Introduce GrColorSpaceXform, for gamut conversion on textures

[platform/upstream/libSkiaSharp.git] / src / gpu / effects / GrSimpleTextureEffect.h

diff --git a/src/gpu/effects/GrSimpleTextureEffect.h b/src/gpu/effects/GrSimpleTextureEffect.h
index ffc05e5..44e5c06 100644 (file)
--- a/src/gpu/effects/GrSimpleTextureEffect.h
+++ b/src/gpu/effects/GrSimpleTextureEffect.h
@@ -10,56 +10,78 @@
 
 #include "GrSingleTextureEffect.h"
 
-class GrGLSimpleTextureEffect;
+class GrInvariantOutput;
 
 /**
  * The output color of this effect is a modulation of the input color and a sample from a texture.
- * The coord to sample the texture is determine by a matrix. It allows explicit specification of
- * the filtering and wrap modes (GrTextureParams).
+ * It allows explicit specification of the filtering and wrap modes (GrTextureParams). It can use
+ * local coords or device space coords as input texture coords. The input coords may be transformed
+ * by a matrix.
  */
 class GrSimpleTextureEffect : public GrSingleTextureEffect {
 public:
     /* unfiltered, clamp mode */
-    static GrEffectRef* Create(GrTexture* tex, const SkMatrix& matrix) {
-        AutoEffectUnref effect(SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix)));
-        return CreateEffectRef(effect);
+    static sk_sp<GrFragmentProcessor> Make(GrTexture* tex,
+                                           sk_sp<GrColorSpaceXform> colorSpaceXform,
+                                           const SkMatrix& matrix,
+                                           GrCoordSet coordSet = kLocal_GrCoordSet) {
+        return sk_sp<GrFragmentProcessor>(
+            new GrSimpleTextureEffect(tex, std::move(colorSpaceXform), matrix,
+                                      GrTextureParams::kNone_FilterMode, coordSet));
     }
 
     /* clamp mode */
-    static GrEffectRef* Create(GrTexture* tex, const SkMatrix& matrix, bool bilerp) {
-        AutoEffectUnref effect(SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix, bilerp)));
-        return CreateEffectRef(effect);
+    static sk_sp<GrFragmentProcessor> Make(GrTexture* tex,
+                                           sk_sp<GrColorSpaceXform> colorSpaceXform,
+                                            const SkMatrix& matrix,
+                                            GrTextureParams::FilterMode filterMode,
+                                            GrCoordSet coordSet = kLocal_GrCoordSet) {
+        return sk_sp<GrFragmentProcessor>(
+            new GrSimpleTextureEffect(tex, std::move(colorSpaceXform), matrix, filterMode,
+                                      coordSet));
     }
 
-    static GrEffectRef* Create(GrTexture* tex, const SkMatrix& matrix, const GrTextureParams& p) {
-        AutoEffectUnref effect(SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix, p)));
-        return CreateEffectRef(effect);
+    static sk_sp<GrFragmentProcessor> Make(GrTexture* tex,
+                                           sk_sp<GrColorSpaceXform> colorSpaceXform,
+                                           const SkMatrix& matrix,
+                                           const GrTextureParams& p,
+                                           GrCoordSet coordSet = kLocal_GrCoordSet) {
+        return sk_sp<GrFragmentProcessor>(new GrSimpleTextureEffect(tex, std::move(colorSpaceXform),
+                                                                    matrix, p, coordSet));
     }
 
     virtual ~GrSimpleTextureEffect() {}
 
-    static const char* Name() { return "Texture"; }
+    const char* name() const override { return "SimpleTexture"; }
 
-    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
+private:
+    GrSimpleTextureEffect(GrTexture* texture,
+                          sk_sp<GrColorSpaceXform> colorSpaceXform,
+                          const SkMatrix& matrix,
+                          GrTextureParams::FilterMode filterMode,
+                          GrCoordSet coordSet)
+        : GrSingleTextureEffect(texture, std::move(colorSpaceXform), matrix, filterMode, coordSet) {
+        this->initClassID<GrSimpleTextureEffect>();
+    }
 
-    typedef GrGLSimpleTextureEffect GLEffect;
+    GrSimpleTextureEffect(GrTexture* texture,
+                          sk_sp<GrColorSpaceXform> colorSpaceXform,
+                          const SkMatrix& matrix,
+                          const GrTextureParams& params,
+                          GrCoordSet coordSet)
+        : GrSingleTextureEffect(texture, std::move(colorSpaceXform), matrix, params, coordSet) {
+        this->initClassID<GrSimpleTextureEffect>();
+    }
 
-    virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE;
+    GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
 
-private:
-    GrSimpleTextureEffect(GrTexture* texture, const SkMatrix& matrix)
-        : GrSingleTextureEffect(texture, matrix) {}
-    GrSimpleTextureEffect(GrTexture* texture, const SkMatrix& matrix, bool bilerp)
-        : GrSingleTextureEffect(texture, matrix, bilerp) {}
-    GrSimpleTextureEffect(GrTexture* texture, const SkMatrix& matrix, const GrTextureParams& params)
-        : GrSingleTextureEffect(texture, matrix, params) {}
-
-    virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE {
-        const GrSimpleTextureEffect& ste = CastEffect<GrSimpleTextureEffect>(other);
-        return this->hasSameTextureParamsAndMatrix(ste);
-    }
+    void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override;
+
+    bool onIsEqual(const GrFragmentProcessor& other) const override { return true; }
+
+    void onComputeInvariantOutput(GrInvariantOutput* inout) const override;
 
-    GR_DECLARE_EFFECT_TEST;
+    GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     typedef GrSingleTextureEffect INHERITED;
 };