1 /* 2 Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization 3 dedicated to making software imaging solutions freely available. 4 5 You may not use this file except in compliance with the License. 6 obtain a copy of the License at 7 8 http://www.imagemagick.org/script/license.php 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 16 MagickCore image colormap methods. 17 */ 18 #ifndef MAGICKCORE_COLORMAP_PRIVATE_H 19 #define MAGICKCORE_COLORMAP_PRIVATE_H 20 21 #include "MagickCore/image.h" 22 #include "MagickCore/color.h" 23 #include "MagickCore/exception-private.h" 24 25 #if defined(__cplusplus) || defined(c_plusplus) 26 extern "C" { 27 #endif 28 29 static inline ssize_t ConstrainColormapIndex(Image *image,const ssize_t index, 30 ExceptionInfo *exception) 31 { 32 if ((index < 0) || (index >= (ssize_t) image->colors)) 33 { 34 (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError, 35 "InvalidColormapIndex","`%s'",image->filename); 36 return(0); 37 } 38 return((ssize_t) index); 39 } 40 41 static inline void ValidateColormapValue(Image *image, 42 const ssize_t index,Quantum *target,ExceptionInfo *exception) 43 { 44 if ((index < 0) || (index >= (ssize_t) image->colors)) 45 { 46 (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError, 47 "InvalidColormapIndex","`%s'",image->filename); 48 *target=(Quantum) 0; 49 } 50 else 51 *target=(Quantum) index; 52 } 53 54 #if defined(__cplusplus) || defined(c_plusplus) 55 } 56 #endif 57 58 #endif 59
