src/gpu/ops/GrRectOpFactory.h

/*
 * 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 GrRectOpFactory_DEFINED
#define GrRectOpFactory_DEFINED

#include <memory>
#include "GrTypes.h"

enum class GrAAType : unsigned;
class GrDrawOp;
class GrPaint;
struct GrUserStencilSettings;
class SkMatrix;
struct SkRect;
class SkStrokeRec;

/**
 * A set of factory functions for drawing rectangles including fills, strokes, coverage-antialiased,
 * and non-antialiased. The non-antialiased ops can be used with MSAA. As with other GrDrawOp
 * factories, the GrPaint is only consumed by these methods if a valid op is returned. If null is
 * returned then the paint is unmodified and may still be used.
 */
namespace GrRectOpFactory {
/** AA Fill */

std::unique_ptr<GrDrawOp> MakeAAFill(GrContext*,
                                     GrPaint&&,
                                     const SkMatrix&,
                                     const SkRect&,
                                     const GrUserStencilSettings* = nullptr);

std::unique_ptr<GrDrawOp> MakeAAFillWithLocalMatrix(GrContext*,
                                                    GrPaint&&,
                                                    const SkMatrix& viewMatrix,
                                                    const SkMatrix& localMatrix,
                                                    const SkRect&);

std::unique_ptr<GrDrawOp> MakeAAFillWithLocalRect(GrContext*,
                                                  GrPaint&&,
                                                  const SkMatrix&,
                                                  const SkRect& rect,
                                                  const SkRect& localRect);

/** Non-AA Fill - GrAAType must be either kNone or kMSAA. */

std::unique_ptr<GrDrawOp> MakeNonAAFill(GrContext*,
                                        GrPaint&&,
                                        const SkMatrix& viewMatrix,
                                        const SkRect& rect,
                                        GrAAType,
                                        const GrUserStencilSettings* = nullptr);

std::unique_ptr<GrDrawOp> MakeNonAAFillWithLocalMatrix(GrContext*,
                                                       GrPaint&&,
                                                       const SkMatrix& viewMatrix,
                                                       const SkMatrix& localMatrix,
                                                       const SkRect&,
                                                       GrAAType,
                                                       const GrUserStencilSettings* = nullptr);

std::unique_ptr<GrDrawOp> MakeNonAAFillWithLocalRect(GrContext*,
                                                     GrPaint&&,
                                                     const SkMatrix&,
                                                     const SkRect& rect,
                                                     const SkRect& localRect,
                                                     GrAAType);

/** AA Stroke */

std::unique_ptr<GrDrawOp> MakeAAStroke(GrContext*,
                                       GrPaint&&,
                                       const SkMatrix&,
                                       const SkRect&,
                                       const SkStrokeRec&);

// rects[0] == outer rectangle, rects[1] == inner rectangle. Null return means there is nothing to
// draw rather than failure.
std::unique_ptr<GrDrawOp> MakeAAFillNestedRects(GrContext*,
                                                GrPaint&&,
                                                const SkMatrix&,
                                                const SkRect rects[2]);

/** Non-AA Stroke - GrAAType must be either kNone or kMSAA. */

std::unique_ptr<GrDrawOp> MakeNonAAStroke(GrContext*,
                                          GrPaint&&,
                                          const SkMatrix&,
                                          const SkRect&,
                                          const SkStrokeRec&,
                                          GrAAType);

}  // namespace GrRectOpFactory

#endif