Index: src/gpu/effects/GrInstanceProcessor.h |
diff --git a/src/gpu/effects/GrInstanceProcessor.h b/src/gpu/effects/GrInstanceProcessor.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..e8bf9e9d150e1a23716f91e1309076fc86966937 |
--- /dev/null |
+++ b/src/gpu/effects/GrInstanceProcessor.h |
@@ -0,0 +1,58 @@ |
+/* |
+ * Copyright 2016 Google Inc. |
+ * |
+ * Use of this source code is governed by a BSD-style license that can be |
+ * found in the LICENSE file. |
+ */ |
+ |
+#ifndef GrInstanceProcessor_DEFINED |
+#define GrInstanceProcessor_DEFINED |
+ |
+#include "GrBufferAccess.h" |
+#include "GrGeometryProcessor.h" |
+#include "GrInstancedRenderingTypes.h" |
+ |
+/** |
+ * This class provides a GP implementation that uses instanced rendering. Is sends geometry in as |
+ * basic, pre-baked canonical shapes, and uses instanced vertex attribs to control how these shapes |
+ * are transformed and drawn. MSAA is accomplished with the sample mask rather than finely |
+ * tesselated geometry. |
+ */ |
+class GrInstanceProcessor : public GrGeometryProcessor, private GrInstancedRenderingTypes { |
+public: |
+ static uint32_t GetSupportedAAModes(const GrGLSLCaps&, const GrCaps&); |
+ |
+ GrInstanceProcessor(BatchInfo, GrBuffer* paramsBuffer); |
+ |
+ const char* name() const override { return "Instance Processor"; } |
+ BatchInfo batchInfo() const { return fBatchInfo; } |
+ |
+ void getGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder* b) const override { |
+ b->add32(fBatchInfo.fData); |
+ } |
+ GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const override; |
+ |
+ /** |
+ * Returns a buffer of ShapeVertex that defines the canonical instanced geometry. |
+ */ |
+ static const GrBuffer* SK_WARN_UNUSED_RESULT FindOrCreateVertexBuffer(GrGpu*); |
+ |
+ /** |
+ * Returns a buffer of 8-bit indices for the canonical instanced geometry. The client can call |
+ * GetIndexRangeForXXX to know which indices to use for a specific shape. |
+ */ |
+ static const GrBuffer* SK_WARN_UNUSED_RESULT FindOrCreateIndex8Buffer(GrGpu*); |
+ |
+ static void GetIndexRangeForRect(AntialiasMode, uint32_t* firstIndex, uint32_t* count); |
+ static void GetIndexRangeForOval(AntialiasMode, const SkRect& devBounds, uint32_t* firstIndex, |
+ uint32_t* count); |
+ static void GetIndexRangeForRRect(AntialiasMode, uint32_t* firstIndex, uint32_t* count); |
+ |
+private: |
+ const BatchInfo fBatchInfo; |
+ GrBufferAccess fParamsAccess; |
+ |
+ typedef GrGeometryProcessor INHERITED; |
+}; |
+ |
+#endif |