commit c6dce5ac8701259b67706f7fd1b0b28df26af14a
author Ethan Nicholas <ethannicholas@google.com> Wed Jul 24 16:51:36 2019 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Thu Jul 25 14:48:47 2019 +0000
tree 494781f187ffc4b9e6d7d6d0749c1cdfba5d4102
parent b380e71cfe04d2253b5b273c40fcd1bf2b363ea8

Child fragment processors are now written as separate functions

Bug: skia:
Change-Id: Icbf8f542637a874b3e2d3513d932b39728fa5e77
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/229385
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp

diff --git a/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp b/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
index 2b6894a..986ad37 100644
--- a/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
@@ -156,6 +156,26 @@
     this->codeAppendf("}");
 }
 
+SkString GrGLSLFPFragmentBuilder::writeProcessorFunction(GrGLSLFragmentProcessor* fp,
+                                                         GrGLSLFragmentProcessor::EmitArgs& args) {
+    this->onBeforeChildProcEmitCode();
+    this->nextStage();
+    this->codeAppendf("half4 %s;\n", args.fOutputColor);
+    fp->emitCode(args);
+    this->codeAppendf("return %s;", args.fOutputColor);
+    GrShaderVar inColor(args.fInputColor, kHalf4_GrSLType);
+    SkString result;
+    this->emitFunction(kHalf4_GrSLType,
+                       "stage",
+                       1,
+                       &inColor,
+                       this->code().c_str(),
+                       &result);
+    this->deleteStage();
+    this->onAfterChildProcEmitCode();
+    return result;
+}
+
 const char* GrGLSLFragmentShaderBuilder::dstColor() {
     SkDEBUGCODE(fHasReadDstColorThisStage_DebugOnly = true;)