81 lines
1.6 KiB
C++
81 lines
1.6 KiB
C++
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#ifndef _PCGFXCOM_H_
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#define _PCGFXCOM_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* details relating screen modes to pixelmap types
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*/
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typedef struct {
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int type;
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int bitsperpixel; /* Displayed bits per pixel */
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int bytesperpixel; /* Bytes per pixel in frame buffer */
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} pixelmap_info;
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/*
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* information about current mode
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*/
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typedef struct {
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char *display_type;
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int width;
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int height;
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int bitsperpixel;
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int bytesperpixel;
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int doublebuffertype;
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int mode;
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int set_scanline_length;
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} setup_details;
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/*
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* svga adapt. info
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*/
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typedef struct {
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br_uint_32 address;
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br_uint_32 page_num;
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br_uint_32 split;
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br_uint_32 pad;
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} screen_table;
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/*
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* Default setup string
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*/
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#define DOSGFX_DEFAULT "MCGA,"
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#define DOSGFX_DEFAULT_VESA "VESA,W:640:H:480,B:8,C:0,M:0,L:0"
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#define DOSGFX_DEFAULT_MCGA "MCGA,W:320,H:200,B:8,C:0,M:0,L:0"
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/*
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* Environemnt variable used to pick up used defined modes
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*/
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#define DOSGFX_ENVNAME "BRENDER_DOS_GFX"
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/*
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* Port addreses of VGA CLUT
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*/
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#define VGA_PAL_ADDRESS 0x3c8
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#define VGA_PAL_DATA 0x3c9
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extern char *_DOSGfxDefaultSetupString;
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extern char *_DOSGfxEnvironmentVar;
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extern int _DOSGfxIndexed;
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extern pixelmap_info pixelmap_bit_sizes[]; /* screen mode <-> pixelmap details */
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extern int pixelmap_bit_sizes_count; /* # entries in above table */
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extern int old_screen_mode; /* previous screen mode */
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extern int BR_ASM_DATA pc_gfx_set; /* Flag set true is mode is set */
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void _ProcessSetupString(char *string,setup_details *details); /* decode out brender_pc_gfx environment var */
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void _PaletteSet(br_pixelmap *palette);
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void _PaletteSetEntry(int i,br_colour colour);
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#ifdef __cplusplus
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};
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#endif
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#endif
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