#ifndef GS_DISPLAY #define GS_DISPLAY struct gs_rectangle /* same as Commodore's Rectangle struct */ { /* guarenteed usable even with old 1.3 gfx.h */ short MinX,MinY; short MaxX,MaxY; }; struct gs_viewport { struct gs_viewport *next; /* pointer to next viewport in display */ unsigned long *color_table; /* ptr to color table for viewport */ int num_colors; /* number of color table entries */ struct copper_struct *ucop; /* ptr to user copper list (or NULL if none) */ int height; /* height of viewport in scan lines */ int width; /* width of viewport in pixels */ int depth; /* number of bitplanes to use for viewport */ int bmheight; /* bitmap height (in rows) (used only if allocating bitmap) */ int bmwidth; /* bitmap width (in pixels) (used only if allocating bitmap) */ int top; /* viewport Y offset (in rows) from display start */ int left; /* viewport X offset (in pixels) from display start */ int xoff; /* X offset within bitmap (in pixels) */ int yoff; /* Y offset within bitmap (in pixels) */ unsigned long flags; /* flags for display routines */ void *vpe1; /* ptr to 2.xx & up ViewPortExtra struct (SYSTEM USE) */ void *vpe2; /* ptr to 2.xx & up ViewPortExtra struct (SYSTEM USE) */ struct BitMap *bitmap1; /* ptr to 1st bitmap struct */ struct BitMap *bitmap2; /* ptr to 2nd bitmap struct */ void *extension; /* reserved for future expansion */ struct gs_rectangle dclip; /* display clip for 2.xx and up displays */ /* ALL REMAINING FIELDS ARE USED ONLY BY THE GAMESMITH DISPLAY SYSTEM */ /* HOWEVER, YOU MAY REFERENCE THE VIEWPORT AND RAASINFO STRUCTS IN YOUR PROGRAM */ struct ViewPort *viewport1; /* system ViewPort struct for 1st display page */ struct ViewPort *viewport2; /* system ViewPort struct for 2nd display page */ struct RasInfo *rasinfo1; /* system RasInfo struct for 1st viewport */ struct RasInfo *rasinfo2; /* system RasInfo struct for 2nd viewport */ unsigned long LOF_BPLCON1; /* offset to horizontal shift register copper instruction */ unsigned long LOF_BPLPTR1; /* offset to 1st bitplane pointer copper instruction */ unsigned long SHF_BPLCON1; /* offset to horizontal shift register copper instruction */ unsigned long SHF_BPLPTR1; /* offset to 1st bitplane pointer copper instruction */ unsigned long LOF_BPLCON2; /* offset to horizontal shift register copper instruction */ unsigned long LOF_BPLPTR2; /* offset to 1st bitplane pointer copper instruction */ unsigned long SHF_BPLCON2; /* offset to horizontal shift register copper instruction */ unsigned long SHF_BPLPTR2; /* offset to 1st bitplane pointer copper instruction */ unsigned short pf1_scroll; /* horizontal scroll value, playfield 1 */ unsigned short pf2_scroll; /* horizontal scroll value, playfield 2 */ int xoff2; /* playfield 2 X offset within bitmap (system use ONLY!) */ int yoff2; /* playfield 2 Y offset within bitmap (system use ONLY!) */ unsigned short LOF_cop1; /* offset to viewport copper list within display list */ unsigned short SHF_cop1; unsigned short LOF_cop2; unsigned short SHF_cop2; unsigned char *LOF_planes1[8]; /* bitplane pointers for scroll reload */ unsigned char *SHF_planes1[8]; /* bitplane pointers for scroll reload */ unsigned char *LOF_planes2[8]; /* bitplane pointers for scroll reload */ unsigned char *SHF_planes2[8]; /* bitplane pointers for scroll reload */ }; #define GSVP_ALLOCBM 0x01 /* let the display setup routine allocate bitmap(s) */ #define GSVP_DCLIP 0x02 /* user specified display clip */ #define GSVP_DPF 0x04 /* set viewport to operate in dual playfield mode */ struct display_struct { struct View *oldview; /* ptr to previous display view */ void *ve1; /* 2.xx & up ViewExtra struct */ void *ve2; /* 2.xx & up ViewExtra struct */ int DxOffset; /* display X offset (in pixels) for 1.3 OS */ int DyOffset; /* display Y offset (in rows) for 1.3 OS */ int modes; /* display mode ID */ unsigned long flags; /* flags for display routines */ struct gs_viewport *vp; /* pointer to 1st viewport in display */ void *extension; /* reserved for future expansion */ struct View *view1; /* system View struct for 1st display page */ struct View *view2; /* system View struct for 2nd display page */ unsigned short *LOF_cop1; /* ptr to long frame hardware copper list for view 1 */ unsigned short *SHF_cop1; /* ptr to short frame hardware copper list for view 1 */ unsigned short *LOF_cop2; /* ptr to long frame hardware copper list for view 1 */ unsigned short *SHF_cop2; /* ptr to short frame hardware copper list for view 1 */ unsigned long LOF_len1; /* number of words in 1st long frame copper list */ unsigned long SHF_len1; /* number of words in 1st short frame copper list */ unsigned long LOF_len2; /* number of words in 1st long frame copper list */ unsigned long SHF_len2; /* number of words in 1st short frame copper list */ }; #define GSV_DOUBLE 0x0001 /* double buffered display */ #define GSV_PAGE1 0x0002 /* SYSTEM FLAG: page 1 currently displayed */ #define GSV_EASY 0x0004 /* SYSTEM FLAG: display set up through easy call */ #define GSV_DISPLAYED 0x0008 /* SYSTEM FLAG: custom display has been shown on screen */ #define GSV_FLIP 0x0010 /* set by gs_flip_display & cleared when new page shown */ #define GSV_SCROLL1 0x0020 /* SYSTEM FLAG: reload copper list with new scroll values */ #define GSV_SCROLL2 0x0040 /* SYSTEM FLAG: reload copper list with new scroll values */ #define GSV_ECSENA 0x0080 /* SYSTEM FLAG: used by AGA chipset scroll handling */ #define GSV_BPAGEM 0x0100 /* SYSTEM FLAG: used by AGA chipset scroll handling */ #define GSV_BPL32 0x0200 /* SYSTEM FLAG: used by AGA chipset scroll handling */ #define GSV_AGA_SCROLL 0x0400 /* SYSTEM FLAG: use enhanced AGA scrolling methods */ #define GSV_SUPER 0x0800 /* SYSTEM FLAG: used by AGA chipset scroll handling */ #define GSV_SCROLLABLE 0x1000 /* allow view to be scrolled */ #define GSV_DDFADJUST 0x2000 /* display system adjusted data fetch for smooth scrolling */ /* return values for gs_scroll_vp: */ #define GSVP_PF1_LEFT 0x01 /* playfield 1 display at leftmost edge */ #define GSVP_PF1_RIGHT 0x02 /* playfield 1 display at rightmost edge */ #define GSVP_PF1_TOP 0x04 /* playfield 1 display at topmost edge */ #define GSVP_PF1_BOTTOM 0x08 /* playfield 1 display at bottom most edge */ #define GSVP_PF2_LEFT 0x10 /* playfield 2 display at leftmost edge */ #define GSVP_PF2_RIGHT 0x20 /* playfield 2 display at rightmost edge */ #define GSVP_PF2_TOP 0x40 /* playfield 2 display at topmost edge */ #define GSVP_PF2_BOTTOM 0x80 /* playfield 2 display at bottom most edge */ #define GSVP_NOVP -1 /* invalid viewport specified */ /* return values from LoadRGB and SetRGB */ /* GSVP_NOVP */ #define GSVP_RANGE -2 /* color register out of range */ #endif