CCPR: Rename GrCCPR* -> GrCC*
Also runs clang-format on the files that don't have special shader
builder styling.
Bug: skia:
Change-Id: I4a67569a7c8472acfb9200644c913844a92e3b2d
Reviewed-on: https://skia-review.googlesource.com/92083
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/ccpr/GrCCPathProcessor.h b/src/gpu/ccpr/GrCCPathProcessor.h
new file mode 100644
index 0000000..0b89358
--- /dev/null
+++ b/src/gpu/ccpr/GrCCPathProcessor.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrCCPathProcessor_DEFINED
+#define GrCCPathProcessor_DEFINED
+
+#include "GrGeometryProcessor.h"
+#include "SkPath.h"
+#include <array>
+
+class GrOnFlushResourceProvider;
+class GrShaderCaps;
+
+/**
+ * This class draws AA paths using the coverage count masks produced by GrCCCoverageProcessor.
+ *
+ * Paths are drawn as bloated octagons, and coverage is derived from the coverage count mask and
+ * fill rule.
+ *
+ * The caller must set up an instance buffer as detailed below, then draw indexed-instanced
+ * triangles using the index and vertex buffers provided by this class.
+ */
+class GrCCPathProcessor : public GrGeometryProcessor {
+public:
+ static constexpr int kPerInstanceIndexCount = 6 * 3;
+
+ enum class InstanceAttribs {
+ kDevBounds,
+ kDevBounds45,
+ kViewMatrix, // FIXME: This causes a lot of duplication. It could move to a texel buffer.
+ kViewTranslate,
+ kAtlasOffset,
+ kColor
+ };
+ static constexpr int kNumInstanceAttribs = 1 + (int)InstanceAttribs::kColor;
+
+ struct Instance {
+ SkRect fDevBounds;
+ SkRect fDevBounds45; // Bounding box in "| 1 -1 | * devCoords" space.
+ // | 1 1 |
+ std::array<float, 4> fViewMatrix; // {kScaleX, kSkewy, kSkewX, kScaleY}
+ std::array<float, 2> fViewTranslate;
+ std::array<int16_t, 2> fAtlasOffset;
+ uint32_t fColor;
+
+ GR_STATIC_ASSERT(SK_SCALAR_IS_FLOAT);
+ };
+
+ GR_STATIC_ASSERT(4 * 16 == sizeof(Instance));
+
+ static sk_sp<const GrBuffer> FindIndexBuffer(GrOnFlushResourceProvider*);
+ static sk_sp<const GrBuffer> FindVertexBuffer(GrOnFlushResourceProvider*);
+
+ GrCCPathProcessor(GrResourceProvider*, sk_sp<GrTextureProxy> atlas, SkPath::FillType,
+ const GrShaderCaps&);
+
+ const char* name() const override { return "GrCCPathProcessor"; }
+ const GrSurfaceProxy* atlasProxy() const { return fAtlasAccess.proxy(); }
+ const GrTexture* atlas() const { return fAtlasAccess.peekTexture(); }
+ SkPath::FillType fillType() const { return fFillType; }
+ const Attribute& getInstanceAttrib(InstanceAttribs attribID) const {
+ const Attribute& attrib = this->getAttrib((int)attribID);
+ SkASSERT(Attribute::InputRate::kPerInstance == attrib.fInputRate);
+ return attrib;
+ }
+ const Attribute& getEdgeNormsAttrib() const {
+ SkASSERT(1 + kNumInstanceAttribs == this->numAttribs());
+ const Attribute& attrib = this->getAttrib(kNumInstanceAttribs);
+ SkASSERT(Attribute::InputRate::kPerVertex == attrib.fInputRate);
+ return attrib;
+ }
+
+ void getGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
+ GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps&) const override;
+
+private:
+ const SkPath::FillType fFillType;
+ const TextureSampler fAtlasAccess;
+
+ typedef GrGeometryProcessor INHERITED;
+};
+
+#endif