| /* |

| * 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 GrQuadUtils_DEFINED |

| #define GrQuadUtils_DEFINED |

| |

| enum class GrQuadAAFlags; |

| enum class GrAA : bool; |

| enum class GrAAType : unsigned; |

| class GrQuad; |

| struct SkRect; |

| |

| namespace GrQuadUtils { |

| |

| // Resolve disagreements between the overall requested AA type and the per-edge quad AA flags. |

| // Both outAAType and outEdgeFlags will be updated. |

| void ResolveAAType(GrAAType requestedAAType, GrQuadAAFlags requestedEdgeFlags, |

| const GrQuad& quad, GrAAType* outAAtype, GrQuadAAFlags* outEdgeFlags); |

| |

| /** |

| * Crops quad to the provided device-space axis-aligned rectangle. If the intersection of this |

| * quad (projected) and cropRect results in a quadrilateral, this returns true. If not, this |

| * quad may be updated to be a smaller quad of the same type such that its intersection with |

| * cropRect is visually the same. This function assumes that the 'quad' coordinates are finite. |

| * |

| * The provided edge flags are updated to reflect edges clipped by cropRect (toggling on or off |

| * based on cropAA policy). If provided, the local coordinates will be updated to reflect the |

| * updated device coordinates of this quad. |

| * |

| * 'local' may be null, in which case the new local coordinates will not be calculated. This is |

| * useful when it's known a paint does not require local coordinates. However, neither |

| * 'edgeFlags' nore 'quad' can be null. |

| */ |

| bool CropToRect(const SkRect& cropRect, GrAA cropAA, GrQuadAAFlags* edgeFlags, GrQuad* quad, |

| GrQuad* local=nullptr); |

| |

| }; // namespace GrQuadUtils |

| |

| #endif |