Mercurial > hg > dmlib
changeset 811:aebc2f8b2c2d
Add some comments.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Fri, 16 May 2014 03:01:51 +0300 |
| parents | cbe263ad963c |
| children | 1e5cf1144f36 |
| files | lib64gfx.c |
| diffstat | 1 files changed, 13 insertions(+), 3 deletions(-) [+] |
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--- a/lib64gfx.c Thu May 15 02:05:53 2014 +0300 +++ b/lib64gfx.c Fri May 16 03:01:51 2014 +0300 @@ -562,11 +562,14 @@ size_t size; int res; + // Check operation validity if ((res = dmC64SanityCheckEncDecOp(i, op)) != DMERR_OK) return res; + // Check size size = (op->size == 0) ? dmC64DefaultSizes[op->type] : op->size; - + + // Do we need to reallocate some more space? if (op->offs + size > len) { dmError("Decode out of bounds, op #%d type=%d, offs=%d ($%04x), " @@ -574,9 +577,10 @@ i, op->type, op->offs, op->offs, op->bank, size, size, len, len); return DMERR_INVALID_DATA; } - + src = buf + op->offs; - + + // Perform operation switch (op->type) { case DT_COLOR_RAM: memcpy(img->color[op->bank], src, size); break; @@ -638,11 +642,14 @@ Uint8 *dst = 2 + buf + op->offs; size_t size; + // Check operation validity if ((res = dmC64SanityCheckEncDecOp(i, op)) != DMERR_OK) goto error; + // Check size size = (op->size == 0) ? dmC64DefaultSizes[op->type] : op->size; + // Do we need to reallocate some more space? if (2 + op->offs + size > allocated) { if ((buf = dmRealloc(buf, allocated)) == NULL) @@ -660,6 +667,7 @@ if (fmt->size == 0 && op->offs + size + 2 > *plen) *plen = op->offs + size + 2; + // Perform operation switch (op->type) { case DT_COLOR_RAM: memcpy(dst, img->color[op->bank], size); break; @@ -723,6 +731,7 @@ if ((src->type & D64_FMT_MC) == D64_FMT_HIRES) { + // Hi-res bitmap for (xc = 0; xc < dst->width; xc++) { const int x = xc / 8; @@ -738,6 +747,7 @@ } else { + // Multicolor variants const int wdivisor = doubleMC ? 2 : 1, divisor = doubleMC ? 4 : 8;