chromium/third_party/skia/src/gpu/ganesh/ops/PathInnerTriangulateOp.h

/*
 * Copyright 2019 Google LLC.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef PathInnerTriangulateOp_DEFINED
#define PathInnerTriangulateOp_DEFINED

#include "include/core/SkTypes.h"

#if !defined(SK_ENABLE_OPTIMIZE_SIZE)

#include "include/core/SkMatrix.h"
#include "include/core/SkPath.h"
#include "include/core/SkRefCnt.h"
#include "include/private/SkColorData.h"
#include "include/private/base/SkTArray.h"
#include "include/private/gpu/ganesh/GrTypesPriv.h"
#include "src/gpu/ganesh/GrBuffer.h"
#include "src/gpu/ganesh/GrCaps.h"
#include "src/gpu/ganesh/GrGpuBuffer.h"
#include "src/gpu/ganesh/GrPaint.h"
#include "src/gpu/ganesh/GrProcessorSet.h"
#include "src/gpu/ganesh/geometry/GrInnerFanTriangulator.h"
#include "src/gpu/ganesh/geometry/GrTriangulator.h"
#include "src/gpu/ganesh/ops/GrDrawOp.h"
#include "src/gpu/ganesh/ops/GrOp.h"
#include "src/gpu/ganesh/tessellate/GrTessellationShader.h"

#include <utility>

class GrAppliedClip;
class GrDstProxyView;
class GrOpFlushState;
class GrPipeline;
class GrProgramInfo;
class GrRecordingContext;
class GrSurfaceProxyView;
enum class GrXferBarrierFlags;
struct GrUserStencilSettings;
struct SkRect;

namespace skgpu::ganesh {

class PathCurveTessellator;
enum class FillPathFlags;

// This op is a 3-pass twist on the standard Redbook "stencil then cover" algorithm:
//
// 1) Tessellate the path's outer curves into the stencil buffer.
// 2) Triangulate the path's inner fan and fill it with a stencil test against the curves.
// 3) Draw convex hulls around each curve that fill in remaining samples.
//
// In practice, a path's inner fan takes up a large majority of its pixels. So from a GPU load
// perspective, this op is effectively as fast as a single-pass algorithm.
class PathInnerTriangulateOp final : public GrDrawOp { … };

}  // namespace skgpu::ganesh

#endif // SK_ENABLE_OPTIMIZE_SIZE

#endif // PathInnerTriangulateOp_DEFINED