| 263 | |
| 264 | |
| 265 | ILuint readScanline(ILubyte *scan, ILint width, CHANNEL *channel, ILint bytes) |
| 266 | { |
| 267 | ILint noCol; |
| 268 | ILint off[4]; |
| 269 | ILuint status=0; |
| 270 | |
| 271 | while (channel) { |
| 272 | noCol = 0; |
| 273 | if(channel->Chan & PIC_RED_CHANNEL) { |
| 274 | off[noCol] = 0; |
| 275 | noCol++; |
| 276 | } |
| 277 | if(channel->Chan & PIC_GREEN_CHANNEL) { |
| 278 | off[noCol] = 1; |
| 279 | noCol++; |
| 280 | } |
| 281 | if(channel->Chan & PIC_BLUE_CHANNEL) { |
| 282 | off[noCol] = 2; |
| 283 | noCol++; |
| 284 | } |
| 285 | if(channel->Chan & PIC_ALPHA_CHANNEL) { |
| 286 | off[noCol] = 3; |
| 287 | noCol++; |
| 288 | //@TODO: Find out if this is possible. |
| 289 | if (bytes == 3) // Alpha channel in a 24-bit image. Do not know what to do with this. |
| 290 | return 0; |
| 291 | } |
| 292 | |
| 293 | switch(channel->Type & 0x0F) |
| 294 | { |
| 295 | case PIC_UNCOMPRESSED: |
| 296 | status = channelReadRaw(scan, width, noCol, off, bytes); |
| 297 | break; |
| 298 | case PIC_PURE_RUN_LENGTH: |
| 299 | status = channelReadPure(scan, width, noCol, off, bytes); |
| 300 | break; |
| 301 | case PIC_MIXED_RUN_LENGTH: |
| 302 | status = channelReadMixed(scan, width, noCol, off, bytes); |
| 303 | break; |
| 304 | } |
| 305 | if (!status) |
| 306 | break; |
| 307 | |
| 308 | channel = (CHANNEL*)channel->Next; |
| 309 | } |
| 310 | return status; |
| 311 | } |
| 312 | |
| 313 | |
| 314 | ILboolean channelReadRaw(ILubyte *scan, ILint width, ILint noCol, ILint *off, ILint bytes) |
no test coverage detected