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comparison bpgenc.c @ 12:9b00d4206f99

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Implement support for one type of grayscale TIFF.
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 08 Dec 2016 22:41:01 +0200
parents e70eb0e6acd5
children df9f2fee4285
comparison
equal deleted inserted replaced
11:e70eb0e6acd5 12:9b00d4206f99
982 TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img_pmetric); 982 TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img_pmetric);
983 983
984 // Check basics 984 // Check basics
985 switch (img_pmetric) 985 switch (img_pmetric)
986 { 986 {
987 case PHOTOMETRIC_MINISBLACK:
988 img_format = BPG_FORMAT_GRAY;
989 color_space = BPG_CS_YCbCr;
990 if (img_spp != 1)
991 err_spp = 1;
992 break;
993
987 case PHOTOMETRIC_RGB: 994 case PHOTOMETRIC_RGB:
988 img_format = BPG_FORMAT_444; 995 img_format = BPG_FORMAT_444;
989 if (img_spp < 3) 996 if (img_spp < 3)
990 err_spp = 1; 997 err_spp = 1;
991 break; 998 break;
1103 else 1110 else
1104 { 1111 {
1105 gray8_to_gray(&cvt, 1112 gray8_to_gray(&cvt,
1106 (PIXEL *)(img->data[3] + y * img->linesize[3]), 1113 (PIXEL *)(img->data[3] + y * img->linesize[3]),
1107 ((uint8_t *) buf) + 3, img->w, 4); 1114 ((uint8_t *) buf) + 3, img->w, 4);
1115 }
1116 }
1117 break;
1118
1119 case PHOTOMETRIC_MINISBLACK:
1120 if (img_depth == 16)
1121 {
1122 luma16_to_gray(&cvt,
1123 (PIXEL *)(img->data[0] + y * img->linesize[0]),
1124 (uint16_t *) buf, img->w, img_spp);
1125
1126 if (img_alpha)
1127 {
1128 gray16_to_gray(&cvt,
1129 (PIXEL *)(img->data[1] + y * img->linesize[1]),
1130 ((uint16_t *) buf) + 1, img->w, 2);
1131 }
1132 }
1133 else
1134 {
1135 luma8_to_gray(&cvt,
1136 (PIXEL *)(img->data[0] + y * img->linesize[0]),
1137 (uint8_t *) buf, img->w, img_spp);
1138
1139 if (img_alpha)
1140 {
1141 gray8_to_gray(&cvt,
1142 (PIXEL *)(img->data[1] + y * img->linesize[1]),
1143 ((uint8_t *) buf) + 1, img->w, 2);
1108 } 1144 }
1109 } 1145 }
1110 break; 1146 break;
1111 } 1147 }
1112 } 1148 }