warzone2100/lib/ivis_opengl/screen.h

/*
	This file is part of Warzone 2100.
	Copyright (C) 1999-2004  Eidos Interactive
	Copyright (C) 2005-2007  Warzone Resurrection Project

	Warzone 2100 is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	Warzone 2100 is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with Warzone 2100; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
 * Screen.h
 *
 * Interface to the OpenGL double buffered display.
 *
 */
#ifndef _screen_h
#define _screen_h

/* Check the header files have been included from frame.h if they
 * are used outside of the framework library.
 */
#if !defined(_frame_h) && !defined(FRAME_LIB_INCLUDE)
#error Framework header files MUST be included from Frame.h ONLY.
#endif

#include "lib/framework/types.h"

/* ------------------------------------------------------------------------------------------- */

/* Legacy stuff 
 * - only used in the sequence video code we have not yet decided whether to port or to junk */

void *screenGetSurface(void); /* Return a pointer to the back buffer surface */

/* Set the colour for text */
void screenSetTextColour(UBYTE red, UBYTE green, UBYTE blue);

/* Image structure */

typedef struct {
	unsigned int	width;
	unsigned int	height;
	unsigned int	channels;
	unsigned char*	data;
} pie_image;

BOOL image_init(pie_image* image);
BOOL image_create(pie_image* image,
		  unsigned int width,
		  unsigned int height,
		  unsigned int channels);
BOOL image_delete(pie_image* image);

/* backDrop */
extern void screen_SetBackDrop(UWORD* newBackDropBmp, UDWORD width, UDWORD height);
extern void screen_SetBackDropFromFile(const char* filename);
extern void screen_StopBackDrop(void);
extern void screen_RestartBackDrop(void);
extern BOOL screen_GetBackDrop(void);
extern void screen_Upload(const char *newBackDropBmp);

/* screendump */
void screenDumpToDisk(const char* path);

/* Toggle the display between full screen or windowed */
extern void	screenToggleMode(void);

extern int wz_texture_compression;

/* defined in piedraw.c */
BOOL check_extension(const char* extension_name);

#endif