Line data    Source code

       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 coeff's value is in the SkXfermode::Coeff enum.
      16             :   */
      17             : static inline bool SkIsValidCoeff(SkXfermode::Coeff coeff) {
      18             :     return coeff >= 0 && coeff < SkXfermode::kCoeffCount;
      19             : }
      20             : 
      21             : /** Returns true if mode's value is in the SkBlendMode enum.
      22             :   */
      23           0 : static inline bool SkIsValidMode(SkBlendMode mode) {
      24           0 :     return (unsigned)mode <= (unsigned)SkBlendMode::kLastMode;
      25             : }
      26             : 
      27             : /** Returns true if the rect's dimensions are between 0 and SK_MaxS32
      28             :   */
      29             : static inline bool SkIsValidIRect(const SkIRect& rect) {
      30             :     return rect.width() >= 0 && rect.height() >= 0;
      31             : }
      32             : 
      33             : /** Returns true if the rect's dimensions are between 0 and SK_ScalarMax
      34             :   */
      35           0 : static inline bool SkIsValidRect(const SkRect& rect) {
      36           0 :     return (rect.fLeft <= rect.fRight) &&
      37           0 :            (rect.fTop <= rect.fBottom) &&
      38           0 :            SkScalarIsFinite(rect.width()) &&
      39           0 :            SkScalarIsFinite(rect.height());
      40             : }
      41             : 
      42             : #endif