| /* |
| * Copyright 2019 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/core/SkAlphaType.h" |
| #include "include/core/SkBlendMode.h" |
| #include "include/core/SkBlender.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkCapabilities.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkColorFilter.h" |
| #include "include/core/SkColorType.h" |
| #include "include/core/SkData.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPixmap.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkShader.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkSpan.h" |
| #include "include/core/SkStream.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkSurface.h" |
| #include "include/core/SkTypes.h" |
| #include "include/effects/SkBlenders.h" |
| #include "include/effects/SkGradientShader.h" |
| #include "include/effects/SkRuntimeEffect.h" |
| #include "include/gpu/GpuTypes.h" |
| #include "include/gpu/GrDirectContext.h" |
| #include "include/private/SkColorData.h" |
| #include "include/private/SkSLSampleUsage.h" |
| #include "include/private/SkSLString.h" |
| #include "include/private/base/SkTArray.h" |
| #include "include/sksl/SkSLDebugTrace.h" |
| #include "include/sksl/SkSLVersion.h" |
| #include "src/base/SkTLazy.h" |
| #include "src/core/SkColorSpacePriv.h" |
| #include "src/core/SkRuntimeEffectPriv.h" |
| #include "src/gpu/KeyBuilder.h" |
| #include "src/gpu/SkBackingFit.h" |
| #include "src/gpu/ganesh/GrCaps.h" |
| #include "src/gpu/ganesh/GrColor.h" |
| #include "src/gpu/ganesh/GrDirectContextPriv.h" |
| #include "src/gpu/ganesh/GrFragmentProcessor.h" |
| #include "src/gpu/ganesh/GrImageInfo.h" |
| #include "src/gpu/ganesh/GrPixmap.h" |
| #include "src/gpu/ganesh/SurfaceFillContext.h" |
| #include "src/gpu/ganesh/effects/GrSkSLFP.h" |
| #include "tests/CtsEnforcement.h" |
| #include "tests/Test.h" |
| |
| #include <array> |
| #include <cstdint> |
| #include <functional> |
| #include <initializer_list> |
| #include <memory> |
| #include <string> |
| #include <thread> |
| #include <utility> |
| |
| class GrRecordingContext; |
| struct GrContextOptions; |
| struct SkIPoint; |
| |
| #ifdef SK_GRAPHITE_ENABLED |
| #include "include/gpu/graphite/Context.h" |
| #include "include/gpu/graphite/Recorder.h" |
| #include "include/gpu/graphite/Recording.h" |
| #include "src/gpu/graphite/Surface_Graphite.h" |
| |
| struct GraphiteInfo { |
| skgpu::graphite::Context* context = nullptr; |
| skgpu::graphite::Recorder* recorder = nullptr; |
| }; |
| #else |
| struct GraphiteInfo { |
| void* context = nullptr; |
| void* recorder = nullptr; |
| }; |
| #endif |
| |
| void test_invalid_effect(skiatest::Reporter* r, const char* src, const char* expected) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForShader(SkString(src)); |
| REPORTER_ASSERT(r, !effect); |
| REPORTER_ASSERT(r, errorText.contains(expected), |
| "Expected error message to contain \"%s\". Actual message: \"%s\"", |
| expected, errorText.c_str()); |
| } |
| |
| #define EMPTY_MAIN "half4 main(float2 p) { return half4(0); }" |
| |
| DEF_TEST(SkRuntimeEffectInvalid_NoInVariables, r) { |
| // 'in' variables aren't allowed at all: |
| test_invalid_effect(r, "in bool b;" EMPTY_MAIN, "'in'"); |
| test_invalid_effect(r, "in float f;" EMPTY_MAIN, "'in'"); |
| test_invalid_effect(r, "in float2 v;" EMPTY_MAIN, "'in'"); |
| test_invalid_effect(r, "in half3x3 m;" EMPTY_MAIN, "'in'"); |
| } |
| |
| DEF_TEST(SkRuntimeEffectInvalid_UndefinedFunction, r) { |
| test_invalid_effect(r, "half4 missing(); half4 main(float2 p) { return missing(); }", |
| "function 'half4 missing()' is not defined"); |
| } |
| |
| DEF_TEST(SkRuntimeEffectInvalid_UndefinedMain, r) { |
| // Shouldn't be possible to create an SkRuntimeEffect without "main" |
| test_invalid_effect(r, "", "main"); |
| } |
| |
| DEF_TEST(SkRuntimeEffectInvalid_SkCapsDisallowed, r) { |
| // sk_Caps is an internal system. It should not be visible to runtime effects |
| test_invalid_effect( |
| r, |
| "half4 main(float2 p) { return sk_Caps.floatIs32Bits ? half4(1) : half4(0); }", |
| "name 'sk_Caps' is reserved"); |
| } |
| |
| DEF_TEST(SkRuntimeEffect_DeadCodeEliminationStackOverflow, r) { |
| // Verify that a deeply-nested loop does not cause stack overflow during SkVM dead-code |
| // elimination. |
| auto [effect, errorText] = SkRuntimeEffect::MakeForColorFilter(SkString(R"( |
| half4 main(half4 color) { |
| half value = color.r; |
| |
| for (int a=0; a<10; ++a) { // 10 |
| for (int b=0; b<10; ++b) { // 100 |
| for (int c=0; c<10; ++c) { // 1000 |
| for (int d=0; d<10; ++d) { // 10000 |
| ++value; |
| }}}} |
| |
| return value.xxxx; |
| } |
| )")); |
| REPORTER_ASSERT(r, effect, "%s", errorText.c_str()); |
| } |
| |
| DEF_TEST(SkRuntimeEffectCanDisableES2Restrictions, r) { |
| auto test_valid_es3 = [](skiatest::Reporter* r, const char* sksl) { |
| SkRuntimeEffect::Options opt = SkRuntimeEffectPriv::ES3Options(); |
| auto [effect, errorText] = SkRuntimeEffect::MakeForShader(SkString(sksl), opt); |
| REPORTER_ASSERT(r, effect, "%s", errorText.c_str()); |
| }; |
| |
| test_invalid_effect(r, "float f[2] = float[2](0, 1);" EMPTY_MAIN, "construction of array type"); |
| test_valid_es3 (r, "float f[2] = float[2](0, 1);" EMPTY_MAIN); |
| } |
| |
| DEF_TEST(SkRuntimeEffectCanEnableVersion300, r) { |
| auto test_valid = [](skiatest::Reporter* r, const char* sksl) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForShader(SkString(sksl)); |
| REPORTER_ASSERT(r, effect, "%s", errorText.c_str()); |
| }; |
| |
| test_invalid_effect(r, "#version 100\nfloat f[2] = float[2](0, 1);" EMPTY_MAIN, |
| "construction of array type"); |
| test_valid (r, "#version 300\nfloat f[2] = float[2](0, 1);" EMPTY_MAIN); |
| } |
| |
| DEF_TEST(SkRuntimeEffectUniformFlags, r) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForShader(SkString(R"( |
| uniform int simple; // should have no flags |
| uniform float arrayOfOne[1]; // should have kArray_Flag |
| uniform float arrayOfMultiple[2]; // should have kArray_Flag |
| layout(color) uniform float4 color; // should have kColor_Flag |
| uniform half3 halfPrecisionFloat; // should have kHalfPrecision_Flag |
| layout(color) uniform half4 allFlags[2]; // should have Array | Color | HalfPrecision |
| )" EMPTY_MAIN)); |
| REPORTER_ASSERT(r, effect, "%s", errorText.c_str()); |
| |
| SkSpan<const SkRuntimeEffect::Uniform> uniforms = effect->uniforms(); |
| REPORTER_ASSERT(r, uniforms.size() == 6); |
| |
| REPORTER_ASSERT(r, uniforms[0].flags == 0); |
| REPORTER_ASSERT(r, uniforms[1].flags == SkRuntimeEffect::Uniform::kArray_Flag); |
| REPORTER_ASSERT(r, uniforms[2].flags == SkRuntimeEffect::Uniform::kArray_Flag); |
| REPORTER_ASSERT(r, uniforms[3].flags == SkRuntimeEffect::Uniform::kColor_Flag); |
| REPORTER_ASSERT(r, uniforms[4].flags == SkRuntimeEffect::Uniform::kHalfPrecision_Flag); |
| REPORTER_ASSERT(r, uniforms[5].flags == (SkRuntimeEffect::Uniform::kArray_Flag | |
| SkRuntimeEffect::Uniform::kColor_Flag | |
| SkRuntimeEffect::Uniform::kHalfPrecision_Flag)); |
| } |
| |
| DEF_TEST(SkRuntimeEffectValidation, r) { |
| auto es2Effect = SkRuntimeEffect::MakeForShader(SkString("#version 100\n" EMPTY_MAIN)).effect; |
| auto es3Effect = SkRuntimeEffect::MakeForShader(SkString("#version 300\n" EMPTY_MAIN)).effect; |
| REPORTER_ASSERT(r, es2Effect && es3Effect); |
| |
| auto es2Caps = SkCapabilities::RasterBackend(); |
| REPORTER_ASSERT(r, es2Caps->skslVersion() == SkSL::Version::k100); |
| |
| REPORTER_ASSERT(r, SkRuntimeEffectPriv::CanDraw(es2Caps.get(), es2Effect.get())); |
| REPORTER_ASSERT(r, !SkRuntimeEffectPriv::CanDraw(es2Caps.get(), es3Effect.get())); |
| } |
| |
| DEF_TEST(SkRuntimeEffectForColorFilter, r) { |
| // Tests that the color filter factory rejects or accepts certain SkSL constructs |
| auto test_valid = [r](const char* sksl) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForColorFilter(SkString(sksl)); |
| REPORTER_ASSERT(r, effect, "%s", errorText.c_str()); |
| }; |
| |
| auto test_invalid = [r](const char* sksl, const char* expected) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForColorFilter(SkString(sksl)); |
| REPORTER_ASSERT(r, !effect); |
| REPORTER_ASSERT(r, |
| errorText.contains(expected), |
| "Expected error message to contain \"%s\". Actual message: \"%s\"", |
| expected, |
| errorText.c_str()); |
| }; |
| |
| // Color filters must use the 'half4 main(half4)' signature. Either color can be float4/vec4 |
| test_valid("half4 main(half4 c) { return c; }"); |
| test_valid("float4 main(half4 c) { return c; }"); |
| test_valid("half4 main(float4 c) { return c; }"); |
| test_valid("float4 main(float4 c) { return c; }"); |
| test_valid("vec4 main(half4 c) { return c; }"); |
| test_valid("half4 main(vec4 c) { return c; }"); |
| test_valid("vec4 main(vec4 c) { return c; }"); |
| |
| // Invalid return types |
| test_invalid("void main(half4 c) {}", "'main' must return"); |
| test_invalid("half3 main(half4 c) { return c.rgb; }", "'main' must return"); |
| |
| // Invalid argument types (some are valid as shaders, but not color filters) |
| test_invalid("half4 main() { return half4(1); }", "'main' parameter"); |
| test_invalid("half4 main(float2 p) { return half4(1); }", "'main' parameter"); |
| test_invalid("half4 main(float2 p, half4 c) { return c; }", "'main' parameter"); |
| |
| // sk_FragCoord should not be available |
| test_invalid("half4 main(half4 c) { return sk_FragCoord.xy01; }", "unknown identifier"); |
| |
| // Sampling a child shader requires that we pass explicit coords |
| test_valid("uniform shader child;" |
| "half4 main(half4 c) { return child.eval(c.rg); }"); |
| |
| // Sampling a colorFilter requires a color |
| test_valid("uniform colorFilter child;" |
| "half4 main(half4 c) { return child.eval(c); }"); |
| |
| // Sampling a blender requires two colors |
| test_valid("uniform blender child;" |
| "half4 main(half4 c) { return child.eval(c, c); }"); |
| } |
| |
| DEF_TEST(SkRuntimeEffectForBlender, r) { |
| // Tests that the blender factory rejects or accepts certain SkSL constructs |
| auto test_valid = [r](const char* sksl) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForBlender(SkString(sksl)); |
| REPORTER_ASSERT(r, effect, "%s", errorText.c_str()); |
| }; |
| |
| auto test_invalid = [r](const char* sksl, const char* expected) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForBlender(SkString(sksl)); |
| REPORTER_ASSERT(r, !effect); |
| REPORTER_ASSERT(r, |
| errorText.contains(expected), |
| "Expected error message to contain \"%s\". Actual message: \"%s\"", |
| expected, |
| errorText.c_str()); |
| }; |
| |
| // Blenders must use the 'half4 main(half4, half4)' signature. Any mixture of float4/vec4/half4 |
| // is allowed. |
| test_valid("half4 main(half4 s, half4 d) { return s; }"); |
| test_valid("float4 main(float4 s, float4 d) { return d; }"); |
| test_valid("float4 main(half4 s, float4 d) { return s; }"); |
| test_valid("half4 main(float4 s, half4 d) { return d; }"); |
| test_valid("vec4 main(half4 s, half4 d) { return s; }"); |
| test_valid("half4 main(vec4 s, vec4 d) { return d; }"); |
| test_valid("vec4 main(vec4 s, vec4 d) { return s; }"); |
| |
| // Invalid return types |
| test_invalid("void main(half4 s, half4 d) {}", "'main' must return"); |
| test_invalid("half3 main(half4 s, half4 d) { return s.rgb; }", "'main' must return"); |
| |
| // Invalid argument types (some are valid as shaders/color filters) |
| test_invalid("half4 main() { return half4(1); }", "'main' parameter"); |
| test_invalid("half4 main(half4 c) { return c; }", "'main' parameter"); |
| test_invalid("half4 main(float2 p) { return half4(1); }", "'main' parameter"); |
| test_invalid("half4 main(float2 p, half4 c) { return c; }", "'main' parameter"); |
| test_invalid("half4 main(float2 p, half4 a, half4 b) { return a; }", "'main' parameter"); |
| test_invalid("half4 main(half4 a, half4 b, half4 c) { return a; }", "'main' parameter"); |
| |
| // sk_FragCoord should not be available |
| test_invalid("half4 main(half4 s, half4 d) { return sk_FragCoord.xy01; }", |
| "unknown identifier"); |
| |
| // Sampling a child shader requires that we pass explicit coords |
| test_valid("uniform shader child;" |
| "half4 main(half4 s, half4 d) { return child.eval(s.rg); }"); |
| |
| // Sampling a colorFilter requires a color |
| test_valid("uniform colorFilter child;" |
| "half4 main(half4 s, half4 d) { return child.eval(d); }"); |
| |
| // Sampling a blender requires two colors |
| test_valid("uniform blender child;" |
| "half4 main(half4 s, half4 d) { return child.eval(s, d); }"); |
| } |
| |
| DEF_TEST(SkRuntimeEffectForShader, r) { |
| // Tests that the shader factory rejects or accepts certain SkSL constructs |
| auto test_valid = [r](const char* sksl, SkRuntimeEffect::Options options = {}) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForShader(SkString(sksl), options); |
| REPORTER_ASSERT(r, effect, "%s", errorText.c_str()); |
| }; |
| |
| auto test_invalid = [r](const char* sksl, |
| const char* expected, |
| SkRuntimeEffect::Options options = {}) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForShader(SkString(sksl)); |
| REPORTER_ASSERT(r, !effect); |
| REPORTER_ASSERT(r, |
| errorText.contains(expected), |
| "Expected error message to contain \"%s\". Actual message: \"%s\"", |
| expected, |
| errorText.c_str()); |
| }; |
| |
| // Shaders must use the 'half4 main(float2)' signature |
| // Either color can be half4/float4/vec4, but the coords must be float2/vec2 |
| test_valid("half4 main(float2 p) { return p.xyxy; }"); |
| test_valid("float4 main(float2 p) { return p.xyxy; }"); |
| test_valid("vec4 main(float2 p) { return p.xyxy; }"); |
| test_valid("half4 main(vec2 p) { return p.xyxy; }"); |
| test_valid("vec4 main(vec2 p) { return p.xyxy; }"); |
| |
| // The 'half4 main(float2, half4|float4)' signature is disallowed on both public and private |
| // runtime effects. |
| SkRuntimeEffect::Options options; |
| SkRuntimeEffectPriv::AllowPrivateAccess(&options); |
| test_invalid("half4 main(float2 p, half4 c) { return c; }", "'main' parameter"); |
| test_invalid("half4 main(float2 p, half4 c) { return c; }", "'main' parameter", options); |
| |
| test_invalid("half4 main(float2 p, float4 c) { return c; }", "'main' parameter"); |
| test_invalid("half4 main(float2 p, float4 c) { return c; }", "'main' parameter", options); |
| |
| test_invalid("half4 main(float2 p, vec4 c) { return c; }", "'main' parameter"); |
| test_invalid("half4 main(float2 p, vec4 c) { return c; }", "'main' parameter", options); |
| |
| test_invalid("float4 main(float2 p, half4 c) { return c; }", "'main' parameter"); |
| test_invalid("float4 main(float2 p, half4 c) { return c; }", "'main' parameter", options); |
| |
| test_invalid("vec4 main(float2 p, half4 c) { return c; }", "'main' parameter"); |
| test_invalid("vec4 main(float2 p, half4 c) { return c; }", "'main' parameter", options); |
| |
| test_invalid("vec4 main(vec2 p, vec4 c) { return c; }", "'main' parameter"); |
| test_invalid("vec4 main(vec2 p, vec4 c) { return c; }", "'main' parameter", options); |
| |
| // Invalid return types |
| test_invalid("void main(float2 p) {}", "'main' must return"); |
| test_invalid("half3 main(float2 p) { return p.xy1; }", "'main' must return"); |
| |
| // Invalid argument types (some are valid as color filters, but not shaders) |
| test_invalid("half4 main() { return half4(1); }", "'main' parameter"); |
| test_invalid("half4 main(half4 c) { return c; }", "'main' parameter"); |
| |
| // sk_FragCoord should be available, but only if we've enabled it via Options |
| test_invalid("half4 main(float2 p) { return sk_FragCoord.xy01; }", |
| "unknown identifier 'sk_FragCoord'"); |
| |
| test_valid("half4 main(float2 p) { return sk_FragCoord.xy01; }", options); |
| |
| // Sampling a child shader requires that we pass explicit coords |
| test_valid("uniform shader child;" |
| "half4 main(float2 p) { return child.eval(p); }"); |
| |
| // Sampling a colorFilter requires a color |
| test_valid("uniform colorFilter child;" |
| "half4 main(float2 p) { return child.eval(half4(1)); }"); |
| |
| // Sampling a blender requires two colors |
| test_valid("uniform blender child;" |
| "half4 main(float2 p) { return child.eval(half4(0.5), half4(0.6)); }"); |
| } |
| |
| using PreTestFn = std::function<void(SkCanvas*, SkPaint*)>; |
| |
| void paint_canvas(SkCanvas* canvas, SkPaint* paint, const PreTestFn& preTestCallback) { |
| canvas->save(); |
| if (preTestCallback) { |
| preTestCallback(canvas, paint); |
| } |
| canvas->drawPaint(*paint); |
| canvas->restore(); |
| } |
| |
| static bool read_pixels(SkSurface* surface, |
| GrColor* pixels) { |
| SkImageInfo info = surface->imageInfo(); |
| SkPixmap dest{info, pixels, info.minRowBytes()}; |
| return surface->readPixels(dest, /*srcX=*/0, /*srcY=*/0); |
| } |
| |
| static void verify_2x2_surface_results(skiatest::Reporter* r, |
| const SkRuntimeEffect* effect, |
| SkSurface* surface, |
| std::array<GrColor, 4> expected) { |
| std::array<GrColor, 4> actual; |
| SkImageInfo info = surface->imageInfo(); |
| if (!read_pixels(surface, actual.data())) { |
| REPORT_FAILURE(r, "readPixels", SkString("readPixels failed")); |
| return; |
| } |
| |
| if (actual != expected) { |
| REPORT_FAILURE(r, "Runtime effect didn't match expectations", |
| SkStringPrintf("\n" |
| "Expected: [ %08x %08x %08x %08x ]\n" |
| "Got : [ %08x %08x %08x %08x ]\n" |
| "SkSL:\n%s\n", |
| expected[0], expected[1], expected[2], expected[3], |
| actual[0], actual[1], actual[2], actual[3], |
| effect->source().c_str())); |
| } |
| } |
| |
| static sk_sp<SkSurface> make_surface(GrRecordingContext* grContext, |
| const GraphiteInfo* graphite, |
| SkISize size) { |
| const SkImageInfo info = SkImageInfo::Make(size, kRGBA_8888_SkColorType, kPremul_SkAlphaType); |
| sk_sp<SkSurface> surface; |
| if (graphite) { |
| #ifdef SK_GRAPHITE_ENABLED |
| surface = SkSurface::MakeGraphite(graphite->recorder, info); |
| #endif |
| } else if (grContext) { |
| surface = SkSurface::MakeRenderTarget(grContext, skgpu::Budgeted::kNo, info); |
| } else { |
| surface = SkSurface::MakeRaster(info); |
| } |
| SkASSERT(surface); |
| return surface; |
| } |
| |
| class TestEffect { |
| public: |
| TestEffect(skiatest::Reporter* r, |
| GrRecordingContext* grContext, |
| const GraphiteInfo* graphite, |
| SkISize size = {2, 2}) |
| : fReporter(r), fGrContext(grContext), fGraphite(graphite), fSize(size) { |
| fSurface = make_surface(fGrContext, fGraphite, fSize); |
| } |
| |
| void build(const char* src) { |
| SkRuntimeEffect::Options options; |
| SkRuntimeEffectPriv::AllowPrivateAccess(&options); |
| auto [effect, errorText] = SkRuntimeEffect::MakeForShader(SkString(src), options); |
| if (!effect) { |
| ERRORF(fReporter, "Effect didn't compile: %s", errorText.c_str()); |
| return; |
| } |
| fBuilder.init(std::move(effect)); |
| } |
| |
| SkRuntimeShaderBuilder::BuilderUniform uniform(const char* name) { |
| return fBuilder->uniform(name); |
| } |
| |
| SkRuntimeShaderBuilder::BuilderChild child(const char* name) { |
| return fBuilder->child(name); |
| } |
| |
| void test(std::array<GrColor, 4> expected, PreTestFn preTestCallback = nullptr) { |
| auto shader = fBuilder->makeShader(); |
| if (!shader) { |
| ERRORF(fReporter, "Effect didn't produce a shader"); |
| return; |
| } |
| |
| SkCanvas* canvas = fSurface->getCanvas(); |
| |
| // We shouldn't need to clear the canvas, because we are about to paint over the whole thing |
| // with a `source` blend mode. However, there are a few devices where the background can |
| // leak through when we paint with MSAA on. (This seems to be a driver/hardware bug.) |
| // Graphite, at present, uses MSAA to do `drawPaint`. To avoid flakiness in this test on |
| // those devices, we explicitly clear the canvas here. (skia:13761) |
| canvas->clear(SK_ColorBLACK); |
| |
| SkPaint paint; |
| paint.setShader(std::move(shader)); |
| paint.setBlendMode(SkBlendMode::kSrc); |
| |
| paint_canvas(canvas, &paint, preTestCallback); |
| |
| verify_2x2_surface_results(fReporter, fBuilder->effect(), fSurface.get(), expected); |
| } |
| |
| std::string trace(const SkIPoint& traceCoord) { |
| sk_sp<SkShader> shader = fBuilder->makeShader(); |
| if (!shader) { |
| ERRORF(fReporter, "Effect didn't produce a shader"); |
| return {}; |
| } |
| |
| auto [debugShader, debugTrace] = SkRuntimeEffect::MakeTraced(std::move(shader), traceCoord); |
| |
| SkCanvas* canvas = fSurface->getCanvas(); |
| SkPaint paint; |
| paint.setShader(std::move(debugShader)); |
| paint.setBlendMode(SkBlendMode::kSrc); |
| |
| paint_canvas(canvas, &paint, /*preTestCallback=*/nullptr); |
| |
| SkDynamicMemoryWStream wstream; |
| debugTrace->dump(&wstream); |
| sk_sp<SkData> streamData = wstream.detachAsData(); |
| return std::string(static_cast<const char*>(streamData->data()), streamData->size()); |
| } |
| |
| void test(GrColor expected, PreTestFn preTestCallback = nullptr) { |
| this->test({expected, expected, expected, expected}, preTestCallback); |
| } |
| |
| private: |
| skiatest::Reporter* fReporter; |
| sk_sp<SkSurface> fSurface; |
| GrRecordingContext* fGrContext; |
| const GraphiteInfo* fGraphite; |
| SkISize fSize; |
| SkTLazy<SkRuntimeShaderBuilder> fBuilder; |
| }; |
| |
| class TestBlend { |
| public: |
| TestBlend(skiatest::Reporter* r, GrRecordingContext* grContext, const GraphiteInfo* graphite) |
| : fReporter(r), fGrContext(grContext), fGraphite(graphite) { |
| fSurface = make_surface(fGrContext, fGraphite, /*size=*/{2, 2}); |
| } |
| |
| void build(const char* src) { |
| auto [effect, errorText] = SkRuntimeEffect::MakeForBlender(SkString(src)); |
| if (!effect) { |
| ERRORF(fReporter, "Effect didn't compile: %s", errorText.c_str()); |
| return; |
| } |
| fBuilder.init(std::move(effect)); |
| } |
| |
| SkSurface* surface() { |
| return fSurface.get(); |
| } |
| |
| SkRuntimeBlendBuilder::BuilderUniform uniform(const char* name) { |
| return fBuilder->uniform(name); |
| } |
| |
| SkRuntimeBlendBuilder::BuilderChild child(const char* name) { |
| return fBuilder->child(name); |
| } |
| |
| void test(std::array<GrColor, 4> expected, PreTestFn preTestCallback = nullptr) { |
| auto blender = fBuilder->makeBlender(); |
| if (!blender) { |
| ERRORF(fReporter, "Effect didn't produce a blender"); |
| return; |
| } |
| |
| SkCanvas* canvas = fSurface->getCanvas(); |
| SkPaint paint; |
| paint.setBlender(std::move(blender)); |
| paint.setColor(SK_ColorGRAY); |
| |
| paint_canvas(canvas, &paint, preTestCallback); |
| |
| verify_2x2_surface_results(fReporter, fBuilder->effect(), fSurface.get(), expected); |
| } |
| |
| void test(GrColor expected, PreTestFn preTestCallback = nullptr) { |
| this->test({expected, expected, expected, expected}, preTestCallback); |
| } |
| |
| private: |
| skiatest::Reporter* fReporter; |
| sk_sp<SkSurface> fSurface; |
| GrRecordingContext* fGrContext; |
| const GraphiteInfo* fGraphite; |
| SkTLazy<SkRuntimeBlendBuilder> fBuilder; |
| }; |
| |
| // Produces a shader which will paint these opaque colors in a 2x2 rectangle: |
| // [ Red, Green ] |
| // [ Blue, White ] |
| static sk_sp<SkShader> make_RGBW_shader() { |
| static constexpr SkColor colors[] = {SK_ColorWHITE, SK_ColorWHITE, |
| SK_ColorBLUE, SK_ColorBLUE, |
| SK_ColorRED, SK_ColorRED, |
| SK_ColorGREEN, SK_ColorGREEN}; |
| static constexpr SkScalar pos[] = { 0, .25f, .25f, .50f, .50f, .75, .75, 1 }; |
| static_assert(std::size(colors) == std::size(pos), "size mismatch"); |
| return SkGradientShader::MakeSweep(1, 1, colors, pos, std::size(colors)); |
| } |
| |
| static void test_RuntimeEffect_Shaders(skiatest::Reporter* r, |
| GrRecordingContext* grContext, |
| const GraphiteInfo* graphite) { |
| TestEffect effect(r, grContext, graphite); |
| using float4 = std::array<float, 4>; |
| using int4 = std::array<int, 4>; |
| |
| // Local coords |
| effect.build("half4 main(float2 p) { return half4(half2(p - 0.5), 0, 1); }"); |
| effect.test({0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFF00FFFF}); |
| |
| // Use of a simple uniform. (Draw twice with two values to ensure it's updated). |
| effect.build("uniform float4 gColor; half4 main(float2 p) { return half4(gColor); }"); |
| effect.uniform("gColor") = float4{ 0.0f, 0.25f, 0.75f, 1.0f }; |
| effect.test(0xFFBF4000); |
| effect.uniform("gColor") = float4{ 1.0f, 0.0f, 0.0f, 0.498f }; |
| effect.test(0x7F0000FF); // Tests that we don't clamp to valid premul |
| |
| // Same, with integer uniforms |
| effect.build("uniform int4 gColor; half4 main(float2 p) { return half4(gColor) / 255.0; }"); |
| effect.uniform("gColor") = int4{ 0x00, 0x40, 0xBF, 0xFF }; |
| effect.test(0xFFBF4000); |
| effect.uniform("gColor") = int4{ 0xFF, 0x00, 0x00, 0x7F }; |
| effect.test(0x7F0000FF); // Tests that we don't clamp to valid premul |
| |
| // Test sk_FragCoord (device coords). Rotate the canvas to be sure we're seeing device coords. |
| // Since the surface is 2x2, we should see (0,0), (1,0), (0,1), (1,1). Multiply by 0.498 to |
| // make sure we're not saturating unexpectedly. |
| effect.build( |
| "half4 main(float2 p) { return half4(0.498 * (half2(sk_FragCoord.xy) - 0.5), 0, 1); }"); |
| effect.test({0xFF000000, 0xFF00007F, 0xFF007F00, 0xFF007F7F}, |
| [](SkCanvas* canvas, SkPaint*) { canvas->rotate(45.0f); }); |
| |
| // Runtime effects should use relaxed precision rules by default |
| effect.build("half4 main(float2 p) { return float4(p - 0.5, 0, 1); }"); |
| effect.test({0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFF00FFFF}); |
| |
| // ... and support *returning* float4 (aka vec4), not just half4 |
| effect.build("float4 main(float2 p) { return float4(p - 0.5, 0, 1); }"); |
| effect.test({0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFF00FFFF}); |
| effect.build("vec4 main(float2 p) { return float4(p - 0.5, 0, 1); }"); |
| effect.test({0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFF00FFFF}); |
| |
| // Mutating coords should work. (skbug.com/10918) |
| effect.build("vec4 main(vec2 p) { p -= 0.5; return vec4(p, 0, 1); }"); |
| effect.test({0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFF00FFFF}); |
| effect.build("void moveCoords(inout vec2 p) { p -= 0.5; }" |
| "vec4 main(vec2 p) { moveCoords(p); return vec4(p, 0, 1); }"); |
| effect.test({0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFF00FFFF}); |
| |
| // |
| // Sampling children |
| // |
| |
| // Sampling a null shader should return the paint color |
| if (!graphite) { |
| // TODO: Graphite does not yet pass this test. |
| effect.build("uniform shader child;" |
| "half4 main(float2 p) { return child.eval(p); }"); |
| effect.child("child") = nullptr; |
| effect.test(0xFF00FFFF, |
| [](SkCanvas*, SkPaint* paint) { paint->setColor4f({1.0f, 1.0f, 0.0f, 1.0f}); }); |
| } |
| |
| // Sampling a null color-filter should return the passed-in color |
| effect.build("uniform colorFilter child;" |
| "half4 main(float2 p) { return child.eval(half4(1, 1, 0, 1)); }"); |
| effect.child("child") = nullptr; |
| effect.test(0xFF00FFFF); |
| |
| // Sampling a null blender should return blend_src_over(src, dest). |
| effect.build("uniform blender child;" |
| "half4 main(float2 p) {" |
| " float4 src = float4(p - 0.5, 0, 1) * 0.498;" |
| " return child.eval(src, half4(0, 0, 0, 1));" |
| "}"); |
| effect.child("child") = nullptr; |
| effect.test({0xFF000000, 0xFF00007F, 0xFF007F00, 0xFF007F7F}); |
| |
| // Sampling a simple child at our coordinates |
| sk_sp<SkShader> rgbwShader = make_RGBW_shader(); |
| |
| effect.build("uniform shader child;" |
| "half4 main(float2 p) { return child.eval(p); }"); |
| effect.child("child") = rgbwShader; |
| effect.test({0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 0xFFFFFFFF}); |
| |
| // Sampling with explicit coordinates (reflecting about the diagonal) |
| effect.build("uniform shader child;" |
| "half4 main(float2 p) { return child.eval(p.yx); }"); |
| effect.child("child") = rgbwShader; |
| effect.test({0xFF0000FF, 0xFFFF0000, 0xFF00FF00, 0xFFFFFFFF}); |
| |
| // Bind an image shader, but don't use it - ensure that we don't assert or generate bad shaders. |
| // (skbug.com/12429) |
| effect.build("uniform shader child;" |
| "half4 main(float2 p) { return half4(0, 1, 0, 1); }"); |
| effect.child("child") = rgbwShader; |
| effect.test(0xFF00FF00); |
| |
| // |
| // Helper functions |
| // |
| |
| // Test case for inlining in the pipeline-stage and fragment-shader passes (skbug.com/10526): |
| effect.build("float2 helper(float2 x) { return x + 1; }" |
| "half4 main(float2 p) { float2 v = helper(p); return half4(half2(v), 0, 1); }"); |
| effect.test(0xFF00FFFF); |
| } |
| |
| DEF_TEST(SkRuntimeEffectSimple, r) { |
| test_RuntimeEffect_Shaders(r, /*grContext=*/nullptr, /*graphite=*/nullptr); |
| } |
| |
| #ifdef SK_GRAPHITE_ENABLED |
| DEF_GRAPHITE_TEST_FOR_RENDERING_CONTEXTS(SkRuntimeEffectSimple_Graphite, r, context) { |
| std::unique_ptr<skgpu::graphite::Recorder> recorder = context->makeRecorder(); |
| GraphiteInfo graphite = {context, recorder.get()}; |
| test_RuntimeEffect_Shaders(r, /*grContext=*/nullptr, &graphite); |
| } |
| #endif |
| |
| DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(SkRuntimeEffectSimple_GPU, |
| r, |
| ctxInfo, |
| CtsEnforcement::kApiLevel_T) { |
| test_RuntimeEffect_Shaders(r, ctxInfo.directContext(), /*graphite=*/nullptr); |
| } |
| |
| static void verify_draw_obeys_capabilities(skiatest::Reporter* r, |
| const SkRuntimeEffect* effect, |
| SkSurface* surface, |
| const SkPaint& paint) { |
| // We expect the draw to do something if-and-only-if expectSuccess is true: |
| const bool expectSuccess = surface->capabilities()->skslVersion() >= SkSL::Version::k300; |
| |
| constexpr GrColor kGreen = 0xFF00FF00; |
| constexpr GrColor kRed = 0xFF0000FF; |
| const GrColor kExpected = expectSuccess ? kGreen : kRed; |
| |
| surface->getCanvas()->clear(SK_ColorRED); |
| surface->getCanvas()->drawPaint(paint); |
| verify_2x2_surface_results(r, effect, surface, {kExpected, kExpected, kExpected, kExpected}); |
| } |
| |
| static void test_RuntimeEffectObeysCapabilities(skiatest::Reporter* r, SkSurface* surface) { |
| // This test creates shaders and blenders that target `#version 300`. If a user validates an |
| // effect like this against a particular device, and later draws that effect to a device with |
| // insufficient capabilities -- we want to fail gracefully (drop the draw entirely). |
| // If the capabilities indicate that the effect is supported, we expect it to work. |
| // |
| // We test two different scenarios here: |
| // 1) An effect flagged as #version 300, but actually compatible with #version 100. |
| // 2) An effect flagged as #version 300, and using features not available in ES2. |
| // |
| // We expect both cases to fail cleanly on ES2-only devices -- nothing should be drawn, and |
| // there should be no asserts or driver shader-compilation errors. |
| // |
| // In all tests, we first clear the canvas to RED, then draw an effect that (if it renders) |
| // will fill the canvas with GREEN. We check that the final colors match our expectations, |
| // based on the device capabilities. |
| |
| // Effect that would actually work on CPU/ES2, but should still fail on those devices: |
| { |
| auto effect = SkRuntimeEffect::MakeForShader(SkString(R"( |
| #version 300 |
| half4 main(float2 xy) { return half4(0, 1, 0, 1); } |
| )")).effect; |
| REPORTER_ASSERT(r, effect); |
| SkPaint paint; |
| paint.setShader(effect->makeShader(/*uniforms=*/nullptr, /*children=*/{})); |
| REPORTER_ASSERT(r, paint.getShader()); |
| verify_draw_obeys_capabilities(r, effect.get(), surface, paint); |
| } |
| |
| // Effect that won't work on CPU/ES2 at all, and should fail gracefully on those devices. |
| // We choose to use bit-pun intrinsics because SkSL doesn't automatically inject an extension |
| // to enable them (like it does for derivatives). We pass a non-literal value so that SkSL's |
| // constant folding doesn't elide them entirely before the driver sees the shader. |
| { |
| auto effect = SkRuntimeEffect::MakeForShader(SkString(R"( |
| #version 300 |
| half4 main(float2 xy) { |
| half4 result = half4(0, 1, 0, 1); |
| result.g = intBitsToFloat(floatBitsToInt(result.g)); |
| return result; |
| } |
| )")).effect; |
| REPORTER_ASSERT(r, effect); |
| SkPaint paint; |
| paint.setShader(effect->makeShader(/*uniforms=*/nullptr, /*children=*/{})); |
| REPORTER_ASSERT(r, paint.getShader()); |
| verify_draw_obeys_capabilities(r, effect.get(), surface, paint); |
| } |
| |
| // |
| // As above, but with a blender |
| // |
| |
| { |
| auto effect = SkRuntimeEffect::MakeForBlender(SkString(R"( |
| #version 300 |
| half4 main(half4 src, half4 dst) { return half4(0, 1, 0, 1); } |
| )")).effect; |
| REPORTER_ASSERT(r, effect); |
| SkPaint paint; |
| paint.setBlender(effect->makeBlender(/*uniforms=*/nullptr, /*children=*/{})); |
| REPORTER_ASSERT(r, paint.getBlender()); |
| verify_draw_obeys_capabilities(r, effect.get(), surface, paint); |
| } |
| |
| { |
| auto effect = SkRuntimeEffect::MakeForBlender(SkString(R"( |
| #version 300 |
| half4 main(half4 src, half4 dst) { |
| half4 result = half4(0, 1, 0, 1); |
| result.g = intBitsToFloat(floatBitsToInt(result.g)); |
| return result; |
| } |
| )")).effect; |
| REPORTER_ASSERT(r, effect); |
| SkPaint paint; |
| paint.setBlender(effect->makeBlender(/*uniforms=*/nullptr, /*children=*/{})); |
| REPORTER_ASSERT(r, paint.getBlender()); |
| verify_draw_obeys_capabilities(r, effect.get(), surface, paint); |
| } |
| } |
| |
| DEF_TEST(SkRuntimeEffectObeysCapabilities_CPU, r) { |
| SkImageInfo info = SkImageInfo::Make(2, 2, kRGBA_8888_SkColorType, kPremul_SkAlphaType); |
| sk_sp<SkSurface> surface = SkSurface::MakeRaster(info); |
| REPORTER_ASSERT(r, surface); |
| test_RuntimeEffectObeysCapabilities(r, surface.get()); |
| } |
| |
| DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(SkRuntimeEffectObeysCapabilities_GPU, |
| r, |
| ctxInfo, |
| CtsEnforcement::kApiLevel_T) { |
| SkImageInfo info = SkImageInfo::Make(2, 2, kRGBA_8888_SkColorType, kPremul_SkAlphaType); |
| sk_sp<SkSurface> surface = |
| SkSurface::MakeRenderTarget(ctxInfo.directContext(), skgpu::Budgeted::kNo, info); |
| REPORTER_ASSERT(r, surface); |
| test_RuntimeEffectObeysCapabilities(r, surface.get()); |
| } |
| |
| DEF_TEST(SkRuntimeColorFilterLimitedToES2, r) { |
| // Verify that SkSL requesting #version 300 can't be used to create a color-filter effect. |
| // This restriction could be removed if we can find a way to implement filterColor for these |
| // color filters. |
| { |
| auto effect = SkRuntimeEffect::MakeForColorFilter(SkString(R"( |
| #version 300 |
| half4 main(half4 inColor) { return half4(1, 0, 0, 1); } |
| )")).effect; |
| REPORTER_ASSERT(r, !effect); |
| } |
| |
| { |
| auto effect = SkRuntimeEffect::MakeForColorFilter(SkString(R"( |
| #version 300 |
| uniform int loops; |
| half4 main(half4 inColor) { |
| half4 result = half4(1, 0, 0, 1); |
| for (int i = 0; i < loops; i++) { |
| result = result.argb; |
| } |
| return result; |
| } |
| )")).effect; |
| REPORTER_ASSERT(r, !effect); |
| } |
| } |
| |
| DEF_TEST(SkRuntimeEffectTraceShader, r) { |
| for (int imageSize : {2, 80}) { |
| TestEffect effect(r, /*grContext=*/nullptr, /*graphite=*/nullptr, |
| SkISize{imageSize, imageSize}); |
| effect.build(R"( |
| half4 main(float2 p) { |
| float2 val = p - 0.5; |
| return val.0y01; |
| } |
| )"); |
| int center = imageSize / 2; |
| std::string dump = effect.trace({center, 1}); |
| auto expectation = SkSL::String::printf(R"($0 = [main].result (float4 : slot 1/4, L2) |
| $1 = [main].result (float4 : slot 2/4, L2) |
| $2 = [main].result (float4 : slot 3/4, L2) |
| $3 = [main].result (float4 : slot 4/4, L2) |
| $4 = p (float2 : slot 1/2, L2) |
| $5 = p (float2 : slot 2/2, L2) |
| $6 = val (float2 : slot 1/2, L3) |
| $7 = val (float2 : slot 2/2, L3) |
| F0 = half4 main(float2 p) |
| |
| enter half4 main(float2 p) |
| p.x = %d.5 |
| p.y = 1.5 |
| scope +1 |
| line 3 |
| val.x = %d |
| val.y = 1 |
| line 4 |
| [main].result.x = 0 |
| [main].result.y = 1 |
| [main].result.z = 0 |
| [main].result.w = 1 |
| scope -1 |
| exit half4 main(float2 p) |
| )", center, center); |
| REPORTER_ASSERT(r, dump == expectation, |
| "Trace output does not match expectation for %dx%d:\n%.*s\n", |
| imageSize, imageSize, (int)dump.size(), dump.data()); |
| } |
| } |
| |
| DEF_TEST(SkRuntimeEffectTracesAreUnoptimized, r) { |
| TestEffect effect(r, /*grContext=*/nullptr, /*graphite=*/nullptr); |
| |
| effect.build(R"( |
| int globalUnreferencedVar = 7; |
| half inlinableFunction() { |
| return 1; |
| } |
| half4 main(float2 p) { |
| if (true) { |
| int localUnreferencedVar = 7; |
| } |
| return inlinableFunction().xxxx; |
| } |
| )"); |
| std::string dump = effect.trace({1, 1}); |
| constexpr char kExpectation[] = R"($0 = globalUnreferencedVar (int, L2) |
| $1 = [main].result (float4 : slot 1/4, L6) |
| $2 = [main].result (float4 : slot 2/4, L6) |
| $3 = [main].result (float4 : slot 3/4, L6) |
| $4 = [main].result (float4 : slot 4/4, L6) |
| $5 = p (float2 : slot 1/2, L6) |
| $6 = p (float2 : slot 2/2, L6) |
| $7 = localUnreferencedVar (int, L8) |
| $8 = [inlinableFunction].result (float, L3) |
| F0 = half4 main(float2 p) |
| F1 = half inlinableFunction() |
| |
| globalUnreferencedVar = 7 |
| enter half4 main(float2 p) |
| p.x = 1.5 |
| p.y = 1.5 |
| scope +1 |
| line 7 |
| scope +1 |
| line 8 |
| localUnreferencedVar = 7 |
| scope -1 |
| line 10 |
| enter half inlinableFunction() |
| scope +1 |
| line 4 |
| [inlinableFunction].result = 1 |
| scope -1 |
| exit half inlinableFunction() |
| [main].result.x = 1 |
| [main].result.y = 1 |
| [main].result.z = 1 |
| [main].result.w = 1 |
| scope -1 |
| exit half4 main(float2 p) |
| )"; |
| REPORTER_ASSERT(r, dump == kExpectation, |
| "Trace output does not match expectation:\n%.*s\n", |
| (int)dump.size(), dump.data()); |
| } |
| |
| DEF_TEST(SkRuntimeEffectTraceCodeThatCannotBeUnoptimized, r) { |
| TestEffect effect(r, /*grContext=*/nullptr, /*graphite=*/nullptr); |
| |
| effect.build(R"( |
| half4 main(float2 p) { |
| int variableThatGetsOptimizedAway = 7; |
| if (true) { |
| return half4(1); |
| } |
| // This (unreachable) path doesn't return a value. |
| // Without optimization, SkSL thinks this code doesn't return a value on every path. |
| } |
| )"); |
| std::string dump = effect.trace({1, 1}); |
| constexpr char kExpectation[] = R"($0 = [main].result (float4 : slot 1/4, L2) |
| $1 = [main].result (float4 : slot 2/4, L2) |
| $2 = [main].result (float4 : slot 3/4, L2) |
| $3 = [main].result (float4 : slot 4/4, L2) |
| $4 = p (float2 : slot 1/2, L2) |
| $5 = p (float2 : slot 2/2, L2) |
| F0 = half4 main(float2 p) |
| |
| enter half4 main(float2 p) |
| p.x = 1.5 |
| p.y = 1.5 |
| scope +1 |
| scope +1 |
| line 5 |
| [main].result.x = 1 |
| [main].result.y = 1 |
| [main].result.z = 1 |
| [main].result.w = 1 |
| scope -1 |
| scope -1 |
| exit half4 main(float2 p) |
| )"; |
| REPORTER_ASSERT(r, dump == kExpectation, |
| "Trace output does not match expectation:\n%.*s\n", |
| (int)dump.size(), dump.data()); |
| } |
| |
| static void test_RuntimeEffect_Blenders(skiatest::Reporter* r, |
| GrRecordingContext* grContext, |
| const GraphiteInfo* graphite) { |
| TestBlend effect(r, grContext, graphite); |
| |
| using float2 = std::array<float, 2>; |
| using float4 = std::array<float, 4>; |
| using int4 = std::array<int, 4>; |
| |
| // Use of a simple uniform. (Draw twice with two values to ensure it's updated). |
| effect.build("uniform float4 gColor; half4 main(half4 s, half4 d) { return half4(gColor); }"); |
| effect.uniform("gColor") = float4{ 0.0f, 0.25f, 0.75f, 1.0f }; |
| effect.test(0xFFBF4000); |
| effect.uniform("gColor") = float4{ 1.0f, 0.0f, 0.0f, 0.498f }; |
| effect.test(0x7F0000FF); // We don't clamp here either |
| |
| // Same, with integer uniforms |
| effect.build("uniform int4 gColor;" |
| "half4 main(half4 s, half4 d) { return half4(gColor) / 255.0; }"); |
| effect.uniform("gColor") = int4{ 0x00, 0x40, 0xBF, 0xFF }; |
| effect.test(0xFFBF4000); |
| effect.uniform("gColor") = int4{ 0xFF, 0x00, 0x00, 0x7F }; |
| effect.test(0x7F0000FF); // We don't clamp here either |
| |
| // Verify that mutating the source and destination colors is allowed |
| effect.build("half4 main(half4 s, half4 d) { s += d; d += s; return half4(1); }"); |
| effect.test(0xFFFFFFFF); |
| |
| // Verify that we can write out the source color (ignoring the dest color) |
| // This is equivalent to the kSrc blend mode. |
| effect.build("half4 main(half4 s, half4 d) { return s; }"); |
| effect.test(0xFF888888); |
| |
| // Fill the destination with a variety of colors (using the RGBW shader) |
| SkPaint rgbwPaint; |
| rgbwPaint.setShader(make_RGBW_shader()); |
| rgbwPaint.setBlendMode(SkBlendMode::kSrc); |
| effect.surface()->getCanvas()->drawPaint(rgbwPaint); |
| |
| // Verify that we can read back the dest color exactly as-is (ignoring the source color) |
| // This is equivalent to the kDst blend mode. |
| effect.build("half4 main(half4 s, half4 d) { return d; }"); |
| effect.test({0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 0xFFFFFFFF}); |
| |
| // Verify that we can invert the destination color (including the alpha channel). |
| // The expected outputs are the exact inverse of the previous test. |
| effect.build("half4 main(half4 s, half4 d) { return half4(1) - d; }"); |
| effect.test({0x00FFFF00, 0x00FF00FF, 0x0000FFFF, 0x00000000}); |
| |
| // Verify that color values are clamped to 0 and 1. |
| effect.build("half4 main(half4 s, half4 d) { return half4(-1); }"); |
| effect.test(0x00000000); |
| effect.build("half4 main(half4 s, half4 d) { return half4(2); }"); |
| effect.test(0xFFFFFFFF); |
| |
| // |
| // Sampling children |
| // |
| |
| // Sampling a null shader/color filter should return the paint color. |
| effect.build("uniform shader child;" |
| "half4 main(half4 s, half4 d) { return child.eval(s.rg); }"); |
| effect.child("child") = nullptr; |
| effect.test(0xFF00FFFF, |
| [](SkCanvas*, SkPaint* paint) { paint->setColor4f({1.0f, 1.0f, 0.0f, 1.0f}); }); |
| |
| effect.build("uniform colorFilter child;" |
| "half4 main(half4 s, half4 d) { return child.eval(s); }"); |
| effect.child("child") = nullptr; |
| effect.test(0xFF00FFFF, |
| [](SkCanvas*, SkPaint* paint) { paint->setColor4f({1.0f, 1.0f, 0.0f, 1.0f}); }); |
| |
| // Sampling a null blender should do a src-over blend. Draw 50% black over RGBW to verify this. |
| effect.surface()->getCanvas()->drawPaint(rgbwPaint); |
| effect.build("uniform blender child;" |
| "half4 main(half4 s, half4 d) { return child.eval(s, d); }"); |
| effect.child("child") = nullptr; |
| effect.test({0xFF000080, 0xFF008000, 0xFF800000, 0xFF808080}, |
| [](SkCanvas*, SkPaint* paint) { paint->setColor4f({0.0f, 0.0f, 0.0f, 0.497f}); }); |
| |
| // Sampling a shader at various coordinates |
| effect.build("uniform shader child;" |
| "uniform half2 pos;" |
| "half4 main(half4 s, half4 d) { return child.eval(pos); }"); |
| effect.child("child") = make_RGBW_shader(); |
| effect.uniform("pos") = float2{0.5, 0.5}; |
| effect.test(0xFF0000FF); |
| |
| effect.uniform("pos") = float2{1.5, 0.5}; |
| effect.test(0xFF00FF00); |
| |
| effect.uniform("pos") = float2{0.5, 1.5}; |
| effect.test(0xFFFF0000); |
| |
| effect.uniform("pos") = float2{1.5, 1.5}; |
| effect.test(0xFFFFFFFF); |
| |
| // Sampling a color filter |
| effect.build("uniform colorFilter child;" |
| "half4 main(half4 s, half4 d) { return child.eval(half4(1)); }"); |
| effect.child("child") = SkColorFilters::Blend(0xFF012345, SkBlendMode::kSrc); |
| effect.test(0xFF452301); |
| |
| // Sampling a built-in blender |
| effect.surface()->getCanvas()->drawPaint(rgbwPaint); |
| effect.build("uniform blender child;" |
| "half4 main(half4 s, half4 d) { return child.eval(s, d); }"); |
| effect.child("child") = SkBlender::Mode(SkBlendMode::kPlus); |
| effect.test({0xFF4523FF, 0xFF45FF01, 0xFFFF2301, 0xFFFFFFFF}, |
| [](SkCanvas*, SkPaint* paint) { paint->setColor(0xFF012345); }); |
| |
| // Sampling a runtime-effect blender |
| effect.surface()->getCanvas()->drawPaint(rgbwPaint); |
| effect.build("uniform blender child;" |
| "half4 main(half4 s, half4 d) { return child.eval(s, d); }"); |
| effect.child("child") = SkBlenders::Arithmetic(0, 1, 1, 0, /*enforcePremul=*/false); |
| effect.test({0xFF4523FF, 0xFF45FF01, 0xFFFF2301, 0xFFFFFFFF}, |
| [](SkCanvas*, SkPaint* paint) { paint->setColor(0xFF012345); }); |
| } |
| |
| DEF_TEST(SkRuntimeEffect_Blender_CPU, r) { |
| test_RuntimeEffect_Blenders(r, /*grContext=*/nullptr, /*graphite=*/nullptr); |
| } |
| |
| DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(SkRuntimeEffect_Blender_GPU, |
| r, |
| ctxInfo, |
| CtsEnforcement::kApiLevel_T) { |
| test_RuntimeEffect_Blenders(r, ctxInfo.directContext(), /*graphite=*/nullptr); |
| } |
| |
| DEF_TEST(SkRuntimeShaderBuilderReuse, r) { |
| const char* kSource = R"( |
| uniform half x; |
| half4 main(float2 p) { return half4(x); } |
| )"; |
| |
| sk_sp<SkRuntimeEffect> effect = SkRuntimeEffect::MakeForShader(SkString(kSource)).effect; |
| REPORTER_ASSERT(r, effect); |
| |
| // Test passes if this sequence doesn't assert. skbug.com/10667 |
| SkRuntimeShaderBuilder b(std::move(effect)); |
| b.uniform("x") = 0.0f; |
| auto shader_0 = b.makeShader(); |
| |
| b.uniform("x") = 1.0f; |
| auto shader_1 = b.makeShader(); |
| } |
| |
| DEF_TEST(SkRuntimeBlendBuilderReuse, r) { |
| const char* kSource = R"( |
| uniform half x; |
| half4 main(half4 s, half4 d) { return half4(x); } |
| )"; |
| |
| sk_sp<SkRuntimeEffect> effect = SkRuntimeEffect::MakeForBlender(SkString(kSource)).effect; |
| REPORTER_ASSERT(r, effect); |
| |
| // We should be able to construct multiple SkBlenders in a row without asserting. |
| SkRuntimeBlendBuilder b(std::move(effect)); |
| for (float x = 0.0f; x <= 2.0f; x += 2.0f) { |
| b.uniform("x") = x; |
| sk_sp<SkBlender> blender = b.makeBlender(); |
| } |
| } |
| |
| DEF_TEST(SkRuntimeShaderBuilderSetUniforms, r) { |
| const char* kSource = R"( |
| uniform half x; |
| uniform vec2 offset; |
| half4 main(float2 p) { return half4(x); } |
| )"; |
| |
| sk_sp<SkRuntimeEffect> effect = SkRuntimeEffect::MakeForShader(SkString(kSource)).effect; |
| REPORTER_ASSERT(r, effect); |
| |
| SkRuntimeShaderBuilder b(std::move(effect)); |
| |
| // Test passes if this sequence doesn't assert. |
| float x = 1.0f; |
| REPORTER_ASSERT(r, b.uniform("x").set(&x, 1)); |
| |
| // add extra value to ensure that set doesn't try to use sizeof(array) |
| float origin[] = { 2.0f, 3.0f, 4.0f }; |
| REPORTER_ASSERT(r, b.uniform("offset").set<float>(origin, 2)); |
| |
| #ifndef SK_DEBUG |
| REPORTER_ASSERT(r, !b.uniform("offset").set<float>(origin, 1)); |
| REPORTER_ASSERT(r, !b.uniform("offset").set<float>(origin, 3)); |
| #endif |
| |
| auto shader = b.makeShader(); |
| } |
| |
| DEF_TEST(SkRuntimeEffectThreaded, r) { |
| // This tests that we can safely use SkRuntimeEffect::MakeForShader from more than one thread, |
| // and also that programs don't refer to shared structures owned by the compiler. |
| // skbug.com/10589 |
| static constexpr char kSource[] = "half4 main(float2 p) { return sk_FragCoord.xyxy; }"; |
| |
| std::thread threads[16]; |
| for (auto& thread : threads) { |
| thread = std::thread([r]() { |
| SkRuntimeEffect::Options options; |
| SkRuntimeEffectPriv::AllowPrivateAccess(&options); |
| auto [effect, error] = SkRuntimeEffect::MakeForShader(SkString(kSource), options); |
| REPORTER_ASSERT(r, effect); |
| }); |
| } |
| |
| for (auto& thread : threads) { |
| thread.join(); |
| } |
| } |
| |
| DEF_TEST(SkRuntimeEffectAllowsPrivateAccess, r) { |
| SkRuntimeEffect::Options defaultOptions; |
| SkRuntimeEffect::Options optionsWithAccess; |
| SkRuntimeEffectPriv::AllowPrivateAccess(&optionsWithAccess); |
| |
| // Confirm that shaders can only access $private_functions when private access is allowed. |
| { |
| static constexpr char kShader[] = |
| "half4 main(float2 p) { return $hsl_to_rgb(p.xxx, p.y); }"; |
| SkRuntimeEffect::Result normal = |
| SkRuntimeEffect::MakeForShader(SkString(kShader), defaultOptions); |
| REPORTER_ASSERT(r, !normal.effect); |
| SkRuntimeEffect::Result privileged = |
| SkRuntimeEffect::MakeForShader(SkString(kShader), optionsWithAccess); |
| REPORTER_ASSERT(r, privileged.effect, "%s", privileged.errorText.c_str()); |
| } |
| |
| // Confirm that color filters can only access $private_functions when private access is allowed. |
| { |
| static constexpr char kColorFilter[] = |
| "half4 main(half4 c) { return $hsl_to_rgb(c.rgb, c.a); }"; |
| SkRuntimeEffect::Result normal = |
| SkRuntimeEffect::MakeForColorFilter(SkString(kColorFilter), defaultOptions); |
| REPORTER_ASSERT(r, !normal.effect); |
| SkRuntimeEffect::Result privileged = |
| SkRuntimeEffect::MakeForColorFilter(SkString(kColorFilter), optionsWithAccess); |
| REPORTER_ASSERT(r, privileged.effect, "%s", privileged.errorText.c_str()); |
| } |
| |
| // Confirm that blenders can only access $private_functions when private access is allowed. |
| { |
| static constexpr char kBlender[] = |
| "half4 main(half4 s, half4 d) { return $hsl_to_rgb(s.rgb, d.a); }"; |
| SkRuntimeEffect::Result normal = |
| SkRuntimeEffect::MakeForBlender(SkString(kBlender), defaultOptions); |
| REPORTER_ASSERT(r, !normal.effect); |
| SkRuntimeEffect::Result privileged = |
| SkRuntimeEffect::MakeForBlender(SkString(kBlender), optionsWithAccess); |
| REPORTER_ASSERT(r, privileged.effect, "%s", privileged.errorText.c_str()); |
| } |
| } |
| |
| DEF_TEST(SkRuntimeColorFilterSingleColor, r) { |
| // Test runtime colorfilters support filterColor4f(). |
| auto [effect, err] = |
| SkRuntimeEffect::MakeForColorFilter(SkString{"half4 main(half4 c) { return c*c; }"}); |
| REPORTER_ASSERT(r, effect); |
| REPORTER_ASSERT(r, err.isEmpty()); |
| |
| sk_sp<SkColorFilter> cf = effect->makeColorFilter(SkData::MakeEmpty()); |
| REPORTER_ASSERT(r, cf); |
| |
| SkColor4f c = cf->filterColor4f({0.25, 0.5, 0.75, 1.0}, |
| sk_srgb_singleton(), sk_srgb_singleton()); |
| REPORTER_ASSERT(r, c.fR == 0.0625f); |
| REPORTER_ASSERT(r, c.fG == 0.25f); |
| REPORTER_ASSERT(r, c.fB == 0.5625f); |
| REPORTER_ASSERT(r, c.fA == 1.0f); |
| } |
| |
| static void test_RuntimeEffectStructNameReuse(skiatest::Reporter* r, GrRecordingContext* rContext) { |
| // Test that two different runtime effects can reuse struct names in a single paint operation |
| auto [childEffect, err] = SkRuntimeEffect::MakeForShader(SkString( |
| "uniform shader paint;" |
| "struct S { half4 rgba; };" |
| "void process(inout S s) { s.rgba.rgb *= 0.5; }" |
| "half4 main(float2 p) { S s; s.rgba = paint.eval(p); process(s); return s.rgba; }" |
| )); |
| REPORTER_ASSERT(r, childEffect, "%s\n", err.c_str()); |
| sk_sp<SkShader> nullChild = nullptr; |
| sk_sp<SkShader> child = childEffect->makeShader(/*uniforms=*/nullptr, |
| &nullChild, |
| /*childCount=*/1); |
| |
| TestEffect effect(r, /*grContext=*/nullptr, /*graphite=*/nullptr); |
| effect.build( |
| "uniform shader child;" |
| "struct S { float2 coord; };" |
| "void process(inout S s) { s.coord = s.coord.yx; }" |
| "half4 main(float2 p) { S s; s.coord = p; process(s); return child.eval(s.coord); " |
| "}"); |
| effect.child("child") = child; |
| effect.test(0xFF00407F, [](SkCanvas*, SkPaint* paint) { |
| paint->setColor4f({0.99608f, 0.50196f, 0.0f, 1.0f}); |
| }); |
| } |
| |
| DEF_TEST(SkRuntimeStructNameReuse, r) { |
| test_RuntimeEffectStructNameReuse(r, nullptr); |
| } |
| |
| DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(SkRuntimeStructNameReuse_GPU, |
| r, |
| ctxInfo, |
| CtsEnforcement::kApiLevel_T) { |
| test_RuntimeEffectStructNameReuse(r, ctxInfo.directContext()); |
| } |
| |
| DEF_TEST(SkRuntimeColorFilterFlags, r) { |
| { // Here's a non-trivial filter that doesn't change alpha. |
| auto [effect, err] = SkRuntimeEffect::MakeForColorFilter(SkString{ |
| "half4 main(half4 color) { return color + half4(1,1,1,0); }"}); |
| REPORTER_ASSERT(r, effect && err.isEmpty()); |
| sk_sp<SkColorFilter> filter = effect->makeColorFilter(SkData::MakeEmpty()); |
| REPORTER_ASSERT(r, filter && filter->isAlphaUnchanged()); |
| } |
| |
| { // Here's one that definitely changes alpha. |
| auto [effect, err] = SkRuntimeEffect::MakeForColorFilter(SkString{ |
| "half4 main(half4 color) { return color + half4(0,0,0,4); }"}); |
| REPORTER_ASSERT(r, effect && err.isEmpty()); |
| sk_sp<SkColorFilter> filter = effect->makeColorFilter(SkData::MakeEmpty()); |
| REPORTER_ASSERT(r, filter && !filter->isAlphaUnchanged()); |
| } |
| } |
| |
| DEF_TEST(SkRuntimeShaderSampleCoords, r) { |
| // This test verifies that we detect calls to sample where the coords are the same as those |
| // passed to main. In those cases, it's safe to turn the "explicit" sampling into "passthrough" |
| // sampling. This optimization is implemented very conservatively. |
| // |
| // It also checks that we correctly set the "referencesSampleCoords" bit on the runtime effect |
| // FP, depending on how the coords parameter to main is used. |
| |
| auto test = [&](const char* src, bool expectExplicit, bool expectReferencesSampleCoords) { |
| auto [effect, err] = |
| SkRuntimeEffect::MakeForShader(SkStringPrintf("uniform shader child; %s", src)); |
| REPORTER_ASSERT(r, effect); |
| |
| auto child = GrFragmentProcessor::MakeColor({ 1, 1, 1, 1 }); |
| auto fp = GrSkSLFP::Make(effect.get(), "test_fp", /*inputFP=*/nullptr, |
| GrSkSLFP::OptFlags::kNone, "child", std::move(child)); |
| REPORTER_ASSERT(r, fp); |
| |
| REPORTER_ASSERT(r, fp->childProcessor(0)->sampleUsage().isExplicit() == expectExplicit); |
| REPORTER_ASSERT(r, fp->usesSampleCoords() == expectReferencesSampleCoords); |
| }; |
| |
| // Cases where our optimization is valid, and works: |
| |
| // Direct use of passed-in coords. Here, the only use of sample coords is for a sample call |
| // converted to passthrough, so referenceSampleCoords is *false*, despite appearing in main. |
| test("half4 main(float2 xy) { return child.eval(xy); }", false, false); |
| // Sample with passed-in coords, read (but don't write) sample coords elsewhere |
| test("half4 main(float2 xy) { return child.eval(xy) + sin(xy.x); }", false, true); |
| |
| // Cases where our optimization is not valid, and does not happen: |
| |
| // Sampling with values completely unrelated to passed-in coords |
| test("half4 main(float2 xy) { return child.eval(float2(0, 0)); }", true, false); |
| // Use of expression involving passed in coords |
| test("half4 main(float2 xy) { return child.eval(xy * 0.5); }", true, true); |
| // Use of coords after modification |
| test("half4 main(float2 xy) { xy *= 2; return child.eval(xy); }", true, true); |
| // Use of coords after modification via out-param call |
| test("void adjust(inout float2 xy) { xy *= 2; }" |
| "half4 main(float2 xy) { adjust(xy); return child.eval(xy); }", true, true); |
| |
| // There should (must) not be any false-positive cases. There are false-negatives. |
| // In all of these cases, our optimization would be valid, but does not happen: |
| |
| // Direct use of passed-in coords, modified after use |
| test("half4 main(float2 xy) { half4 c = child.eval(xy); xy *= 2; return c; }", true, true); |
| // Passed-in coords copied to a temp variable |
| test("half4 main(float2 xy) { float2 p = xy; return child.eval(p); }", true, true); |
| // Use of coords passed to helper function |
| test("half4 helper(float2 xy) { return child.eval(xy); }" |
| "half4 main(float2 xy) { return helper(xy); }", true, true); |
| } |
| |
| DEF_TEST(SkRuntimeShaderIsOpaque, r) { |
| // This test verifies that we detect certain simple patterns in runtime shaders, and can deduce |
| // (via code in SkSL::Analysis::ReturnsOpaqueColor) that the resulting shader is always opaque. |
| // That logic is conservative, and the tests below reflect this. |
| |
| auto test = [&](const char* body, bool expectOpaque) { |
| auto [effect, err] = SkRuntimeEffect::MakeForShader(SkStringPrintf(R"( |
| uniform shader cOnes; |
| uniform shader cZeros; |
| uniform float4 uOnes; |
| uniform float4 uZeros; |
| half4 main(float2 xy) { |
| %s |
| })", body)); |
| REPORTER_ASSERT(r, effect); |
| |
| auto cOnes = SkShaders::Color(SK_ColorWHITE); |
| auto cZeros = SkShaders::Color(SK_ColorTRANSPARENT); |
| SkASSERT(cOnes->isOpaque()); |
| SkASSERT(!cZeros->isOpaque()); |
| |
| SkRuntimeShaderBuilder builder(effect); |
| builder.child("cOnes") = std::move(cOnes); |
| builder.child("cZeros") = std::move(cZeros); |
| builder.uniform("uOnes") = SkColors::kWhite; |
| builder.uniform("uZeros") = SkColors::kTransparent; |
| |
| auto shader = builder.makeShader(); |
| REPORTER_ASSERT(r, shader->isOpaque() == expectOpaque); |
| }; |
| |
| // Cases where our optimization is valid, and works: |
| |
| // Returning opaque literals |
| test("return half4(1);", true); |
| test("return half4(0, 1, 0, 1);", true); |
| test("return half4(0, 0, 0, 1);", true); |
| |
| // Simple expressions involving uniforms |
| test("return uZeros.rgb1;", true); |
| test("return uZeros.bgra.rgb1;", true); |
| test("return half4(uZeros.rgb, 1);", true); |
| |
| // Simple expressions involving child.eval |
| test("return cZeros.eval(xy).rgb1;", true); |
| test("return cZeros.eval(xy).bgra.rgb1;", true); |
| test("return half4(cZeros.eval(xy).rgb, 1);", true); |
| |
| // Multiple returns |
| test("if (xy.x < 100) { return uZeros.rgb1; } else { return cZeros.eval(xy).rgb1; }", true); |
| |
| // More expression cases: |
| test("return (cZeros.eval(xy) * uZeros).rgb1;", true); |
| test("return half4(1, 1, 1, 0.5 + 0.5);", true); |
| |
| // Constant variable propagation |
| test("const half4 kWhite = half4(1); return kWhite;", true); |
| |
| // Cases where our optimization is not valid, and does not happen: |
| |
| // Returning non-opaque literals |
| test("return half4(0);", false); |
| test("return half4(1, 1, 1, 0);", false); |
| |
| // Returning non-opaque uniforms or children |
| test("return uZeros;", false); |
| test("return cZeros.eval(xy);", false); |
| |
| // Multiple returns |
| test("if (xy.x < 100) { return uZeros; } else { return cZeros.eval(xy).rgb1; }", false); |
| test("if (xy.x < 100) { return uZeros.rgb1; } else { return cZeros.eval(xy); }", false); |
| |
| // There should (must) not be any false-positive cases. There are false-negatives. |
| // In these cases, our optimization would be valid, but does not happen: |
| |
| // More complex expressions that can't be simplified |
| test("return xy.x < 100 ? uZeros.rgb1 : cZeros.eval(xy).rgb1;", false); |
| |
| // Finally, there are cases that are conditional on the uniforms and children. These *could* |
| // determine dynamically if the uniform and/or child being referenced is opaque, and use that |
| // information. Today, we don't do this, so we pessimistically assume they're transparent: |
| test("return uOnes;", false); |
| test("return cOnes.eval(xy);", false); |
| } |
| |
| DEF_GANESH_TEST_FOR_ALL_CONTEXTS(GrSkSLFP_Specialized, r, ctxInfo, CtsEnforcement::kApiLevel_T) { |
| struct FpAndKey { |
| std::unique_ptr<GrFragmentProcessor> fp; |
| SkTArray<uint32_t, true> key; |
| }; |
| |
| // Constant color, but with an 'specialize' option that decides if the color is inserted in the |
| // SkSL as a literal, or left as a uniform |
| auto make_color_fp = [&](SkPMColor4f color, bool specialize) { |
| static const SkRuntimeEffect* effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForShader, |
| "uniform half4 color;" |
| "half4 main(float2 xy) { return color; }" |
| ); |
| FpAndKey result; |
| result.fp = GrSkSLFP::Make(effect, "color_fp", /*inputFP=*/nullptr, |
| GrSkSLFP::OptFlags::kNone, |
| "color", GrSkSLFP::SpecializeIf(specialize, color)); |
| skgpu::KeyBuilder builder(&result.key); |
| result.fp->addToKey(*ctxInfo.directContext()->priv().caps()->shaderCaps(), &builder); |
| builder.flush(); |
| return result; |
| }; |
| |
| FpAndKey uRed = make_color_fp({1, 0, 0, 1}, false), |
| uGreen = make_color_fp({0, 1, 0, 1}, false), |
| sRed = make_color_fp({1, 0, 0, 1}, true), |
| sGreen = make_color_fp({0, 1, 0, 1}, true); |
| |
| // uRed and uGreen should have the same key - they just have different uniforms |
| SkASSERT(uRed.key == uGreen.key); |
| // sRed and sGreen should have keys that are different from the uniform case, and each other |
| SkASSERT(sRed.key != uRed.key); |
| SkASSERT(sGreen.key != uRed.key); |
| SkASSERT(sRed.key != sGreen.key); |
| } |
| |
| DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(GrSkSLFP_UniformArray, |
| r, |
| ctxInfo, |
| CtsEnforcement::kApiLevel_T) { |
| // Make a fill-context to draw into. |
| GrDirectContext* directContext = ctxInfo.directContext(); |
| SkImageInfo info = SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kPremul_SkAlphaType); |
| std::unique_ptr<skgpu::v1::SurfaceFillContext> testCtx = |
| directContext->priv().makeSFC(info, /*label=*/{}, SkBackingFit::kExact); |
| |
| // Make an effect that takes a uniform array as input. |
| static constexpr std::array<float, 4> kRed {1.0f, 0.0f, 0.0f, 1.0f}; |
| static constexpr std::array<float, 4> kGreen{0.0f, 1.0f, 0.0f, 1.0f}; |
| static constexpr std::array<float, 4> kBlue {0.0f, 0.0f, 1.0f, 1.0f}; |
| static constexpr std::array<float, 4> kGray {0.499f, 0.499f, 0.499f, 1.0f}; |
| |
| for (const auto& colorArray : {kRed, kGreen, kBlue, kGray}) { |
| // Compile our runtime effect. |
| static const SkRuntimeEffect* effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForShader, |
| "uniform half color[4];" |
| "half4 main(float2 xy) { return half4(color[0], color[1], color[2], color[3]); }" |
| ); |
| // Render our shader into the fill-context with our various input colors. |
| testCtx->fillWithFP(GrSkSLFP::Make(effect, "test_fp", /*inputFP=*/nullptr, |
| GrSkSLFP::OptFlags::kNone, |
| "color", SkSpan(colorArray))); |
| // Read our color back and ensure it matches. |
| GrColor actual; |
| GrPixmap pixmap(info, &actual, sizeof(GrColor)); |
| if (!testCtx->readPixels(directContext, pixmap, /*srcPt=*/{0, 0})) { |
| REPORT_FAILURE(r, "readPixels", SkString("readPixels failed")); |
| break; |
| } |
| if (actual != GrColorPackRGBA(255 * colorArray[0], 255 * colorArray[1], |
| 255 * colorArray[2], 255 * colorArray[3])) { |
| REPORT_FAILURE(r, "Uniform array didn't match expectations", |
| SkStringPrintf("\n" |
| "Expected: [ %g %g %g %g ]\n" |
| "Got : [ %08x ]\n", |
| colorArray[0], colorArray[1], |
| colorArray[2], colorArray[3], |
| actual)); |
| break; |
| } |
| } |
| } |