dmlib: src/dmzlib.c comparison

Comments, cosmetics.

author	Matti Hamalainen <ccr@tnsp.org>
date	Mon, 02 Mar 2015 04:17:30 +0200
parents	e98bc627ad08
children	7bf421248190

comparison

equal deleted inserted replaced

-:e98bc627ad08
+:97ccd6d972ff
 }
 *outBuffer++ = (Uint8) z;
 }
 else
 {
-Uint8 *p;
+Uint8 *ptr;
 int len, dist;
 if (z == 256)
 {
 ctx->outBuffer = outBuffer;
 return DMERR_OK;
 {
 return dmErrorDBG(DMERR_DATA_ERROR,
 "Bad Huffman block distance.\n");
 }
+// Check if output buffer needs to expand
 if (outBuffer + len > ctx->outBufferEnd)
 {
 if ((ret = dmZLibExpand(ctx, outBuffer, len)) != DMERR_OK)
 return ret;
 outBuffer = ctx->outBuffer;
 }
-p = (Uint8 *) (outBuffer - dist);
+ptr = outBuffer - dist;
 if (dist == 1)
 {                   // run of one byte; common in images.
-Uint8 v = *p;
+Uint8 v = *ptr;
 do { *outBuffer++ = v; } while (--len);
 }
 else
 {
-do { *outBuffer++ = *p++; } while (--len);
+do { *outBuffer++ = *ptr++; } while (--len);
 }
 }
 }
 }
 {
 return dmErrorDBG(DMERR_BOUNDS,
 "Read past buffer, probably corrupt compressed data.\n");
 }
+// Check if output buffer needs to expand
 if (ctx->outBuffer + len > ctx->outBufferEnd &&
 (ret = dmZLibExpand(ctx, ctx->outBuffer, len)) != DMERR_OK)
 {
 return dmErrorDBG(DMERR_DATA_ERROR,
 "Could not expand output buffer: %d, %s\n",
 ret, dmErrorStr(ret));
 }
+// Copy uncompressed data
 memcpy(ctx->outBuffer, ctx->inBuffer, len);
 ctx->inBuffer  += len;
 ctx->outBuffer += len;
 }

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