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-rw-r--r--chromium/third_party/skia/experimental/AndroidPathRenderer/AndroidPathRenderer.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/chromium/third_party/skia/experimental/AndroidPathRenderer/AndroidPathRenderer.h b/chromium/third_party/skia/experimental/AndroidPathRenderer/AndroidPathRenderer.h
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index 00000000000..0e87aed1d1f
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+++ b/chromium/third_party/skia/experimental/AndroidPathRenderer/AndroidPathRenderer.h
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+/*
+ * Copyright 2012 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef ANDROID_HWUI_PATH_RENDERER_H
+#define ANDROID_HWUI_PATH_RENDERER_H
+
+#include <SkTArray.h>
+
+#include "Vertex.h"
+
+class SkMatrix;
+
+namespace android {
+namespace uirenderer {
+
+class VertexBuffer {
+public:
+ VertexBuffer():
+ mBuffer(0),
+ mSize(0),
+ mCleanupMethod(0)
+ {}
+
+ ~VertexBuffer() {
+ if (mCleanupMethod)
+ mCleanupMethod(mBuffer);
+ }
+
+ template <class TYPE>
+ TYPE* alloc(int size) {
+ mSize = size;
+ mBuffer = (void*)new TYPE[size];
+ mCleanupMethod = &(cleanup<TYPE>);
+
+ return (TYPE*)mBuffer;
+ }
+
+ void* getBuffer() { return mBuffer; }
+ unsigned int getSize() { return mSize; }
+
+private:
+ template <class TYPE>
+ static void cleanup(void* buffer) {
+ delete[] (TYPE*)buffer;
+ }
+
+ void* mBuffer;
+ unsigned int mSize;
+ void (*mCleanupMethod)(void*);
+};
+
+class PathRenderer {
+public:
+ static SkRect ComputePathBounds(const SkPath& path, const SkPaint* paint);
+
+ static void ConvexPathVertices(const SkPath& path, const SkStrokeRec& stroke, bool isAA,
+ const SkMatrix* transform, VertexBuffer* vertexBuffer);
+
+private:
+ static bool ConvexPathPerimeterVertices(const SkPath &path, bool forceClose,
+ float sqrInvScaleX, float sqrInvScaleY, SkTArray<Vertex, true>* outputVertices);
+
+/*
+ endpoints a & b,
+ control c
+ */
+ static void RecursiveQuadraticBezierVertices(
+ float ax, float ay,
+ float bx, float by,
+ float cx, float cy,
+ float sqrInvScaleX, float sqrInvScaleY,
+ SkTArray<Vertex, true>* outputVertices);
+
+/*
+ endpoints p1, p2
+ control c1, c2
+ */
+ static void RecursiveCubicBezierVertices(
+ float p1x, float p1y,
+ float c1x, float c1y,
+ float p2x, float p2y,
+ float c2x, float c2y,
+ float sqrInvScaleX, float sqrInvScaleY,
+ SkTArray<Vertex, true>* outputVertices);
+};
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // ANDROID_HWUI_PATH_RENDERER_H