155 lines
4.4 KiB
C
155 lines
4.4 KiB
C
typedef struct svga_t
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{
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mem_mapping_t mapping;
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uint8_t crtcreg;
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uint8_t crtc[128];
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uint8_t gdcreg[16];
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int gdcaddr;
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uint8_t attrregs[32];
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int attraddr, attrff;
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int attr_palette_enable;
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uint8_t seqregs[64];
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int seqaddr;
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uint8_t miscout;
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int vidclock;
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uint32_t vram_limit;
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uint8_t la, lb, lc, ld;
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uint8_t dac_mask, dac_status;
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int dac_read, dac_write, dac_pos;
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int dac_r, dac_g;
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uint8_t cgastat;
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uint8_t plane_mask;
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int fb_only;
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int fast;
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uint8_t colourcompare, colournocare;
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int readmode, writemode, readplane;
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int chain4, chain2_write, chain2_read;
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int oddeven_page;
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int enablevram, extvram;
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uint8_t writemask;
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uint32_t charseta, charsetb;
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uint8_t egapal[16];
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uint32_t pallook[256];
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PALETTE vgapal;
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int ramdac_type;
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int vtotal, dispend, vsyncstart, split, vblankstart;
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int hdisp, hdisp_old, htotal, hdisp_time, rowoffset;
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int lowres, interlace;
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int linedbl, rowcount;
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double clock;
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uint32_t ma_latch;
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int bpp;
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int dispontime, dispofftime;
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int vidtime;
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uint8_t scrblank;
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int dispon;
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int hdisp_on;
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uint32_t ma, maback, ca;
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int vc;
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int sc;
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int linepos, vslines, linecountff, oddeven;
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int con, cursoron, blink;
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int scrollcache;
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int firstline, lastline;
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int firstline_draw, lastline_draw;
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int displine;
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uint8_t *vram;
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uint8_t *changedvram;
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int vrammask;
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uint32_t banked_mask;
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uint32_t write_bank, read_bank;
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int fullchange;
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int video_res_x, video_res_y, video_bpp;
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int frames, fps;
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struct
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{
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int ena;
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int x, y;
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int xoff, yoff;
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int ysize;
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uint32_t addr;
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int v_acc, h_acc;
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} hwcursor, hwcursor_latch, overlay, overlay_latch;
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int hwcursor_on;
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int overlay_on;
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int hwcursor_oddeven;
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int overlay_oddeven;
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void (*render)(struct svga_t *svga);
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void (*recalctimings_ex)(struct svga_t *svga);
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void (*video_out)(uint16_t addr, uint8_t val, void *p);
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uint8_t (*video_in) (uint16_t addr, void *p);
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void (*hwcursor_draw)(struct svga_t *svga, int displine);
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void (*overlay_draw)(struct svga_t *svga, int displine);
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/*If set then another device is driving the monitor output and the SVGA
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card should not attempt to display anything */
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int override;
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void *p;
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} svga_t;
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extern int svga_init(svga_t *svga, void *p, int memsize,
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void (*recalctimings_ex)(struct svga_t *svga),
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uint8_t (*video_in) (uint16_t addr, void *p),
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void (*video_out)(uint16_t addr, uint8_t val, void *p),
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void (*hwcursor_draw)(struct svga_t *svga, int displine),
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void (*overlay_draw)(struct svga_t *svga, int displine));
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extern void svga_recalctimings(svga_t *svga);
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uint8_t svga_read(uint32_t addr, void *p);
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uint16_t svga_readw(uint32_t addr, void *p);
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uint32_t svga_readl(uint32_t addr, void *p);
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void svga_write(uint32_t addr, uint8_t val, void *p);
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void svga_writew(uint32_t addr, uint16_t val, void *p);
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void svga_writel(uint32_t addr, uint32_t val, void *p);
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uint8_t svga_read_linear(uint32_t addr, void *p);
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uint16_t svga_readw_linear(uint32_t addr, void *p);
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uint32_t svga_readl_linear(uint32_t addr, void *p);
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void svga_write_linear(uint32_t addr, uint8_t val, void *p);
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void svga_writew_linear(uint32_t addr, uint16_t val, void *p);
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void svga_writel_linear(uint32_t addr, uint32_t val, void *p);
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void svga_add_status_info(char *s, int max_len, void *p);
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extern uint8_t svga_rotate[8][256];
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void svga_out(uint16_t addr, uint8_t val, void *p);
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uint8_t svga_in(uint16_t addr, void *p);
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svga_t *svga_get_pri();
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void svga_set_override(svga_t *svga, int val);
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#define RAMDAC_6BIT 0
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#define RAMDAC_8BIT 1
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void svga_set_ramdac_type(svga_t *svga, int type);
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extern uint8_t mask_crtc[0x19];
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