bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | |
Brian Osman | d1b530a | 2021-05-25 16:09:16 -0400 | [diff] [blame] | 8 | #include "src/core/SkRuntimeEffectPriv.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 9 | #include "src/gpu/GrFragmentProcessor.h" |
| 10 | #include "src/gpu/GrPipeline.h" |
| 11 | #include "src/gpu/GrProcessorAnalysis.h" |
John Stiles | f743d4e | 2020-07-23 11:35:08 -0400 | [diff] [blame] | 12 | #include "src/gpu/effects/GrBlendFragmentProcessor.h" |
Brian Salomon | 354147a | 2021-04-14 11:15:05 -0400 | [diff] [blame] | 13 | #include "src/gpu/effects/GrSkSLFP.h" |
Robert Phillips | 550de7f | 2021-07-06 16:28:52 -0400 | [diff] [blame] | 14 | #include "src/gpu/effects/GrTextureEffect.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 15 | #include "src/gpu/glsl/GrGLSLFragmentProcessor.h" |
| 16 | #include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h" |
| 17 | #include "src/gpu/glsl/GrGLSLProgramDataManager.h" |
| 18 | #include "src/gpu/glsl/GrGLSLUniformHandler.h" |
bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 19 | |
bsalomon | 7312ff8 | 2016-09-12 08:55:38 -0700 | [diff] [blame] | 20 | bool GrFragmentProcessor::isEqual(const GrFragmentProcessor& that) const { |
Brian Salomon | e782f84 | 2018-07-31 13:53:11 -0400 | [diff] [blame] | 21 | if (this->classID() != that.classID()) { |
bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 22 | return false; |
| 23 | } |
Brian Salomon | 66b500a | 2021-08-02 12:37:14 -0400 | [diff] [blame] | 24 | if (this->sampleUsage() != that.sampleUsage()) { |
bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 25 | return false; |
| 26 | } |
| 27 | if (!this->onIsEqual(that)) { |
| 28 | return false; |
| 29 | } |
| 30 | if (this->numChildProcessors() != that.numChildProcessors()) { |
| 31 | return false; |
| 32 | } |
| 33 | for (int i = 0; i < this->numChildProcessors(); ++i) { |
Brian Osman | 12c5d29 | 2020-07-13 16:11:35 -0400 | [diff] [blame] | 34 | auto thisChild = this->childProcessor(i), |
| 35 | thatChild = that .childProcessor(i); |
| 36 | if (SkToBool(thisChild) != SkToBool(thatChild)) { |
| 37 | return false; |
| 38 | } |
| 39 | if (thisChild && !thisChild->isEqual(*thatChild)) { |
bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 40 | return false; |
| 41 | } |
| 42 | } |
| 43 | return true; |
| 44 | } |
| 45 | |
Robert Phillips | 294723d | 2021-06-17 09:23:58 -0400 | [diff] [blame] | 46 | void GrFragmentProcessor::visitProxies(const GrVisitProxyFunc& func) const { |
Brian Salomon | d90b3d3 | 2020-07-09 12:04:31 -0400 | [diff] [blame] | 47 | this->visitTextureEffects([&func](const GrTextureEffect& te) { |
Brian Salomon | e69b9ef | 2020-07-22 11:18:06 -0400 | [diff] [blame] | 48 | func(te.view().proxy(), te.samplerState().mipmapped()); |
Brian Salomon | d90b3d3 | 2020-07-09 12:04:31 -0400 | [diff] [blame] | 49 | }); |
| 50 | } |
| 51 | |
| 52 | void GrFragmentProcessor::visitTextureEffects( |
| 53 | const std::function<void(const GrTextureEffect&)>& func) const { |
| 54 | if (auto* te = this->asTextureEffect()) { |
| 55 | func(*te); |
Brian Salomon | e782f84 | 2018-07-31 13:53:11 -0400 | [diff] [blame] | 56 | } |
Brian Salomon | d90b3d3 | 2020-07-09 12:04:31 -0400 | [diff] [blame] | 57 | for (auto& child : fChildProcessors) { |
Brian Osman | 12c5d29 | 2020-07-13 16:11:35 -0400 | [diff] [blame] | 58 | if (child) { |
| 59 | child->visitTextureEffects(func); |
| 60 | } |
Brian Salomon | d90b3d3 | 2020-07-09 12:04:31 -0400 | [diff] [blame] | 61 | } |
| 62 | } |
| 63 | |
Brian Salomon | 9139803 | 2021-08-05 10:02:08 -0400 | [diff] [blame] | 64 | void GrFragmentProcessor::visitWithImpls( |
| 65 | const std::function<void(const GrFragmentProcessor&, GrGLSLFragmentProcessor&)>& f, |
| 66 | GrGLSLFragmentProcessor& impl) const { |
| 67 | f(*this, impl); |
| 68 | SkASSERT(impl.numChildProcessors() == this->numChildProcessors()); |
| 69 | for (int i = 0; i < this->numChildProcessors(); ++i) { |
| 70 | if (const auto* child = this->childProcessor(i)) { |
| 71 | child->visitWithImpls(f, *impl.childProcessor(i)); |
| 72 | } |
| 73 | } |
| 74 | } |
| 75 | |
Brian Salomon | d90b3d3 | 2020-07-09 12:04:31 -0400 | [diff] [blame] | 76 | GrTextureEffect* GrFragmentProcessor::asTextureEffect() { |
| 77 | if (this->classID() == kGrTextureEffect_ClassID) { |
| 78 | return static_cast<GrTextureEffect*>(this); |
| 79 | } |
| 80 | return nullptr; |
| 81 | } |
| 82 | |
| 83 | const GrTextureEffect* GrFragmentProcessor::asTextureEffect() const { |
| 84 | if (this->classID() == kGrTextureEffect_ClassID) { |
| 85 | return static_cast<const GrTextureEffect*>(this); |
| 86 | } |
| 87 | return nullptr; |
Brian Salomon | e782f84 | 2018-07-31 13:53:11 -0400 | [diff] [blame] | 88 | } |
| 89 | |
John Stiles | 8d9bf64 | 2020-08-12 15:07:45 -0400 | [diff] [blame] | 90 | #if GR_TEST_UTILS |
John Stiles | ba1879d | 2020-08-11 13:58:32 -0400 | [diff] [blame] | 91 | static void recursive_dump_tree_info(const GrFragmentProcessor& fp, |
| 92 | SkString indent, |
| 93 | SkString* text) { |
| 94 | for (int index = 0; index < fp.numChildProcessors(); ++index) { |
| 95 | text->appendf("\n%s(#%d) -> ", indent.c_str(), index); |
| 96 | if (const GrFragmentProcessor* childFP = fp.childProcessor(index)) { |
| 97 | text->append(childFP->dumpInfo()); |
| 98 | indent.append("\t"); |
| 99 | recursive_dump_tree_info(*childFP, indent, text); |
| 100 | } else { |
| 101 | text->append("null"); |
| 102 | } |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | SkString GrFragmentProcessor::dumpTreeInfo() const { |
| 107 | SkString text = this->dumpInfo(); |
| 108 | recursive_dump_tree_info(*this, SkString("\t"), &text); |
| 109 | text.append("\n"); |
| 110 | return text; |
| 111 | } |
| 112 | #endif |
| 113 | |
Brian Salomon | 18ab203 | 2021-02-23 10:07:05 -0500 | [diff] [blame] | 114 | std::unique_ptr<GrGLSLFragmentProcessor> GrFragmentProcessor::makeProgramImpl() const { |
| 115 | std::unique_ptr<GrGLSLFragmentProcessor> glFragProc = this->onMakeProgramImpl(); |
bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 116 | glFragProc->fChildProcessors.push_back_n(fChildProcessors.count()); |
| 117 | for (int i = 0; i < fChildProcessors.count(); ++i) { |
Brian Salomon | 18ab203 | 2021-02-23 10:07:05 -0500 | [diff] [blame] | 118 | glFragProc->fChildProcessors[i] = fChildProcessors[i] |
| 119 | ? fChildProcessors[i]->makeProgramImpl() |
| 120 | : nullptr; |
bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 121 | } |
| 122 | return glFragProc; |
| 123 | } |
| 124 | |
Brian Osman | 12c5d29 | 2020-07-13 16:11:35 -0400 | [diff] [blame] | 125 | int GrFragmentProcessor::numNonNullChildProcessors() const { |
| 126 | return std::count_if(fChildProcessors.begin(), fChildProcessors.end(), |
| 127 | [](const auto& c) { return c != nullptr; }); |
| 128 | } |
| 129 | |
Robert Phillips | 82774f8 | 2019-06-20 14:38:27 -0400 | [diff] [blame] | 130 | #ifdef SK_DEBUG |
| 131 | bool GrFragmentProcessor::isInstantiated() const { |
Brian Salomon | d90b3d3 | 2020-07-09 12:04:31 -0400 | [diff] [blame] | 132 | bool result = true; |
| 133 | this->visitTextureEffects([&result](const GrTextureEffect& te) { |
| 134 | if (!te.texture()) { |
| 135 | result = false; |
Brian Salomon | e782f84 | 2018-07-31 13:53:11 -0400 | [diff] [blame] | 136 | } |
Brian Salomon | d90b3d3 | 2020-07-09 12:04:31 -0400 | [diff] [blame] | 137 | }); |
| 138 | return result; |
Robert Phillips | 9bee2e5 | 2017-05-29 12:37:20 -0400 | [diff] [blame] | 139 | } |
Robert Phillips | 82774f8 | 2019-06-20 14:38:27 -0400 | [diff] [blame] | 140 | #endif |
Robert Phillips | 9bee2e5 | 2017-05-29 12:37:20 -0400 | [diff] [blame] | 141 | |
Brian Osman | 12c5d29 | 2020-07-13 16:11:35 -0400 | [diff] [blame] | 142 | void GrFragmentProcessor::registerChild(std::unique_ptr<GrFragmentProcessor> child, |
| 143 | SkSL::SampleUsage sampleUsage) { |
Brian Osman | 54867de | 2020-07-10 14:22:57 -0400 | [diff] [blame] | 144 | if (!child) { |
Brian Osman | 12c5d29 | 2020-07-13 16:11:35 -0400 | [diff] [blame] | 145 | fChildProcessors.push_back(nullptr); |
| 146 | return; |
Brian Osman | 54867de | 2020-07-10 14:22:57 -0400 | [diff] [blame] | 147 | } |
| 148 | |
Michael Ludwig | e88320b | 2020-06-24 09:04:56 -0400 | [diff] [blame] | 149 | // The child should not have been attached to another FP already and not had any sampling |
| 150 | // strategy set on it. |
Brian Salomon | 66b500a | 2021-08-02 12:37:14 -0400 | [diff] [blame] | 151 | SkASSERT(!child->fParent && !child->sampleUsage().isSampled()); |
Michael Ludwig | e88320b | 2020-06-24 09:04:56 -0400 | [diff] [blame] | 152 | |
Michael Ludwig | 9aba625 | 2020-06-22 14:46:36 -0400 | [diff] [blame] | 153 | // Configure child's sampling state first |
Brian Osman | 1298bc4 | 2020-06-30 13:39:35 -0400 | [diff] [blame] | 154 | child->fUsage = sampleUsage; |
| 155 | |
John Stiles | e69f25f | 2021-06-03 12:23:33 -0400 | [diff] [blame] | 156 | // Propagate the "will read dest-color" flag up to parent FPs. |
John Stiles | bc4bc5f | 2021-06-11 16:43:15 -0400 | [diff] [blame] | 157 | if (child->willReadDstColor()) { |
| 158 | this->setWillReadDstColor(); |
John Stiles | e69f25f | 2021-06-03 12:23:33 -0400 | [diff] [blame] | 159 | } |
| 160 | |
Brian Salomon | 66b500a | 2021-08-02 12:37:14 -0400 | [diff] [blame] | 161 | // If this child receives passthrough or matrix transformed coords from its parent then note |
| 162 | // that the parent's coords are used indirectly to ensure that they aren't omitted. |
| 163 | if ((sampleUsage.isPassThrough() || sampleUsage.isUniformMatrix()) && |
| 164 | child->usesSampleCoords()) { |
| 165 | fFlags |= kUsesSampleCoordsIndirectly_Flag; |
Michael Ludwig | e88320b | 2020-06-24 09:04:56 -0400 | [diff] [blame] | 166 | } |
| 167 | |
Chris Dalton | d7291ba | 2019-03-07 14:17:03 -0700 | [diff] [blame] | 168 | fRequestedFeatures |= child->fRequestedFeatures; |
bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 169 | |
Michael Ludwig | e88320b | 2020-06-24 09:04:56 -0400 | [diff] [blame] | 170 | // Record that the child is attached to us; this FP is the source of any uniform data needed |
| 171 | // to evaluate the child sample matrix. |
| 172 | child->fParent = this; |
Brian Salomon | aff329b | 2017-08-11 09:40:37 -0400 | [diff] [blame] | 173 | fChildProcessors.push_back(std::move(child)); |
Michael Ludwig | e88320b | 2020-06-24 09:04:56 -0400 | [diff] [blame] | 174 | |
Leon Scroggins III | 982fff2 | 2020-07-31 14:09:06 -0400 | [diff] [blame] | 175 | // Validate: our sample strategy comes from a parent we shouldn't have yet. |
Brian Salomon | 66b500a | 2021-08-02 12:37:14 -0400 | [diff] [blame] | 176 | SkASSERT(!fUsage.isSampled() && !fParent); |
John Stiles | 3779f44 | 2020-06-15 10:48:49 -0400 | [diff] [blame] | 177 | } |
| 178 | |
John Stiles | 9ec6b05 | 2020-06-15 12:06:10 -0400 | [diff] [blame] | 179 | void GrFragmentProcessor::cloneAndRegisterAllChildProcessors(const GrFragmentProcessor& src) { |
| 180 | for (int i = 0; i < src.numChildProcessors(); ++i) { |
Brian Osman | 12c5d29 | 2020-07-13 16:11:35 -0400 | [diff] [blame] | 181 | if (auto fp = src.childProcessor(i)) { |
| 182 | this->registerChild(fp->clone(), fp->sampleUsage()); |
| 183 | } else { |
| 184 | this->registerChild(nullptr); |
| 185 | } |
John Stiles | 9ec6b05 | 2020-06-15 12:06:10 -0400 | [diff] [blame] | 186 | } |
| 187 | } |
| 188 | |
Brian Salomon | 354147a | 2021-04-14 11:15:05 -0400 | [diff] [blame] | 189 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::MakeColor(SkPMColor4f color) { |
Brian Osman | 4cd134c | 2021-04-28 17:25:31 -0400 | [diff] [blame] | 190 | // Use ColorFilter signature/factory to get the constant output for constant input optimization |
Brian Osman | d1b530a | 2021-05-25 16:09:16 -0400 | [diff] [blame] | 191 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForColorFilter, R"( |
Brian Salomon | 354147a | 2021-04-14 11:15:05 -0400 | [diff] [blame] | 192 | uniform half4 color; |
Brian Osman | 4cd134c | 2021-04-28 17:25:31 -0400 | [diff] [blame] | 193 | half4 main(half4 inColor) { return color; } |
Brian Osman | d1b530a | 2021-05-25 16:09:16 -0400 | [diff] [blame] | 194 | )"); |
Brian Osman | be545c9 | 2021-06-18 09:41:15 -0400 | [diff] [blame] | 195 | SkASSERT(SkRuntimeEffectPriv::SupportsConstantOutputForConstantInput(effect)); |
Brian Osman | 171fba7 | 2021-06-16 17:10:21 -0400 | [diff] [blame] | 196 | return GrSkSLFP::Make(effect, "color_fp", /*inputFP=*/nullptr, |
| 197 | color.isOpaque() ? GrSkSLFP::OptFlags::kPreservesOpaqueInput |
| 198 | : GrSkSLFP::OptFlags::kNone, |
| 199 | "color", color); |
Brian Salomon | 354147a | 2021-04-14 11:15:05 -0400 | [diff] [blame] | 200 | } |
| 201 | |
Mike Reed | 28eaed2 | 2018-02-01 11:24:53 -0500 | [diff] [blame] | 202 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::MulChildByInputAlpha( |
Brian Salomon | aff329b | 2017-08-11 09:40:37 -0400 | [diff] [blame] | 203 | std::unique_ptr<GrFragmentProcessor> fp) { |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 204 | if (!fp) { |
| 205 | return nullptr; |
| 206 | } |
Brian Salomon | 4b6e2f0 | 2021-07-08 14:04:21 -0400 | [diff] [blame] | 207 | return GrBlendFragmentProcessor::Make(/*src=*/nullptr, |
| 208 | OverrideInput(std::move(fp), SK_PMColor4fWHITE), |
| 209 | SkBlendMode::kDstIn); |
bsalomon | bf87730 | 2015-09-22 09:06:13 -0700 | [diff] [blame] | 210 | } |
| 211 | |
Mike Reed | 28eaed2 | 2018-02-01 11:24:53 -0500 | [diff] [blame] | 212 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::MulInputByChildAlpha( |
| 213 | std::unique_ptr<GrFragmentProcessor> fp) { |
| 214 | if (!fp) { |
| 215 | return nullptr; |
| 216 | } |
Brian Salomon | 4b6e2f0 | 2021-07-08 14:04:21 -0400 | [diff] [blame] | 217 | return GrBlendFragmentProcessor::Make(/*src=*/nullptr, |
| 218 | OverrideInput(std::move(fp), SK_PMColor4fWHITE), |
| 219 | SkBlendMode::kSrcIn); |
Mike Reed | 28eaed2 | 2018-02-01 11:24:53 -0500 | [diff] [blame] | 220 | } |
| 221 | |
John Stiles | 7bf2600 | 2020-07-13 11:30:12 -0400 | [diff] [blame] | 222 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::ModulateAlpha( |
| 223 | std::unique_ptr<GrFragmentProcessor> inputFP, const SkPMColor4f& color) { |
Brian Salomon | 354147a | 2021-04-14 11:15:05 -0400 | [diff] [blame] | 224 | auto colorFP = MakeColor(color); |
Brian Salomon | 4b6e2f0 | 2021-07-08 14:04:21 -0400 | [diff] [blame] | 225 | return GrBlendFragmentProcessor::Make(std::move(colorFP), |
| 226 | std::move(inputFP), |
| 227 | SkBlendMode::kSrcIn); |
John Stiles | 7bf2600 | 2020-07-13 11:30:12 -0400 | [diff] [blame] | 228 | } |
| 229 | |
John Stiles | 8589430 | 2020-07-13 11:39:52 -0400 | [diff] [blame] | 230 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::ModulateRGBA( |
| 231 | std::unique_ptr<GrFragmentProcessor> inputFP, const SkPMColor4f& color) { |
Brian Salomon | 354147a | 2021-04-14 11:15:05 -0400 | [diff] [blame] | 232 | auto colorFP = MakeColor(color); |
Brian Salomon | 4b6e2f0 | 2021-07-08 14:04:21 -0400 | [diff] [blame] | 233 | return GrBlendFragmentProcessor::Make(std::move(colorFP), |
| 234 | std::move(inputFP), |
| 235 | SkBlendMode::kModulate); |
John Stiles | 8589430 | 2020-07-13 11:39:52 -0400 | [diff] [blame] | 236 | } |
| 237 | |
Brian Osman | 8e814b3 | 2021-06-17 14:14:26 -0400 | [diff] [blame] | 238 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::ClampOutput( |
| 239 | std::unique_ptr<GrFragmentProcessor> fp) { |
| 240 | SkASSERT(fp); |
| 241 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForColorFilter, R"( |
| 242 | half4 main(half4 inColor) { |
| 243 | return saturate(inColor); |
| 244 | } |
| 245 | )"); |
Brian Osman | be545c9 | 2021-06-18 09:41:15 -0400 | [diff] [blame] | 246 | SkASSERT(SkRuntimeEffectPriv::SupportsConstantOutputForConstantInput(effect)); |
Brian Osman | 8e814b3 | 2021-06-17 14:14:26 -0400 | [diff] [blame] | 247 | return GrSkSLFP::Make( |
| 248 | effect, "Clamp", std::move(fp), GrSkSLFP::OptFlags::kPreservesOpaqueInput); |
| 249 | } |
| 250 | |
Brian Osman | 6f5e940 | 2020-01-22 10:39:31 -0500 | [diff] [blame] | 251 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::ClampPremulOutput( |
| 252 | std::unique_ptr<GrFragmentProcessor> fp) { |
Brian Osman | 8e814b3 | 2021-06-17 14:14:26 -0400 | [diff] [blame] | 253 | SkASSERT(fp); |
| 254 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForColorFilter, R"( |
| 255 | half4 main(half4 inColor) { |
| 256 | half alpha = saturate(inColor.a); |
| 257 | return half4(clamp(inColor.rgb, 0, alpha), alpha); |
| 258 | } |
| 259 | )"); |
Brian Osman | be545c9 | 2021-06-18 09:41:15 -0400 | [diff] [blame] | 260 | SkASSERT(SkRuntimeEffectPriv::SupportsConstantOutputForConstantInput(effect)); |
Brian Osman | 8e814b3 | 2021-06-17 14:14:26 -0400 | [diff] [blame] | 261 | return GrSkSLFP::Make( |
| 262 | effect, "ClampPremul", std::move(fp), GrSkSLFP::OptFlags::kPreservesOpaqueInput); |
Brian Osman | 6f5e940 | 2020-01-22 10:39:31 -0500 | [diff] [blame] | 263 | } |
| 264 | |
Brian Salomon | aff329b | 2017-08-11 09:40:37 -0400 | [diff] [blame] | 265 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::SwizzleOutput( |
| 266 | std::unique_ptr<GrFragmentProcessor> fp, const GrSwizzle& swizzle) { |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 267 | class SwizzleFragmentProcessor : public GrFragmentProcessor { |
| 268 | public: |
John Stiles | eed56f0 | 2020-06-04 13:30:51 -0400 | [diff] [blame] | 269 | static std::unique_ptr<GrFragmentProcessor> Make(std::unique_ptr<GrFragmentProcessor> fp, |
| 270 | const GrSwizzle& swizzle) { |
| 271 | return std::unique_ptr<GrFragmentProcessor>( |
John Stiles | 4bdc121 | 2020-12-14 18:04:13 -0500 | [diff] [blame] | 272 | new SwizzleFragmentProcessor(std::move(fp), swizzle)); |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | const char* name() const override { return "Swizzle"; } |
| 276 | const GrSwizzle& swizzle() const { return fSwizzle; } |
| 277 | |
John Stiles | eed56f0 | 2020-06-04 13:30:51 -0400 | [diff] [blame] | 278 | std::unique_ptr<GrFragmentProcessor> clone() const override { |
Brian Osman | 12c5d29 | 2020-07-13 16:11:35 -0400 | [diff] [blame] | 279 | return Make(this->childProcessor(0)->clone(), fSwizzle); |
John Stiles | eed56f0 | 2020-06-04 13:30:51 -0400 | [diff] [blame] | 280 | } |
Brian Salomon | 216f2e0 | 2017-07-25 15:52:51 -0400 | [diff] [blame] | 281 | |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 282 | private: |
John Stiles | eed56f0 | 2020-06-04 13:30:51 -0400 | [diff] [blame] | 283 | SwizzleFragmentProcessor(std::unique_ptr<GrFragmentProcessor> fp, const GrSwizzle& swizzle) |
| 284 | : INHERITED(kSwizzleFragmentProcessor_ClassID, ProcessorOptimizationFlags(fp.get())) |
| 285 | , fSwizzle(swizzle) { |
Michael Ludwig | 9aba625 | 2020-06-22 14:46:36 -0400 | [diff] [blame] | 286 | this->registerChild(std::move(fp)); |
John Stiles | eed56f0 | 2020-06-04 13:30:51 -0400 | [diff] [blame] | 287 | } |
Robert Phillips | 1c9686b | 2017-06-30 08:40:28 -0400 | [diff] [blame] | 288 | |
Brian Salomon | 18ab203 | 2021-02-23 10:07:05 -0500 | [diff] [blame] | 289 | std::unique_ptr<GrGLSLFragmentProcessor> onMakeProgramImpl() const override { |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 290 | class GLFP : public GrGLSLFragmentProcessor { |
| 291 | public: |
| 292 | void emitCode(EmitArgs& args) override { |
Brian Osman | 6b5dbb4 | 2020-07-15 15:31:05 -0400 | [diff] [blame] | 293 | SkString childColor = this->invokeChild(0, args); |
John Stiles | eed56f0 | 2020-06-04 13:30:51 -0400 | [diff] [blame] | 294 | |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 295 | const SwizzleFragmentProcessor& sfp = args.fFp.cast<SwizzleFragmentProcessor>(); |
| 296 | const GrSwizzle& swizzle = sfp.swizzle(); |
| 297 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
| 298 | |
John Stiles | 4bdc121 | 2020-12-14 18:04:13 -0500 | [diff] [blame] | 299 | fragBuilder->codeAppendf("return %s.%s;", |
| 300 | childColor.c_str(), swizzle.asString().c_str()); |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 301 | } |
| 302 | }; |
Brian Salomon | 18ab203 | 2021-02-23 10:07:05 -0500 | [diff] [blame] | 303 | return std::make_unique<GLFP>(); |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 304 | } |
| 305 | |
Brian Salomon | 13b2873 | 2021-08-06 15:33:58 -0400 | [diff] [blame] | 306 | void onAddToKey(const GrShaderCaps&, GrProcessorKeyBuilder* b) const override { |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 307 | b->add32(fSwizzle.asKey()); |
| 308 | } |
| 309 | |
| 310 | bool onIsEqual(const GrFragmentProcessor& other) const override { |
| 311 | const SwizzleFragmentProcessor& sfp = other.cast<SwizzleFragmentProcessor>(); |
| 312 | return fSwizzle == sfp.fSwizzle; |
| 313 | } |
| 314 | |
Brian Osman | 1d5b598 | 2018-10-01 13:41:39 -0400 | [diff] [blame] | 315 | SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& input) const override { |
Brian Osman | 36f3d1a | 2021-03-22 16:36:14 -0400 | [diff] [blame] | 316 | return fSwizzle.applyTo(ConstantOutputForConstantInput(this->childProcessor(0), input)); |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | GrSwizzle fSwizzle; |
| 320 | |
John Stiles | 7571f9e | 2020-09-02 22:42:33 -0400 | [diff] [blame] | 321 | using INHERITED = GrFragmentProcessor; |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 322 | }; |
| 323 | |
| 324 | if (!fp) { |
| 325 | return nullptr; |
| 326 | } |
| 327 | if (GrSwizzle::RGBA() == swizzle) { |
| 328 | return fp; |
| 329 | } |
John Stiles | eed56f0 | 2020-06-04 13:30:51 -0400 | [diff] [blame] | 330 | return SwizzleFragmentProcessor::Make(std::move(fp), swizzle); |
Brian Osman | ce42551 | 2017-03-22 14:37:50 -0400 | [diff] [blame] | 331 | } |
| 332 | |
Brian Salomon | aff329b | 2017-08-11 09:40:37 -0400 | [diff] [blame] | 333 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::MakeInputPremulAndMulByOutput( |
| 334 | std::unique_ptr<GrFragmentProcessor> fp) { |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 335 | class PremulFragmentProcessor : public GrFragmentProcessor { |
| 336 | public: |
Brian Salomon | aff329b | 2017-08-11 09:40:37 -0400 | [diff] [blame] | 337 | static std::unique_ptr<GrFragmentProcessor> Make( |
| 338 | std::unique_ptr<GrFragmentProcessor> processor) { |
| 339 | return std::unique_ptr<GrFragmentProcessor>( |
| 340 | new PremulFragmentProcessor(std::move(processor))); |
Robert Phillips | 1c9686b | 2017-06-30 08:40:28 -0400 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | const char* name() const override { return "Premultiply"; } |
| 344 | |
Brian Salomon | aff329b | 2017-08-11 09:40:37 -0400 | [diff] [blame] | 345 | std::unique_ptr<GrFragmentProcessor> clone() const override { |
Brian Osman | 12c5d29 | 2020-07-13 16:11:35 -0400 | [diff] [blame] | 346 | return Make(this->childProcessor(0)->clone()); |
Brian Salomon | 216f2e0 | 2017-07-25 15:52:51 -0400 | [diff] [blame] | 347 | } |
| 348 | |
Robert Phillips | 1c9686b | 2017-06-30 08:40:28 -0400 | [diff] [blame] | 349 | private: |
Brian Salomon | aff329b | 2017-08-11 09:40:37 -0400 | [diff] [blame] | 350 | PremulFragmentProcessor(std::unique_ptr<GrFragmentProcessor> processor) |
Ethan Nicholas | abff956 | 2017-10-09 10:54:08 -0400 | [diff] [blame] | 351 | : INHERITED(kPremulFragmentProcessor_ClassID, OptFlags(processor.get())) { |
Michael Ludwig | 9aba625 | 2020-06-22 14:46:36 -0400 | [diff] [blame] | 352 | this->registerChild(std::move(processor)); |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 353 | } |
| 354 | |
Brian Salomon | 18ab203 | 2021-02-23 10:07:05 -0500 | [diff] [blame] | 355 | std::unique_ptr<GrGLSLFragmentProcessor> onMakeProgramImpl() const override { |
egdaniel | 64c4728 | 2015-11-13 06:54:19 -0800 | [diff] [blame] | 356 | class GLFP : public GrGLSLFragmentProcessor { |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 357 | public: |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 358 | void emitCode(EmitArgs& args) override { |
cdalton | 8528541 | 2016-02-18 12:37:07 -0800 | [diff] [blame] | 359 | GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
John Stiles | 4bdc121 | 2020-12-14 18:04:13 -0500 | [diff] [blame] | 360 | SkString temp = this->invokeChild(/*childIndex=*/0, "half4(1)", args); |
| 361 | fragBuilder->codeAppendf("half4 color = %s;", temp.c_str()); |
| 362 | fragBuilder->codeAppendf("color.rgb *= %s.rgb;", args.fInputColor); |
| 363 | fragBuilder->codeAppendf("return color * %s.a;", args.fInputColor); |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 364 | } |
| 365 | }; |
Brian Salomon | 18ab203 | 2021-02-23 10:07:05 -0500 | [diff] [blame] | 366 | return std::make_unique<GLFP>(); |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 367 | } |
| 368 | |
Brian Salomon | 13b2873 | 2021-08-06 15:33:58 -0400 | [diff] [blame] | 369 | void onAddToKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override {} |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 370 | |
| 371 | bool onIsEqual(const GrFragmentProcessor&) const override { return true; } |
| 372 | |
Brian Salomon | 587e08f | 2017-01-27 10:59:27 -0500 | [diff] [blame] | 373 | static OptimizationFlags OptFlags(const GrFragmentProcessor* inner) { |
| 374 | OptimizationFlags flags = kNone_OptimizationFlags; |
| 375 | if (inner->preservesOpaqueInput()) { |
| 376 | flags |= kPreservesOpaqueInput_OptimizationFlag; |
| 377 | } |
| 378 | if (inner->hasConstantOutputForConstantInput()) { |
| 379 | flags |= kConstantOutputForConstantInput_OptimizationFlag; |
| 380 | } |
| 381 | return flags; |
| 382 | } |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 383 | |
Brian Osman | 1d5b598 | 2018-10-01 13:41:39 -0400 | [diff] [blame] | 384 | SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& input) const override { |
| 385 | SkPMColor4f childColor = ConstantOutputForConstantInput(this->childProcessor(0), |
Brian Osman | f28e55d | 2018-10-03 16:35:54 -0400 | [diff] [blame] | 386 | SK_PMColor4fWHITE); |
Brian Osman | 1d5b598 | 2018-10-01 13:41:39 -0400 | [diff] [blame] | 387 | SkPMColor4f premulInput = SkColor4f{ input.fR, input.fG, input.fB, input.fA }.premul(); |
| 388 | return premulInput * childColor; |
Brian Salomon | 587e08f | 2017-01-27 10:59:27 -0500 | [diff] [blame] | 389 | } |
| 390 | |
John Stiles | 7571f9e | 2020-09-02 22:42:33 -0400 | [diff] [blame] | 391 | using INHERITED = GrFragmentProcessor; |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 392 | }; |
| 393 | if (!fp) { |
| 394 | return nullptr; |
| 395 | } |
Robert Phillips | 1c9686b | 2017-06-30 08:40:28 -0400 | [diff] [blame] | 396 | return PremulFragmentProcessor::Make(std::move(fp)); |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | ////////////////////////////////////////////////////////////////////////////// |
| 400 | |
Brian Salomon | aff329b | 2017-08-11 09:40:37 -0400 | [diff] [blame] | 401 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::OverrideInput( |
Brian Salomon | c0d79e5 | 2019-04-10 15:02:11 -0400 | [diff] [blame] | 402 | std::unique_ptr<GrFragmentProcessor> fp, const SkPMColor4f& color, bool useUniform) { |
Robert Phillips | 1c9686b | 2017-06-30 08:40:28 -0400 | [diff] [blame] | 403 | if (!fp) { |
| 404 | return nullptr; |
| 405 | } |
Brian Osman | 5946589 | 2021-06-18 09:15:44 -0400 | [diff] [blame] | 406 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForColorFilter, R"( |
| 407 | uniform colorFilter fp; // Declared as colorFilter so we can use sample(..., color) |
| 408 | uniform half4 color; |
| 409 | half4 main(half4 inColor) { |
| 410 | return sample(fp, color); |
| 411 | } |
| 412 | )"); |
| 413 | SkASSERT(SkRuntimeEffectPriv::SupportsConstantOutputForConstantInput(effect)); |
| 414 | return GrSkSLFP::Make(effect, "OverrideInput", /*inputFP=*/nullptr, |
| 415 | color.isOpaque() ? GrSkSLFP::OptFlags::kPreservesOpaqueInput |
| 416 | : GrSkSLFP::OptFlags::kNone, |
| 417 | "fp", std::move(fp), |
| 418 | "color", GrSkSLFP::SpecializeIf(!useUniform, color)); |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 419 | } |
bsalomon | e25eea4 | 2015-09-29 06:38:55 -0700 | [diff] [blame] | 420 | |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 421 | ////////////////////////////////////////////////////////////////////////////// |
| 422 | |
John Stiles | 2a6f73c | 2021-07-29 19:36:20 -0400 | [diff] [blame] | 423 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::UseDestColorAsInput( |
| 424 | std::unique_ptr<GrFragmentProcessor> fp) { |
| 425 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForBlender, R"( |
| 426 | uniform colorFilter fp; // Declared as colorFilter so we can use sample(..., color) |
| 427 | half4 main(half4 src, half4 dst) { |
| 428 | return sample(fp, dst); |
| 429 | } |
| 430 | )"); |
| 431 | return GrSkSLFP::Make(effect, "UseDestColorAsInput", /*inputFP=*/nullptr, |
| 432 | GrSkSLFP::OptFlags::kNone, "fp", std::move(fp)); |
| 433 | } |
| 434 | |
| 435 | ////////////////////////////////////////////////////////////////////////////// |
| 436 | |
Brian Salomon | 25af480 | 2021-07-07 16:24:16 -0400 | [diff] [blame] | 437 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::MakeInputOpaqueAndPostApplyAlpha( |
| 438 | std::unique_ptr<GrFragmentProcessor> fp) { |
| 439 | if (!fp) { |
| 440 | return nullptr; |
| 441 | } |
| 442 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForColorFilter, R"( |
| 443 | uniform colorFilter fp; // Declared as colorFilter so we can use sample(..., color) |
| 444 | half4 main(half4 inColor) { |
| 445 | return inColor.a * sample(fp, unpremul(inColor).rgb1); |
| 446 | } |
| 447 | )"); |
| 448 | return GrSkSLFP::Make(effect, |
| 449 | "MakeInputOpaque", |
| 450 | /*inputFP=*/nullptr, |
| 451 | GrSkSLFP::OptFlags::kPreservesOpaqueInput, |
| 452 | "fp", std::move(fp)); |
| 453 | } |
| 454 | |
| 455 | ////////////////////////////////////////////////////////////////////////////// |
| 456 | |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 457 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::Compose( |
| 458 | std::unique_ptr<GrFragmentProcessor> f, std::unique_ptr<GrFragmentProcessor> g) { |
| 459 | class ComposeProcessor : public GrFragmentProcessor { |
| 460 | public: |
| 461 | static std::unique_ptr<GrFragmentProcessor> Make(std::unique_ptr<GrFragmentProcessor> f, |
| 462 | std::unique_ptr<GrFragmentProcessor> g) { |
| 463 | return std::unique_ptr<GrFragmentProcessor>(new ComposeProcessor(std::move(f), |
| 464 | std::move(g))); |
| 465 | } |
| 466 | |
| 467 | const char* name() const override { return "Compose"; } |
| 468 | |
| 469 | std::unique_ptr<GrFragmentProcessor> clone() const override { |
| 470 | return std::unique_ptr<GrFragmentProcessor>(new ComposeProcessor(*this)); |
| 471 | } |
| 472 | |
| 473 | private: |
Brian Salomon | 18ab203 | 2021-02-23 10:07:05 -0500 | [diff] [blame] | 474 | std::unique_ptr<GrGLSLFragmentProcessor> onMakeProgramImpl() const override { |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 475 | class GLFP : public GrGLSLFragmentProcessor { |
| 476 | public: |
| 477 | void emitCode(EmitArgs& args) override { |
Brian Osman | c5422d0 | 2021-03-12 16:06:35 -0500 | [diff] [blame] | 478 | SkString result = this->invokeChild(1, args); // g(x) |
| 479 | result = this->invokeChild(0, result.c_str(), args); // f(g(x)) |
John Stiles | 4964300 | 2020-10-19 18:52:40 -0400 | [diff] [blame] | 480 | args.fFragBuilder->codeAppendf("return %s;", result.c_str()); |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 481 | } |
| 482 | }; |
Brian Salomon | 18ab203 | 2021-02-23 10:07:05 -0500 | [diff] [blame] | 483 | return std::make_unique<GLFP>(); |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | ComposeProcessor(std::unique_ptr<GrFragmentProcessor> f, |
| 487 | std::unique_ptr<GrFragmentProcessor> g) |
| 488 | : INHERITED(kSeriesFragmentProcessor_ClassID, |
| 489 | f->optimizationFlags() & g->optimizationFlags()) { |
| 490 | this->registerChild(std::move(f)); |
| 491 | this->registerChild(std::move(g)); |
| 492 | } |
| 493 | |
| 494 | ComposeProcessor(const ComposeProcessor& that) |
| 495 | : INHERITED(kSeriesFragmentProcessor_ClassID, that.optimizationFlags()) { |
| 496 | this->cloneAndRegisterAllChildProcessors(that); |
| 497 | } |
| 498 | |
Brian Salomon | 13b2873 | 2021-08-06 15:33:58 -0400 | [diff] [blame] | 499 | void onAddToKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override {} |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 500 | |
| 501 | bool onIsEqual(const GrFragmentProcessor&) const override { return true; } |
| 502 | |
| 503 | SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& inColor) const override { |
| 504 | SkPMColor4f color = inColor; |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 505 | color = ConstantOutputForConstantInput(this->childProcessor(1), color); |
Brian Osman | c5422d0 | 2021-03-12 16:06:35 -0500 | [diff] [blame] | 506 | color = ConstantOutputForConstantInput(this->childProcessor(0), color); |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 507 | return color; |
| 508 | } |
| 509 | |
John Stiles | 7571f9e | 2020-09-02 22:42:33 -0400 | [diff] [blame] | 510 | using INHERITED = GrFragmentProcessor; |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 511 | }; |
| 512 | |
| 513 | // Allow either of the composed functions to be null. |
| 514 | if (f == nullptr) { |
| 515 | return g; |
| 516 | } |
| 517 | if (g == nullptr) { |
| 518 | return f; |
| 519 | } |
| 520 | |
| 521 | // Run an optimization pass on this composition. |
| 522 | GrProcessorAnalysisColor inputColor; |
| 523 | inputColor.setToUnknown(); |
| 524 | |
Brian Osman | c5422d0 | 2021-03-12 16:06:35 -0500 | [diff] [blame] | 525 | std::unique_ptr<GrFragmentProcessor> series[2] = {std::move(g), std::move(f)}; |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 526 | GrColorFragmentProcessorAnalysis info(inputColor, series, SK_ARRAY_COUNT(series)); |
| 527 | |
| 528 | SkPMColor4f knownColor; |
| 529 | int leadingFPsToEliminate = info.initialProcessorsToEliminate(&knownColor); |
| 530 | switch (leadingFPsToEliminate) { |
| 531 | default: |
| 532 | // We shouldn't eliminate more than we started with. |
| 533 | SkASSERT(leadingFPsToEliminate <= 2); |
| 534 | [[fallthrough]]; |
| 535 | case 0: |
| 536 | // Compose the two processors as requested. |
Brian Osman | c5422d0 | 2021-03-12 16:06:35 -0500 | [diff] [blame] | 537 | return ComposeProcessor::Make(/*f=*/std::move(series[1]), /*g=*/std::move(series[0])); |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 538 | case 1: |
| 539 | // Replace the first processor with a constant color. |
Brian Osman | c5422d0 | 2021-03-12 16:06:35 -0500 | [diff] [blame] | 540 | return ComposeProcessor::Make(/*f=*/std::move(series[1]), |
Brian Salomon | 354147a | 2021-04-14 11:15:05 -0400 | [diff] [blame] | 541 | /*g=*/MakeColor(knownColor)); |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 542 | case 2: |
| 543 | // Replace the entire composition with a constant color. |
Brian Salomon | 354147a | 2021-04-14 11:15:05 -0400 | [diff] [blame] | 544 | return MakeColor(knownColor); |
John Stiles | 024d745 | 2020-07-22 19:07:15 -0400 | [diff] [blame] | 545 | } |
| 546 | } |
| 547 | |
| 548 | ////////////////////////////////////////////////////////////////////////////// |
| 549 | |
Brian Osman | 48f83fd | 2021-06-23 15:51:26 +0000 | [diff] [blame] | 550 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::ColorMatrix( |
| 551 | std::unique_ptr<GrFragmentProcessor> child, |
| 552 | const float matrix[20], |
| 553 | bool unpremulInput, |
| 554 | bool clampRGBOutput, |
| 555 | bool premulOutput) { |
| 556 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForColorFilter, R"( |
| 557 | uniform half4x4 m; |
| 558 | uniform half4 v; |
| 559 | uniform int unpremulInput; // always specialized |
| 560 | uniform int clampRGBOutput; // always specialized |
| 561 | uniform int premulOutput; // always specialized |
| 562 | half4 main(half4 color) { |
| 563 | if (bool(unpremulInput)) { |
| 564 | color = unpremul(color); |
| 565 | } |
| 566 | color = m * color + v; |
| 567 | if (bool(clampRGBOutput)) { |
| 568 | color = saturate(color); |
| 569 | } else { |
| 570 | color.a = saturate(color.a); |
| 571 | } |
| 572 | if (bool(premulOutput)) { |
| 573 | color.rgb *= color.a; |
| 574 | } |
| 575 | return color; |
| 576 | } |
| 577 | )"); |
| 578 | SkASSERT(SkRuntimeEffectPriv::SupportsConstantOutputForConstantInput(effect)); |
| 579 | |
| 580 | SkM44 m44(matrix[ 0], matrix[ 1], matrix[ 2], matrix[ 3], |
| 581 | matrix[ 5], matrix[ 6], matrix[ 7], matrix[ 8], |
| 582 | matrix[10], matrix[11], matrix[12], matrix[13], |
| 583 | matrix[15], matrix[16], matrix[17], matrix[18]); |
| 584 | SkV4 v4 = {matrix[4], matrix[9], matrix[14], matrix[19]}; |
| 585 | return GrSkSLFP::Make(effect, "ColorMatrix", std::move(child), GrSkSLFP::OptFlags::kNone, |
| 586 | "m", m44, |
| 587 | "v", v4, |
| 588 | "unpremulInput", GrSkSLFP::Specialize(unpremulInput ? 1 : 0), |
| 589 | "clampRGBOutput", GrSkSLFP::Specialize(clampRGBOutput ? 1 : 0), |
| 590 | "premulOutput", GrSkSLFP::Specialize(premulOutput ? 1 : 0)); |
| 591 | } |
| 592 | |
| 593 | ////////////////////////////////////////////////////////////////////////////// |
| 594 | |
John Stiles | 5b3aff4 | 2021-07-29 17:20:22 -0400 | [diff] [blame] | 595 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::SurfaceColor() { |
| 596 | class SurfaceColorProcessor : public GrFragmentProcessor { |
John Stiles | bb04e3d | 2021-06-04 12:09:11 -0400 | [diff] [blame] | 597 | public: |
| 598 | static std::unique_ptr<GrFragmentProcessor> Make() { |
John Stiles | 5b3aff4 | 2021-07-29 17:20:22 -0400 | [diff] [blame] | 599 | return std::unique_ptr<GrFragmentProcessor>(new SurfaceColorProcessor()); |
John Stiles | bb04e3d | 2021-06-04 12:09:11 -0400 | [diff] [blame] | 600 | } |
| 601 | |
| 602 | std::unique_ptr<GrFragmentProcessor> clone() const override { return Make(); } |
| 603 | |
John Stiles | 5b3aff4 | 2021-07-29 17:20:22 -0400 | [diff] [blame] | 604 | const char* name() const override { return "SurfaceColor"; } |
John Stiles | bb04e3d | 2021-06-04 12:09:11 -0400 | [diff] [blame] | 605 | |
| 606 | private: |
| 607 | std::unique_ptr<GrGLSLFragmentProcessor> onMakeProgramImpl() const override { |
| 608 | class GLFP : public GrGLSLFragmentProcessor { |
| 609 | public: |
| 610 | void emitCode(EmitArgs& args) override { |
John Stiles | 5b3aff4 | 2021-07-29 17:20:22 -0400 | [diff] [blame] | 611 | const char* dstColor = args.fFragBuilder->dstColor(); |
| 612 | args.fFragBuilder->codeAppendf("return %s;", dstColor); |
John Stiles | bb04e3d | 2021-06-04 12:09:11 -0400 | [diff] [blame] | 613 | } |
| 614 | }; |
| 615 | return std::make_unique<GLFP>(); |
| 616 | } |
| 617 | |
John Stiles | 5b3aff4 | 2021-07-29 17:20:22 -0400 | [diff] [blame] | 618 | SurfaceColorProcessor() |
| 619 | : INHERITED(kSurfaceColorProcessor_ClassID, kNone_OptimizationFlags) { |
John Stiles | bc4bc5f | 2021-06-11 16:43:15 -0400 | [diff] [blame] | 620 | this->setWillReadDstColor(); |
John Stiles | bb04e3d | 2021-06-04 12:09:11 -0400 | [diff] [blame] | 621 | } |
| 622 | |
Brian Salomon | 13b2873 | 2021-08-06 15:33:58 -0400 | [diff] [blame] | 623 | void onAddToKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override {} |
John Stiles | bb04e3d | 2021-06-04 12:09:11 -0400 | [diff] [blame] | 624 | |
| 625 | bool onIsEqual(const GrFragmentProcessor&) const override { return true; } |
| 626 | |
| 627 | using INHERITED = GrFragmentProcessor; |
| 628 | }; |
| 629 | |
John Stiles | 5b3aff4 | 2021-07-29 17:20:22 -0400 | [diff] [blame] | 630 | return SurfaceColorProcessor::Make(); |
John Stiles | bb04e3d | 2021-06-04 12:09:11 -0400 | [diff] [blame] | 631 | } |
| 632 | |
| 633 | ////////////////////////////////////////////////////////////////////////////// |
| 634 | |
Brian Osman | 6290555 | 2021-06-21 13:11:01 -0400 | [diff] [blame] | 635 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::DeviceSpace( |
| 636 | std::unique_ptr<GrFragmentProcessor> fp) { |
Brian Salomon | 4f8d4be | 2021-07-30 18:21:32 -0400 | [diff] [blame] | 637 | if (!fp) { |
| 638 | return nullptr; |
| 639 | } |
| 640 | |
| 641 | class DeviceSpace : GrFragmentProcessor { |
| 642 | public: |
| 643 | static std::unique_ptr<GrFragmentProcessor> Make(std::unique_ptr<GrFragmentProcessor> fp) { |
| 644 | return std::unique_ptr<GrFragmentProcessor>(new DeviceSpace(std::move(fp))); |
Brian Osman | 6290555 | 2021-06-21 13:11:01 -0400 | [diff] [blame] | 645 | } |
Brian Salomon | 4f8d4be | 2021-07-30 18:21:32 -0400 | [diff] [blame] | 646 | |
| 647 | private: |
| 648 | DeviceSpace(std::unique_ptr<GrFragmentProcessor> fp) |
| 649 | : GrFragmentProcessor(kDeviceSpace_ClassID, fp->optimizationFlags()) { |
Brian Salomon | 9eca2ca | 2021-08-02 13:04:04 -0400 | [diff] [blame] | 650 | // Passing FragCoord here is the reason this is a subclass and not a runtime-FP. |
| 651 | this->registerChild(std::move(fp), SkSL::SampleUsage::FragCoord()); |
Brian Salomon | 4f8d4be | 2021-07-30 18:21:32 -0400 | [diff] [blame] | 652 | } |
| 653 | |
| 654 | std::unique_ptr<GrFragmentProcessor> clone() const override { |
| 655 | auto child = this->childProcessor(0)->clone(); |
| 656 | return std::unique_ptr<GrFragmentProcessor>(new DeviceSpace(std::move(child))); |
| 657 | } |
| 658 | |
| 659 | SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& f) const override { |
| 660 | return this->childProcessor(0)->constantOutputForConstantInput(f); |
| 661 | } |
| 662 | |
| 663 | std::unique_ptr<GrGLSLFragmentProcessor> onMakeProgramImpl() const override { |
| 664 | class Impl : public GrGLSLFragmentProcessor { |
| 665 | public: |
| 666 | Impl() = default; |
| 667 | void emitCode(GrGLSLFragmentProcessor::EmitArgs& args) override { |
| 668 | auto child = this->invokeChild(0, args.fInputColor, args, "sk_FragCoord.xy"); |
| 669 | args.fFragBuilder->codeAppendf("return %s;", child.c_str()); |
| 670 | } |
| 671 | }; |
| 672 | return std::make_unique<Impl>(); |
| 673 | } |
| 674 | |
Brian Salomon | 13b2873 | 2021-08-06 15:33:58 -0400 | [diff] [blame] | 675 | void onAddToKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override {} |
Brian Salomon | 4f8d4be | 2021-07-30 18:21:32 -0400 | [diff] [blame] | 676 | |
| 677 | bool onIsEqual(const GrFragmentProcessor& processor) const override { return true; } |
| 678 | |
| 679 | const char* name() const override { return "DeviceSpace"; } |
| 680 | }; |
| 681 | |
| 682 | return DeviceSpace::Make(std::move(fp)); |
Brian Osman | 6290555 | 2021-06-21 13:11:01 -0400 | [diff] [blame] | 683 | } |
| 684 | |
| 685 | ////////////////////////////////////////////////////////////////////////////// |
| 686 | |
Brian Osman | b384eb2 | 2021-06-24 15:34:08 -0400 | [diff] [blame] | 687 | #define CLIP_EDGE_SKSL \ |
| 688 | "const int kFillBW = 0;" \ |
| 689 | "const int kFillAA = 1;" \ |
| 690 | "const int kInverseFillBW = 2;" \ |
| 691 | "const int kInverseFillAA = 3;" |
| 692 | |
| 693 | static_assert(static_cast<int>(GrClipEdgeType::kFillBW) == 0); |
| 694 | static_assert(static_cast<int>(GrClipEdgeType::kFillAA) == 1); |
| 695 | static_assert(static_cast<int>(GrClipEdgeType::kInverseFillBW) == 2); |
| 696 | static_assert(static_cast<int>(GrClipEdgeType::kInverseFillAA) == 3); |
| 697 | |
| 698 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::Rect( |
| 699 | std::unique_ptr<GrFragmentProcessor> inputFP, GrClipEdgeType edgeType, SkRect rect) { |
| 700 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForShader, CLIP_EDGE_SKSL R"( |
| 701 | uniform int edgeType; // GrClipEdgeType, specialized |
| 702 | uniform float4 rectUniform; |
| 703 | |
| 704 | half4 main(float2 xy, half4 inColor) { |
| 705 | half coverage; |
| 706 | if (edgeType == kFillBW || edgeType == kInverseFillBW) { |
| 707 | // non-AA |
| 708 | coverage = all(greaterThan(float4(sk_FragCoord.xy, rectUniform.zw), |
| 709 | float4(rectUniform.xy, sk_FragCoord.xy))) ? 1 : 0; |
| 710 | } else { |
| 711 | // compute coverage relative to left and right edges, add, then subtract 1 to |
| 712 | // account for double counting. And similar for top/bottom. |
| 713 | half4 dists4 = clamp(half4(1, 1, -1, -1) * |
| 714 | half4(sk_FragCoord.xyxy - rectUniform), 0, 1); |
| 715 | half2 dists2 = dists4.xy + dists4.zw - 1; |
| 716 | coverage = dists2.x * dists2.y; |
| 717 | } |
| 718 | |
| 719 | if (edgeType == kInverseFillBW || edgeType == kInverseFillAA) { |
| 720 | coverage = 1.0 - coverage; |
| 721 | } |
| 722 | |
| 723 | return inColor * coverage; |
| 724 | } |
| 725 | )"); |
| 726 | |
| 727 | SkASSERT(rect.isSorted()); |
| 728 | // The AA math in the shader evaluates to 0 at the uploaded coordinates, so outset by 0.5 |
| 729 | // to interpolate from 0 at a half pixel inset and 1 at a half pixel outset of rect. |
Brian Osman | 50f0dad | 2021-07-08 13:47:25 -0400 | [diff] [blame] | 730 | SkRect rectUniform = GrClipEdgeTypeIsAA(edgeType) ? rect.makeOutset(.5f, .5f) : rect; |
Brian Osman | b384eb2 | 2021-06-24 15:34:08 -0400 | [diff] [blame] | 731 | |
| 732 | return GrSkSLFP::Make(effect, "Rect", std::move(inputFP), |
| 733 | GrSkSLFP::OptFlags::kCompatibleWithCoverageAsAlpha, |
| 734 | "edgeType", GrSkSLFP::Specialize(static_cast<int>(edgeType)), |
| 735 | "rectUniform", rectUniform); |
| 736 | } |
| 737 | |
| 738 | GrFPResult GrFragmentProcessor::Circle(std::unique_ptr<GrFragmentProcessor> inputFP, |
| 739 | GrClipEdgeType edgeType, |
| 740 | SkPoint center, |
| 741 | float radius) { |
| 742 | // A radius below half causes the implicit insetting done by this processor to become |
| 743 | // inverted. We could handle this case by making the processor code more complicated. |
Brian Osman | 50f0dad | 2021-07-08 13:47:25 -0400 | [diff] [blame] | 744 | if (radius < .5f && GrClipEdgeTypeIsInverseFill(edgeType)) { |
Brian Osman | b384eb2 | 2021-06-24 15:34:08 -0400 | [diff] [blame] | 745 | return GrFPFailure(std::move(inputFP)); |
| 746 | } |
| 747 | |
| 748 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForShader, CLIP_EDGE_SKSL R"( |
| 749 | uniform int edgeType; // GrClipEdgeType, specialized |
| 750 | // The circle uniform is (center.x, center.y, radius + 0.5, 1 / (radius + 0.5)) for regular |
| 751 | // fills and (..., radius - 0.5, 1 / (radius - 0.5)) for inverse fills. |
| 752 | uniform float4 circle; |
| 753 | |
| 754 | half4 main(float2 xy, half4 inColor) { |
| 755 | // TODO: Right now the distance to circle calculation is performed in a space normalized |
| 756 | // to the radius and then denormalized. This is to mitigate overflow on devices that |
| 757 | // don't have full float. |
| 758 | half d; |
| 759 | if (edgeType == kInverseFillBW || edgeType == kInverseFillAA) { |
| 760 | d = half((length((circle.xy - sk_FragCoord.xy) * circle.w) - 1.0) * circle.z); |
| 761 | } else { |
| 762 | d = half((1.0 - length((circle.xy - sk_FragCoord.xy) * circle.w)) * circle.z); |
| 763 | } |
| 764 | if (edgeType == kFillAA || edgeType == kInverseFillAA) { |
| 765 | return inColor * saturate(d); |
| 766 | } else { |
| 767 | return d > 0.5 ? inColor : half4(0); |
| 768 | } |
| 769 | } |
| 770 | )"); |
| 771 | |
| 772 | SkScalar effectiveRadius = radius; |
Brian Osman | 50f0dad | 2021-07-08 13:47:25 -0400 | [diff] [blame] | 773 | if (GrClipEdgeTypeIsInverseFill(edgeType)) { |
Brian Osman | b384eb2 | 2021-06-24 15:34:08 -0400 | [diff] [blame] | 774 | effectiveRadius -= 0.5f; |
| 775 | // When the radius is 0.5 effectiveRadius is 0 which causes an inf * 0 in the shader. |
| 776 | effectiveRadius = std::max(0.001f, effectiveRadius); |
| 777 | } else { |
| 778 | effectiveRadius += 0.5f; |
| 779 | } |
| 780 | SkV4 circle = {center.fX, center.fY, effectiveRadius, SkScalarInvert(effectiveRadius)}; |
| 781 | |
| 782 | return GrFPSuccess(GrSkSLFP::Make(effect, "Circle", std::move(inputFP), |
| 783 | GrSkSLFP::OptFlags::kCompatibleWithCoverageAsAlpha, |
| 784 | "edgeType", GrSkSLFP::Specialize(static_cast<int>(edgeType)), |
| 785 | "circle", circle)); |
| 786 | } |
| 787 | |
| 788 | GrFPResult GrFragmentProcessor::Ellipse(std::unique_ptr<GrFragmentProcessor> inputFP, |
| 789 | GrClipEdgeType edgeType, |
| 790 | SkPoint center, |
| 791 | SkPoint radii, |
| 792 | const GrShaderCaps& caps) { |
| 793 | const bool medPrecision = !caps.floatIs32Bits(); |
| 794 | |
| 795 | // Small radii produce bad results on devices without full float. |
| 796 | if (medPrecision && (radii.fX < 0.5f || radii.fY < 0.5f)) { |
| 797 | return GrFPFailure(std::move(inputFP)); |
| 798 | } |
| 799 | // Very narrow ellipses produce bad results on devices without full float |
| 800 | if (medPrecision && (radii.fX > 255*radii.fY || radii.fY > 255*radii.fX)) { |
| 801 | return GrFPFailure(std::move(inputFP)); |
| 802 | } |
| 803 | // Very large ellipses produce bad results on devices without full float |
| 804 | if (medPrecision && (radii.fX > 16384 || radii.fY > 16384)) { |
| 805 | return GrFPFailure(std::move(inputFP)); |
| 806 | } |
| 807 | |
| 808 | static auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForShader, CLIP_EDGE_SKSL R"( |
| 809 | uniform int edgeType; // GrClipEdgeType, specialized |
| 810 | uniform int medPrecision; // !sk_Caps.floatIs32Bits, specialized |
| 811 | |
| 812 | uniform float4 ellipse; |
| 813 | uniform float2 scale; // only for medPrecision |
| 814 | |
| 815 | half4 main(float2 xy, half4 inColor) { |
| 816 | // d is the offset to the ellipse center |
| 817 | float2 d = sk_FragCoord.xy - ellipse.xy; |
| 818 | // If we're on a device with a "real" mediump then we'll do the distance computation in |
| 819 | // a space that is normalized by the larger radius or 128, whichever is smaller. The |
| 820 | // scale uniform will be scale, 1/scale. The inverse squared radii uniform values are |
| 821 | // already in this normalized space. The center is not. |
| 822 | if (bool(medPrecision)) { |
| 823 | d *= scale.y; |
| 824 | } |
| 825 | float2 Z = d * ellipse.zw; |
| 826 | // implicit is the evaluation of (x/rx)^2 + (y/ry)^2 - 1. |
| 827 | float implicit = dot(Z, d) - 1; |
| 828 | // grad_dot is the squared length of the gradient of the implicit. |
| 829 | float grad_dot = 4 * dot(Z, Z); |
| 830 | // Avoid calling inversesqrt on zero. |
| 831 | if (bool(medPrecision)) { |
| 832 | grad_dot = max(grad_dot, 6.1036e-5); |
| 833 | } else { |
| 834 | grad_dot = max(grad_dot, 1.1755e-38); |
| 835 | } |
| 836 | float approx_dist = implicit * inversesqrt(grad_dot); |
| 837 | if (bool(medPrecision)) { |
| 838 | approx_dist *= scale.x; |
| 839 | } |
| 840 | |
| 841 | half alpha; |
| 842 | if (edgeType == kFillBW) { |
| 843 | alpha = approx_dist > 0.0 ? 0.0 : 1.0; |
| 844 | } else if (edgeType == kFillAA) { |
| 845 | alpha = saturate(0.5 - half(approx_dist)); |
| 846 | } else if (edgeType == kInverseFillBW) { |
| 847 | alpha = approx_dist > 0.0 ? 1.0 : 0.0; |
| 848 | } else { // edgeType == kInverseFillAA |
| 849 | alpha = saturate(0.5 + half(approx_dist)); |
| 850 | } |
| 851 | return inColor * alpha; |
| 852 | } |
| 853 | )"); |
| 854 | |
| 855 | float invRXSqd; |
| 856 | float invRYSqd; |
| 857 | SkV2 scale = {1, 1}; |
| 858 | // If we're using a scale factor to work around precision issues, choose the larger radius as |
| 859 | // the scale factor. The inv radii need to be pre-adjusted by the scale factor. |
| 860 | if (medPrecision) { |
| 861 | if (radii.fX > radii.fY) { |
| 862 | invRXSqd = 1.f; |
| 863 | invRYSqd = (radii.fX * radii.fX) / (radii.fY * radii.fY); |
| 864 | scale = {radii.fX, 1.f / radii.fX}; |
| 865 | } else { |
| 866 | invRXSqd = (radii.fY * radii.fY) / (radii.fX * radii.fX); |
| 867 | invRYSqd = 1.f; |
| 868 | scale = {radii.fY, 1.f / radii.fY}; |
| 869 | } |
| 870 | } else { |
| 871 | invRXSqd = 1.f / (radii.fX * radii.fX); |
| 872 | invRYSqd = 1.f / (radii.fY * radii.fY); |
| 873 | } |
| 874 | SkV4 ellipse = {center.fX, center.fY, invRXSqd, invRYSqd}; |
| 875 | |
| 876 | return GrFPSuccess(GrSkSLFP::Make(effect, "Ellipse", std::move(inputFP), |
| 877 | GrSkSLFP::OptFlags::kCompatibleWithCoverageAsAlpha, |
| 878 | "edgeType", GrSkSLFP::Specialize(static_cast<int>(edgeType)), |
| 879 | "medPrecision", GrSkSLFP::Specialize<int>(medPrecision), |
| 880 | "ellipse", ellipse, |
| 881 | "scale", scale)); |
| 882 | } |
| 883 | |
| 884 | ////////////////////////////////////////////////////////////////////////////// |
| 885 | |
Brian Osman | 043f010 | 2021-06-30 14:30:34 -0400 | [diff] [blame] | 886 | std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::HighPrecision( |
| 887 | std::unique_ptr<GrFragmentProcessor> fp) { |
| 888 | class HighPrecisionFragmentProcessor : public GrFragmentProcessor { |
| 889 | public: |
| 890 | static std::unique_ptr<GrFragmentProcessor> Make(std::unique_ptr<GrFragmentProcessor> fp) { |
| 891 | return std::unique_ptr<GrFragmentProcessor>( |
| 892 | new HighPrecisionFragmentProcessor(std::move(fp))); |
| 893 | } |
| 894 | |
| 895 | const char* name() const override { return "HighPrecision"; } |
| 896 | |
| 897 | std::unique_ptr<GrFragmentProcessor> clone() const override { |
| 898 | return Make(this->childProcessor(0)->clone()); |
| 899 | } |
| 900 | |
| 901 | private: |
| 902 | HighPrecisionFragmentProcessor(std::unique_ptr<GrFragmentProcessor> fp) |
| 903 | : INHERITED(kHighPrecisionFragmentProcessor_ClassID, |
| 904 | ProcessorOptimizationFlags(fp.get())) { |
| 905 | this->registerChild(std::move(fp)); |
| 906 | } |
| 907 | |
| 908 | std::unique_ptr<GrGLSLFragmentProcessor> onMakeProgramImpl() const override { |
| 909 | class GLFP : public GrGLSLFragmentProcessor { |
| 910 | public: |
| 911 | void emitCode(EmitArgs& args) override { |
| 912 | SkString childColor = this->invokeChild(0, args); |
| 913 | |
| 914 | args.fFragBuilder->forceHighPrecision(); |
| 915 | args.fFragBuilder->codeAppendf("return %s;", childColor.c_str()); |
| 916 | } |
| 917 | }; |
| 918 | return std::make_unique<GLFP>(); |
| 919 | } |
| 920 | |
Brian Salomon | 13b2873 | 2021-08-06 15:33:58 -0400 | [diff] [blame] | 921 | void onAddToKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override {} |
Brian Osman | 043f010 | 2021-06-30 14:30:34 -0400 | [diff] [blame] | 922 | bool onIsEqual(const GrFragmentProcessor& other) const override { return true; } |
| 923 | |
| 924 | SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& input) const override { |
| 925 | return ConstantOutputForConstantInput(this->childProcessor(0), input); |
| 926 | } |
| 927 | |
| 928 | using INHERITED = GrFragmentProcessor; |
| 929 | }; |
| 930 | |
| 931 | return HighPrecisionFragmentProcessor::Make(std::move(fp)); |
| 932 | } |