1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkValidationUtils_DEFINED
9#define SkValidationUtils_DEFINED
10
11#include "SkBitmap.h"
12#include "SkBlendMode.h"
13#include "SkXfermodePriv.h"
14
15/** Returns true if mode's value is in the SkBlendMode enum.
16  */
17static inline bool SkIsValidMode(SkBlendMode mode) {
18    return (unsigned)mode <= (unsigned)SkBlendMode::kLastMode;
19}
20
21/** Returns true if the rect's dimensions are between 0 and SK_MaxS32
22  */
23static inline bool SkIsValidIRect(const SkIRect& rect) {
24    return rect.width() >= 0 && rect.height() >= 0;
25}
26
27/** Returns true if the rect's dimensions are between 0 and SK_ScalarMax
28  */
29static inline bool SkIsValidRect(const SkRect& rect) {
30    return (rect.fLeft <= rect.fRight) &&
31           (rect.fTop <= rect.fBottom) &&
32           SkScalarIsFinite(rect.width()) &&
33           SkScalarIsFinite(rect.height());
34}
35
36#endif
37