Add tools/export-drpc-faces.c

tools/export-drpc-faces.c

+// DR. ROBOTNIK'S RING RACERS
+//-----------------------------------------------------------------------------
+// Copyright (C) 2024 by James Robert Roman
+//
+// This program is free software distributed under the
+// terms of the GNU General Public License, version 2.
+// See the 'LICENSE' file for more details.
+//-----------------------------------------------------------------------------
+
+// #!/bin/sh
+// for f in /tmp/rpcphotos/*.dat; do
+// 	convert -size 16x16 -depth 8 "rgb:$f" \
+// 		-crop 14x14+1+1 -scale 518x518 \
+// 		"/tmp/rpcphotos/$(basename $f .dat).png"
+// done
+
+static void expo(size_t skin)
+{
+	lumpnum_t lumpnum = skins[skin].sprites[SPR2_XTRA].spriteframes[0].lumppat[0];
+	patch_t *pat = W_CacheSoftwarePatchNum(lumpnum, PU_STATIC);
+	FILE *fp = fopen(va("/tmp/rpcphotos/%s.dat", skins[skin].name), "w");
+	int w = pat->width;
+	int h = pat->height;
+	int size = w * h * 3;
+	UINT8 *bitmap = calloc(1, size);
+	const UINT8 *colormap = R_GetTranslationColormap(TC_DEFAULT, skins[skin].prefcolor, GTC_CACHE);
+	for (int i = 0; i < w * h; ++i)
+	{
+		UINT8 *p = Picture_GetPatchPixel(pat, PICFMT_PATCH, i % w, i / h, 0);
+		if (p)
+		{
+			byteColor_t col = pMasterPalette[colormap[*p]].s;
+			bitmap[i * 3] = col.red;
+			bitmap[i * 3 + 1] = col.green;
+			bitmap[i * 3 + 2] = col.blue;
+		}
+	}
+	fwrite(bitmap, 1, size, fp);
+	fclose(fp);
+	free(bitmap);
+}