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comparison tools/lib64gfx.c @ 1774:88354355b8e1

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Move dmC64ProbeBMP() to more logical place in the source.
author Matti Hamalainen <ccr@tnsp.org>
date Tue, 12 Jun 2018 15:36:00 +0300
parents 52e31cfc1e36
children 4e4d54135baf
comparison
equal deleted inserted replaced
1773:9336bfb5b6d1 1774:88354355b8e1
671 int res; 671 int res;
672 if ((res = dmGrowBufAlloc(dst, BUF_SIZE_INITIAL, BUF_SIZE_GROW)) != DMERR_OK) 672 if ((res = dmGrowBufAlloc(dst, BUF_SIZE_INITIAL, BUF_SIZE_GROW)) != DMERR_OK)
673 return res; 673 return res;
674 674
675 return dmEncodeGenericRLE(dst, src, cfg); 675 return dmEncodeGenericRLE(dst, src, cfg);
676 }
677
678
679 // Perform probing of the given data buffer, trying to determine
680 // if it contains a supported "C64" image format. Returns the
681 // "probe score", see libgfx.h for list of values. If a match
682 // is found, pointer to format description is set to *pfmt.
683 int dmC64ProbeBMP(const Uint8 *buf, const size_t len, const DMC64ImageFormat **pfmt)
684 {
685 int scoreMax = DM_PROBE_SCORE_FALSE, scoreIndex = -1;
686
687 for (int i = 0; i < ndmC64ImageFormats; i++)
688 {
689 const DMC64ImageFormat *fmt = &dmC64ImageFormats[i];
690 int score = DM_PROBE_SCORE_FALSE;
691 if (fmt->probe == NULL && fmt->size > 0 && fmt->addr > 0)
692 {
693 // Generic probe just checks matching size and load address
694 if (len == fmt->size && dmCompareAddr16(buf, 0, fmt->addr))
695 score = DM_PROBE_SCORE_GOOD;
696 }
697 else
698 if (fmt->probe != NULL)
699 score = fmt->probe(buf, len, fmt);
700
701 if (score > scoreMax)
702 {
703 scoreMax = score;
704 scoreIndex = i;
705 }
706 }
707
708 if (scoreIndex >= 0)
709 {
710 *pfmt = &dmC64ImageFormats[scoreIndex];
711 return scoreMax;
712 }
713 else
714 return DM_PROBE_SCORE_FALSE;
715 } 676 }
716 677
717 678
718 int dmC64SanityCheckEncDecOp(const int i, const DMC64EncDecOp *op, const DMC64Image *img) 679 int dmC64SanityCheckEncDecOp(const int i, const DMC64EncDecOp *op, const DMC64Image *img)
719 { 680 {
1472 1433
1473 err: 1434 err:
1474 dmGrowBufFree(buf); 1435 dmGrowBufFree(buf);
1475 return res; 1436 return res;
1476 } 1437 }
1438
1439
1440 // Perform probing of the given data buffer, trying to determine
1441 // if it contains a supported "C64" image format. Returns the
1442 // "probe score", see libgfx.h for list of values. If a match
1443 // is found, pointer to format description is set to *pfmt.
1444 int dmC64ProbeBMP(const Uint8 *buf, const size_t len, const DMC64ImageFormat **pfmt)
1445 {
1446 int scoreMax = DM_PROBE_SCORE_FALSE, scoreIndex = -1;
1447
1448 for (int i = 0; i < ndmC64ImageFormats; i++)
1449 {
1450 const DMC64ImageFormat *fmt = &dmC64ImageFormats[i];
1451 int score = DM_PROBE_SCORE_FALSE;
1452 if (fmt->probe == NULL && fmt->size > 0 && fmt->addr > 0)
1453 {
1454 // Generic probe just checks matching size and load address
1455 if (len == fmt->size && dmCompareAddr16(buf, 0, fmt->addr))
1456 score = DM_PROBE_SCORE_GOOD;
1457 }
1458 else
1459 if (fmt->probe != NULL)
1460 score = fmt->probe(buf, len, fmt);
1461
1462 if (score > scoreMax)
1463 {
1464 scoreMax = score;
1465 scoreIndex = i;
1466 }
1467 }
1468
1469 if (scoreIndex >= 0)
1470 {
1471 *pfmt = &dmC64ImageFormats[scoreIndex];
1472 return scoreMax;
1473 }
1474 else
1475 return DM_PROBE_SCORE_FALSE;
1476 }