1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/core/SkValidationUtils.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,47 @@
1.4 +/*
1.5 + * Copyright 2013 Google Inc.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#ifndef SkValidationUtils_DEFINED
1.12 +#define SkValidationUtils_DEFINED
1.13 +
1.14 +#include "SkBitmap.h"
1.15 +#include "SkXfermode.h"
1.16 +
1.17 +/** Returns true if coeff's value is in the SkXfermode::Coeff enum.
1.18 + */
1.19 +static inline bool SkIsValidCoeff(SkXfermode::Coeff coeff) {
1.20 + return coeff >= 0 && coeff < SkXfermode::kCoeffCount;
1.21 +}
1.22 +
1.23 +/** Returns true if mode's value is in the SkXfermode::Mode enum.
1.24 + */
1.25 +static inline bool SkIsValidMode(SkXfermode::Mode mode) {
1.26 + return (mode >= 0) && (mode <= SkXfermode::kLastMode);
1.27 +}
1.28 +
1.29 +/** Returns true if config's value is in the SkBitmap::Config enum.
1.30 + */
1.31 +static inline bool SkIsValidConfig(SkBitmap::Config config) {
1.32 + return (config >= 0) && (config <= static_cast<int>(SkBitmap::kConfigCount));
1.33 +}
1.34 +
1.35 +/** Returns true if the rect's dimensions are between 0 and SK_MaxS32
1.36 + */
1.37 +static inline bool SkIsValidIRect(const SkIRect& rect) {
1.38 + return rect.width() >= 0 && rect.height() >= 0;
1.39 +}
1.40 +
1.41 +/** Returns true if the rect's dimensions are between 0 and SK_ScalarMax
1.42 + */
1.43 +static inline bool SkIsValidRect(const SkRect& rect) {
1.44 + return (rect.fLeft <= rect.fRight) &&
1.45 + (rect.fTop <= rect.fBottom) &&
1.46 + SkScalarIsFinite(rect.width()) &&
1.47 + SkScalarIsFinite(rect.height());
1.48 +}
1.49 +
1.50 +#endif
