chromium/third_party/skia/src/gpu/ganesh/geometry/GrQuad.cpp

/*
 * Copyright 2018 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/gpu/ganesh/geometry/GrQuad.h"

#include "include/core/SkMatrix.h"
#include "include/private/gpu/ganesh/GrTypesPriv.h"

V4f;

static bool aa_affects_rect(GrQuadAAFlags edgeFlags, float ql, float qt, float qr, float qb) { … }

static void map_rect_translate_scale(const SkRect& rect, const SkMatrix& m,
                                     V4f* xs, V4f* ys) { … }

static void map_quad_general(const V4f& qx, const V4f& qy, const SkMatrix& m,
                             V4f* xs, V4f* ys, V4f* ws) { … }

static void map_rect_general(const SkRect& rect, const SkMatrix& matrix,
                             V4f* xs, V4f* ys, V4f* ws) { … }

// Rearranges (top-left, top-right, bottom-right, bottom-left) ordered skQuadPts into xs and ys
// ordered (top-left, bottom-left, top-right, bottom-right)
static void rearrange_sk_to_gr_points(const SkPoint skQuadPts[4], V4f* xs, V4f* ys) { … }

// If an SkRect is transformed by this matrix, what class of quad is required to represent it.
static GrQuad::Type quad_type_for_transformed_rect(const SkMatrix& matrix) { … }

// Perform minimal analysis of 'pts' (which are suitable for MakeFromSkQuad), and determine a
// quad type that will be as minimally general as possible.
static GrQuad::Type quad_type_for_points(const SkPoint pts[4], const SkMatrix& matrix) { … }

GrQuad GrQuad::MakeFromRect(const SkRect& rect, const SkMatrix& m) { … }

GrQuad GrQuad::MakeFromSkQuad(const SkPoint pts[4], const SkMatrix& matrix) { … }

bool GrQuad::aaHasEffectOnRect(GrQuadAAFlags edgeFlags) const { … }

bool GrQuad::asRect(SkRect* rect) const { … }