cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % RRRR GGG FFFFF % |
| 7 | % R R G F % |
| 8 | % RRRR G GG FFF % |
| 9 | % R R G G F % |
| 10 | % R R GGG F % |
| 11 | % % |
| 12 | % % |
| 13 | % Read/Write LEGO Mindstorms EV3 Robot Graphics File % |
| 14 | % % |
| 15 | % Software Design % |
| 16 | % Brian Wheeler % |
| 17 | % August 2013 % |
| 18 | % % |
| 19 | % % |
cristy | b56bb24 | 2014-11-25 17:12:48 +0000 | [diff] [blame] | 20 | % Copyright 1999-2015 ImageMagick Studio LLC, a non-profit organization % |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 21 | % dedicated to making software imaging solutions freely available. % |
| 22 | % % |
| 23 | % You may not use this file except in compliance with the License. You may % |
| 24 | % obtain a copy of the License at % |
| 25 | % % |
| 26 | % http://www.imagemagick.org/script/license.php % |
| 27 | % % |
| 28 | % Unless required by applicable law or agreed to in writing, software % |
| 29 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 30 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 31 | % See the License for the specific language governing permissions and % |
| 32 | % limitations under the License. % |
| 33 | % % |
| 34 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 35 | % |
| 36 | % |
| 37 | */ |
| 38 | |
| 39 | /* |
| 40 | Include declarations. |
| 41 | */ |
| 42 | #include "MagickCore/studio.h" |
| 43 | #include "MagickCore/attribute.h" |
| 44 | #include "MagickCore/blob.h" |
| 45 | #include "MagickCore/blob-private.h" |
| 46 | #include "MagickCore/cache.h" |
| 47 | #include "MagickCore/color-private.h" |
| 48 | #include "MagickCore/colormap.h" |
| 49 | #include "MagickCore/colorspace.h" |
| 50 | #include "MagickCore/colorspace-private.h" |
| 51 | #include "MagickCore/exception.h" |
| 52 | #include "MagickCore/exception-private.h" |
| 53 | #include "MagickCore/image.h" |
| 54 | #include "MagickCore/image-private.h" |
| 55 | #include "MagickCore/list.h" |
| 56 | #include "MagickCore/magick.h" |
| 57 | #include "MagickCore/memory_.h" |
| 58 | #include "MagickCore/monitor.h" |
| 59 | #include "MagickCore/monitor-private.h" |
| 60 | #include "MagickCore/pixel-accessor.h" |
| 61 | #include "MagickCore/quantum-private.h" |
| 62 | #include "MagickCore/static.h" |
| 63 | #include "MagickCore/string_.h" |
| 64 | #include "MagickCore/module.h" |
| 65 | #include "MagickCore/utility.h" |
| 66 | |
| 67 | /* |
| 68 | Forward declarations. |
| 69 | */ |
| 70 | static MagickBooleanType |
| 71 | WriteRGFImage(const ImageInfo *,Image *,ExceptionInfo *); |
| 72 | |
| 73 | /* |
| 74 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 75 | % % |
| 76 | % % |
| 77 | % % |
| 78 | % R e a d X B M I m a g e % |
| 79 | % % |
| 80 | % % |
| 81 | % % |
| 82 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 83 | % |
| 84 | % ReadRGFImage() reads an RGF bitmap image file and returns it. It |
| 85 | % allocates the memory necessary for the new Image structure and returns a |
| 86 | % pointer to the new image. |
| 87 | % |
| 88 | % The format of the ReadRGFImage method is: |
| 89 | % |
| 90 | % Image *ReadRGFImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 91 | % |
| 92 | % A description of each parameter follows: |
| 93 | % |
| 94 | % o image_info: the image info. |
| 95 | % |
| 96 | % o exception: return any errors or warnings in this structure. |
| 97 | % |
| 98 | */ |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 99 | static Image *ReadRGFImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 100 | { |
| 101 | Image |
| 102 | *image; |
| 103 | |
cristy | 354b670 | 2014-01-24 17:41:49 +0000 | [diff] [blame] | 104 | int |
| 105 | bit; |
| 106 | |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 107 | MagickBooleanType |
| 108 | status; |
| 109 | |
| 110 | register ssize_t |
| 111 | i, |
| 112 | x; |
| 113 | |
| 114 | register Quantum |
| 115 | *q; |
| 116 | |
| 117 | register unsigned char |
| 118 | *p; |
| 119 | |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 120 | ssize_t |
| 121 | y; |
| 122 | |
| 123 | unsigned char |
cristy | 354b670 | 2014-01-24 17:41:49 +0000 | [diff] [blame] | 124 | byte, |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 125 | *data; |
| 126 | |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 127 | /* |
| 128 | Open image file. |
| 129 | */ |
| 130 | assert(image_info != (const ImageInfo *) NULL); |
| 131 | assert(image_info->signature == MagickSignature); |
| 132 | if (image_info->debug != MagickFalse) |
| 133 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 134 | image_info->filename); |
| 135 | assert(exception != (ExceptionInfo *) NULL); |
| 136 | assert(exception->signature == MagickSignature); |
| 137 | image=AcquireImage(image_info,exception); |
| 138 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| 139 | if (status == MagickFalse) |
| 140 | { |
| 141 | image=DestroyImageList(image); |
| 142 | return((Image *) NULL); |
| 143 | } |
| 144 | /* |
| 145 | Read RGF header. |
| 146 | */ |
| 147 | image->columns = (unsigned long) ReadBlobByte(image); |
| 148 | image->rows = (unsigned long) ReadBlobByte(image); |
| 149 | image->depth=8; |
| 150 | image->storage_class=PseudoClass; |
| 151 | image->colors=2; |
| 152 | /* |
| 153 | Initialize image structure. |
| 154 | */ |
| 155 | if (AcquireImageColormap(image,image->colors,exception) == MagickFalse) |
| 156 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 157 | /* |
| 158 | Initialize colormap. |
| 159 | */ |
| 160 | image->colormap[0].red=QuantumRange; |
| 161 | image->colormap[0].green=QuantumRange; |
| 162 | image->colormap[0].blue=QuantumRange; |
| 163 | image->colormap[1].red=(Quantum) 0; |
| 164 | image->colormap[1].green=(Quantum) 0; |
| 165 | image->colormap[1].blue=(Quantum) 0; |
| 166 | if (image_info->ping != MagickFalse) |
| 167 | { |
| 168 | (void) CloseBlob(image); |
| 169 | return(GetFirstImageInList(image)); |
| 170 | } |
cristy | acabb84 | 2014-12-14 23:36:33 +0000 | [diff] [blame] | 171 | status=SetImageExtent(image,image->columns,image->rows,exception); |
| 172 | if (status == MagickFalse) |
| 173 | return(DestroyImageList(image)); |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 174 | /* |
| 175 | Read hex image data. |
| 176 | */ |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 177 | data=(unsigned char *) AcquireQuantumMemory(image->rows,image->columns* |
| 178 | sizeof(*data)); |
| 179 | if (data == (unsigned char *) NULL) |
| 180 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 181 | p=data; |
| 182 | for (i=0; i < (ssize_t) (image->columns * image->rows); i++) |
| 183 | { |
| 184 | *p++=ReadBlobByte(image); |
| 185 | } |
| 186 | |
| 187 | /* |
| 188 | Convert RGF image to pixel packets. |
| 189 | */ |
| 190 | p=data; |
| 191 | for (y=0; y < (ssize_t) image->rows; y++) |
| 192 | { |
| 193 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 194 | if (q == (Quantum *) NULL) |
| 195 | break; |
| 196 | bit=0; |
| 197 | byte=0; |
| 198 | for (x=0; x < (ssize_t) image->columns; x++) |
| 199 | { |
| 200 | if (bit == 0) |
| 201 | byte=(size_t) (*p++); |
| 202 | SetPixelIndex(image,(Quantum) ((byte & 0x01) != 0 ? 0x01 : 0x00),q); |
| 203 | bit++; |
| 204 | byte>>=1; |
| 205 | if (bit == 8) |
| 206 | bit=0; |
| 207 | q+=GetPixelChannels(image); |
| 208 | } |
| 209 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 210 | break; |
| 211 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| 212 | image->rows); |
| 213 | if (status == MagickFalse) |
| 214 | break; |
| 215 | } |
| 216 | data=(unsigned char *) RelinquishMagickMemory(data); |
| 217 | (void) SyncImage(image,exception); |
| 218 | (void) CloseBlob(image); |
| 219 | return(GetFirstImageInList(image)); |
| 220 | } |
| 221 | |
| 222 | /* |
| 223 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 224 | % % |
| 225 | % % |
| 226 | % % |
| 227 | % R e g i s t e r R G F I m a g e % |
| 228 | % % |
| 229 | % % |
| 230 | % % |
| 231 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 232 | % |
| 233 | % RegisterRGFImage() adds attributes for the RGF image format to |
| 234 | % the list of supported formats. The attributes include the image format |
| 235 | % tag, a method to read and/or write the format, whether the format |
| 236 | % supports the saving of more than one frame to the same file or blob, |
| 237 | % whether the format supports native in-memory I/O, and a brief |
| 238 | % description of the format. |
| 239 | % |
| 240 | % The format of the RegisterRGFImage method is: |
| 241 | % |
| 242 | % size_t RegisterRGFImage(void) |
| 243 | % |
| 244 | */ |
| 245 | ModuleExport size_t RegisterRGFImage(void) |
| 246 | { |
| 247 | MagickInfo |
| 248 | *entry; |
| 249 | |
| 250 | entry=SetMagickInfo("RGF"); |
| 251 | entry->decoder=(DecodeImageHandler *) ReadRGFImage; |
| 252 | entry->encoder=(EncodeImageHandler *) WriteRGFImage; |
| 253 | entry->adjoin=MagickFalse; |
| 254 | entry->description=ConstantString( |
| 255 | "LEGO Mindstorms EV3 Robot Graphic Format (black and white)"); |
| 256 | entry->module=ConstantString("RGF"); |
| 257 | (void) RegisterMagickInfo(entry); |
| 258 | return(MagickImageCoderSignature); |
| 259 | } |
| 260 | |
| 261 | /* |
| 262 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 263 | % % |
| 264 | % % |
| 265 | % % |
| 266 | % U n r e g i s t e r R G F I m a g e % |
| 267 | % % |
| 268 | % % |
| 269 | % % |
| 270 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 271 | % |
| 272 | % UnregisterRGFImage() removes format registrations made by the |
| 273 | % RGF module from the list of supported formats. |
| 274 | % |
| 275 | % The format of the UnregisterRGFImage method is: |
| 276 | % |
| 277 | % UnregisterRGFImage(void) |
| 278 | % |
| 279 | */ |
| 280 | ModuleExport void UnregisterRGFImage(void) |
| 281 | { |
| 282 | (void) UnregisterMagickInfo("RGF"); |
| 283 | } |
| 284 | |
| 285 | /* |
| 286 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 287 | % % |
| 288 | % % |
| 289 | % % |
| 290 | % W r i t e R G F I m a g e % |
| 291 | % % |
| 292 | % % |
| 293 | % % |
| 294 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 295 | % |
| 296 | % WriteRGFImage() writes an image to a file in the X bitmap format. |
| 297 | % |
| 298 | % The format of the WriteRGFImage method is: |
| 299 | % |
| 300 | % MagickBooleanType WriteRGFImage(const ImageInfo *image_info, |
| 301 | % Image *image,ExceptionInfo *exception) |
| 302 | % |
| 303 | % A description of each parameter follows. |
| 304 | % |
| 305 | % o image_info: the image info. |
| 306 | % |
| 307 | % o image: The image. |
| 308 | % |
| 309 | % o exception: return any errors or warnings in this structure. |
| 310 | % |
| 311 | */ |
| 312 | static MagickBooleanType WriteRGFImage(const ImageInfo *image_info,Image *image, |
| 313 | ExceptionInfo *exception) |
| 314 | { |
| 315 | MagickBooleanType |
| 316 | status; |
| 317 | |
| 318 | register const Quantum |
| 319 | *p; |
| 320 | |
| 321 | register ssize_t |
| 322 | x; |
| 323 | |
| 324 | size_t |
| 325 | bit, |
| 326 | byte; |
| 327 | |
| 328 | ssize_t |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 329 | y; |
| 330 | |
| 331 | /* |
| 332 | Open output image file. |
| 333 | */ |
| 334 | assert(image_info != (const ImageInfo *) NULL); |
| 335 | assert(image_info->signature == MagickSignature); |
| 336 | assert(image != (Image *) NULL); |
| 337 | assert(image->signature == MagickSignature); |
| 338 | if (image->debug != MagickFalse) |
| 339 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 340 | assert(exception != (ExceptionInfo *) NULL); |
| 341 | assert(exception->signature == MagickSignature); |
| 342 | status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); |
| 343 | if (status == MagickFalse) |
cristy | af8d391 | 2014-02-21 14:50:33 +0000 | [diff] [blame] | 344 | return(status); |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 345 | (void) TransformImageColorspace(image,sRGBColorspace,exception); |
| 346 | if((image->columns > 255L) || (image->rows > 255L)) |
| 347 | ThrowWriterException(ImageError,"Dimensions must be less than 255x255"); |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 348 | /* |
| 349 | Write header (just the image dimensions) |
| 350 | */ |
cristy | d48a4a9 | 2013-09-05 15:54:43 +0000 | [diff] [blame] | 351 | (void) WriteBlobByte(image,image->columns & 0xff); |
| 352 | (void) WriteBlobByte(image,image->rows & 0xff); |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 353 | /* |
| 354 | Convert MIFF to bit pixels. |
| 355 | */ |
| 356 | (void) SetImageType(image,BilevelType,exception); |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 357 | x=0; |
| 358 | y=0; |
| 359 | for (y=0; y < (ssize_t) image->rows; y++) |
| 360 | { |
| 361 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| 362 | if (p == (const Quantum *) NULL) |
| 363 | break; |
cristy | 7037049 | 2013-09-06 14:52:28 +0000 | [diff] [blame] | 364 | bit=0; |
| 365 | byte=0; |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 366 | for (x=0; x < (ssize_t) image->columns; x++) |
| 367 | { |
| 368 | byte>>=1; |
| 369 | if (GetPixelLuma(image,p) < (QuantumRange/2)) |
| 370 | byte|=0x80; |
| 371 | bit++; |
| 372 | if (bit == 8) |
| 373 | { |
| 374 | /* |
| 375 | Write a bitmap byte to the image file. |
| 376 | */ |
dirk | 39c51eb | 2014-12-27 01:01:27 +0000 | [diff] [blame^] | 377 | (void) WriteBlobByte(image,(unsigned char) byte); |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 378 | bit=0; |
| 379 | byte=0; |
| 380 | } |
cristy | 7037049 | 2013-09-06 14:52:28 +0000 | [diff] [blame] | 381 | p+=GetPixelChannels(image); |
| 382 | } |
| 383 | if (bit != 0) |
dirk | 39c51eb | 2014-12-27 01:01:27 +0000 | [diff] [blame^] | 384 | (void) WriteBlobByte(image,(unsigned char) byte); |
cristy | 47c10da | 2013-08-26 23:06:51 +0000 | [diff] [blame] | 385 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| 386 | image->rows); |
| 387 | if (status == MagickFalse) |
| 388 | break; |
| 389 | } |
| 390 | (void) CloseBlob(image); |
| 391 | return(MagickTrue); |
| 392 | } |