brender-v1.1.2/FW/OFILEOPS.C

/*
 * Copyright (c) 1993-1995 Argonaut Technologies Limited. All rights reserved.
 *
 * $Id: ofileops.c 1.5 1995/02/22 21:42:15 sam Exp $
 * $Locker:  $
 *
 * $ BC<"make -f makefile.wtc %s.pp;">
 *
 * Out of date file operations
 *
 */

#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <ctype.h>
#include <argstd.h>
#include <error.h>
#include <math.h>

#include "brender.h"
#include "brhton.h"
#include "animate.h"
#include "datafile.h"

static char rscid[] = "$Id: ofileops.c 1.5 1995/02/22 21:42:15 sam Exp $";

/*
 * For digging around in points etc - makes things slightly easier to read
 */
#define X 0
#define Y 1
#define Z 2
#define W 3

#define U 0
#define V 1

#if 0
/*
 * File structures
 */
typedef struct br_file_info {
	br_int_32 type;
	br_int_32 version;
} br_file_info;

typedef struct br_chunk_header {
	br_int_32 id;
	br_int_32 length;
} br_chunk_header;

typedef struct br_file_pixmap {
	br_int_32 width;
	br_int_32 height;
} br_file_pixmap;

typedef struct br_file_material {
	/* */
	br_uint_16 flags;

	br_float red;
	br_float green;
	br_float blue;

	br_float ka;
	br_float kd;
	br_float ks;

	br_float opacity;

	char identifier[1];
} br_file_material;

typedef struct br_file_actor_data {
		char		identifier[16];
		long		type;
		br_float	matrix34[4][3];
} br_file_actor_data;

typedef struct br_file_actor {
	/* */

	br_file_actor_data file;

	struct br_file_actor *prev;
	struct br_file_actor *next;
	struct br_file_actor *child;
	struct br_file_actor *sibling;
	struct br_file_actor *parent;
} br_file_actor;

typedef struct br_file_animation {
	br_float matrix[4][4];
} br_file_animation;

typedef struct br_file_anim {
	/* */
	
	char *identifier;
	struct br_animation *frames;
}  br_file_anim ;

typedef struct br_file_model {
	/* */
	char identifier[1];
} br_file_model;

typedef struct br_file_vertex {
	br_float x;
	br_float y;
	br_float z;
} br_file_vertex;

typedef struct br_file_vertex_uv {
	br_float x;
	br_float y;
	br_float z;
	br_float u;
	br_float v;
} br_file_vertex_uv;

typedef struct br_file_face {
	br_uint_16 v1;
	br_uint_16 v2;
	br_uint_16 v3;

	br_uint_16 material;
	br_uint_32 smoothing;
} br_file_face;
#endif

extern br_animation *anim[20];

br_model *objects[50];

/*
 * Read animation frames from the file.
 */
int BR_PUBLIC_ENTRY BrOldAnimLoad(	char *filename,br_animation ***anim,
						int *num_frames,br_model **objects)
{
	int	count=0;
	int	frame=0,num=0;
	br_animation *temp;
	br_animation **frames;
	FILE *fp;
	char *name;

	fp=FOPEN(filename,"rb");

	for(;;)
	{
	  	if (DfDataInterpret(fread,fseek,fp)==0)
			break;

	 	temp=(br_animation*)DfPop(DFST_ANIM_TRANSFORM,&count);
		NEW_PTR_N(frames,count+1);
		*num_frames=count;
		while(count>0)
		{
			frames[count]=temp;
			temp=(br_animation*)DfPop(DFST_ANIM_TRANSFORM,&count);
		}
		frames[count]=temp;
		name=(char*)DfPop(DFST_ANIM_NAME,NULL);
		count=BrActorFind(name,objects);

		if (count>=0)
			anim[count]=frames;
		num++;
	}

	FCLOSE(fp);

	return num;
}


/*
 * Find the named model in the renderer's current set, return Model pointer
 */
br_model * BR_PUBLIC_ENTRY BrOldModelFind(char *name,br_model **objects)
{
	int	i;
	for (i=1;objects[i];i++)
		if (strcmp(name,objects[i]->identifier)==0)	return objects[i];
	return objects[0];
}

/*
 * Find the named model in the renderer's current set, return Actor index
 */
br_uint_32 BR_PUBLIC_ENTRY BrOldActorFind(char *name,br_model **objects)
{
	int	i;
	for (i=0;objects[i];i++)
        if (strncmp(name,objects[i]->identifier,10)==0) return i;
	return -1;
}


/*
 * read file type of a file from the p3d_file_info block
 * a file
 */
br_uint_32 BR_PUBLIC_ENTRY  BrOldTypeRead(char *filename)
{
	br_file_info *info;
	FILE *fp;

	fp=FOPEN(filename,"rb");
	DfTypeInterpret(fread,fseek,fp);
	info=(br_file_info *)DfPop(DFST_FILE_INFO,NULL);
	FCLOSE(fp);

	return info->type;
}