Preliminary smush playback support.

svn-id: r3669

1 files changed, 561 insertions, 0 deletions

diff --git a/insane.cpp b/insane.cpp
new file mode 100644
index 0000000000..e23b9685fe
--- /dev/null
+++ b/insane.cpp
@@ -0,0 +1,561 @@
+// insane.cpp : Defines the entry point for the console application.
+//
+
+#define NEED_SDL_HEADERS
+
+#include "stdafx.h"
+#include "scumm.h"
+
+#define SWAP2(a) ((((a)>>24)&0xFF) | (((a)>>8)&0xFF00) | (((a)<<8)&0xFF0000) | (((a)<<24)&0xFF000000))
+
+void invalidblock(uint32 tag) {
+	error("Encountered invalid block %c%c%c%c", tag>>24, tag>>16, tag>>8, tag);
+}
+
+uint32 SmushPlayer::nextBE32() {
+	uint32 a = *((uint32*)_cur);
+	_cur += sizeof(uint32);
+	return SWAP2(a);
+}
+
+void SmushPlayer::fileRead(void *mem, int len) {
+	if (fread(mem, len,1, _in) != 1)
+		error("EOF while reading");
+}
+
+uint32 SmushPlayer::fileReadBE32() {
+	uint32 number;
+	fileRead(&number, sizeof(number));
+	return SWAP2(number);
+}
+
+uint32 SmushPlayer::fileReadLE32() {
+	uint32 number;
+	fileRead(&number, sizeof(number));
+	return number;
+}
+
+void SmushPlayer::openFile(byte* fileName) {
+	byte buf[100];
+	sprintf((char*)buf,"%s%s%s",(char*)sm->_gameDataPath,(char*)sm->_videoPath,(char*)fileName);
+	_in = fopen((char*)buf, "rb");
+}
+
+void SmushPlayer::nextBlock() {
+	_blockTag = fileReadBE32();
+	_blockSize = fileReadBE32();
+
+	if (_block != NULL)
+		free(_block);
+
+	_block = (byte*)malloc(_blockSize);
+	if (_block==NULL)
+		error("cannot allocate memory");
+
+	fileRead(_block, _blockSize);
+}
+
+bool SmushPlayer::parseTag() {
+	switch(nextBlock(), _blockTag) {
+	case 'AHDR':
+		parseAHDR();
+		break;
+	case 'FRME':
+		parseFRME();
+		break;
+	default:
+		invalidblock(_blockTag);
+	}
+	return true;
+}
+
+void SmushPlayer::parseAHDR() {
+//	memcpy(_fluPalette, _block, 0x300);
+	_paletteChanged = true;
+
+	printf("parse AHDR\n");
+}
+
+void SmushPlayer::parseNPAL() {
+	memcpy(_fluPalette, _cur, 0x300);
+	_paletteChanged = true;
+}
+
+void codec1(CodecData *cd) {
+	uint y = cd->y;
+	byte *src = cd->src;
+	byte *dest= cd->out;
+	uint h = cd->h;
+
+	if (!h || !cd->w)
+		return;
+
+	dest += cd->y * cd->pitch;
+
+	do {
+		byte color;
+		uint len, num;
+		uint x;
+		if ((uint)y >= (uint)cd->outheight) {
+			src += *(uint16*)(src) + 2;
+			continue;
+		}
+		len = cd->w;
+		x = cd->x;
+
+		src += 2;
+		do {
+			byte code = *src++;
+			num = (code>>1)+1;
+			if (num>len) num=len;
+			len -= num;
+			if (code&1) {
+				color = *src++;
+//				if ((color = *src++)!=0) {
+					do {
+						if ((uint)x < (uint)cd->outwidth)
+							dest[x] = color;
+					} while (++x,--num);
+//				} else {
+//					x += num;
+//				}
+			} else {
+				do {
+					color = *src++;
+					if (/*(color=*src++) != 0 &&*/ (uint)x < (uint)cd->outwidth)
+						dest[x] = color;
+				} while (++x,--num);
+			}
+		} while (len);
+	} while (dest += cd->pitch,y++,--h);
+}
+
+void codec37_bompdepack(byte *dst, byte *src, int len) {
+	byte code;
+	byte color;
+	int num;
+
+	do {
+		code = *src++;
+		if (code & 1) {
+			num = (code>>1) + 1;
+			color = *src++;
+			memset(dst, color, num);
+			dst += num;
+		} else {
+			num = (code>>1) + 1;
+			memcpy(dst,src,num);
+			dst += num;
+			src += num;
+		}
+	} while (len -= num);
+}
+
+void codec37_proc5(byte *dst, byte *src, int next_offs, int bw, int bh, int pitch, int16 *table) {
+	byte code, *tmp;
+	int i;
+	
+	if (pitch != 320)
+		error("invalid pitch");
+
+	do {
+		i = bw;
+		do {
+			code = *src++;
+			if (code==0xFF) {
+				*(uint32*)(dst+0) = ((uint32*)src)[0];
+				*(uint32*)(dst+320) = ((uint32*)src)[1];
+				*(uint32*)(dst+320*2) = ((uint32*)src)[2];
+				*(uint32*)(dst+320*3) = ((uint32*)src)[3];
+				src += 16;
+				dst += 4;
+			} else {
+				tmp = dst + table[code] + next_offs;
+				*(uint32*)(dst+0) = *(uint32*)(tmp);
+				*(uint32*)(dst+320) = *(uint32*)(tmp+320);
+				*(uint32*)(dst+320*2) = *(uint32*)(tmp+320*2);
+				*(uint32*)(dst+320*3) = *(uint32*)(tmp+320*3);
+				dst += 4;
+			}
+		} while(--i);
+		dst += 320*4 - 320;
+	} while (--bh);
+}	
+
+static const int8 maketable_bytes[] = {
+0, 0, 1, 0, 2, 0, 3, 0, 5, 0, 8, 0, 13, 0, 21, 0,
+-1, 0, -2, 0, -3, 0, -5, 0, -8, 0, -13, 0, -17, 0, -21, 0,
+0, 1, 1, 1, 2, 1, 3, 1, 5, 1, 8, 1, 13, 1, 21, 1,
+-1, 1, -2, 1, -3, 1, -5, 1, -8, 1, -13, 1, -17, 1, -21, 1,
+0, 2, 1, 2, 2, 2, 3, 2, 5, 2, 8, 2, 13, 2, 21, 2,
+-1, 2, -2, 2, -3, 2, -5, 2, -8, 2, -13, 2, -17, 2, -21, 2,
+0, 3, 1, 3, 2, 3, 3, 3, 5, 3, 8, 3, 13, 3, 21, 3,
+-1, 3, -2, 3, -3, 3, -5, 3, -8, 3, -13, 3, -17, 3, -21, 3,
+0, 5, 1, 5, 2, 5, 3, 5, 5, 5, 8, 5, 13, 5, 21, 5,
+-1, 5, -2, 5, -3, 5, -5, 5, -8, 5, -13, 5, -17, 5, -21, 5,
+0, 8, 1, 8, 2, 8, 3, 8, 5, 8, 8, 8, 13, 8, 21, 8,
+-1, 8, -2, 8, -3, 8, -5, 8, -8, 8, -13, 8, -17, 8, -21, 8,
+0, 13, 1, 13, 2, 13, 3, 13, 5, 13, 8, 13, 13, 13, 21, 13,
+-1, 13, -2, 13, -3, 13, -5, 13, -8, 13, -13, 13, -17, 13, -21, 13,
+0, 21, 1, 21, 2, 21, 3, 21, 5, 21, 8, 21, 13, 21, 21, 21,
+-1, 21, -2, 21, -3, 21, -5, 21, -8, 21, -13, 21, -17, 21, -21, 21,
+0, -1, 1, -1, 2, -1, 3, -1, 5, -1, 8, -1, 13, -1, 21, -1,
+-1, -1, -2, -1, -3, -1, -5, -1, -8, -1, -13, -1, -17, -1, -21, -1,
+0, -2, 1, -2, 2, -2, 3, -2, 5, -2, 8, -2, 13, -2, 21, -2,
+-1, -2, -2, -2, -3, -2, -5, -2, -8, -2, -13, -2, -17, -2, -21, -2,
+0, -3, 1, -3, 2, -3, 3, -3, 5, -3, 8, -3, 13, -3, 21, -3,
+-1, -3, -2, -3, -3, -3, -5, -3, -8, -3, -13, -3, -17, -3, -21, -3,
+0, -5, 1, -5, 2, -5, 3, -5, 5, -5, 8, -5, 13, -5, 21, -5,
+-1, -5, -2, -5, -3, -5, -5, -5, -8, -5, -13, -5, -17, -5, -21, -5,
+0, -8, 1, -8, 2, -8, 3, -8, 5, -8, 8, -8, 13, -8, 21, -8,
+-1, -8, -2, -8, -3, -8, -5, -8, -8, -8, -13, -8, -17, -8, -21, -8,
+0, -13, 1, -13, 2, -13, 3, -13, 5, -13, 8, -13, 13, -13, 21, -13,
+-1, -13, -2, -13, -3, -13, -5, -13, -8, -13, -13, -13, -17, -13, -21, -13,
+0, -17, 1, -17, 2, -17, 3, -17, 5, -17, 8, -17, 13, -17, 21, -17,
+-1, -17, -2, -17, -3, -17, -5, -17, -8, -17, -13, -17, -17, -17, -21, -17,
+0, -21, 1, -21, 2, -21, 3, -21, 5, -21, 8, -21, 13, -21, 21, -21,
+-1, -21, -2, -21, -3, -21, -5, -21, -8, -21, -13, -21, -17, -21, 0, 0,
+-8, -29, 8, -29, -18, -25, 17, -25, 0, -23, -6, -22, 6, -22, -13, -19,
+12, -19, 0, -18, 25, -18, -25, -17, -5, -17, 5, -17, -10, -15, 10, -15,
+0, -14, -4, -13, 4, -13, 19, -13, -19, -12, -8, -11, -2, -11, 0, -11,
+2, -11, 8, -11, -15, -10, -4, -10, 4, -10, 15, -10, -6, -9, -1, -9,
+1, -9, 6, -9, -29, -8, -11, -8, -8, -8, -3, -8, 3, -8, 8, -8,
+11, -8, 29, -8, -5, -7, -2, -7, 0, -7, 2, -7, 5, -7, -22, -6,
+-9, -6, -6, -6, -3, -6, -1, -6, 1, -6, 3, -6, 6, -6, 9, -6,
+22, -6, -17, -5, -7, -5, -4, -5, -2, -5, 0, -5, 2, -5, 4, -5,
+7, -5, 17, -5, -13, -4, -10, -4, -5, -4, -3, -4, -1, -4, 0, -4,
+1, -4, 3, -4, 5, -4, 10, -4, 13, -4, -8, -3, -6, -3, -4, -3,
+-3, -3, -2, -3, -1, -3, 0, -3, 1, -3, 2, -3, 4, -3, 6, -3,
+8, -3, -11, -2, -7, -2, -5, -2, -3, -2, -2, -2, -1, -2, 0, -2,
+1, -2, 2, -2, 3, -2, 5, -2, 7, -2, 11, -2, -9, -1, -6, -1,
+-4, -1, -3, -1, -2, -1, -1, -1, 0, -1, 1, -1, 2, -1, 3, -1,
+4, -1, 6, -1, 9, -1, -31, 0, -23, 0, -18, 0, -14, 0, -11, 0,
+-7, 0, -5, 0, -4, 0, -3, 0, -2, 0, -1, 0, 0, -31, 1, 0,
+2, 0, 3, 0, 4, 0, 5, 0, 7, 0, 11, 0, 14, 0, 18, 0,
+23, 0, 31, 0, -9, 1, -6, 1, -4, 1, -3, 1, -2, 1, -1, 1,
+0, 1, 1, 1, 2, 1, 3, 1, 4, 1, 6, 1, 9, 1, -11, 2,
+-7, 2, -5, 2, -3, 2, -2, 2, -1, 2, 0, 2, 1, 2, 2, 2,
+3, 2, 5, 2, 7, 2, 11, 2, -8, 3, -6, 3, -4, 3, -2, 3,
+-1, 3, 0, 3, 1, 3, 2, 3, 3, 3, 4, 3, 6, 3, 8, 3,
+-13, 4, -10, 4, -5, 4, -3, 4, -1, 4, 0, 4, 1, 4, 3, 4,
+5, 4, 10, 4, 13, 4, -17, 5, -7, 5, -4, 5, -2, 5, 0, 5,
+2, 5, 4, 5, 7, 5, 17, 5, -22, 6, -9, 6, -6, 6, -3, 6,
+-1, 6, 1, 6, 3, 6, 6, 6, 9, 6, 22, 6, -5, 7, -2, 7,
+0, 7, 2, 7, 5, 7, -29, 8, -11, 8, -8, 8, -3, 8, 3, 8,
+8, 8, 11, 8, 29, 8, -6, 9, -1, 9, 1, 9, 6, 9, -15, 10,
+-4, 10, 4, 10, 15, 10, -8, 11, -2, 11, 0, 11, 2, 11, 8, 11,
+19, 12, -19, 13, -4, 13, 4, 13, 0, 14, -10, 15, 10, 15, -5, 17,
+5, 17, 25, 17, -25, 18, 0, 18, -12, 19, 13, 19, -6, 22, 6, 22,
+0, 23, -17, 25, 18, 25, -8, 29, 8, 29, 0, 31, 0, 0, -6, -22,
+6, -22, -13, -19, 12, -19, 0, -18, -5, -17, 5, -17, -10, -15, 10, -15,
+0, -14, -4, -13, 4, -13, 19, -13, -19, -12, -8, -11, -2, -11, 0, -11,
+2, -11, 8, -11, -15, -10, -4, -10, 4, -10, 15, -10, -6, -9, -1, -9,
+1, -9, 6, -9, -11, -8, -8, -8, -3, -8, 0, -8, 3, -8, 8, -8,
+11, -8, -5, -7, -2, -7, 0, -7, 2, -7, 5, -7, -22, -6, -9, -6,
+-6, -6, -3, -6, -1, -6, 1, -6, 3, -6, 6, -6, 9, -6, 22, -6,
+-17, -5, -7, -5, -4, -5, -2, -5, -1, -5, 0, -5, 1, -5, 2, -5,
+4, -5, 7, -5, 17, -5, -13, -4, -10, -4, -5, -4, -3, -4, -2, -4,
+-1, -4, 0, -4, 1, -4, 2, -4, 3, -4, 5, -4, 10, -4, 13, -4,
+-8, -3, -6, -3, -4, -3, -3, -3, -2, -3, -1, -3, 0, -3, 1, -3,
+2, -3, 3, -3, 4, -3, 6, -3, 8, -3, -11, -2, -7, -2, -5, -2,
+-4, -2, -3, -2, -2, -2, -1, -2, 0, -2, 1, -2, 2, -2, 3, -2,
+4, -2, 5, -2, 7, -2, 11, -2, -9, -1, -6, -1, -5, -1, -4, -1,
+-3, -1, -2, -1, -1, -1, 0, -1, 1, -1, 2, -1, 3, -1, 4, -1,
+5, -1, 6, -1, 9, -1, -23, 0, -18, 0, -14, 0, -11, 0, -7, 0,
+-5, 0, -4, 0, -3, 0, -2, 0, -1, 0, 0, -23, 1, 0, 2, 0,
+3, 0, 4, 0, 5, 0, 7, 0, 11, 0, 14, 0, 18, 0, 23, 0,
+-9, 1, -6, 1, -5, 1, -4, 1, -3, 1, -2, 1, -1, 1, 0, 1,
+1, 1, 2, 1, 3, 1, 4, 1, 5, 1, 6, 1, 9, 1, -11, 2,
+-7, 2, -5, 2, -4, 2, -3, 2, -2, 2, -1, 2, 0, 2, 1, 2,
+2, 2, 3, 2, 4, 2, 5, 2, 7, 2, 11, 2, -8, 3, -6, 3,
+-4, 3, -3, 3, -2, 3, -1, 3, 0, 3, 1, 3, 2, 3, 3, 3,
+4, 3, 6, 3, 8, 3, -13, 4, -10, 4, -5, 4, -3, 4, -2, 4,
+-1, 4, 0, 4, 1, 4, 2, 4, 3, 4, 5, 4, 10, 4, 13, 4,
+-17, 5, -7, 5, -4, 5, -2, 5, -1, 5, 0, 5, 1, 5, 2, 5,
+4, 5, 7, 5, 17, 5, -22, 6, -9, 6, -6, 6, -3, 6, -1, 6,
+1, 6, 3, 6, 6, 6, 9, 6, 22, 6, -5, 7, -2, 7, 0, 7,
+2, 7, 5, 7, -11, 8, -8, 8, -3, 8, 0, 8, 3, 8, 8, 8,
+11, 8, -6, 9, -1, 9, 1, 9, 6, 9, -15, 10, -4, 10, 4, 10,
+15, 10, -8, 11, -2, 11, 0, 11, 2, 11, 8, 11, 19, 12, -19, 13,
+-4, 13, 4, 13, 0, 14, -10, 15, 10, 15, -5, 17, 5, 17, 0, 18,
+-12, 19, 13, 19, -6, 22, 6, 22, 0, 23,
+};
+
+
+void codec37_maketable(PersistentCodecData37 *pcd, int pitch, byte index) {
+	int i,j;
+
+	if (pcd->table_last_pitch==pitch && pcd->table_last_flags==index)
+		return;
+	pcd->table_last_pitch = pitch;
+	pcd->table_last_flags = index;
+
+	assert(index*255 + 254 < sizeof(maketable_bytes)/2);
+
+	for(i=0; i<255; i++) {
+		j = i + index*255;
+		pcd->table1[i] = maketable_bytes[j*2+1] * pitch + maketable_bytes[j*2];
+	}
+
+}
+
+void codec37(CodecData *cd, PersistentCodecData37 *pcd) {
+	int width_in_blocks, height_in_blocks;
+	int src_pitch;
+	byte *src = cd->src, *curbuf;
+	uint size;
+	bool result = false;
+
+	width_in_blocks = (cd->w + 3) >> 2;
+	height_in_blocks = (cd->h + 3) >> 2;
+	src_pitch = width_in_blocks * 4;
+
+	codec37_maketable(pcd, src_pitch, cd->src[1]);
+
+	switch(cd->src[0]) {
+	case 0: {
+		curbuf = pcd->deltaBufs[pcd->curtable];
+		memset(pcd->deltaBuf, 0, curbuf - pcd->deltaBuf);
+		size = *(uint32*)(cd->src + 4);
+		memset(curbuf + size, 0, pcd->deltaBuf + pcd->deltaSize - curbuf - size);
+		memcpy(curbuf, cd->src + 16, size);
+		break;
+		}
+	case 2: {
+		size = *(uint32*)(cd->src + 4);
+		curbuf = pcd->deltaBufs[pcd->curtable];
+		codec37_bompdepack(curbuf, cd->src+16, size);
+		memset(pcd->deltaBuf, 0, curbuf - pcd->deltaBuf);
+		memset(curbuf + size, 0, pcd->deltaBuf + pcd->deltaSize - curbuf - size);
+		break;
+		}
+	case 3: {
+		uint16 number = *(uint16*)(cd->src + 2);
+		if ( number && pcd->flags+1 != number)
+			break;
+
+		if (number&1 && cd->src[12]&1 && cd->flags&0x10) {
+			result=true;
+			break;
+		}
+
+		if ((number&1) || !(cd->src[12]&1)) {
+			pcd->curtable ^= 1;			
+		}
+
+		codec37_proc5(pcd->deltaBufs[pcd->curtable], cd->src+16, 
+			pcd->deltaBufs[pcd->curtable^1] - pcd->deltaBufs[pcd->curtable],
+			width_in_blocks, height_in_blocks, src_pitch,
+			pcd->table1);
+		break;
+		}
+
+	case 1:
+	case 4:
+		printf("code %d", cd->src[0]);
+		return;
+	default:
+		error("codec37 default case");
+	}
+
+
+	pcd->flags = *(uint16*)(cd->src + 2);
+
+	if (result) {
+		pcd->curtable ^= 1;
+	} else {
+		memcpy(cd->out, pcd->deltaBufs[pcd->curtable], 320*200);
+	}
+
+}
+
+
+void codec37_init(PersistentCodecData37 *pcd, int width, int height) {
+	pcd->width = width;
+	pcd->height = height;
+	pcd->deltaSize = width*height*2+0x3E00+0xBA00;
+	pcd->deltaBuf = (byte*)calloc(pcd->deltaSize, 1);
+	pcd->deltaBufs[0] = pcd->deltaBuf + 0x3E00;
+	pcd->deltaBufs[1] = pcd->deltaBuf + width * height + 0xBA00;
+	pcd->curtable = 0;
+	pcd->table1 = (int16*)calloc(255,sizeof(uint16));
+}
+
+void SmushPlayer::parseFOBJ() {
+	byte codec;
+	CodecData cd;
+
+	cd.out = _renderBitmap;
+	cd.pitch = cd.outwidth = 320;
+	cd.outheight = 200;
+	cd.y = 0;
+	cd.x = 0;
+	cd.src = _cur + 0xE;
+	cd.w = *(uint16*)(_cur + 6);
+	cd.h = *(uint16*)(_cur + 8);
+	
+	codec = _cur[0];
+
+	switch(codec) {
+	case 1:
+		codec1(&cd);
+		break;
+	case 37:
+		codec37(&cd, &pcd37);
+		break;
+	default:
+		error("invalid codec %d", codec);
+	}
+
+
+}
+
+void SmushPlayer::parsePSAD() {
+	//printf("parse PSAD\n");
+}
+
+void SmushPlayer::parseTRES() {
+//	printf("parse TRES\n");
+}
+
+void SmushPlayer::parseXPAL() {
+	int num;
+	int i;
+
+	num = *(uint16*)(_cur + 2);
+
+	if (num==0 || num==0x200) {
+		if (num==0x200)
+			memcpy(_fluPalette, _cur + 0x604, 0x300);
+
+		for(i=0; i<0x300; i++) {
+			_fluPalMul129[i] = _fluPalette[i] * 129;
+			_fluPalWords[i] = *(uint16*)(_cur + 4 + i*2);
+		}
+		return;
+	}
+
+	for(i=0; i<0x300; i++) {
+		_fluPalMul129[i] += _fluPalWords[i];
+		_fluPalette[i] = _fluPalMul129[i]>>7;
+	}
+
+	_paletteChanged = true;
+}
+
+void SmushPlayer::parseFRME() {
+	_cur = _block;
+	
+	do {
+		_frmeTag = nextBE32();
+		_frmeSize = nextBE32();
+
+		switch(_frmeTag) {
+		case 'NPAL':
+			parseNPAL();
+			break;
+		case 'FOBJ':
+			parseFOBJ();
+			break;
+		case 'PSAD':
+			parsePSAD();
+			break;
+		case 'TRES':
+			parseTRES();
+			break;
+		case 'XPAL':
+			parseXPAL();
+			break;
+		case 'IACT':
+			parseTRES();
+			break;
+		default:
+			invalidblock(_frmeTag);
+		}
+		
+		_cur += (_frmeSize + 1) & ~1;
+		
+	} while (_cur + 4 < _block + _blockSize);
+}
+
+void SmushPlayer::init() {
+	_renderBitmap = (byte*)malloc(320*200);
+	codec37_init(&pcd37, 320, 200);
+}
+
+void SmushPlayer::go() {
+	while (parseTag()) {}
+}
+
+
+void SmushPlayer::setPalette() {
+	int i;
+
+	for(i=0;i<768;i++)
+		sm->_currentPalette[i]=_fluPalette[i];
+}
+
+void SmushPlayer::startVideo(short int arg, byte* videoFile)
+{
+	int frameIndex=0;
+	
+	_in=NULL;
+	_paletteChanged=0;
+	_block=NULL;
+	_blockTag=0;
+	_blockSize=0;
+	_cur=NULL;
+	_renderBitmap=NULL;
+	_frameSize=0;
+	_frmeTag=0;
+	_frmeSize=0;
+	_deltaBuf=NULL;
+	_deltaBufSize=0;
+	
+	pcd37.deltaBuf=NULL;
+	pcd37.deltaBufs[0]=NULL;
+	pcd37.deltaBufs[1]=NULL;
+	pcd37.deltaSize=0;
+	pcd37.width=0;
+	pcd37.height=0;
+	pcd37.curtable=0;
+	pcd37.unk2=0;
+	pcd37.unk3=0;
+	pcd37.flags=0;
+	pcd37.table1=NULL;
+	pcd37.table_last_pitch=0;
+	pcd37.table_last_flags=0;
+	
+	
+	
+	init();
+	openFile(videoFile);
+
+	if(_in==NULL)
+		return;
+	
+        if (fileReadBE32() != 'ANIM')
+		error("file is not an anim");
+
+	fileSize=fileReadBE32();
+		
+	
+	do {
+		if(ftell(_in)>=fileSize )
+			return;
+		
+		parseTag();
+
+		if (_paletteChanged) {
+			_paletteChanged = false;
+			setPalette();
+			sm->setDirtyColors(0, 255);
+		}
+
+		blitToScreen(sm,_renderBitmap, 0, 0, 320 ,200);
+
+		updateScreen(sm);
+
+	} while (1);
+}
+