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4b52a514bd
1. Properly implemented polygon filling in the BitBLT side of the ATI 8514/A compatibles (Mach8/32), this allows games like Mj8514 and demos like HDIDEMO from IBM to run under ATI's hdiload 1.1 properly. 2. Finally figured out the polygon filling command in the IBM one about read and write masks (Command 5 and Command 2 with polygon filling bits on, currently only for the read mask one), this allows the above samples to render properly with IBM's original hdiload 1.0 from 1987.
211 lines
4.7 KiB
C
211 lines
4.7 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Emulation of the 8514/A card from IBM for the MCA bus and
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* generic ISA bus clones without vendor extensions.
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*
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*
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*
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* Authors: TheCollector1995
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*
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* Copyright 2022 TheCollector1995.
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*/
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#ifndef VIDEO_8514A_H
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#define VIDEO_8514A_H
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typedef struct hwcursor8514_t {
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int ena;
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int x;
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int y;
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int xoff;
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int yoff;
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int cur_xsize;
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int cur_ysize;
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int v_acc;
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int h_acc;
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uint32_t addr;
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uint32_t pitch;
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} hwcursor8514_t;
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typedef struct ibm8514_t {
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hwcursor8514_t hwcursor;
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hwcursor8514_t hwcursor_latch;
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uint8_t pos_regs[8];
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int force_old_addr;
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int type;
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int local;
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int bpp;
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int on[2];
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int accel_bpp;
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uint32_t vram_size;
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uint32_t vram_mask;
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uint32_t pallook[512];
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PALETTE vgapal;
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uint8_t hwcursor_oddeven;
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uint8_t dac_mask;
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uint8_t dac_status;
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uint32_t *map8;
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int dac_addr;
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int dac_pos;
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int dac_r;
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int dac_g;
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int dac_b;
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int internal_pitch;
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int hwcursor_on;
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struct {
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uint16_t subsys_cntl;
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uint16_t setup_md;
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uint16_t advfunc_cntl;
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uint8_t ext_advfunc_cntl;
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uint16_t cur_y;
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uint16_t cur_x;
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int16_t destx;
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int16_t desty;
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int16_t desty_axstp;
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int16_t destx_distp;
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int16_t err_term;
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int16_t maj_axis_pcnt;
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int16_t maj_axis_pcnt_no_limit;
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uint16_t cmd;
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uint16_t cmd_back;
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uint16_t short_stroke;
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uint16_t bkgd_color;
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uint16_t frgd_color;
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uint16_t wrt_mask;
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uint16_t rd_mask;
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uint16_t color_cmp;
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uint16_t bkgd_mix;
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uint16_t frgd_mix;
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uint16_t multifunc_cntl;
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uint16_t multifunc[16];
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int16_t clip_left;
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int16_t clip_top;
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uint8_t pix_trans[2];
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int poly_draw;
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int ssv_state;
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int x1;
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int x2;
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int x3;
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int y1;
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int y2;
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int sys_cnt;
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int sys_cnt2;
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int temp_cnt;
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int16_t cx;
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int16_t cx_back;
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int16_t cy;
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int16_t oldcx;
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int16_t oldcy;
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int16_t sx;
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int16_t sy;
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int16_t dx;
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int16_t dy;
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int16_t err;
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uint32_t src;
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uint32_t dest;
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uint32_t newsrc_blt;
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uint32_t newdest_blt;
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uint32_t newdest_in;
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uint32_t newdest_out;
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uint8_t *writemono;
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uint8_t *nibbleset;
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int x_count;
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int xx_count;
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int y_count;
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int input;
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int output;
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uint16_t cur_x_bit12;
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uint16_t cur_y_bit12;
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int ssv_len;
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uint8_t ssv_dir;
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uint8_t ssv_draw;
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int odd_in;
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int odd_out;
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uint16_t scratch;
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int fill_state;
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int xdir;
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int ydir;
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int linedraw;
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uint32_t ge_offset;
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} accel;
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uint16_t test;
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int vendor_mode[2];
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int v_total;
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int dispend;
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int v_syncstart;
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int split;
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int h_disp;
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int h_disp_old;
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int h_total;
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int h_disp_time;
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int rowoffset;
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int dispon;
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int hdisp_on;
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int linecountff;
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int vc;
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int linepos;
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int oddeven;
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int cursoron;
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int blink;
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int scrollcache;
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int firstline;
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int lastline;
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int firstline_draw;
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int lastline_draw;
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int displine;
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int fullchange;
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uint32_t ma;
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uint32_t maback;
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uint8_t *vram;
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uint8_t *changedvram;
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uint8_t linedbl;
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uint8_t data_available;
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uint8_t data_available2;
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uint8_t scanmodulos;
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uint8_t rowcount;
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int htotal;
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int hdisp;
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int vtadj;
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int vdadj;
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int vsadj;
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int sc;
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int vtb;
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int vdb;
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int vsb;
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int vsyncstart;
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int vsyncwidth;
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int vtotal;
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int vdisp;
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int disp_cntl;
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int interlace;
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uint8_t subsys_cntl;
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uint8_t subsys_stat;
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atomic_int force_busy;
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atomic_int force_busy2;
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int blitter_busy;
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uint64_t blitter_time;
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uint64_t status_time;
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int pitch;
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int ext_pitch;
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int ext_crt_pitch;
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} ibm8514_t;
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#endif /*VIDEO_8514A_H*/
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