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S3 fixes:

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Bit 11 of ports 0x82e8 and 0x86e8 (Current X and Current Y positions registers, respectively) are taken into account again without conflicting with OS/2 Warp 3/4's software cursor, fixes blitting issues with Neptune Build 5111.1's S3 driver and possibly some other builds and other stuff.
This commit is contained in:
TC1995
2023-10-17 19:33:07 +02:00
parent b73364bb38
commit da5b93d980
1 changed files with 40 additions and 47 deletions
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87
src/video/vid_s3.c
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@@ -246,10 +246,10 @@ typedef struct s3_t {
uint8_t pix_trans[4];
int ssv_state;
int cx, cy;
int px, py;
int sx, sy;
int dx, dy;
int16_t cx, cy;
int16_t px, py;
int16_t sx, sy;
int16_t dx, dy;
uint32_t src, dest, pattern;
int poly_cx, poly_cx2;
@@ -262,7 +262,6 @@ typedef struct s3_t {
uint32_t dat_buf;
int dat_count;
int b2e8_pix, temp_cnt;
uint8_t cur_x_bit12, cur_y_bit12;
int ssv_len;
uint8_t ssv_dir;
uint8_t ssv_draw;
@@ -712,15 +711,12 @@ s3_accel_out_fifo(s3_t *s3, uint16_t port, uint8_t val)
switch (port) {
case 0x8148:
case 0x82e8:
s3->accel.cur_y_bitres = (s3->accel.cur_y_bitres & 0xff00) | val;
s3->accel.cur_y = (s3->accel.cur_y & 0xf00) | val;
s3->accel.poly_cy = s3->accel.cur_y;
break;
case 0x8149:
case 0x82e9:
s3->accel.cur_y_bitres = (s3->accel.cur_y_bitres & 0xff) | (val << 8);
s3->accel.cur_y = (s3->accel.cur_y & 0xff) | ((val & 0x0f) << 8);
s3->accel.cur_y_bit12 = val & 0x10;
s3->accel.poly_cy = s3->accel.cur_y;
break;
case 0x814a:
@@ -736,16 +732,13 @@ s3_accel_out_fifo(s3_t *s3, uint16_t port, uint8_t val)
case 0x8548:
case 0x86e8:
s3->accel.cur_x_bitres = (s3->accel.cur_x_bitres & 0xff00) | val;
s3->accel.cur_x = (s3->accel.cur_x & 0xf00) | val;
s3->accel.poly_cx = s3->accel.cur_x << 20;
s3->accel.poly_x = s3->accel.poly_cx >> 20;
break;
case 0x8549:
case 0x86e9:
s3->accel.cur_x_bitres = (s3->accel.cur_x_bitres & 0xff) | (val << 8);
s3->accel.cur_x = (s3->accel.cur_x & 0xff) | ((val & 0x0f) << 8);
s3->accel.cur_x_bit12 = val & 0x10;
s3->accel.poly_cx = s3->accel.poly_x = s3->accel.cur_x << 20;
s3->accel.poly_x = s3->accel.poly_cx >> 20;
break;
@@ -884,14 +877,14 @@ s3_accel_out_fifo(s3_t *s3, uint16_t port, uint8_t val)
s3->accel.short_stroke = (s3->accel.short_stroke & 0xff) | (val << 8);
s3->accel.ssv_state = 1;
s3->accel.cx = s3->accel.cur_x & 0x7ff;
s3->accel.cy = s3->accel.cur_y & 0x7ff;
s3->accel.cx = s3->accel.cur_x & 0xfff;
s3->accel.cy = s3->accel.cur_y & 0xfff;
if (s3->accel.cur_x & 0x800) {
s3->accel.cx |= ~0x7ff;
if (s3->accel.cur_x & 0x1000) {
s3->accel.cx |= ~0xfff;
}
if (s3->accel.cur_y & 0x800) {
s3->accel.cy |= ~0x7ff;
if (s3->accel.cur_y & 0x1000) {
s3->accel.cy |= ~0xfff;
}
if (s3->accel.cmd & 0x1000) {
@@ -1426,14 +1419,14 @@ s3_accel_out_fifo_w(s3_t *s3, uint16_t port, uint16_t val)
s3->accel.short_stroke = val;
s3->accel.ssv_state = 1;
s3->accel.cx = s3->accel.cur_x & 0x7ff;
s3->accel.cy = s3->accel.cur_y & 0x7ff;
s3->accel.cx = s3->accel.cur_x & 0xfff;
s3->accel.cy = s3->accel.cur_y & 0xfff;
if (s3->accel.cur_x & 0x800) {
s3->accel.cx |= ~0x7ff;
if (s3->accel.cur_x & 0x1000) {
s3->accel.cx |= ~0xfff;
}
if (s3->accel.cur_y & 0x800) {
s3->accel.cy |= ~0x7ff;
if (s3->accel.cur_y & 0x1000) {
s3->accel.cy |= ~0xfff;
}
if (s3->accel.cmd & 0x1000) {
@@ -6380,14 +6373,14 @@ s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, s3_
case 1: /*Draw line*/
if (!cpu_input) {
s3->accel.cx = s3->accel.cur_x & 0x7ff;
s3->accel.cy = s3->accel.cur_y & 0x7ff;
s3->accel.cx = s3->accel.cur_x & 0xfff;
s3->accel.cy = s3->accel.cur_y & 0xfff;
if (s3->accel.cur_x & 0x800)
s3->accel.cx |= ~0x7ff;
if (s3->accel.cur_x & 0x1000)
s3->accel.cx |= ~0xfff;
if (s3->accel.cur_y & 0x800)
s3->accel.cy |= ~0x7ff;
if (s3->accel.cur_y & 0x1000)
s3->accel.cy |= ~0xfff;
s3->accel.sy = s3->accel.maj_axis_pcnt;
@@ -6615,14 +6608,14 @@ s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, s3_
{
s3->accel.sx = s3->accel.maj_axis_pcnt & 0xfff;
s3->accel.sy = s3->accel.multifunc[0] & 0xfff;
s3->accel.cx = s3->accel.cur_x & 0x7ff;
s3->accel.cy = s3->accel.cur_y & 0x7ff;
s3->accel.cx = s3->accel.cur_x & 0xfff;
s3->accel.cy = s3->accel.cur_y & 0xfff;
if (s3->accel.cur_x & 0x800) {
s3->accel.cx |= ~0x7ff;
if (s3->accel.cur_x & 0x1000) {
s3->accel.cx |= ~0xfff;
}
if (s3->accel.cur_y & 0x800) {
s3->accel.cy |= ~0x7ff;
if (s3->accel.cur_y & 0x1000) {
s3->accel.cy |= ~0xfff;
}
s3->accel.dest = dstbase + s3->accel.cy * s3->width;
@@ -6844,14 +6837,14 @@ s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, s3_
if (s3->accel.desty_axstp & 0x800)
s3->accel.dy |= ~0x7ff;
s3->accel.cx = s3->accel.cur_x & 0x7ff;
s3->accel.cy = s3->accel.cur_y & 0x7ff;
s3->accel.cx = s3->accel.cur_x & 0xfff;
s3->accel.cy = s3->accel.cur_y & 0xfff;
if (s3->accel.cur_x & 0x800) {
s3->accel.cx |= ~0x7ff;
if (s3->accel.cur_x & 0x1000) {
s3->accel.cx |= ~0xfff;
}
if (s3->accel.cur_y & 0x800) {
s3->accel.cy |= ~0x7ff;
if (s3->accel.cur_y & 0x1000) {
s3->accel.cy |= ~0xfff;
}
s3->accel.src = srcbase + s3->accel.cy * s3->width;
@@ -7007,10 +7000,10 @@ s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, s3_
s3->accel.dy |= ~0xfff;
s3->accel.cx = s3->accel.cur_x & 0xfff;
if (s3->accel.cur_x_bit12)
if (s3->accel.cur_x & 0x1000)
s3->accel.cx |= ~0xfff;
s3->accel.cy = s3->accel.cur_y & 0xfff;
if (s3->accel.cur_y_bit12)
if (s3->accel.cur_y & 0x1000)
s3->accel.cy |= ~0xfff;
/*Align source with destination*/
@@ -7132,10 +7125,10 @@ s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, s3_
s3->accel.dy |= ~0xfff;
s3->accel.cx = s3->accel.cur_x;
if (s3->accel.cur_x_bit12)
if (s3->accel.cur_x & 0x1000)
s3->accel.cx |= ~0xfff;
s3->accel.cy = s3->accel.cur_y;
if (s3->accel.cur_y_bit12)
if (s3->accel.cur_y & 0x1000)
s3->accel.cy |= ~0xfff;
}
@@ -7323,10 +7316,10 @@ s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, s3_
s3->accel.dy |= ~0xfff;
s3->accel.cx = s3->accel.cur_x & 0xfff;
if (s3->accel.cur_x_bit12)
if (s3->accel.cur_x & 0x1000)
s3->accel.cx |= ~0xfff;
s3->accel.cy = s3->accel.cur_y & 0xfff;
if (s3->accel.cur_y_bit12)
if (s3->accel.cur_y & 0x1000)
s3->accel.cy |= ~0xfff;
s3->accel.px = s3->accel.pat_x & 0xfff;