // A = dot(e, e) - r^2 + 2 * r - 1 |
| 1211 | // B = (r -1) / A |
| 1212 | // C = 1 / A |
| 1213 | // d = dot(e, p) + B |
| 1214 | // t = d +/- sqrt(d^2 - A * dot(p, p) + C) |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1215 | |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1216 | fragBuilder->codeAppendf("\tfloat pDotp = dot(%s, %s);\n", coords2D, coords2D); |
| 1217 | fragBuilder->codeAppendf("\tfloat d = dot(%s, %s) + %s.y;\n", coords2D, center.c_str(), |
| 1218 | params.c_str()); |
| 1219 | fragBuilder->codeAppendf("\tfloat deter = d * d - %s.x * pDotp + %s.z;\n", params.c_str(), |
| 1220 | params.c_str()); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1221 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1222 | // Must check to see if we flipped the circle order (to make sure start radius < end radius) |
| 1223 | // If so we must also flip sign on sqrt |
| 1224 | if (!fIsFlipped) { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1225 | 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] | 1226 | } else { |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1227 | 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] | 1228 | } |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1229 | |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1230 | fragBuilder->codeAppendf("\tif (%s >= %s.w && deter >= 0.0) {\n", |
| 1231 | tName.c_str(), params.c_str()); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1232 | fragBuilder->codeAppend("\t\t"); |
egdaniel | 7ea439b | 2015-12-03 09:20:44 -0800 | [diff] [blame] | 1233 | this->emitColor(fragBuilder, |
| 1234 | uniformHandler, |
egdaniel | a2e3e0f | 2015-11-19 07:23:45 -0800 | [diff] [blame] | 1235 | args.fGLSLCaps, |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1236 | ge, |
| 1237 | tName.c_str(), |
| 1238 | args.fOutputColor, |
| 1239 | args.fInputColor, |
cdalton | 3f6f76f | 2016-04-11 12:18:09 -0700 | [diff] [blame] | 1240 | args.fTexSamplers); |
egdaniel | 4ca2e60 | 2015-11-18 08:01:26 -0800 | [diff] [blame] | 1241 | fragBuilder->codeAppend("\t}\n"); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1242 | } |
| 1243 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1244 | void CircleOutside2PtConicalEffect::GLSLCircleOutside2PtConicalProcessor::onSetData( |
| 1245 | const GrGLSLProgramDataManager& pdman, |
egdaniel | 018fb62 | 2015-10-28 07:26:40 -0700 | [diff] [blame] | 1246 | const GrProcessor& processor) { |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 1247 | INHERITED::onSetData(pdman, processor); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1248 | const CircleOutside2PtConicalEffect& data = processor.cast<CircleOutside2PtConicalEffect>(); |
commit-bot@chromium.org | 44d83c1 | 2014-04-21 13:10:25 +0000 | [diff] [blame] | 1249 | SkASSERT(data.isFlipped() == fIsFlipped); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1250 | SkScalar centerX = data.centerX(); |
| 1251 | SkScalar centerY = data.centerY(); |
| 1252 | SkScalar A = data.A(); |
| 1253 | SkScalar B = data.B(); |
| 1254 | SkScalar C = data.C(); |
| 1255 | SkScalar tLimit = data.tLimit(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1256 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1257 | if (fCachedCenterX != centerX || fCachedCenterY != centerY || |
| 1258 | fCachedA != A || fCachedB != B || fCachedC != C || fCachedTLimit != tLimit) { |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1259 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 1260 | pdman.set2f(fCenterUni, SkScalarToFloat(centerX), SkScalarToFloat(centerY)); |
| 1261 | pdman.set4f(fParamUni, SkScalarToFloat(A), SkScalarToFloat(B), SkScalarToFloat(C), |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1262 | SkScalarToFloat(tLimit)); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1263 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1264 | fCachedCenterX = centerX; |
| 1265 | fCachedCenterY = centerY; |
| 1266 | fCachedA = A; |
| 1267 | fCachedB = B; |
| 1268 | fCachedC = C; |
| 1269 | fCachedTLimit = tLimit; |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1270 | } |
| 1271 | } |
| 1272 | |
fmenozzi | 55d318d | 2016-08-09 08:05:57 -0700 | [diff] [blame] | 1273 | void CircleOutside2PtConicalEffect::GLSLCircleOutside2PtConicalProcessor::GenKey( |
| 1274 | const GrProcessor& processor, |
| 1275 | const GrGLSLCaps&, GrProcessorKeyBuilder* b) { |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 1276 | uint32_t* key = b->add32n(2); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 1277 | key[0] = GenBaseGradientKey(processor); |
| 1278 | key[1] = processor.cast<CircleOutside2PtConicalEffect>().isFlipped(); |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1279 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1280 | |
| 1281 | ////////////////////////////////////////////////////////////////////////////// |
| 1282 | |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1283 | sk_sp<GrFragmentProcessor> Gr2PtConicalGradientEffect::Make( |
| 1284 | const GrGradientEffect::CreateArgs& args) { |
| 1285 | const SkTwoPointConicalGradient& shader = |
| 1286 | *static_cast<const SkTwoPointConicalGradient*>(args.fShader); |
| 1287 | |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1288 | SkMatrix matrix; |
| 1289 | if (!shader.getLocalMatrix().invert(&matrix)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1290 | return nullptr; |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1291 | } |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1292 | if (args.fMatrix) { |
commit-bot@chromium.org | 96fb748 | 2014-05-09 20:28:11 +0000 | [diff] [blame] | 1293 | SkMatrix inv; |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1294 | if (!args.fMatrix->invert(&inv)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1295 | return nullptr; |
commit-bot@chromium.org | 96fb748 | 2014-05-09 20:28:11 +0000 | [diff] [blame] | 1296 | } |
| 1297 | matrix.postConcat(inv); |
| 1298 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1299 | |
brianosman | b9c5137 | 2016-09-15 11:09:45 -0700 | [diff] [blame] | 1300 | GrGradientEffect::CreateArgs newArgs(args.fContext, args.fShader, &matrix, args.fTileMode, |
| 1301 | std::move(args.fColorSpaceXform), args.fGammaCorrect); |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1302 | |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1303 | if (shader.getStartRadius() < kErrorTol) { |
| 1304 | SkScalar focalX; |
| 1305 | ConicalType type = set_matrix_focal_conical(shader, &matrix, &focalX); |
| 1306 | if (type == kInside_ConicalType) { |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1307 | return FocalInside2PtConicalEffect::Make(newArgs, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1308 | } else if(type == kEdge_ConicalType) { |
| 1309 | set_matrix_edge_conical(shader, &matrix); |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1310 | return Edge2PtConicalEffect::Make(newArgs); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1311 | } else { |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1312 | return FocalOutside2PtConicalEffect::Make(newArgs, focalX); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1313 | } |
| 1314 | } |
| 1315 | |
| 1316 | CircleConicalInfo info; |
| 1317 | ConicalType type = set_matrix_circle_conical(shader, &matrix, &info); |
| 1318 | |
| 1319 | if (type == kInside_ConicalType) { |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1320 | return CircleInside2PtConicalEffect::Make(newArgs, info); |
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); |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1323 | return Edge2PtConicalEffect::Make(newArgs); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1324 | } else { |
brianosman | 9557c27 | 2016-09-15 06:59:15 -0700 | [diff] [blame] | 1325 | return CircleOutside2PtConicalEffect::Make(newArgs, info); |
commit-bot@chromium.org | c8379d7 | 2014-04-22 20:56:37 +0000 | [diff] [blame] | 1326 | } |
commit-bot@chromium.org | 2af1a2d | 2014-04-04 13:50:50 +0000 | [diff] [blame] | 1327 | } |
| 1328 | |
commit-bot@chromium.org | aa64fbf | 2014-04-03 14:59:19 +0000 | [diff] [blame] | 1329 | #endif |