/*
** This little program can be used to convert an ILBM brush
** to something that MUI's Bodychunk class can understand.
**
** Perfect for about logos and stuff like that...
**
** Have fun,
** Stefan.
*/

#include "exec/types.h"
#include "exec/memory.h"
#include "libraries/dos.h"
#include "libraries/iffparse.h"
#include "datatypes/pictureclass.h"
#include "graphics/gfx.h"
#include "proto/dos.h"
#include "proto/iffparse.h"
#include "stdlib.h"
#include "string.h"
#include "stdio.h"
#include "ctype.h"


#define to32(c) (((c)<<24)|((c)<<16)|((c)<<8)|(c))

#define ID_ANIM MAKE_ID('A','N','I','M')
#define ID_ANHD MAKE_ID('A','N','H','D')
#define ID_DLTA MAKE_ID('D','L','T','A')


char name[100],uname[100];


BOOL ParseILBM(struct IFFHandle *iff)
{
	struct StoredProperty *sp;
	struct BitMapHeader *bmhd;
	UBYTE *body;
	int size,i;
	UBYTE *cols;
	BOOL rc = FALSE;

	if (!PropChunk(iff,ID_ILBM,ID_BMHD) &&
	    !PropChunk(iff,ID_ILBM,ID_CMAP) &&
	    !StopChunk(iff,ID_ILBM,ID_BODY) &&
	    !StopOnExit(iff,ID_ILBM,ID_FORM) &&
	    !ParseIFF(iff,IFFPARSE_SCAN))
	{
		if (sp=FindProp(iff,ID_ILBM,ID_CMAP))
		{
	    	cols = (UBYTE *)sp->sp_Data;

			printf("#ifdef USE_%s_COLORS\n",uname);
			printf("const ULONG %s_colors[%ld] =\n{\n",name,sp->sp_Size);
			for (i=0;i<sp->sp_Size;i+=3)
				printf("\t0x%08lx,0x%08lx,0x%08lx,\n",to32(cols[i]),to32(cols[i+1]),to32(cols[i+2]));
			printf("};\n");
			printf("#endif\n\n");
		}

		if (sp=FindProp(iff,ID_ILBM,ID_BMHD))
		{
			bmhd = (struct BitMapHeader *)sp->sp_Data;

			if ((bmhd->bmh_Compression==cmpNone) || (bmhd->bmh_Compression==cmpByteRun1))
			{
				size = CurrentChunk(iff)->cn_Size;

				if (body=malloc(size))
				{
					if (ReadChunkBytes(iff,body,size)==size)
					{
						fprintf(stderr,"Width %d Height %d Depth %d - converting...\n",bmhd->bmh_Width,bmhd->bmh_Height,bmhd->bmh_Depth);

						printf("#define %s_WIDTH       %3d\n",uname,bmhd->bmh_Width);
						printf("#define %s_HEIGHT      %3d\n",uname,bmhd->bmh_Height);
						printf("#define %s_DEPTH       %3d\n",uname,bmhd->bmh_Depth);
						printf("#define %s_COMPRESSION %3d\n",uname,bmhd->bmh_Compression);
						printf("#define %s_MASKING     %3d\n",uname,bmhd->bmh_Masking);
						printf("\n");

						printf("#ifdef USE_%s_HEADER\n",uname);
						printf("const struct BitMapHeader %s_header =\n{ %ld,%ld,%ld,%ld,%ld,%ld,%ld,0,%ld,%ld,%ld,%ld,%ld };\n",name,bmhd->bmh_Width,bmhd->bmh_Height,bmhd->bmh_Left,bmhd->bmh_Top,bmhd->bmh_Depth,bmhd->bmh_Masking,bmhd->bmh_Compression,bmhd->bmh_Transparent,bmhd->bmh_XAspect,bmhd->bmh_YAspect,bmhd->bmh_PageWidth,bmhd->bmh_PageHeight);
						printf("#endif\n\n");

						printf("#ifdef USE_%s_BODY\n",uname);
						printf("const UBYTE %s_body[%ld] = {\n",name,size);
						for (i=0;i<size;i++)
						{
							printf("0x%02lx,",body[i]);
							if (!((i+1)%15)) printf("\n");
						}
						printf(" };\n");
						printf("#endif\n");

						rc = TRUE;
					}
					free(body);
				}
			}
		}
	}
	return(rc);
}


int main(int argc,char **argv)
{
	char *c;
	struct IFFHandle *iff;
	struct ContextNode *cn;

	if (argc<2 || argc>3 || argv[1][0]=='?')
	{
		printf("Syntax: %s ilbm-file\n",argv[0]);
		exit(20);
	}

	stccpy(name,FilePart(argv[1]),100);
	if (c=strchr(name,'.')) *c=0;
	strcpy(uname,name);
	for (c=uname;*c;c++)
		*c=toupper(*c);

	if (iff=AllocIFF())
	{
		if (iff->iff_Stream=Open(argv[1],MODE_OLDFILE))
		{
			InitIFFasDOS(iff);

			if (!OpenIFF(iff,IFFF_READ))
			{
				if (!ParseIFF(iff,IFFPARSE_STEP))
				{
					if ((cn=CurrentChunk(iff)) && (cn->cn_ID==ID_FORM))
					{
						if (cn->cn_Type==ID_ILBM)
						{
							ParseILBM(iff);
						}
					}
				}
				CloseIFF(iff);
			}
			Close(iff->iff_Stream);
		}
		FreeIFF(iff);
	}
	return(0);
}