converted CircleEffect to SkSL
Bug: skia:
Change-Id: I93d117c22ae2b374294f6a5e961c497ac2c92b09
Reviewed-on: https://skia-review.googlesource.com/23301
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
diff --git a/src/gpu/effects/GrCircleEffect.cpp b/src/gpu/effects/GrCircleEffect.cpp
new file mode 100644
index 0000000..acd2a9b
--- /dev/null
+++ b/src/gpu/effects/GrCircleEffect.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/*
+ * This file was autogenerated from GrCircleEffect.fp; do not modify.
+ */
+#include "GrCircleEffect.h"
+#if SK_SUPPORT_GPU
+#include "glsl/GrGLSLColorSpaceXformHelper.h"
+#include "glsl/GrGLSLFragmentProcessor.h"
+#include "glsl/GrGLSLFragmentShaderBuilder.h"
+#include "glsl/GrGLSLProgramBuilder.h"
+#include "SkSLCPP.h"
+#include "SkSLUtil.h"
+class GrGLSLCircleEffect : public GrGLSLFragmentProcessor {
+public:
+ GrGLSLCircleEffect() {}
+ void emitCode(EmitArgs& args) override {
+ GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
+ const GrCircleEffect& _outer = args.fFp.cast<GrCircleEffect>();
+ (void) _outer;
+prevRadius = -1.0;
+ fCircleVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kVec4f_GrSLType, kDefault_GrSLPrecision, "circle");
+ fragBuilder->codeAppendf("vec2 prevCenter;\nfloat prevRadius = %f;\nfloat d;\nif (%d == 2 || %d == 3) {\n d = (length((%s.xy - sk_FragCoord.xy) * %s.w) - 1.0) * %s.z;\n} else {\n d = (1.0 - length((%s.xy - sk_FragCoord.xy) * %s.w)) * %s.z;\n}\nif ((%d == 1 || %d == 3) || %d == 4) {\n d = clamp(d, 0.0, 1.0);\n} else {\n d = d > 0.5 ? 1.0 : 0.0;\n}\n%s = %s * d;\n", prevRadius, _outer.edgeType(), _outer.edgeType(), args.fUniformHandler->getUniformCStr(fCircleVar), args.fUniformHandler->getUniformCStr(fCircleVar), args.fUniformHandler->getUniformCStr(fCircleVar), args.fUniformHandler->getUniformCStr(fCircleVar), args.fUniformHandler->getUniformCStr(fCircleVar), args.fUniformHandler->getUniformCStr(fCircleVar), _outer.edgeType(), _outer.edgeType(), _outer.edgeType(), args.fOutputColor, args.fInputColor ? args.fInputColor : "vec4(1)");
+ }
+private:
+ void onSetData(const GrGLSLProgramDataManager& pdman, const GrFragmentProcessor& _proc) override {
+ const GrCircleEffect& _outer = _proc.cast<GrCircleEffect>();
+ auto edgeType = _outer.edgeType();
+ (void) edgeType;
+ auto center = _outer.center();
+ (void) center;
+ auto radius = _outer.radius();
+ (void) radius;
+ UniformHandle& circle = fCircleVar;
+ (void) circle;
+
+ if (radius != prevRadius || center != prevCenter) {
+ SkScalar effectiveRadius = radius;
+ if (GrProcessorEdgeTypeIsInverseFill((GrPrimitiveEdgeType) edgeType)) {
+ effectiveRadius -= 0.5f;
+ } else {
+ effectiveRadius += 0.5f;
+ }
+ pdman.set4f(circle, center.fX, center.fY, effectiveRadius,
+ SkScalarInvert(effectiveRadius));
+ prevCenter = center;
+ prevRadius = radius;
+ }
+ }
+SkPoint prevCenter;
+float prevRadius;
+ UniformHandle fCircleVar;
+};
+GrGLSLFragmentProcessor* GrCircleEffect::onCreateGLSLInstance() const {
+ return new GrGLSLCircleEffect();
+}
+void GrCircleEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const {
+ b->add32(fEdgeType);
+}
+bool GrCircleEffect::onIsEqual(const GrFragmentProcessor& other) const {
+ const GrCircleEffect& that = other.cast<GrCircleEffect>();
+ (void) that;
+ if (fEdgeType != that.fEdgeType) return false;
+ if (fCenter != that.fCenter) return false;
+ if (fRadius != that.fRadius) return false;
+ return true;
+}
+GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrCircleEffect);
+#if GR_TEST_UTILS
+sk_sp<GrFragmentProcessor> GrCircleEffect::TestCreate(GrProcessorTestData* testData) {
+
+ SkPoint center;
+ center.fX = testData->fRandom->nextRangeScalar(0.f, 1000.f);
+ center.fY = testData->fRandom->nextRangeScalar(0.f, 1000.f);
+ SkScalar radius = testData->fRandom->nextRangeF(0.f, 1000.f);
+ GrPrimitiveEdgeType et;
+ do {
+ et = (GrPrimitiveEdgeType) testData->fRandom->nextULessThan(kGrProcessorEdgeTypeCnt);
+ } while (kHairlineAA_GrProcessorEdgeType == et);
+ return GrCircleEffect::Make(et, center, radius);
+}
+#endif
+#endif