d17d13e3b8
1. Cleanups and moving the mach8/32 struct to a dedicated header so that would allow for future 8514/A add-on clones (in paper). 2. Mach8/32's port 0x4ae8/9 and shadow set ports (0x5aee and 0x46ee) now account to the mode changes seriously, should fix most of the horizontal/vertical coordinates while entering GUI modes of various stuff. 3. Horizontal/Vertical window coordinates can only be modified if the display enable bit of port 0x22e8 is set as well as bit 0 of port 0x4aee, fixes most problems noted above. 4. Implemented horizontal blanking stuff a la VGA but actually for 8514/A and clones (like ATI). 5. Added some comments regarding the current situation. 6. The Mach8 was actually a 8514/A clone co-processor, not a single solution card of its own. The ATI Graphics Ultra was a single solution card that is actually a Mach8 + ATI 28800-6 in one, so renaming it accordingly. 7. Fixed garbled/distorted acceleration when device bitmap acceleration is enabled in the ATI Mach8 3.0 Win3.1 drivers.
163 lines
4.1 KiB
C
163 lines
4.1 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-compatible Mach8 and Mach32 graphics
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* chips from ATI for the ISA/VLB/MCA/PCI buses.
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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 2022-2024 TheCollector1995.
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*/
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#ifndef VIDEO_ATI_MACH8_H
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#define VIDEO_ATI_MACH8_H
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typedef struct mach_t {
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ati_eeprom_t eeprom;
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svga_t svga;
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rom_t bios_rom;
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rom_t bios_rom2;
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mem_mapping_t mmio_linear_mapping;
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int mca_bus;
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int pci_bus;
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int vlb_bus;
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int has_bios;
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uint8_t regs[256];
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uint8_t pci_regs[256];
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uint8_t int_line;
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uint8_t pci_slot;
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uint8_t irq_state;
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int index;
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int ramdac_type;
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int old_mode;
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uint32_t memory;
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uint16_t config1;
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uint16_t config2;
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uint8_t pos_regs[8];
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uint8_t pci_cntl_reg;
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uint8_t cursor_col_0;
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uint8_t cursor_col_1;
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uint8_t ext_cur_col_0_r;
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uint8_t ext_cur_col_1_r;
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uint8_t ext_cur_col_0_g;
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uint8_t ext_cur_col_1_g;
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uint16_t cursor_col_0_rg;
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uint16_t cursor_col_1_rg;
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uint16_t cursor_col_b;
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uint16_t cursor_offset_lo;
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uint16_t cursor_offset_lo_reg;
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uint16_t cursor_offset_hi;
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uint16_t cursor_offset_hi_reg;
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uint16_t cursor_vh_offset;
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uint16_t cursor_x;
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uint16_t cursor_y;
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uint16_t misc;
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uint16_t memory_aperture;
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uint16_t local_cntl;
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uint32_t linear_base;
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uint8_t ap_size;
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uint8_t bank_w;
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uint8_t bank_r;
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uint16_t shadow_set;
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uint16_t shadow_cntl;
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int ext_on[2];
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int compat_mode;
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struct {
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uint8_t line_idx;
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int16_t line_array[6];
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uint8_t patt_idx;
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uint8_t patt_len;
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uint8_t pix_trans[2];
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uint8_t eeprom_control;
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uint16_t dest_x_end;
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uint16_t dest_x_start;
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uint16_t dest_y_end;
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uint16_t src_x_end;
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uint16_t src_x_start;
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uint16_t src_x;
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uint16_t src_y;
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int16_t bres_count;
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uint16_t clock_sel;
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uint16_t crt_pitch;
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uint16_t ge_pitch;
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uint16_t dest_cmp_fn;
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uint16_t dp_config;
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uint16_t ext_ge_config;
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uint16_t ge_offset_lo;
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uint16_t ge_offset_hi;
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uint16_t linedraw_opt;
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uint16_t max_waitstates;
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uint8_t patt_data_idx;
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uint8_t patt_data[0x18];
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uint16_t scan_to_x;
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uint16_t scratch0;
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uint16_t scratch1;
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uint16_t test;
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uint16_t pattern;
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uint16_t test2;
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int src_y_dir;
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int cmd_type;
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int block_write_mono_pattern_enable;
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int mono_pattern_enable;
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int16_t cx_end_line;
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int16_t cy_end_line;
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int16_t cx;
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int16_t cx_end;
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int16_t cy_end;
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int16_t dx;
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int16_t dx_end;
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int16_t dy;
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int16_t dy_end;
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int16_t dx_start;
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int16_t dy_start;
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int16_t cy;
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int16_t sx_start;
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int16_t sx_end;
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int16_t sx;
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int16_t x_count;
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int16_t xx_count;
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int16_t xxx_count;
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int16_t sy;
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int16_t y_count;
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int16_t err;
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int16_t width;
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int16_t src_width;
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int16_t height;
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int16_t bleft, bright, btop, bbottom;
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int poly_src;
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int temp_cnt;
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int stepx;
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int stepy;
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int src_stepx;
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uint8_t color_pattern[16];
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uint8_t color_pattern_full[32];
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uint16_t color_pattern_word[8];
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int mono_pattern[8][8];
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uint32_t ge_offset;
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uint32_t crt_offset;
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uint32_t patt_len_reg;
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int poly_fill;
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uint16_t dst_clr_cmp_mask;
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int clip_overrun;
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int color_pattern_idx;
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} accel;
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atomic_int force_busy;
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} mach_t;
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#endif /*VIDEO_ATI_MACH8_H*/
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