commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +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 | */ |
| 7 | |
| 8 | #include "GrRRectEffect.h" |
| 9 | |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 10 | #include "GrConvexPolyEffect.h" |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 11 | #include "GrFragmentProcessor.h" |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame] | 12 | #include "GrInvariantOutput.h" |
commit-bot@chromium.org | 3eedb80 | 2014-03-28 15:58:31 +0000 | [diff] [blame] | 13 | #include "GrOvalEffect.h" |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 14 | #include "SkRRect.h" |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 15 | #include "gl/GrGLProcessor.h" |
| 16 | #include "gl/GrGLSL.h" |
| 17 | #include "gl/builders/GrGLProgramBuilder.h" |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 18 | |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 19 | // The effects defined here only handle rrect radii >= kRadiusMin. |
| 20 | static const SkScalar kRadiusMin = SK_ScalarHalf; |
| 21 | |
| 22 | ////////////////////////////////////////////////////////////////////////////// |
| 23 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 24 | class CircularRRectEffect : public GrFragmentProcessor { |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 25 | public: |
skia.committer@gmail.com | f1f66c0 | 2014-03-05 03:02:06 +0000 | [diff] [blame] | 26 | |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 27 | enum CornerFlags { |
| 28 | kTopLeft_CornerFlag = (1 << SkRRect::kUpperLeft_Corner), |
| 29 | kTopRight_CornerFlag = (1 << SkRRect::kUpperRight_Corner), |
| 30 | kBottomRight_CornerFlag = (1 << SkRRect::kLowerRight_Corner), |
| 31 | kBottomLeft_CornerFlag = (1 << SkRRect::kLowerLeft_Corner), |
| 32 | |
| 33 | kLeft_CornerFlags = kTopLeft_CornerFlag | kBottomLeft_CornerFlag, |
| 34 | kTop_CornerFlags = kTopLeft_CornerFlag | kTopRight_CornerFlag, |
| 35 | kRight_CornerFlags = kTopRight_CornerFlag | kBottomRight_CornerFlag, |
| 36 | kBottom_CornerFlags = kBottomLeft_CornerFlag | kBottomRight_CornerFlag, |
| 37 | |
| 38 | kAll_CornerFlags = kTopLeft_CornerFlag | kTopRight_CornerFlag | |
| 39 | kBottomLeft_CornerFlag | kBottomRight_CornerFlag, |
| 40 | |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 41 | kNone_CornerFlags = 0 |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 42 | }; |
| 43 | |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 44 | // The flags are used to indicate which corners are circluar (unflagged corners are assumed to |
| 45 | // be square). |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 46 | static GrFragmentProcessor* Create(GrPrimitiveEdgeType, uint32_t circularCornerFlags, |
| 47 | const SkRRect&); |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 48 | |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 49 | virtual ~CircularRRectEffect() {}; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 50 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 51 | const char* name() const override { return "CircularRRect"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 52 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 53 | void getGLProcessorKey(const GrGLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 54 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 55 | GrGLFragmentProcessor* createGLInstance() const override; |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 56 | |
| 57 | const SkRRect& getRRect() const { return fRRect; } |
| 58 | |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 59 | uint32_t getCircularCornerFlags() const { return fCircularCornerFlags; } |
skia.committer@gmail.com | 06acb58 | 2014-03-06 03:02:32 +0000 | [diff] [blame] | 60 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 61 | GrPrimitiveEdgeType getEdgeType() const { return fEdgeType; } |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 62 | |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 63 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 64 | CircularRRectEffect(GrPrimitiveEdgeType, uint32_t circularCornerFlags, const SkRRect&); |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 65 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 66 | bool onIsEqual(const GrFragmentProcessor& other) const override; |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 67 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 68 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override; |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 69 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 70 | SkRRect fRRect; |
| 71 | GrPrimitiveEdgeType fEdgeType; |
| 72 | uint32_t fCircularCornerFlags; |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 73 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 74 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 75 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 76 | typedef GrFragmentProcessor INHERITED; |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 77 | }; |
| 78 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 79 | GrFragmentProcessor* CircularRRectEffect::Create(GrPrimitiveEdgeType edgeType, |
| 80 | uint32_t circularCornerFlags, |
| 81 | const SkRRect& rrect) { |
| 82 | if (kFillAA_GrProcessorEdgeType != edgeType && kInverseFillAA_GrProcessorEdgeType != edgeType) { |
commit-bot@chromium.org | 3eedb80 | 2014-03-28 15:58:31 +0000 | [diff] [blame] | 83 | return NULL; |
| 84 | } |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 85 | return SkNEW_ARGS(CircularRRectEffect, (edgeType, circularCornerFlags, rrect)); |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 86 | } |
| 87 | |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame] | 88 | void CircularRRectEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame] | 89 | inout->mulByUnknownSingleComponent(); |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 90 | } |
| 91 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 92 | CircularRRectEffect::CircularRRectEffect(GrPrimitiveEdgeType edgeType, uint32_t circularCornerFlags, |
| 93 | const SkRRect& rrect) |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 94 | : fRRect(rrect) |
commit-bot@chromium.org | fbde87f | 2014-03-04 16:25:34 +0000 | [diff] [blame] | 95 | , fEdgeType(edgeType) |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 96 | , fCircularCornerFlags(circularCornerFlags) { |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 97 | this->initClassID<CircularRRectEffect>(); |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 98 | this->setWillReadFragmentPosition(); |
| 99 | } |
| 100 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 101 | bool CircularRRectEffect::onIsEqual(const GrFragmentProcessor& other) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 102 | const CircularRRectEffect& crre = other.cast<CircularRRectEffect>(); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 103 | // The corner flags are derived from fRRect, so no need to check them. |
| 104 | return fEdgeType == crre.fEdgeType && fRRect == crre.fRRect; |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 105 | } |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 106 | |
| 107 | ////////////////////////////////////////////////////////////////////////////// |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 108 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 109 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(CircularRRectEffect); |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 110 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 111 | GrFragmentProcessor* CircularRRectEffect::TestCreate(SkRandom* random, |
| 112 | GrContext*, |
| 113 | const GrDrawTargetCaps& caps, |
| 114 | GrTexture*[]) { |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 115 | SkScalar w = random->nextRangeScalar(20.f, 1000.f); |
| 116 | SkScalar h = random->nextRangeScalar(20.f, 1000.f); |
| 117 | SkScalar r = random->nextRangeF(kRadiusMin, 9.f); |
| 118 | SkRRect rrect; |
| 119 | rrect.setRectXY(SkRect::MakeWH(w, h), r, r); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 120 | GrFragmentProcessor* fp; |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 121 | do { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 122 | GrPrimitiveEdgeType et = |
| 123 | (GrPrimitiveEdgeType)random->nextULessThan(kGrProcessorEdgeTypeCnt); |
| 124 | fp = GrRRectEffect::Create(et, rrect); |
| 125 | } while (NULL == fp); |
| 126 | return fp; |
commit-bot@chromium.org | e528089 | 2014-02-21 17:52:29 +0000 | [diff] [blame] | 127 | } |
| 128 | |
| 129 | ////////////////////////////////////////////////////////////////////////////// |
| 130 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 131 | class GLCircularRRectEffect : public GrGLFragmentProcessor { |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 132 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 133 | GLCircularRRectEffect(const GrProcessor&); |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 134 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 135 | virtual void emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 136 | const GrFragmentProcessor& fp, |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 137 | const char* outputColor, |
| 138 | const char* inputColor, |
| 139 | const TransformedCoordsArray&, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 140 | const TextureSamplerArray&) override; |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 141 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 142 | static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilder*); |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 143 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 144 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 145 | |
| 146 | private: |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 147 | GrGLProgramDataManager::UniformHandle fInnerRectUniform; |
| 148 | GrGLProgramDataManager::UniformHandle fRadiusPlusHalfUniform; |
| 149 | SkRRect fPrevRRect; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 150 | typedef GrGLFragmentProcessor INHERITED; |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 151 | }; |
| 152 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 153 | GLCircularRRectEffect::GLCircularRRectEffect(const GrProcessor& ) { |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 154 | fPrevRRect.setEmpty(); |
| 155 | } |
| 156 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 157 | void GLCircularRRectEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | 267ce48 | 2014-11-25 14:52:21 -0800 | [diff] [blame] | 158 | const GrFragmentProcessor& fp, |
| 159 | const char* outputColor, |
| 160 | const char* inputColor, |
| 161 | const TransformedCoordsArray&, |
| 162 | const TextureSamplerArray& samplers) { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 163 | const CircularRRectEffect& crre = fp.cast<CircularRRectEffect>(); |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 164 | const char *rectName; |
| 165 | const char *radiusPlusHalfName; |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 166 | // The inner rect is the rrect bounds inset by the radius. Its left, top, right, and bottom |
| 167 | // edges correspond to components x, y, z, and w, respectively. When a side of the rrect has |
| 168 | // only rectangular corners, that side's value corresponds to the rect edge's value outset by |
| 169 | // half a pixel. |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 170 | fInnerRectUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 171 | kVec4f_GrSLType, kDefault_GrSLPrecision, |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 172 | "innerRect", |
| 173 | &rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 174 | fRadiusPlusHalfUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 175 | kFloat_GrSLType, kDefault_GrSLPrecision, |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 176 | "radiusPlusHalf", |
| 177 | &radiusPlusHalfName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 178 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 179 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 180 | const char* fragmentPos = fsBuilder->fragmentPosition(); |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 181 | // At each quarter-circle corner we compute a vector that is the offset of the fragment position |
| 182 | // from the circle center. The vector is pinned in x and y to be in the quarter-plane relevant |
| 183 | // to that corner. This means that points near the interior near the rrect top edge will have |
| 184 | // a vector that points straight up for both the TL left and TR corners. Computing an |
| 185 | // alpha from this vector at either the TR or TL corner will give the correct result. Similarly, |
| 186 | // fragments near the other three edges will get the correct AA. Fragments in the interior of |
| 187 | // the rrect will have a (0,0) vector at all four corners. So long as the radius > 0.5 they will |
| 188 | // correctly produce an alpha value of 1 at all four corners. We take the min of all the alphas. |
| 189 | // The code below is a simplified version of the above that performs maxs on the vector |
| 190 | // components before computing distances and alpha values so that only one distance computation |
| 191 | // need be computed to determine the min alpha. |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 192 | // |
| 193 | // For the cases where one half of the rrect is rectangular we drop one of the x or y |
| 194 | // computations, compute a separate rect edge alpha for the rect side, and mul the two computed |
| 195 | // alphas together. |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 196 | switch (crre.getCircularCornerFlags()) { |
| 197 | case CircularRRectEffect::kAll_CornerFlags: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 198 | fsBuilder->codeAppendf("\t\tvec2 dxy0 = %s.xy - %s.xy;\n", rectName, fragmentPos); |
| 199 | fsBuilder->codeAppendf("\t\tvec2 dxy1 = %s.xy - %s.zw;\n", fragmentPos, rectName); |
| 200 | fsBuilder->codeAppend("\t\tvec2 dxy = max(max(dxy0, dxy1), 0.0);\n"); |
| 201 | fsBuilder->codeAppendf("\t\tfloat alpha = clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 202 | radiusPlusHalfName); |
| 203 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 204 | case CircularRRectEffect::kTopLeft_CornerFlag: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 205 | fsBuilder->codeAppendf("\t\tvec2 dxy = max(%s.xy - %s.xy, 0.0);\n", |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 206 | rectName, fragmentPos); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 207 | fsBuilder->codeAppendf("\t\tfloat rightAlpha = clamp(%s.z - %s.x, 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 208 | rectName, fragmentPos); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 209 | fsBuilder->codeAppendf("\t\tfloat bottomAlpha = clamp(%s.w - %s.y, 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 210 | rectName, fragmentPos); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 211 | fsBuilder->codeAppendf("\t\tfloat alpha = bottomAlpha * rightAlpha * clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 212 | radiusPlusHalfName); |
| 213 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 214 | case CircularRRectEffect::kTopRight_CornerFlag: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 215 | fsBuilder->codeAppendf("\t\tvec2 dxy = max(vec2(%s.x - %s.z, %s.y - %s.y), 0.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 216 | fragmentPos, rectName, rectName, fragmentPos); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 217 | fsBuilder->codeAppendf("\t\tfloat leftAlpha = clamp(%s.x - %s.x, 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 218 | fragmentPos, rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 219 | fsBuilder->codeAppendf("\t\tfloat bottomAlpha = clamp(%s.w - %s.y, 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 220 | rectName, fragmentPos); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 221 | fsBuilder->codeAppendf("\t\tfloat alpha = bottomAlpha * leftAlpha * clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 222 | radiusPlusHalfName); |
| 223 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 224 | case CircularRRectEffect::kBottomRight_CornerFlag: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 225 | fsBuilder->codeAppendf("\t\tvec2 dxy = max(%s.xy - %s.zw, 0.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 226 | fragmentPos, rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 227 | fsBuilder->codeAppendf("\t\tfloat leftAlpha = clamp(%s.x - %s.x, 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 228 | fragmentPos, rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 229 | fsBuilder->codeAppendf("\t\tfloat topAlpha = clamp(%s.y - %s.y, 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 230 | fragmentPos, rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 231 | fsBuilder->codeAppendf("\t\tfloat alpha = topAlpha * leftAlpha * clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 232 | radiusPlusHalfName); |
| 233 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 234 | case CircularRRectEffect::kBottomLeft_CornerFlag: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 235 | fsBuilder->codeAppendf("\t\tvec2 dxy = max(vec2(%s.x - %s.x, %s.y - %s.w), 0.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 236 | rectName, fragmentPos, fragmentPos, rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 237 | fsBuilder->codeAppendf("\t\tfloat rightAlpha = clamp(%s.z - %s.x, 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 238 | rectName, fragmentPos); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 239 | fsBuilder->codeAppendf("\t\tfloat topAlpha = clamp(%s.y - %s.y, 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 240 | fragmentPos, rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 241 | fsBuilder->codeAppendf("\t\tfloat alpha = topAlpha * rightAlpha * clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 242 | radiusPlusHalfName); |
| 243 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 244 | case CircularRRectEffect::kLeft_CornerFlags: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 245 | fsBuilder->codeAppendf("\t\tvec2 dxy0 = %s.xy - %s.xy;\n", rectName, fragmentPos); |
| 246 | fsBuilder->codeAppendf("\t\tfloat dy1 = %s.y - %s.w;\n", fragmentPos, rectName); |
| 247 | fsBuilder->codeAppend("\t\tvec2 dxy = max(vec2(dxy0.x, max(dxy0.y, dy1)), 0.0);\n"); |
| 248 | fsBuilder->codeAppendf("\t\tfloat rightAlpha = clamp(%s.z - %s.x, 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 249 | rectName, fragmentPos); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 250 | fsBuilder->codeAppendf("\t\tfloat alpha = rightAlpha * clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 251 | radiusPlusHalfName); |
| 252 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 253 | case CircularRRectEffect::kTop_CornerFlags: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 254 | fsBuilder->codeAppendf("\t\tvec2 dxy0 = %s.xy - %s.xy;\n", rectName, fragmentPos); |
| 255 | fsBuilder->codeAppendf("\t\tfloat dx1 = %s.x - %s.z;\n", fragmentPos, rectName); |
| 256 | fsBuilder->codeAppend("\t\tvec2 dxy = max(vec2(max(dxy0.x, dx1), dxy0.y), 0.0);\n"); |
| 257 | fsBuilder->codeAppendf("\t\tfloat bottomAlpha = clamp(%s.w - %s.y, 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 258 | rectName, fragmentPos); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 259 | fsBuilder->codeAppendf("\t\tfloat alpha = bottomAlpha * clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 260 | radiusPlusHalfName); |
| 261 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 262 | case CircularRRectEffect::kRight_CornerFlags: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 263 | fsBuilder->codeAppendf("\t\tfloat dy0 = %s.y - %s.y;\n", rectName, fragmentPos); |
| 264 | fsBuilder->codeAppendf("\t\tvec2 dxy1 = %s.xy - %s.zw;\n", fragmentPos, rectName); |
| 265 | fsBuilder->codeAppend("\t\tvec2 dxy = max(vec2(dxy1.x, max(dy0, dxy1.y)), 0.0);\n"); |
| 266 | fsBuilder->codeAppendf("\t\tfloat leftAlpha = clamp(%s.x - %s.x, 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 267 | fragmentPos, rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 268 | fsBuilder->codeAppendf("\t\tfloat alpha = leftAlpha * clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 269 | radiusPlusHalfName); |
| 270 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 271 | case CircularRRectEffect::kBottom_CornerFlags: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 272 | fsBuilder->codeAppendf("\t\tfloat dx0 = %s.x - %s.x;\n", rectName, fragmentPos); |
| 273 | fsBuilder->codeAppendf("\t\tvec2 dxy1 = %s.xy - %s.zw;\n", fragmentPos, rectName); |
| 274 | fsBuilder->codeAppend("\t\tvec2 dxy = max(vec2(max(dx0, dxy1.x), dxy1.y), 0.0);\n"); |
| 275 | fsBuilder->codeAppendf("\t\tfloat topAlpha = clamp(%s.y - %s.y, 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 276 | fragmentPos, rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 277 | fsBuilder->codeAppendf("\t\tfloat alpha = topAlpha * clamp(%s - length(dxy), 0.0, 1.0);\n", |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 278 | radiusPlusHalfName); |
| 279 | break; |
| 280 | } |
skia.committer@gmail.com | 06acb58 | 2014-03-06 03:02:32 +0000 | [diff] [blame] | 281 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 282 | if (kInverseFillAA_GrProcessorEdgeType == crre.getEdgeType()) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 283 | fsBuilder->codeAppend("\t\talpha = 1.0 - alpha;\n"); |
commit-bot@chromium.org | fbde87f | 2014-03-04 16:25:34 +0000 | [diff] [blame] | 284 | } |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 285 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 286 | fsBuilder->codeAppendf("\t\t%s = %s;\n", outputColor, |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 287 | (GrGLSLExpr4(inputColor) * GrGLSLExpr1("alpha")).c_str()); |
| 288 | } |
| 289 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 290 | void GLCircularRRectEffect::GenKey(const GrProcessor& processor, const GrGLCaps&, |
| 291 | GrProcessorKeyBuilder* b) { |
| 292 | const CircularRRectEffect& crre = processor.cast<CircularRRectEffect>(); |
| 293 | GR_STATIC_ASSERT(kGrProcessorEdgeTypeCnt <= 8); |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 294 | b->add32((crre.getCircularCornerFlags() << 3) | crre.getEdgeType()); |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 295 | } |
| 296 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 297 | void GLCircularRRectEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 298 | const GrProcessor& processor) { |
| 299 | const CircularRRectEffect& crre = processor.cast<CircularRRectEffect>(); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 300 | const SkRRect& rrect = crre.getRRect(); |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 301 | if (rrect != fPrevRRect) { |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 302 | SkRect rect = rrect.getBounds(); |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 303 | SkScalar radius = 0; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 304 | switch (crre.getCircularCornerFlags()) { |
| 305 | case CircularRRectEffect::kAll_CornerFlags: |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 306 | SkASSERT(rrect.isSimpleCircular()); |
| 307 | radius = rrect.getSimpleRadii().fX; |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 308 | SkASSERT(radius >= kRadiusMin); |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 309 | rect.inset(radius, radius); |
| 310 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 311 | case CircularRRectEffect::kTopLeft_CornerFlag: |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 312 | radius = rrect.radii(SkRRect::kUpperLeft_Corner).fX; |
| 313 | rect.fLeft += radius; |
| 314 | rect.fTop += radius; |
| 315 | rect.fRight += 0.5f; |
| 316 | rect.fBottom += 0.5f; |
| 317 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 318 | case CircularRRectEffect::kTopRight_CornerFlag: |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 319 | radius = rrect.radii(SkRRect::kUpperRight_Corner).fX; |
bsalomon@google.com | de9f251 | 2014-03-11 17:09:17 +0000 | [diff] [blame] | 320 | rect.fLeft -= 0.5f; |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 321 | rect.fTop += radius; |
| 322 | rect.fRight -= radius; |
| 323 | rect.fBottom += 0.5f; |
| 324 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 325 | case CircularRRectEffect::kBottomRight_CornerFlag: |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 326 | radius = rrect.radii(SkRRect::kLowerRight_Corner).fX; |
bsalomon@google.com | de9f251 | 2014-03-11 17:09:17 +0000 | [diff] [blame] | 327 | rect.fLeft -= 0.5f; |
| 328 | rect.fTop -= 0.5f; |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 329 | rect.fRight -= radius; |
| 330 | rect.fBottom -= radius; |
| 331 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 332 | case CircularRRectEffect::kBottomLeft_CornerFlag: |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 333 | radius = rrect.radii(SkRRect::kLowerLeft_Corner).fX; |
| 334 | rect.fLeft += radius; |
bsalomon@google.com | de9f251 | 2014-03-11 17:09:17 +0000 | [diff] [blame] | 335 | rect.fTop -= 0.5f; |
| 336 | rect.fRight += 0.5f; |
commit-bot@chromium.org | c5c748c | 2014-03-11 15:54:51 +0000 | [diff] [blame] | 337 | rect.fBottom -= radius; |
| 338 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 339 | case CircularRRectEffect::kLeft_CornerFlags: |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 340 | radius = rrect.radii(SkRRect::kUpperLeft_Corner).fX; |
| 341 | rect.fLeft += radius; |
| 342 | rect.fTop += radius; |
| 343 | rect.fRight += 0.5f; |
| 344 | rect.fBottom -= radius; |
| 345 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 346 | case CircularRRectEffect::kTop_CornerFlags: |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 347 | radius = rrect.radii(SkRRect::kUpperLeft_Corner).fX; |
| 348 | rect.fLeft += radius; |
| 349 | rect.fTop += radius; |
| 350 | rect.fRight -= radius; |
| 351 | rect.fBottom += 0.5f; |
| 352 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 353 | case CircularRRectEffect::kRight_CornerFlags: |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 354 | radius = rrect.radii(SkRRect::kUpperRight_Corner).fX; |
| 355 | rect.fLeft -= 0.5f; |
| 356 | rect.fTop += radius; |
| 357 | rect.fRight -= radius; |
| 358 | rect.fBottom -= radius; |
| 359 | break; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 360 | case CircularRRectEffect::kBottom_CornerFlags: |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 361 | radius = rrect.radii(SkRRect::kLowerLeft_Corner).fX; |
| 362 | rect.fLeft += radius; |
| 363 | rect.fTop -= 0.5f; |
| 364 | rect.fRight -= radius; |
| 365 | rect.fBottom -= radius; |
| 366 | break; |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 367 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 368 | SkFAIL("Should have been one of the above cases."); |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 369 | } |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 370 | pdman.set4f(fInnerRectUniform, rect.fLeft, rect.fTop, rect.fRight, rect.fBottom); |
| 371 | pdman.set1f(fRadiusPlusHalfUniform, radius + 0.5f); |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 372 | fPrevRRect = rrect; |
| 373 | } |
| 374 | } |
| 375 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 376 | //////////////////////////////////////////////////////////////////////////////////////////////////// |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 377 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 378 | void CircularRRectEffect::getGLProcessorKey(const GrGLCaps& caps, |
| 379 | GrProcessorKeyBuilder* b) const { |
| 380 | GLCircularRRectEffect::GenKey(*this, caps, b); |
| 381 | } |
| 382 | |
| 383 | GrGLFragmentProcessor* CircularRRectEffect::createGLInstance() const { |
| 384 | return SkNEW_ARGS(GLCircularRRectEffect, (*this)); |
| 385 | } |
| 386 | |
| 387 | ////////////////////////////////////////////////////////////////////////////// |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 388 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 389 | class EllipticalRRectEffect : public GrFragmentProcessor { |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 390 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 391 | static GrFragmentProcessor* Create(GrPrimitiveEdgeType, const SkRRect&); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 392 | |
| 393 | virtual ~EllipticalRRectEffect() {}; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 394 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 395 | const char* name() const override { return "EllipticalRRect"; } |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 396 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 397 | void getGLProcessorKey(const GrGLCaps&, GrProcessorKeyBuilder*) const override; |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 398 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 399 | GrGLFragmentProcessor* createGLInstance() const override; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 400 | |
| 401 | const SkRRect& getRRect() const { return fRRect; } |
| 402 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 403 | GrPrimitiveEdgeType getEdgeType() const { return fEdgeType; } |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 404 | |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 405 | private: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 406 | EllipticalRRectEffect(GrPrimitiveEdgeType, const SkRRect&); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 407 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 408 | bool onIsEqual(const GrFragmentProcessor& other) const override; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 409 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 410 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override; |
egdaniel | 1a8ecdf | 2014-10-03 06:24:12 -0700 | [diff] [blame] | 411 | |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 412 | SkRRect fRRect; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 413 | GrPrimitiveEdgeType fEdgeType; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 414 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 415 | GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 416 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 417 | typedef GrFragmentProcessor INHERITED; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 418 | }; |
| 419 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 420 | GrFragmentProcessor* |
| 421 | EllipticalRRectEffect::Create(GrPrimitiveEdgeType edgeType, const SkRRect& rrect) { |
| 422 | if (kFillAA_GrProcessorEdgeType != edgeType && kInverseFillAA_GrProcessorEdgeType != edgeType) { |
commit-bot@chromium.org | 3eedb80 | 2014-03-28 15:58:31 +0000 | [diff] [blame] | 423 | return NULL; |
| 424 | } |
bsalomon | 55fad7a | 2014-07-08 07:34:20 -0700 | [diff] [blame] | 425 | return SkNEW_ARGS(EllipticalRRectEffect, (edgeType, rrect)); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 426 | } |
| 427 | |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame] | 428 | void EllipticalRRectEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const { |
joshualitt | 56995b5 | 2014-12-11 15:44:02 -0800 | [diff] [blame] | 429 | inout->mulByUnknownSingleComponent(); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 430 | } |
| 431 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 432 | EllipticalRRectEffect::EllipticalRRectEffect(GrPrimitiveEdgeType edgeType, const SkRRect& rrect) |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 433 | : fRRect(rrect) |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 434 | , fEdgeType(edgeType) { |
| 435 | this->initClassID<EllipticalRRectEffect>(); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 436 | this->setWillReadFragmentPosition(); |
| 437 | } |
| 438 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 439 | bool EllipticalRRectEffect::onIsEqual(const GrFragmentProcessor& other) const { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 440 | const EllipticalRRectEffect& erre = other.cast<EllipticalRRectEffect>(); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 441 | return fEdgeType == erre.fEdgeType && fRRect == erre.fRRect; |
| 442 | } |
| 443 | |
| 444 | ////////////////////////////////////////////////////////////////////////////// |
| 445 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 446 | GR_DEFINE_FRAGMENT_PROCESSOR_TEST(EllipticalRRectEffect); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 447 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 448 | GrFragmentProcessor* EllipticalRRectEffect::TestCreate(SkRandom* random, |
| 449 | GrContext*, |
| 450 | const GrDrawTargetCaps& caps, |
| 451 | GrTexture*[]) { |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 452 | SkScalar w = random->nextRangeScalar(20.f, 1000.f); |
| 453 | SkScalar h = random->nextRangeScalar(20.f, 1000.f); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 454 | SkVector r[4]; |
| 455 | r[SkRRect::kUpperLeft_Corner].fX = random->nextRangeF(kRadiusMin, 9.f); |
| 456 | // ensure at least one corner really is elliptical |
| 457 | do { |
| 458 | r[SkRRect::kUpperLeft_Corner].fY = random->nextRangeF(kRadiusMin, 9.f); |
| 459 | } while (r[SkRRect::kUpperLeft_Corner].fY == r[SkRRect::kUpperLeft_Corner].fX); |
| 460 | |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 461 | SkRRect rrect; |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 462 | if (random->nextBool()) { |
| 463 | // half the time create a four-radii rrect. |
| 464 | r[SkRRect::kLowerRight_Corner].fX = random->nextRangeF(kRadiusMin, 9.f); |
| 465 | r[SkRRect::kLowerRight_Corner].fY = random->nextRangeF(kRadiusMin, 9.f); |
| 466 | |
| 467 | r[SkRRect::kUpperRight_Corner].fX = r[SkRRect::kLowerRight_Corner].fX; |
| 468 | r[SkRRect::kUpperRight_Corner].fY = r[SkRRect::kUpperLeft_Corner].fY; |
| 469 | |
| 470 | r[SkRRect::kLowerLeft_Corner].fX = r[SkRRect::kUpperLeft_Corner].fX; |
| 471 | r[SkRRect::kLowerLeft_Corner].fY = r[SkRRect::kLowerRight_Corner].fY; |
| 472 | |
| 473 | rrect.setRectRadii(SkRect::MakeWH(w, h), r); |
| 474 | } else { |
| 475 | rrect.setRectXY(SkRect::MakeWH(w, h), r[SkRRect::kUpperLeft_Corner].fX, |
| 476 | r[SkRRect::kUpperLeft_Corner].fY); |
| 477 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 478 | GrFragmentProcessor* fp; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 479 | do { |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 480 | GrPrimitiveEdgeType et = (GrPrimitiveEdgeType)random->nextULessThan(kGrProcessorEdgeTypeCnt); |
| 481 | fp = GrRRectEffect::Create(et, rrect); |
| 482 | } while (NULL == fp); |
| 483 | return fp; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | ////////////////////////////////////////////////////////////////////////////// |
| 487 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 488 | class GLEllipticalRRectEffect : public GrGLFragmentProcessor { |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 489 | public: |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 490 | GLEllipticalRRectEffect(const GrProcessor&); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 491 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 492 | virtual void emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 493 | const GrFragmentProcessor& effect, |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 494 | const char* outputColor, |
| 495 | const char* inputColor, |
| 496 | const TransformedCoordsArray&, |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 497 | const TextureSamplerArray&) override; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 498 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 499 | static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilder*); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 500 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame^] | 501 | void setData(const GrGLProgramDataManager&, const GrProcessor&) override; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 502 | |
| 503 | private: |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 504 | GrGLProgramDataManager::UniformHandle fInnerRectUniform; |
| 505 | GrGLProgramDataManager::UniformHandle fInvRadiiSqdUniform; |
| 506 | SkRRect fPrevRRect; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 507 | typedef GrGLFragmentProcessor INHERITED; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 508 | }; |
| 509 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 510 | GLEllipticalRRectEffect::GLEllipticalRRectEffect(const GrProcessor& effect) { |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 511 | fPrevRRect.setEmpty(); |
| 512 | } |
| 513 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 514 | void GLEllipticalRRectEffect::emitCode(GrGLFPBuilder* builder, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 515 | const GrFragmentProcessor& effect, |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 516 | const char* outputColor, |
| 517 | const char* inputColor, |
| 518 | const TransformedCoordsArray&, |
| 519 | const TextureSamplerArray& samplers) { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 520 | const EllipticalRRectEffect& erre = effect.cast<EllipticalRRectEffect>(); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 521 | const char *rectName; |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 522 | // The inner rect is the rrect bounds inset by the x/y radii |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 523 | fInnerRectUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 524 | kVec4f_GrSLType, kDefault_GrSLPrecision, |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 525 | "innerRect", |
| 526 | &rectName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 527 | |
joshualitt | 1598899 | 2014-10-09 15:04:05 -0700 | [diff] [blame] | 528 | GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 529 | const char* fragmentPos = fsBuilder->fragmentPosition(); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 530 | // At each quarter-ellipse corner we compute a vector that is the offset of the fragment pos |
| 531 | // to the ellipse center. The vector is pinned in x and y to be in the quarter-plane relevant |
| 532 | // to that corner. This means that points near the interior near the rrect top edge will have |
| 533 | // a vector that points straight up for both the TL left and TR corners. Computing an |
| 534 | // alpha from this vector at either the TR or TL corner will give the correct result. Similarly, |
| 535 | // fragments near the other three edges will get the correct AA. Fragments in the interior of |
| 536 | // the rrect will have a (0,0) vector at all four corners. So long as the radii > 0.5 they will |
| 537 | // correctly produce an alpha value of 1 at all four corners. We take the min of all the alphas. |
| 538 | // The code below is a simplified version of the above that performs maxs on the vector |
| 539 | // components before computing distances and alpha values so that only one distance computation |
| 540 | // need be computed to determine the min alpha. |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 541 | fsBuilder->codeAppendf("\t\tvec2 dxy0 = %s.xy - %s.xy;\n", rectName, fragmentPos); |
| 542 | fsBuilder->codeAppendf("\t\tvec2 dxy1 = %s.xy - %s.zw;\n", fragmentPos, rectName); |
commit-bot@chromium.org | 9615d5f | 2014-03-20 21:39:03 +0000 | [diff] [blame] | 543 | switch (erre.getRRect().getType()) { |
| 544 | case SkRRect::kSimple_Type: { |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 545 | const char *invRadiiXYSqdName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 546 | fInvRadiiSqdUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 547 | kVec2f_GrSLType, kDefault_GrSLPrecision, |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 548 | "invRadiiXY", |
| 549 | &invRadiiXYSqdName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 550 | fsBuilder->codeAppend("\t\tvec2 dxy = max(max(dxy0, dxy1), 0.0);\n"); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 551 | // Z is the x/y offsets divided by squared radii. |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 552 | fsBuilder->codeAppendf("\t\tvec2 Z = dxy * %s;\n", invRadiiXYSqdName); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 553 | break; |
| 554 | } |
commit-bot@chromium.org | 9615d5f | 2014-03-20 21:39:03 +0000 | [diff] [blame] | 555 | case SkRRect::kNinePatch_Type: { |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 556 | const char *invRadiiLTRBSqdName; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 557 | fInvRadiiSqdUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 558 | kVec4f_GrSLType, kDefault_GrSLPrecision, |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 559 | "invRadiiLTRB", |
| 560 | &invRadiiLTRBSqdName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 561 | fsBuilder->codeAppend("\t\tvec2 dxy = max(max(dxy0, dxy1), 0.0);\n"); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 562 | // Z is the x/y offsets divided by squared radii. We only care about the (at most) one |
| 563 | // corner where both the x and y offsets are positive, hence the maxes. (The inverse |
| 564 | // squared radii will always be positive.) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 565 | fsBuilder->codeAppendf("\t\tvec2 Z = max(max(dxy0 * %s.xy, dxy1 * %s.zw), 0.0);\n", |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 566 | invRadiiLTRBSqdName, invRadiiLTRBSqdName); |
| 567 | break; |
commit-bot@chromium.org | 9615d5f | 2014-03-20 21:39:03 +0000 | [diff] [blame] | 568 | } |
| 569 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 570 | SkFAIL("RRect should always be simple or nine-patch."); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 571 | } |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 572 | // implicit is the evaluation of (x/a)^2 + (y/b)^2 - 1. |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 573 | fsBuilder->codeAppend("\t\tfloat implicit = dot(Z, dxy) - 1.0;\n"); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 574 | // grad_dot is the squared length of the gradient of the implicit. |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 575 | fsBuilder->codeAppendf("\t\tfloat grad_dot = 4.0 * dot(Z, Z);\n"); |
commit-bot@chromium.org | 1b035d8 | 2014-04-09 17:11:09 +0000 | [diff] [blame] | 576 | // avoid calling inversesqrt on zero. |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 577 | fsBuilder->codeAppend("\t\tgrad_dot = max(grad_dot, 1.0e-4);\n"); |
| 578 | fsBuilder->codeAppendf("\t\tfloat approx_dist = implicit * inversesqrt(grad_dot);\n"); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 579 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 580 | if (kFillAA_GrProcessorEdgeType == erre.getEdgeType()) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 581 | fsBuilder->codeAppend("\t\tfloat alpha = clamp(0.5 - approx_dist, 0.0, 1.0);\n"); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 582 | } else { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 583 | fsBuilder->codeAppend("\t\tfloat alpha = clamp(0.5 + approx_dist, 0.0, 1.0);\n"); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 584 | } |
| 585 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 586 | fsBuilder->codeAppendf("\t\t%s = %s;\n", outputColor, |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 587 | (GrGLSLExpr4(inputColor) * GrGLSLExpr1("alpha")).c_str()); |
| 588 | } |
| 589 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 590 | void GLEllipticalRRectEffect::GenKey(const GrProcessor& effect, const GrGLCaps&, |
| 591 | GrProcessorKeyBuilder* b) { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 592 | const EllipticalRRectEffect& erre = effect.cast<EllipticalRRectEffect>(); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 593 | GR_STATIC_ASSERT(kLast_GrProcessorEdgeType < (1 << 3)); |
bsalomon | 63e99f7 | 2014-07-21 08:03:14 -0700 | [diff] [blame] | 594 | b->add32(erre.getRRect().getType() | erre.getEdgeType() << 3); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 595 | } |
| 596 | |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 597 | void GLEllipticalRRectEffect::setData(const GrGLProgramDataManager& pdman, |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 598 | const GrProcessor& effect) { |
joshualitt | 49586be | 2014-09-16 08:21:41 -0700 | [diff] [blame] | 599 | const EllipticalRRectEffect& erre = effect.cast<EllipticalRRectEffect>(); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 600 | const SkRRect& rrect = erre.getRRect(); |
| 601 | if (rrect != fPrevRRect) { |
| 602 | SkRect rect = rrect.getBounds(); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 603 | const SkVector& r0 = rrect.radii(SkRRect::kUpperLeft_Corner); |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 604 | SkASSERT(r0.fX >= kRadiusMin); |
| 605 | SkASSERT(r0.fY >= kRadiusMin); |
commit-bot@chromium.org | 9615d5f | 2014-03-20 21:39:03 +0000 | [diff] [blame] | 606 | switch (erre.getRRect().getType()) { |
| 607 | case SkRRect::kSimple_Type: |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 608 | rect.inset(r0.fX, r0.fY); |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 609 | pdman.set2f(fInvRadiiSqdUniform, 1.f / (r0.fX * r0.fX), |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 610 | 1.f / (r0.fY * r0.fY)); |
| 611 | break; |
commit-bot@chromium.org | 9615d5f | 2014-03-20 21:39:03 +0000 | [diff] [blame] | 612 | case SkRRect::kNinePatch_Type: { |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 613 | const SkVector& r1 = rrect.radii(SkRRect::kLowerRight_Corner); |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 614 | SkASSERT(r1.fX >= kRadiusMin); |
| 615 | SkASSERT(r1.fY >= kRadiusMin); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 616 | rect.fLeft += r0.fX; |
| 617 | rect.fTop += r0.fY; |
| 618 | rect.fRight -= r1.fX; |
| 619 | rect.fBottom -= r1.fY; |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 620 | pdman.set4f(fInvRadiiSqdUniform, 1.f / (r0.fX * r0.fX), |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 621 | 1.f / (r0.fY * r0.fY), |
| 622 | 1.f / (r1.fX * r1.fX), |
| 623 | 1.f / (r1.fY * r1.fY)); |
| 624 | break; |
| 625 | } |
commit-bot@chromium.org | 9615d5f | 2014-03-20 21:39:03 +0000 | [diff] [blame] | 626 | default: |
commit-bot@chromium.org | 88cb22b | 2014-04-30 14:17:00 +0000 | [diff] [blame] | 627 | SkFAIL("RRect should always be simple or nine-patch."); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 628 | } |
kkinnunen | 7510b22 | 2014-07-30 00:04:16 -0700 | [diff] [blame] | 629 | pdman.set4f(fInnerRectUniform, rect.fLeft, rect.fTop, rect.fRight, rect.fBottom); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 630 | fPrevRRect = rrect; |
| 631 | } |
| 632 | } |
| 633 | |
joshualitt | eb2a676 | 2014-12-04 11:35:33 -0800 | [diff] [blame] | 634 | //////////////////////////////////////////////////////////////////////////////////////////////////// |
| 635 | |
| 636 | void EllipticalRRectEffect::getGLProcessorKey(const GrGLCaps& caps, |
| 637 | GrProcessorKeyBuilder* b) const { |
| 638 | GLEllipticalRRectEffect::GenKey(*this, caps, b); |
| 639 | } |
| 640 | |
| 641 | GrGLFragmentProcessor* EllipticalRRectEffect::createGLInstance() const { |
| 642 | return SkNEW_ARGS(GLEllipticalRRectEffect, (*this)); |
| 643 | } |
| 644 | |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 645 | ////////////////////////////////////////////////////////////////////////////// |
| 646 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 647 | GrFragmentProcessor* GrRRectEffect::Create(GrPrimitiveEdgeType edgeType, const SkRRect& rrect) { |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 648 | if (rrect.isRect()) { |
| 649 | return GrConvexPolyEffect::Create(edgeType, rrect.getBounds()); |
| 650 | } |
| 651 | |
commit-bot@chromium.org | 3eedb80 | 2014-03-28 15:58:31 +0000 | [diff] [blame] | 652 | if (rrect.isOval()) { |
| 653 | return GrOvalEffect::Create(edgeType, rrect.getBounds()); |
| 654 | } |
| 655 | |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 656 | if (rrect.isSimple()) { |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 657 | if (rrect.getSimpleRadii().fX < kRadiusMin || rrect.getSimpleRadii().fY < kRadiusMin) { |
| 658 | // In this case the corners are extremely close to rectangular and we collapse the |
| 659 | // clip to a rectangular clip. |
| 660 | return GrConvexPolyEffect::Create(edgeType, rrect.getBounds()); |
| 661 | } |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 662 | if (rrect.getSimpleRadii().fX == rrect.getSimpleRadii().fY) { |
skia.committer@gmail.com | 6e4eb21 | 2014-03-25 03:02:32 +0000 | [diff] [blame] | 663 | return CircularRRectEffect::Create(edgeType, CircularRRectEffect::kAll_CornerFlags, |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 664 | rrect); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 665 | } else { |
commit-bot@chromium.org | 9615d5f | 2014-03-20 21:39:03 +0000 | [diff] [blame] | 666 | return EllipticalRRectEffect::Create(edgeType, rrect); |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 667 | } |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 668 | } |
| 669 | |
| 670 | if (rrect.isComplex() || rrect.isNinePatch()) { |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 671 | // Check for the "tab" cases - two adjacent circular corners and two square corners. |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 672 | SkScalar circularRadius = 0; |
| 673 | uint32_t cornerFlags = 0; |
| 674 | |
| 675 | SkVector radii[4]; |
| 676 | bool squashedRadii = false; |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 677 | for (int c = 0; c < 4; ++c) { |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 678 | radii[c] = rrect.radii((SkRRect::Corner)c); |
| 679 | SkASSERT((0 == radii[c].fX) == (0 == radii[c].fY)); |
| 680 | if (0 == radii[c].fX) { |
| 681 | // The corner is square, so no need to squash or flag as circular. |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 682 | continue; |
| 683 | } |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 684 | if (radii[c].fX < kRadiusMin || radii[c].fY < kRadiusMin) { |
| 685 | radii[c].set(0, 0); |
| 686 | squashedRadii = true; |
| 687 | continue; |
| 688 | } |
| 689 | if (radii[c].fX != radii[c].fY) { |
bsalomon@google.com | 44a435b | 2014-03-13 19:20:32 +0000 | [diff] [blame] | 690 | cornerFlags = ~0U; |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 691 | break; |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 692 | } |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 693 | if (!cornerFlags) { |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 694 | circularRadius = radii[c].fX; |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 695 | cornerFlags = 1 << c; |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 696 | } else { |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 697 | if (radii[c].fX != circularRadius) { |
bsalomon@google.com | 44a435b | 2014-03-13 19:20:32 +0000 | [diff] [blame] | 698 | cornerFlags = ~0U; |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 699 | break; |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 700 | } |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 701 | cornerFlags |= 1 << c; |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 702 | } |
| 703 | } |
| 704 | |
commit-bot@chromium.org | dd58422 | 2014-03-10 16:08:22 +0000 | [diff] [blame] | 705 | switch (cornerFlags) { |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 706 | case CircularRRectEffect::kAll_CornerFlags: |
| 707 | // This rrect should have been caught in the simple case above. Though, it would |
| 708 | // be correctly handled in the fallthrough code. |
| 709 | SkASSERT(false); |
commit-bot@chromium.org | 4355f21 | 2014-03-12 15:32:50 +0000 | [diff] [blame] | 710 | case CircularRRectEffect::kTopLeft_CornerFlag: |
| 711 | case CircularRRectEffect::kTopRight_CornerFlag: |
| 712 | case CircularRRectEffect::kBottomRight_CornerFlag: |
| 713 | case CircularRRectEffect::kBottomLeft_CornerFlag: |
| 714 | case CircularRRectEffect::kLeft_CornerFlags: |
| 715 | case CircularRRectEffect::kTop_CornerFlags: |
| 716 | case CircularRRectEffect::kRight_CornerFlags: |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 717 | case CircularRRectEffect::kBottom_CornerFlags: { |
| 718 | SkTCopyOnFirstWrite<SkRRect> rr(rrect); |
| 719 | if (squashedRadii) { |
| 720 | rr.writable()->setRectRadii(rrect.getBounds(), radii); |
| 721 | } |
| 722 | return CircularRRectEffect::Create(edgeType, cornerFlags, *rr); |
| 723 | } |
| 724 | case CircularRRectEffect::kNone_CornerFlags: |
| 725 | return GrConvexPolyEffect::Create(edgeType, rrect.getBounds()); |
| 726 | default: { |
| 727 | if (squashedRadii) { |
| 728 | // If we got here then we squashed some but not all the radii to zero. (If all |
| 729 | // had been squashed cornerFlags would be 0.) The elliptical effect doesn't |
| 730 | // support some rounded and some square corners. |
| 731 | return NULL; |
| 732 | } |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 733 | if (rrect.isNinePatch()) { |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 734 | return EllipticalRRectEffect::Create(edgeType, rrect); |
commit-bot@chromium.org | fa5edbe | 2014-03-13 18:01:05 +0000 | [diff] [blame] | 735 | } |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 736 | return NULL; |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 737 | } |
commit-bot@chromium.org | cb3672e | 2014-02-21 22:41:56 +0000 | [diff] [blame] | 738 | } |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 739 | } |
commit-bot@chromium.org | 2a8be90 | 2014-03-24 19:24:59 +0000 | [diff] [blame] | 740 | |
| 741 | return NULL; |
commit-bot@chromium.org | c2f7824 | 2014-02-19 15:18:05 +0000 | [diff] [blame] | 742 | } |