Revert of Stop flattening GrCoordTransforms in parent GrFragmentProcessors. (patchset #3 id:40001 of https://codereview.chromium.org/2339203002/ )

Reason for revert:
Crashing blink
 https://codereview.chromium.org/2351743002/

Original issue's description:
> Stop flattening GrCoordTransforms in parent GrFragmentProcessors.
>
> This changes moves to a model that iterates over GrCTs in a GrFP hierarchy when inserting transformations by GrGLSLPrimitiveProcessors.
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2339203002
>
> Committed: https://skia.googlesource.com/skia/+/d91237ee051523f439238042674ade99207fe4a6

TBR=egdaniel@google.com,robertphillips@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2351753002

1 files changed, 4 insertions, 28 deletions

diff --git a/src/gpu/glsl/GrGLSLFragmentProcessor.h b/src/gpu/glsl/GrGLSLFragmentProcessor.h
index 9889bcc9c6..f4a93ebe71 100644
--- a/src/gpu/glsl/GrGLSLFragmentProcessor.h
+++ b/src/gpu/glsl/GrGLSLFragmentProcessor.h
@@ -33,30 +33,6 @@ public:
     typedef GrGLSLProgramDataManager::UniformHandle UniformHandle;
     typedef GrGLSLProgramDataManager::UniformHandle SamplerHandle;
 
-    /**
-     * When building a program from a GrPipeline this is used to provide the GrShaderVars that
-     * contain the resulting transformed coords from each of a GrFragmentProcessor's
-     * GrCoordTransforms. This allows the GrFragmentProcessor subclasses to refer to the transformed
-     * coords in fragment code.
-     */
-    class TransformedCoordVars {
-    public:
-        TransformedCoordVars(const GrFragmentProcessor* fp, const GrShaderVar* vars)
-                : fFP(fp)
-                , fTransformedVars(vars) {}
-
-        const GrShaderVar& operator[] (int i) const {
-            SkASSERT(i >= 0 && i < fFP->numCoordTransforms());
-            return fTransformedVars[i];
-        }
-
-        TransformedCoordVars childTransforms(int childIdx) const;
-
-    private:
-        const GrFragmentProcessor* fFP;
-        const GrShaderVar*         fTransformedVars;
-    };
-
     /** Called when the program stage should insert its code into the shaders. The code in each
         shader will be in its own block ({}) and so locally scoped names will not collide across
         stages.
@@ -74,7 +50,7 @@ public:
                                  etc.) that allows the processor to communicate back similar known
                                  info about its output.
         @param transformedCoords Fragment shader variables containing the coords computed using
-                                 each of the GrFragmentProcessor's GrCoordTransforms.
+                                 each of the GrFragmentProcessor's Coord Transforms.
         @param texSamplers       Contains one entry for each GrTextureAccess of the GrProcessor.
                                  These can be passed to the builder to emit texture reads in the
                                  generated code.
@@ -89,7 +65,7 @@ public:
                  const GrFragmentProcessor& fp,
                  const char* outputColor,
                  const char* inputColor,
-                 const TransformedCoordVars& transformedCoordVars,
+                 const SkTArray<GrShaderVar>& transformedCoords,
                  const SamplerHandle* texSamplers,
                  const SamplerHandle* bufferSamplers,
                  bool gpImplementsDistanceVector)
@@ -99,7 +75,7 @@ public:
             , fFp(fp)
             , fOutputColor(outputColor)
             , fInputColor(inputColor)
-            , fTransformedCoords(transformedCoordVars)
+            , fTransformedCoords(transformedCoords)
             , fTexSamplers(texSamplers)
             , fBufferSamplers(bufferSamplers)
             , fGpImplementsDistanceVector(gpImplementsDistanceVector) {}
@@ -109,7 +85,7 @@ public:
         const GrFragmentProcessor& fFp;
         const char* fOutputColor;
         const char* fInputColor;
-        const TransformedCoordVars& fTransformedCoords;
+        const SkTArray<GrShaderVar>& fTransformedCoords;
         const SamplerHandle* fTexSamplers;
         const SamplerHandle* fBufferSamplers;
         bool fGpImplementsDistanceVector;