Added tree structure to GrGLFragmentProcessor, i.e. GL instances

src/effects/SkMagnifierImageFilter.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkMagnifierImageFilter.h"
 #include "SkColorPriv.h"
@@ skipping 29 matching lines @@
                                               xInvZoom,
                                               yInvZoom,
                                               xInvInset,
                                               yInvInset));
     }
 
     virtual ~GrMagnifierEffect() {};
 
     const char* name() const override { return "Magnifier"; }
 
-    GrGLFragmentProcessor* createGLInstance() const override;
-
     const SkRect& bounds() const { return fBounds; }    // Bounds of source image.
     // Offset to apply to zoomed pixels, (srcRect position / texture size).
     float x_offset() const { return fXOffset; }
     float y_offset() const { return fYOffset; }
 
     // Scale to apply to zoomed pixels (srcRect size / bounds size).
     float x_inv_zoom() const { return fXInvZoom; }
     float y_inv_zoom() const { return fYInvZoom; }
 
     // 1/radius over which to transition from unzoomed to zoomed pixels (bounds size / inset).
@@ skipping 14 matching lines @@
         , fBounds(bounds)
         , fXOffset(xOffset)
         , fYOffset(yOffset)
         , fXInvZoom(xInvZoom)
         , fYInvZoom(yInvZoom)
         , fXInvInset(xInvInset)
         , fYInvInset(yInvInset) {
         this->initClassID<GrMagnifierEffect>();
     }
 
+    GrGLFragmentProcessor* onCreateGLInstance() const override;
+
     void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override;
 
     bool onIsEqual(const GrFragmentProcessor&) const override;
 
     void onComputeInvariantOutput(GrInvariantOutput* inout) const override;
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     SkRect fBounds;
     float fXOffset;
     float fYOffset;
     float fXInvZoom;
     float fYInvZoom;
     float fXInvInset;
     float fYInvInset;
 
     typedef GrSingleTextureEffect INHERITED;
 };
 
 // For brevity
 typedef GrGLProgramDataManager::UniformHandle UniformHandle;
 
 class GrGLMagnifierEffect : public GrGLFragmentProcessor {
 public:
     GrGLMagnifierEffect(const GrProcessor&);
 
     virtual void emitCode(EmitArgs&) override;
 
-    void setData(const GrGLProgramDataManager&, const GrProcessor&) override;
+protected:
+    void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override;
 
 private:
     UniformHandle       fOffsetVar;
     UniformHandle       fInvZoomVar;
     UniformHandle       fInvInsetVar;
     UniformHandle       fBoundsVar;
 
     typedef GrGLFragmentProcessor INHERITED;
 };
 
@@ skipping 46 matching lines @@
     fsBuilder->codeAppend("\t\tvec4 output_color = ");
     fsBuilder->appendTextureLookup(args.fSamplers[0], "mix_coord");
     fsBuilder->codeAppend(";\n");
 
     fsBuilder->codeAppendf("\t\t%s = output_color;", args.fOutputColor);
     SkString modulate;
     GrGLSLMulVarBy4f(&modulate, args.fOutputColor, args.fInputColor);
     fsBuilder->codeAppend(modulate.c_str());
 }
 
-void GrGLMagnifierEffect::setData(const GrGLProgramDataManager& pdman,
+void GrGLMagnifierEffect::onSetData(const GrGLProgramDataManager& pdman,
                                   const GrProcessor& effect) {
     const GrMagnifierEffect& zoom = effect.cast<GrMagnifierEffect>();
     pdman.set2f(fOffsetVar, zoom.x_offset(), zoom.y_offset());
     pdman.set2f(fInvZoomVar, zoom.x_inv_zoom(), zoom.y_inv_zoom());
     pdman.set2f(fInvInsetVar, zoom.x_inv_inset(), zoom.y_inv_inset());
     pdman.set4f(fBoundsVar, zoom.bounds().x(), zoom.bounds().y(),
                             zoom.bounds().width(), zoom.bounds().height());
 }
 
 /////////////////////////////////////////////////////////////////////
 
 void GrMagnifierEffect::onGetGLProcessorKey(const GrGLSLCaps& caps,
                                           GrProcessorKeyBuilder* b) const {
     GrGLMagnifierEffect::GenKey(*this, caps, b);
 }
 
-GrGLFragmentProcessor* GrMagnifierEffect::createGLInstance() const {
+GrGLFragmentProcessor* GrMagnifierEffect::onCreateGLInstance() const {
     return SkNEW_ARGS(GrGLMagnifierEffect, (*this));
 }
 
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrMagnifierEffect);
 
 GrFragmentProcessor* GrMagnifierEffect::TestCreate(GrProcessorTestData* d) {
     GrTexture* texture = d->fTextures[0];
     const int kMaxWidth = 200;
     const int kMaxHeight = 200;
     const int kMaxInset = 20;
@@ skipping 170 matching lines @@
 
 #ifndef SK_IGNORE_TO_STRING
 void SkMagnifierImageFilter::toString(SkString* str) const {
     str->appendf("SkMagnifierImageFilter: (");
     str->appendf("src: (%f,%f,%f,%f) ",
                  fSrcRect.fLeft, fSrcRect.fTop, fSrcRect.fRight, fSrcRect.fBottom);
     str->appendf("inset: %f", fInset);
     str->append(")");
 }
 #endif