michael@0: /*
michael@0:  * Copyright 2013 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #ifndef SkValidationUtils_DEFINED
michael@0: #define SkValidationUtils_DEFINED
michael@0: 
michael@0: #include "SkBitmap.h"
michael@0: #include "SkXfermode.h"
michael@0: 
michael@0: /** Returns true if coeff's value is in the SkXfermode::Coeff enum.
michael@0:   */
michael@0: static inline bool SkIsValidCoeff(SkXfermode::Coeff coeff) {
michael@0:     return coeff >= 0 && coeff < SkXfermode::kCoeffCount;
michael@0: }
michael@0: 
michael@0: /** Returns true if mode's value is in the SkXfermode::Mode enum.
michael@0:   */
michael@0: static inline bool SkIsValidMode(SkXfermode::Mode mode) {
michael@0:     return (mode >= 0) && (mode <= SkXfermode::kLastMode);
michael@0: }
michael@0: 
michael@0: /** Returns true if config's value is in the SkBitmap::Config enum.
michael@0:   */
michael@0: static inline bool SkIsValidConfig(SkBitmap::Config config) {
michael@0:     return (config >= 0) && (config <= static_cast<int>(SkBitmap::kConfigCount));
michael@0: }
michael@0: 
michael@0: /** Returns true if the rect's dimensions are between 0 and SK_MaxS32
michael@0:   */
michael@0: static inline bool SkIsValidIRect(const SkIRect& rect) {
michael@0:     return rect.width() >= 0 && rect.height() >= 0;
michael@0: }
michael@0: 
michael@0: /** Returns true if the rect's dimensions are between 0 and SK_ScalarMax
michael@0:   */
michael@0: static inline bool SkIsValidRect(const SkRect& rect) {
michael@0:     return (rect.fLeft <= rect.fRight) &&
michael@0:            (rect.fTop <= rect.fBottom) &&
michael@0:            SkScalarIsFinite(rect.width()) &&
michael@0:            SkScalarIsFinite(rect.height());
michael@0: }
michael@0: 
michael@0: #endif