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changeset 2187:ec47c60d26e2

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Improve Crest Super Hires FLI probing.
author Matti Hamalainen <ccr@tnsp.org>
date Wed, 12 Jun 2019 21:47:29 +0300
parents dc8a443accdf
children 9b7d5e219d4b
files tools/lib64fmts.c
diffstat 1 files changed, 20 insertions(+), 6 deletions(-) [+]
line wrap: on
line diff
--- a/tools/lib64fmts.c	Wed Jun 12 21:30:58 2019 +0300
+++ b/tools/lib64fmts.c	Wed Jun 12 21:47:29 2019 +0300
@@ -1222,21 +1222,35 @@
 }
 
 
-static const Uint8 fmtCrestSHFLI_MagicID_1[] =
+#define DM_CREST_SHFLI_BANKS 8
+#define DM_CREST_SHFLI_PTRS 8
+static const Uint8 fmtCrestSHFLI_Sprite_pointers[DM_CREST_SHFLI_BANKS][DM_CREST_SHFLI_PTRS] =
 {
-    0x80, 0x84, 0x85, 0x89, 0x8A, 0x8E, 0x8F, 0x93
+    { 0x80, 0x84, 0x85, 0x89, 0x8A, 0x8E, 0x8F, 0x93 },
+    { 0x94, 0x98, 0x99, 0x9D, 0x9E, 0xA2, 0xA3, 0xA7 },
+    { 0xA8, 0xAC, 0xAD, 0xB1, 0xB2, 0xB6, 0xB7, 0xBB },
+    { 0xBC, 0xC0, 0xC1, 0xC5, 0xC6, 0xCA, 0xCB, 0xCF },
+    { 0xD0, 0xD4, 0xD5, 0xD9, 0xDA, 0xDE, 0xDF, 0xE3 },
+    { 0xE4, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE },
+    { 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6 },
+    { 0xF7, 0x1E, 0x2E, 0x3E, 0x4E, 0x5E, 0x6E, 0x7E },
 };
 
 
 static int fmtProbeCrestSHFLI(const DMGrowBuf *buf, const DMC64ImageFormat *fmt)
 {
+    // Unpacked variant
     if (buf->len == fmt->size &&
         dmCompareAddr16(buf, 0, fmt->addr))
     {
-        if (DM_MEMCMP_SIZE(buf->data + 0x03f8 + 2, fmtCrestSHFLI_MagicID_1) == 0)
-            return DM_PROBE_SCORE_MAX;
-        else
-            return DM_PROBE_SCORE_MAYBE;
+        int score = DM_PROBE_SCORE_MAYBE;
+        for (int nbank = 0; nbank < DM_CREST_SHFLI_BANKS; nbank++)
+        {
+            if (memcmp(buf->data + 2 + (nbank * 0x0400) + 0x03f8,
+                fmtCrestSHFLI_Sprite_pointers[nbank], DM_CREST_SHFLI_PTRS) == 0)
+                score += DM_PROBE_SCORE_GOOD;
+        }
+        return score;
     }
 
     return DM_PROBE_SCORE_FALSE;