translators/bmp/BMPTranslator.cpp

167 // Preconditions: If bitsperpixel is zero, a division by zero
172 //				bitsperpixel, bitdepth of the image
179 get_padding(uint32 width, uint16 bitsperpixel)
183 	if (bitsperpixel > 8) {
184 		uint8 bytesPerPixel = bitsperpixel / 8;
187 		uint8 pixelsPerByte = 8 / bitsperpixel;
206 // with a width of width and a bit depth of bitsperpixel.
209 // Preconditions: If bitsperpixel is zero, a division by zero
214 //				bitsperpixel, bitdepth of the image
221 get_rowbytes(uint32 width, uint16 bitsperpixel)
224 	int32 padding = get_padding(width, bitsperpixel);
226 	if (bitsperpixel > 8) {
227 		uint8 bytesPerPixel = bitsperpixel / 8;
230 		uint8 pixelsPerByte = 8 / bitsperpixel;
349 		if ((msheader.bitsperpixel != 1 ||
351 			(msheader.bitsperpixel != 4 ||
353 			(msheader.bitsperpixel != 4 ||
355 			(msheader.bitsperpixel != 8 ||
357 			(msheader.bitsperpixel != 8 ||
359 			(msheader.bitsperpixel != 24 ||
361 			(msheader.bitsperpixel != 32 ||
377 				msheader.bitsperpixel);
396 			pmsheader->bitsperpixel = msheader.bitsperpixel;
432 		if (os2header.bitsperpixel != 1 &&
433 			os2header.bitsperpixel != 4 &&
434 			os2header.bitsperpixel != 8 &&
435 			os2header.bitsperpixel != 24)
444 				"%d bits)"), os2header.bitsperpixel);
457 			pmsheader->bitsperpixel = os2header.bitsperpixel;
466 			switch (pmsheader->bitsperpixel) {
473 						pmsheader->bitsperpixel) * abs(pmsheader->height);
483 					uint16 ncolors = 1 << pmsheader->bitsperpixel;
493 						pmsheader->bitsperpixel) * abs(pmsheader->height);
625 	int32 padding = get_padding(msheader.width, msheader.bitsperpixel);
627 		get_rowbytes(msheader.width, msheader.bitsperpixel);
814 	int32 padding = get_padding(msheader.width, msheader.bitsperpixel);
816 		get_rowbytes(msheader.width, msheader.bitsperpixel);
879 	uint8 pixelsPerByte = 8 / msheader.bitsperpixel;
881 		get_rowbytes(msheader.width, msheader.bitsperpixel);
1058 				msheader.bitsperpixel = 24;
1073 				msheader.bitsperpixel = 8;
1076 					msheader.bitsperpixel) * msheader.height;
1087 				msheader.bitsperpixel = 1;
1090 					msheader.bitsperpixel) * msheader.height;
1217 	int32 bmpBytesPerPixel = msheader.bitsperpixel / 8;
1219 		get_rowbytes(msheader.width, msheader.bitsperpixel);
1331 	uint16 pixelsPerByte = 8 / msheader.bitsperpixel;
1332 	uint16 bitsPerPixel = msheader.bitsperpixel;
1343 		get_rowbytes(msheader.width, msheader.bitsperpixel);
1460 	uint16 pixelsPerByte = 8 / msheader.bitsperpixel;
1461 	uint16 bitsPerPixel = msheader.bitsperpixel;
1719 		if (!frommsformat && (msheader.bitsperpixel == 1 ||
1720 			msheader.bitsperpixel == 4 || msheader.bitsperpixel == 8)) {
1722 			uint16 ncolors = 1 << msheader.bitsperpixel;
1763 		if (msheader.bitsperpixel == 1 ||
1764 			msheader.bitsperpixel == 4 ||
1765 			msheader.bitsperpixel == 8) {
1774 				msheader.colorsused = 1 << msheader.bitsperpixel;
1814 		switch (msheader.bitsperpixel) {