Initial revision

src/findfile.h

+#ifndef _FINDFILE_H
+#define _FINDFILE_H
+
+extern char **getfiledirs(void);
+extern char *findfile( char *superfile, char *fname );
+extern void filedirs( char **dirs );
+
+extern int fgetns(FILE *, int nshort, short *sp, int binary);
+extern int fgetni(FILE *, int nint, int *ip, int binary);
+
+#endif

src/textures.h

+#ifndef _TEXTURES_H
+#define _TEXTURES_H
+
+#include "geometry.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct Texture Texture;
+typedef struct { float r,g,b,a; } ColorA;
+
+Texture * txmake( char *fname, int apply, int txflags, int qualflags );
+int       txload( Texture *tx );
+int	  txbind( Texture *tx, int *enabled );
+
+int	  txaddentry( Texture ***tp, int *ntextures, char *fromfile,
+		int txno, char *txfname, int apply, int txflags, int qualflags );
+
+void	  txpurge( Texture *tx );
+
+#define MAXGLCTX 8
+
+struct Texture {
+    char *filename;		/* ppm or pgm (.Z) file */
+    char *alphafilename;	/* If present, this is a .pgm (.Z) file */
+    char *data;			/* Raw data, top to bottom, read from file */
+    int xsize, ysize, channels;
+    unsigned int flags;		/* clamp, etc. */
+    int apply;			/* Application style (TXF_DECAL, TXF_MODULATE, TXF_BLEND) */
+    int loaded;			/* 0: not yet; 1: yes; -1: error */
+    int coords;			/* Texture-coord auto generation (not used) */
+    int qualflags;		/* APF_TX{MIPMAP,MIPINTERP,LINEAR}: if loaded, how? */
+    ColorA background;		/* background color: outside of clamped texture */
+    Matrix tfm;			/* texture-coord transformation */
+    int txid[MAXGLCTX];		/* OpenGL texture-object id's */
+    struct Texture *next;	/* Link in list of all loaded textures */
+};
+
+extern Texture *AllLoadedTextures;	/* List of em */
+
+
+#define	TX_DOCLAMP	450
+#define	  TXF_SCLAMP	  0x1	/* Clamp if s outside 0..1 (else wrap) */
+#define	  TXF_TCLAMP	  0x2	/* Clamp if t outside 0..1 (else wrap) */
+
+#define	  TXF_LOADED	  0x4	/* Has this texture been loaded?
+				 * (tried to read those files yet?)
+				 */
+#define	  TXF_RGBA	  0x8	/* In loaded data, is R first byte? (else ABGR) */
+#define	  TXF_USED	  0x10	/* "Recently rendered a geom containing this texture" */
+
+#define	TX_APPLY	451	/* Interpret texture values to... */
+#define	  TXF_MODULATE	  0
+#define	  TXF_BLEND	  1
+#define	  TXF_DECAL	  2
+
+#define	TX_FILE		452
+#define	TX_ALPHAFILE	453
+#define	TX_DATA		454
+#define	TX_XSIZE	455
+#define	TX_YSIZE	456
+#define	TX_CHANNELS	457
+#define	TX_COORDS	458 /* Texture coordinates come from... */
+#define	  TXF_COORD_GIVEN	0   /* given as part of object (default) */
+				    /* In fact, only TXF_COORD_GIVEN works now. */
+#define	  TXF_COORD_LOCAL	1   /* In coord system of texture map */
+#define	  TXF_COORD_CAMERA	2   /* In camera coords */
+#define	  TXF_COORD_NORMAL	3   /* Taken from surface-normal, for env map */
+#define	TX_BACKGROUND	459
+#define	TX_HANDLE_TRANSFORM	460
+
+#define	TX_ABLOCK	464
+#define	TX_END		465
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _TEXTURES_H */
+