Implement NVPR on GLES

src/gpu/gl/GrGLProgramEffects.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLProgramEffects_DEFINED
 #define GrGLProgramEffects_DEFINED
 
 #include "GrBackendEffectFactory.h"
 #include "GrTexture.h"
 #include "GrTextureAccess.h"
 #include "GrGLUniformManager.h"
+#include "GrGpu.h"
 
 class GrEffectStage;
 class GrGLVertexProgramEffectsBuilder;
 class GrGLShaderBuilder;
 class GrGLFullShaderBuilder;
 class GrGLFragmentOnlyShaderBuilder;
 
 /**
  * This class encapsulates an array of GrGLEffects and their supporting data (coord transforms
  * and textures). It is built with GrGLProgramEffectsBuilder, then used to manage the necessary GL
  * state and shader uniforms.
  */
 class GrGLProgramEffects : public SkRefCnt {
 public:
     typedef GrBackendEffectFactory::EffectKey EffectKey;
     typedef GrGLUniformManager::UniformHandle UniformHandle;
+    typedef GrGLUniformManager::FragmentInputHandle FragmentInputHandle;
 
     /**
      * These methods generate different portions of an effect's final key.
      */
     static EffectKey GenAttribKey(const GrDrawEffect&);
     static EffectKey GenTransformKey(const GrDrawEffect&);
     static EffectKey GenTextureKey(const GrDrawEffect&, const GrGLCaps&);
 
     virtual ~GrGLProgramEffects();
 
     /**
      * Assigns a texture unit to each sampler. It starts on *texUnitIdx and writes the next
      * available unit to *texUnitIdx when it returns.
      */
     void initSamplers(const GrGLUniformManager&, int* texUnitIdx);
 
     /**
      * Calls setData() on each effect, and sets their transformation matrices and texture bindings.
      */
     virtual void setData(GrGpuGL*,
+                         GrGpu::DrawType,
                          const GrGLUniformManager&,
                          const GrEffectStage* effectStages[]) = 0;
 
     /**
      * Passed to GrGLEffects so they can add transformed coordinates to their shader code.
      */
     class TransformedCoords {
     public:
         TransformedCoords(const SkString& name, GrSLType type)
             : fName(name), fType(type) {
@@ skipping 84 matching lines @@
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 
 /**
  * This is a GrGLProgramEffects implementation that does coord transforms with the vertex shader.
  */
 class GrGLVertexProgramEffects : public GrGLProgramEffects {
 public:
     virtual void setData(GrGpuGL*,
+                         GrGpu::DrawType,
                          const GrGLUniformManager&,
                          const GrEffectStage* effectStages[]) SK_OVERRIDE;
 
 private:
     friend class GrGLVertexProgramEffectsBuilder;
 
     GrGLVertexProgramEffects(int reserveCount, bool explicitLocalCoords)
         : INHERITED(reserveCount)
         , fTransforms(reserveCount)
         , fHasExplicitLocalCoords(explicitLocalCoords) {
@@ skipping 23 matching lines @@
      * TransformedCoordsArray* object, which is in turn passed to the effect's emitCode() function.
      */
     void emitTransforms(GrGLFullShaderBuilder*,
                         const GrEffectRef&,
                         EffectKey,
                         TransformedCoordsArray*);
 
     /**
      * Helper for setData(). Sets all the transform matrices for an effect.
      */
-    void setTransformData(const GrGLUniformManager&, const GrDrawEffect&, int effectIdx);
+    void setTransformData(GrGpuGL* gpu, const GrGLUniformManager&, const GrDrawEffect&, int effectIdx);
+    void setFragmentInputTransformData(GrGpuGL* gpu, const GrGLUniformManager&, const GrDrawEffect&, 
+                                       int effectIdx);
 
     struct Transform {
         Transform() { fCurrentValue = SkMatrix::InvalidMatrix(); }
         UniformHandle fHandle;
         SkMatrix      fCurrentValue;
     };
-
+    struct FragmentInputTransform {
+        FragmentInputTransform() { fCurrentValue = SkMatrix::InvalidMatrix(); }
+        FragmentInputHandle fHandle;
+        SkMatrix fCurrentValue;
+        GrSLType fType;
+    };
     SkTArray<SkSTArray<2, Transform, true> > fTransforms;
+    SkTArray<SkTArray<FragmentInputTransform, true> > fFragmentInputTransforms;
     bool                                     fHasExplicitLocalCoords;
 
     typedef GrGLProgramEffects INHERITED;
 };
 
 /**
  * This class is used to construct a GrGLVertexProgramEffects* object.
  */
 class GrGLVertexProgramEffectsBuilder : public GrGLProgramEffectsBuilder {
 public:
@@ skipping 21 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
 /**
  * This is a GrGLProgramEffects implementation that does coord transforms with
  * the the  NV_path_rendering PathTexGen functionality.
  */
 class GrGLPathTexGenProgramEffects : public GrGLProgramEffects {
 public:
     virtual void setData(GrGpuGL*,
+                         GrGpu::DrawType,
                          const GrGLUniformManager&,
                          const GrEffectStage* effectStages[]) SK_OVERRIDE;
 
 private:
     friend class GrGLPathTexGenProgramEffectsBuilder;
 
     GrGLPathTexGenProgramEffects(int reserveCount)
         : INHERITED(reserveCount)
         , fTransforms(reserveCount) {
     }
@@ skipping 60 matching lines @@
     GrGLProgramEffects* finish() { return fProgramEffects.detach(); }
 
 private:
     GrGLFragmentOnlyShaderBuilder*          fBuilder;
     SkAutoTDelete<GrGLPathTexGenProgramEffects> fProgramEffects;
 
     typedef GrGLProgramEffectsBuilder INHERITED;
 };
 
 #endif