claunia/86Box
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Huge fixes to 8514/A compatibles:

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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.
This commit is contained in:
TC1995
2024-01-05 21:22:01 +01:00
parent 73afc194ea
commit 4b52a514bd
3 changed files with 703 additions and 620 deletions
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8
src/include/86box/vid_8514a.h
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@@ -67,13 +67,14 @@ typedef struct ibm8514_t {
uint16_t advfunc_cntl;
uint8_t ext_advfunc_cntl;
uint16_t cur_y;
uint16_t cur_y_bitres;
uint16_t cur_x;
uint16_t cur_x_bitres;
int16_t destx;
int16_t desty;
int16_t desty_axstp;
int16_t destx_distp;
int16_t err_term;
int16_t maj_axis_pcnt;
int16_t maj_axis_pcnt_no_limit;
uint16_t cmd;
uint16_t cmd_back;
uint16_t short_stroke;
@@ -100,7 +101,9 @@ typedef struct ibm8514_t {
int sys_cnt2;
int temp_cnt;
int16_t cx;
int16_t cx_back;
int16_t cy;
int16_t oldcx;
int16_t oldcy;
int16_t sx;
int16_t sy;
@@ -133,6 +136,7 @@ typedef struct ibm8514_t {
int fill_state;
int xdir;
int ydir;
int linedraw;
uint32_t ge_offset;
} accel;