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/*
* Copyright (C) Volition, Inc. 1999. All rights reserved.
*
* All source code herein is the property of Volition, Inc. You may not sell
* or otherwise commercially exploit the source or things you created based on the
* source.
*
*/
#ifndef _GRINTERNAL_H
#define _GRINTERNAL_H
#include "globalincs/globals.h" // just in case pstypes.h messed up
#include "globalincs/pstypes.h" // IAM_64BIT
#include "graphics/2d.h"
#include "graphics/font.h"
extern int Gr_cursor;
extern int Gr_cursor_size;
extern ubyte Gr_original_palette[768]; // The palette
extern ubyte Gr_current_palette[768];
extern char Gr_current_palette_name[128];
typedef struct color_gun {
int bits;
int shift;
int scale;
int mask;
} color_gun;
// screen format
extern color_gun Gr_red, Gr_green, Gr_blue, Gr_alpha;
// texture format
extern color_gun Gr_t_red, Gr_t_green, Gr_t_blue, Gr_t_alpha;
// alpha texture format
extern color_gun Gr_ta_red, Gr_ta_green, Gr_ta_blue, Gr_ta_alpha;
// CURRENT FORMAT - note - this is what bmpman uses when fiddling with pixels/colors. so be sure its properly set to one
// of the above values
extern color_gun *Gr_current_red, *Gr_current_green, *Gr_current_blue, *Gr_current_alpha;
extern float Gr_gamma;
extern int Gr_gamma_int;
#define TCACHE_TYPE_AABITMAP 0 // HUD bitmap. All Alpha.
#define TCACHE_TYPE_NORMAL 1 // Normal bitmap. Alpha = 0.
#define TCACHE_TYPE_XPARENT 2 // Bitmap with 0,255,0 = transparent. Alpha=0 if transparent, 1 if not.
#define TCACHE_TYPE_INTERFACE 3 // for graphics that are using in the interface (for special filtering or sizing)
#define TCACHE_TYPE_COMPRESSED 4 // Compressed bitmap type (DXT1, DXT3, DXT5)
#define TCACHE_TYPE_CUBEMAP 5
#define NEBULA_COLORS 20
typedef enum gr_texture_source {
TEXTURE_SOURCE_NONE,
TEXTURE_SOURCE_DECAL,
TEXTURE_SOURCE_NO_FILTERING,
TEXTURE_SOURCE_MODULATE4X
} gr_texture_source;
typedef enum gr_alpha_blend {
ALPHA_BLEND_NONE, // 1*SrcPixel + 0*DestPixel
ALPHA_BLEND_ADDITIVE, // 1*SrcPixel + 1*DestPixel
ALPHA_BLEND_ALPHA_ADDITIVE, // Alpha*SrcPixel + 1*DestPixel
ALPHA_BLEND_ALPHA_BLEND_ALPHA, // Alpha*SrcPixel + (1-Alpha)*DestPixel
ALPHA_BLEND_ALPHA_BLEND_SRC_COLOR, // Alpha*SrcPixel + (1-SrcPixel)*DestPixel
ALPHA_BLEND_PREMULTIPLIED // 1*SrcPixel + (1-Alpha)*DestPixel
} gr_alpha_blend;
typedef enum gr_zbuffer_type {
ZBUFFER_TYPE_NONE,
ZBUFFER_TYPE_READ,
ZBUFFER_TYPE_WRITE,
ZBUFFER_TYPE_FULL,
ZBUFFER_TYPE_DEFAULT
} gr_zbuffer_type;
typedef enum gr_stencil_type {
STENCIL_TYPE_NONE,
STENCIL_TYPE_READ,
STENCIL_TYPE_WRITE
} gr_stencil_type;
#endif
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