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Big video changes of the day (October 26th, 2024)

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8514/A/Mach8/32:
Reworked the acceleration a bit as well as the mode switches from VGA to ATI/8514/A mode and viceversa based on the documentation. Fixes the Linux GUI fonts using the Mach32 driver (possibly Mach8 too) and other anomalies (still needs more work on the acceleration though).

PVGA:
Minor fixes to the banking.

S3-based (Pre-ViRGE):
1. Made the chip class use its own banking so that the Enhanced Mode mapping (equivalent to 64K-based A0000) is taken into account (per bit 3 of CRTC31, which forces the mapping to be 64K A0000, regardless of the GDCREG6 bits). Fixes NT 3.1 347.1's S3 driver.
2. Initial rework on 15bpp/16bpp accelerated mode of the 911/924 chips (currently not 100% bug free, I need help with this chips).

XGA-1/2:
Get rid of the linear endian reverse variable hack used by OS/2 and, instead, use the already declared ones more wisely, fixes OS/2 2.1 reversed fonts and keeps everything else working as it should.

Misc:
Added the BT481 RAMDAC for future card use.
This commit is contained in:
TC1995
2024-10-26 21:32:47 +02:00
parent 0290c38851
commit 9c111584b5
13 changed files with 3029 additions and 4200 deletions
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21
src/include/86box/vid_ati_mach8.h
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@@ -41,8 +41,6 @@ typedef struct mach_t {
int ramdac_type;
int old_mode;
uint32_t memory;
uint16_t config1;
uint16_t config2;
@@ -73,9 +71,7 @@ typedef struct mach_t {
uint8_t bank_r;
uint16_t shadow_set;
uint16_t shadow_cntl;
int ext_on[2];
int extended_mode;
int compat_mode;
int override_resolution;
struct {
uint8_t line_idx;
@@ -84,6 +80,12 @@ typedef struct mach_t {
uint8_t patt_len;
uint8_t pix_trans[2];
uint8_t eeprom_control;
uint8_t alu_bg_fn;
uint8_t alu_fg_fn;
uint16_t clip_left;
uint16_t clip_right;
uint16_t clip_top;
uint16_t clip_bottom;
uint16_t dest_x_end;
uint16_t dest_x_start;
uint16_t dest_y_end;
@@ -102,14 +104,14 @@ typedef struct mach_t {
uint16_t ge_offset_hi;
uint16_t linedraw_opt;
uint16_t max_waitstates;
uint8_t patt_data_idx;
uint8_t patt_data[0x18];
uint16_t scan_to_x;
uint16_t scratch0;
uint16_t scratch1;
uint16_t test;
uint16_t pattern;
uint16_t test2;
int patt_data_idx_reg;
int patt_data_idx;
int src_y_dir;
int cmd_type;
int block_write_mono_pattern_enable;
@@ -144,9 +146,8 @@ typedef struct mach_t {
int stepx;
int stepy;
int src_stepx;
uint8_t color_pattern[16];
uint8_t color_pattern_full[32];
uint16_t color_pattern_word[8];
uint8_t mono_pattern_normal[16];
uint8_t color_pattern[32];
int mono_pattern[8][8];
uint32_t ge_offset;
uint32_t crt_offset;