added support for PLS path rendering
BUG=skia:3555
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1541903002
Committed: https://skia.googlesource.com/skia/+/7df3f5e127f8016d17b637cc48a6a4718f1a6822
Review URL: https://codereview.chromium.org/1541903002
diff --git a/src/gpu/GrPrimitiveProcessor.h b/src/gpu/GrPrimitiveProcessor.h
index 467200a..c1e946d 100644
--- a/src/gpu/GrPrimitiveProcessor.h
+++ b/src/gpu/GrPrimitiveProcessor.h
@@ -47,6 +47,16 @@
struct GrInitInvariantOutput;
+// Describes the state of pixel local storage with respect to the current draw.
+enum GrPixelLocalStorageState {
+ // The draw is actively updating PLS.
+ kDraw_GrPixelLocalStorageState,
+ // The draw is a "finish" operation which is reading from PLS and writing color.
+ kFinish_GrPixelLocalStorageState,
+ // The draw does not use PLS.
+ kDisabled_GrPixelLocalStorageState
+};
+
/*
* This class allows the GrPipeline to communicate information about the pipeline to a
* GrBatch which should be forwarded to the GrPrimitiveProcessor(s) created by the batch.
@@ -199,7 +209,7 @@
the object. */
virtual GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps& caps) const = 0;
- bool isPathRendering() const { return fIsPathRendering; }
+ virtual bool isPathRendering() const { return false; }
/**
* No Local Coord Transformation is needed in the shader, instead transformed local coords will
@@ -207,11 +217,19 @@
*/
virtual bool hasTransformedLocalCoords() const = 0;
+ virtual GrPixelLocalStorageState getPixelLocalStorageState() const {
+ return kDisabled_GrPixelLocalStorageState;
+ }
+
+ /**
+ * If non-null, overrides the dest color returned by GrGLSLFragmentShaderBuilder::dstColor().
+ */
+ virtual const char* getDestColorOverride() const { return nullptr; }
+
protected:
- GrPrimitiveProcessor(bool isPathRendering)
+ GrPrimitiveProcessor()
: fNumAttribs(0)
- , fVertexStride(0)
- , fIsPathRendering(isPathRendering) {}
+ , fVertexStride(0) {}
Attribute fAttribs[kMaxVertexAttribs];
int fNumAttribs;
@@ -221,8 +239,6 @@
void notifyRefCntIsZero() const final {};
virtual bool hasExplicitLocalCoords() const = 0;
- bool fIsPathRendering;
-
typedef GrProcessor INHERITED;
};