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comparison tools/lib64fmts.c @ 1912:8d006508e6c1

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Implement write support for ECI Graphic Editor 1.0 packed format.
author Matti Hamalainen <ccr@tnsp.org>
date Wed, 27 Jun 2018 13:13:57 +0300
parents efe6e88a02f3
children 788cfc7096f3
comparison
equal deleted inserted replaced
1911:794cbb938a58 1912:8d006508e6c1
966 if ((res = dmDecodeGenericRLEAlloc( 966 if ((res = dmDecodeGenericRLEAlloc(
967 &mem, dmGrowBufConstCopyOffs(&tmp, buf, 1), &cfg)) == DMERR_OK) 967 &mem, dmGrowBufConstCopyOffs(&tmp, buf, 1), &cfg)) == DMERR_OK)
968 res = dmC64DecodeGenericBMP(img, &mem, fmt); 968 res = dmC64DecodeGenericBMP(img, &mem, fmt);
969 969
970 dmGrowBufFree(&mem); 970 dmGrowBufFree(&mem);
971 return res;
972 }
973
974
975 static int fmtEncodeECIPacked(DMGrowBuf *buf, const DMC64Image *img, const DMC64ImageFormat *fmt)
976 {
977 int res;
978 DMGrowBuf tmp;
979 DMCompParams cfg;
980
981 // Encode the data to temp buffer
982 if ((res = dmC64EncodeGenericBMP(TRUE, &tmp, img, fmt)) != DMERR_OK)
983 goto out;
984
985 // Analyze and setup RLE
986 cfg.func = fmt->name;
987 cfg.type = DM_COMP_RLE_MARKER;
988 cfg.flags = DM_RLE_BYTE_RUNS | DM_RLE_ORDER_1;
989 cfg.rleMinCountB = 4;
990 cfg.rleMaxCountB = 255;
991
992 dmGenericRLEAnalyze(&tmp, &cfg);
993
994 // Add the header bits
995 if (!dmGrowBufPutU8(buf, cfg.rleMarkerB))
996 {
997 res = DMERR_MALLOC;
998 goto out;
999 }
1000
1001 // And now RLE compress the data to the existing buffer
1002 res = dmEncodeGenericRLE(buf, &tmp, &cfg);
1003
1004 out:
1005 dmGrowBufFree(&tmp);
971 return res; 1006 return res;
972 } 1007 }
973 1008
974 1009
975 // 1010 //
1618 NULL, NULL, 1653 NULL, NULL,
1619 { }, &dmC64CommonFormats[7] 1654 { }, &dmC64CommonFormats[7]
1620 }, 1655 },
1621 1656
1622 { 1657 {
1623 "ecp", "ECI Graphic Editor 1.0 (packed)", 0x4000, 0, DM_FMT_RD, 1658 "ecp", "ECI Graphic Editor 1.0 (packed)", 0x4000, 0, DM_FMT_RDWR,
1624 fmtProbeECIPacked, 1659 fmtProbeECIPacked,
1625 fmtDecodeECIPacked, NULL, 1660 fmtDecodeECIPacked, fmtEncodeECIPacked,
1626 { }, &dmC64CommonFormats[7] 1661 { }, &dmC64CommonFormats[7]
1627 }, 1662 },
1628 1663
1629 { 1664 {
1630 "xx1", "Unknown $2000 format (unpacked)", 0x2000, 10242, DM_FMT_RDWR, 1665 "xx1", "Unknown $2000 format (unpacked)", 0x2000, 10242, DM_FMT_RDWR,