Remove the last use of fragmentProcessor field access in .fp files

This is a complex feature that was propping up this one use-case. After
this CL, it can be removed.

Change-Id: Ia391565daddeba46adfb325980d10ad653e269c8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/375019
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>

src/gpu/gradients/GrClampedGradientEffect.fp

@@ -23,6 +23,7 @@ layout(ctype=SkPMColor4f, tracked) in uniform half4 rightBorderColor; // t > 1.0
 layout(key) in bool makePremul;
 // Trust the creator that this matches the color spec of the gradient
 in bool colorsAreOpaque;
+layout(key) in bool layoutPreservesOpacity;
 
 half4 main() {
     half4 t = sample(gradLayout);
@@ -31,7 +32,7 @@ half4 main() {
     // If t.x is below 0, use the left border color without invoking the child processor. If any t.x
     // is above 1, use the right border color. Otherwise, t is in the [0, 1] range assumed by the
     // colorizer FP, so delegate to the child processor.
-    if (!gradLayout.preservesOpaqueInput && t.y < 0) {
+    if (!layoutPreservesOpacity && t.y < 0) {
         // layout has rejected this fragment (rely on sksl to remove this branch if the layout FP
         // preserves opacity is false)
         outColor = half4(0);
@@ -56,6 +57,21 @@ half4 main() {
 // into account the opacity of the border colors).
 @optimizationFlags {
     kCompatibleWithCoverageAsAlpha_OptimizationFlag |
-    (colorsAreOpaque && gradLayout->preservesOpaqueInput() ? kPreservesOpaqueInput_OptimizationFlag
+    (colorsAreOpaque && layoutPreservesOpacity ? kPreservesOpaqueInput_OptimizationFlag
                                                : kNone_OptimizationFlags)
 }
+
+@make{
+    static std::unique_ptr<GrFragmentProcessor> Make(
+            std::unique_ptr<GrFragmentProcessor> colorizer,
+            std::unique_ptr<GrFragmentProcessor> gradLayout,
+            SkPMColor4f leftBorderColor,
+            SkPMColor4f rightBorderColor,
+            bool makePremul,
+            bool colorsAreOpaque) {
+        bool layoutPreservesOpacity = gradLayout->preservesOpaqueInput();
+        return std::unique_ptr<GrFragmentProcessor>(new GrClampedGradientEffect(
+                std::move(colorizer), std::move(gradLayout), leftBorderColor, rightBorderColor,
+                makePremul, colorsAreOpaque, layoutPreservesOpacity));
+    }
+}

src/gpu/gradients/GrTiledGradientEffect.fp

@@ -14,11 +14,12 @@ layout(key) in bool mirror;
 layout(key) in bool makePremul;
 // Trust the creator that this matches the color spec of the gradient
 in bool colorsAreOpaque;
+layout(key) in bool layoutPreservesOpacity;
 
 half4 main() {
     half4 t = sample(gradLayout);
 
-    if (!gradLayout.preservesOpaqueInput && t.y < 0) {
+    if (!layoutPreservesOpacity && t.y < 0) {
         // layout has rejected this fragment (rely on sksl to remove this branch if the layout FP
         // preserves opacity is false)
         return half4(0);
@@ -54,6 +55,20 @@ half4 main() {
 // but otherwise respect the provided color opacity state.
 @optimizationFlags {
     kCompatibleWithCoverageAsAlpha_OptimizationFlag |
-    (colorsAreOpaque && gradLayout->preservesOpaqueInput() ? kPreservesOpaqueInput_OptimizationFlag
+    (colorsAreOpaque && layoutPreservesOpacity ? kPreservesOpaqueInput_OptimizationFlag
                                                : kNone_OptimizationFlags)
 }
+
+@make{
+    static std::unique_ptr<GrFragmentProcessor> Make(
+            std::unique_ptr<GrFragmentProcessor> colorizer,
+            std::unique_ptr<GrFragmentProcessor> gradLayout,
+            bool mirror,
+            bool makePremul,
+            bool colorsAreOpaque) {
+        bool layoutPreservesOpacity = gradLayout->preservesOpaqueInput();
+        return std::unique_ptr<GrFragmentProcessor>(new GrTiledGradientEffect(
+                std::move(colorizer), std::move(gradLayout), mirror, makePremul, colorsAreOpaque,
+                layoutPreservesOpacity));
+    }
+}

src/gpu/gradients/generated/GrClampedGradientEffect.cpp

@@ -32,6 +32,8 @@ public:
         (void)makePremul;
         auto colorsAreOpaque = _outer.colorsAreOpaque;
         (void)colorsAreOpaque;
+        auto layoutPreservesOpacity = _outer.layoutPreservesOpacity;
+        (void)layoutPreservesOpacity;
         leftBorderColorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag,
                                                               kHalf4_GrSLType, "leftBorderColor");
         rightBorderColorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag,
@@ -47,8 +49,7 @@ if (!%s && t.y < 0.0) {
 } else if (t.x > 1.0) {
     outColor = %s;
 } else {)SkSL",
-                _sample0.c_str(),
+                _sample0.c_str(), (_outer.layoutPreservesOpacity ? "true" : "false"),
-                (_outer.childProcessor(1)->preservesOpaqueInput() ? "true" : "false"),
                 args.fUniformHandler->getUniformCStr(leftBorderColorVar),
                 args.fUniformHandler->getUniformCStr(rightBorderColorVar));
         SkString _coords1("float2(half2(t.x, 0.0))");
@@ -93,6 +94,7 @@ std::unique_ptr<GrGLSLFragmentProcessor> GrClampedGradientEffect::onMakeProgramI
 void GrClampedGradientEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
                                                     GrProcessorKeyBuilder* b) const {
     b->add32((uint32_t)makePremul);
+    b->add32((uint32_t)layoutPreservesOpacity);
 }
 bool GrClampedGradientEffect::onIsEqual(const GrFragmentProcessor& other) const {
     const GrClampedGradientEffect& that = other.cast<GrClampedGradientEffect>();
@@ -101,6 +103,7 @@ bool GrClampedGradientEffect::onIsEqual(const GrFragmentProcessor& other) const
     if (rightBorderColor != that.rightBorderColor) return false;
     if (makePremul != that.makePremul) return false;
     if (colorsAreOpaque != that.colorsAreOpaque) return false;
+    if (layoutPreservesOpacity != that.layoutPreservesOpacity) return false;
     return true;
 }
 GrClampedGradientEffect::GrClampedGradientEffect(const GrClampedGradientEffect& src)
@@ -108,7 +111,8 @@ GrClampedGradientEffect::GrClampedGradientEffect(const GrClampedGradientEffect&
         , leftBorderColor(src.leftBorderColor)
         , rightBorderColor(src.rightBorderColor)
         , makePremul(src.makePremul)
-        , colorsAreOpaque(src.colorsAreOpaque) {
+        , colorsAreOpaque(src.colorsAreOpaque)
+        , layoutPreservesOpacity(src.layoutPreservesOpacity) {
     this->cloneAndRegisterAllChildProcessors(src);
 }
 std::unique_ptr<GrFragmentProcessor> GrClampedGradientEffect::clone() const {
@@ -118,9 +122,10 @@ std::unique_ptr<GrFragmentProcessor> GrClampedGradientEffect::clone() const {
 SkString GrClampedGradientEffect::onDumpInfo() const {
     return SkStringPrintf(
             "(leftBorderColor=half4(%f, %f, %f, %f), rightBorderColor=half4(%f, %f, %f, %f), "
-            "makePremul=%s, colorsAreOpaque=%s)",
+            "makePremul=%s, colorsAreOpaque=%s, layoutPreservesOpacity=%s)",
             leftBorderColor.fR, leftBorderColor.fG, leftBorderColor.fB, leftBorderColor.fA,
             rightBorderColor.fR, rightBorderColor.fG, rightBorderColor.fB, rightBorderColor.fA,
-            (makePremul ? "true" : "false"), (colorsAreOpaque ? "true" : "false"));
+            (makePremul ? "true" : "false"), (colorsAreOpaque ? "true" : "false"),
+            (layoutPreservesOpacity ? "true" : "false"));
 }
 #endif

src/gpu/gradients/generated/GrClampedGradientEffect.h

@@ -25,9 +25,10 @@ public:
             SkPMColor4f rightBorderColor,
             bool makePremul,
             bool colorsAreOpaque) {
+        bool layoutPreservesOpacity = gradLayout->preservesOpaqueInput();
         return std::unique_ptr<GrFragmentProcessor>(new GrClampedGradientEffect(
                 std::move(colorizer), std::move(gradLayout), leftBorderColor, rightBorderColor,
-                makePremul, colorsAreOpaque));
+                makePremul, colorsAreOpaque, layoutPreservesOpacity));
     }
     GrClampedGradientEffect(const GrClampedGradientEffect& src);
     std::unique_ptr<GrFragmentProcessor> clone() const override;
@@ -36,6 +37,7 @@ public:
     SkPMColor4f rightBorderColor;
     bool makePremul;
     bool colorsAreOpaque;
+    bool layoutPreservesOpacity;
 
 private:
     GrClampedGradientEffect(std::unique_ptr<GrFragmentProcessor> colorizer,
@@ -43,16 +45,18 @@ private:
                             SkPMColor4f leftBorderColor,
                             SkPMColor4f rightBorderColor,
                             bool makePremul,
-                            bool colorsAreOpaque)
+                            bool colorsAreOpaque,
+                            bool layoutPreservesOpacity)
             : INHERITED(kGrClampedGradientEffect_ClassID,
                         (OptimizationFlags)kCompatibleWithCoverageAsAlpha_OptimizationFlag |
-                                (colorsAreOpaque && gradLayout->preservesOpaqueInput()
+                                (colorsAreOpaque && layoutPreservesOpacity
                                          ? kPreservesOpaqueInput_OptimizationFlag
                                          : kNone_OptimizationFlags))
             , leftBorderColor(leftBorderColor)
             , rightBorderColor(rightBorderColor)
             , makePremul(makePremul)
-            , colorsAreOpaque(colorsAreOpaque) {
+            , colorsAreOpaque(colorsAreOpaque)
+            , layoutPreservesOpacity(layoutPreservesOpacity) {
         this->registerChild(std::move(colorizer), SkSL::SampleUsage::Explicit());
         this->registerChild(std::move(gradLayout), SkSL::SampleUsage::PassThrough());
     }

src/gpu/gradients/generated/GrTiledGradientEffect.cpp

@@ -30,6 +30,8 @@ public:
         (void)makePremul;
         auto colorsAreOpaque = _outer.colorsAreOpaque;
         (void)colorsAreOpaque;
+        auto layoutPreservesOpacity = _outer.layoutPreservesOpacity;
+        (void)layoutPreservesOpacity;
         SkString _sample0 = this->invokeChild(1, args);
         fragBuilder->codeAppendf(
                 R"SkSL(half4 t = %s;
@@ -47,8 +49,7 @@ if (!%s && t.y < 0.0) {
         t.x = fract(t.x);
     }
     @if (!%s) {)SkSL",
-                _sample0.c_str(),
+                _sample0.c_str(), (_outer.layoutPreservesOpacity ? "true" : "false"),
-                (_outer.childProcessor(1)->preservesOpaqueInput() ? "true" : "false"),
                 (_outer.mirror ? "true" : "false"), (_outer.makePremul ? "true" : "false"));
         SkString _coords1("float2(half2(t.x, 0.0))");
         SkString _sample1 = this->invokeChild(0, args, _coords1.c_str());
@@ -80,6 +81,7 @@ void GrTiledGradientEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
                                                   GrProcessorKeyBuilder* b) const {
     b->add32((uint32_t)mirror);
     b->add32((uint32_t)makePremul);
+    b->add32((uint32_t)layoutPreservesOpacity);
 }
 bool GrTiledGradientEffect::onIsEqual(const GrFragmentProcessor& other) const {
     const GrTiledGradientEffect& that = other.cast<GrTiledGradientEffect>();
@@ -87,13 +89,15 @@ bool GrTiledGradientEffect::onIsEqual(const GrFragmentProcessor& other) const {
     if (mirror != that.mirror) return false;
     if (makePremul != that.makePremul) return false;
     if (colorsAreOpaque != that.colorsAreOpaque) return false;
+    if (layoutPreservesOpacity != that.layoutPreservesOpacity) return false;
     return true;
 }
 GrTiledGradientEffect::GrTiledGradientEffect(const GrTiledGradientEffect& src)
         : INHERITED(kGrTiledGradientEffect_ClassID, src.optimizationFlags())
         , mirror(src.mirror)
         , makePremul(src.makePremul)
-        , colorsAreOpaque(src.colorsAreOpaque) {
+        , colorsAreOpaque(src.colorsAreOpaque)
+        , layoutPreservesOpacity(src.layoutPreservesOpacity) {
     this->cloneAndRegisterAllChildProcessors(src);
 }
 std::unique_ptr<GrFragmentProcessor> GrTiledGradientEffect::clone() const {
@@ -101,8 +105,9 @@ std::unique_ptr<GrFragmentProcessor> GrTiledGradientEffect::clone() const {
 }
 #if GR_TEST_UTILS
 SkString GrTiledGradientEffect::onDumpInfo() const {
-    return SkStringPrintf("(mirror=%s, makePremul=%s, colorsAreOpaque=%s)",
+    return SkStringPrintf(
+            "(mirror=%s, makePremul=%s, colorsAreOpaque=%s, layoutPreservesOpacity=%s)",
             (mirror ? "true" : "false"), (makePremul ? "true" : "false"),
-                          (colorsAreOpaque ? "true" : "false"));
+            (colorsAreOpaque ? "true" : "false"), (layoutPreservesOpacity ? "true" : "false"));
 }
 #endif

src/gpu/gradients/generated/GrTiledGradientEffect.h

@@ -24,8 +24,10 @@ public:
             bool mirror,
             bool makePremul,
             bool colorsAreOpaque) {
-        return std::unique_ptr<GrFragmentProcessor>(new GrTiledGradientEffect(
+        bool layoutPreservesOpacity = gradLayout->preservesOpaqueInput();
-                std::move(colorizer), std::move(gradLayout), mirror, makePremul, colorsAreOpaque));
+        return std::unique_ptr<GrFragmentProcessor>(
+                new GrTiledGradientEffect(std::move(colorizer), std::move(gradLayout), mirror,
+                                          makePremul, colorsAreOpaque, layoutPreservesOpacity));
     }
     GrTiledGradientEffect(const GrTiledGradientEffect& src);
     std::unique_ptr<GrFragmentProcessor> clone() const override;
@@ -33,21 +35,24 @@ public:
     bool mirror;
     bool makePremul;
     bool colorsAreOpaque;
+    bool layoutPreservesOpacity;
 
 private:
     GrTiledGradientEffect(std::unique_ptr<GrFragmentProcessor> colorizer,
                           std::unique_ptr<GrFragmentProcessor> gradLayout,
                           bool mirror,
                           bool makePremul,
-                          bool colorsAreOpaque)
+                          bool colorsAreOpaque,
+                          bool layoutPreservesOpacity)
             : INHERITED(kGrTiledGradientEffect_ClassID,
                         (OptimizationFlags)kCompatibleWithCoverageAsAlpha_OptimizationFlag |
-                                (colorsAreOpaque && gradLayout->preservesOpaqueInput()
+                                (colorsAreOpaque && layoutPreservesOpacity
                                          ? kPreservesOpaqueInput_OptimizationFlag
                                          : kNone_OptimizationFlags))
             , mirror(mirror)
             , makePremul(makePremul)
-            , colorsAreOpaque(colorsAreOpaque) {
+            , colorsAreOpaque(colorsAreOpaque)
+            , layoutPreservesOpacity(layoutPreservesOpacity) {
         this->registerChild(std::move(colorizer), SkSL::SampleUsage::Explicit());
         this->registerChild(std::move(gradLayout), SkSL::SampleUsage::PassThrough());
     }