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hgr: better, but still not great

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good enough for now though
This commit is contained in:
Vince Weaver 2018-07-02 10:47:13 -04:00
parent 17faceafb7
commit 81be689dbe
1 changed files with 37 additions and 9 deletions
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46
gr-sim/gr-sim.c
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@ -199,6 +199,17 @@ static unsigned int hcolor[8]={
0xffffff, /* 7 white */
};
static unsigned int hcolor_hack[8][2]={
{0,0}, // 0000 KK
{0,0}, // 0010 KK
{1,1}, // 0100 OO
{1,3}, // 0110 OW
{2,0}, // 1000 BK
{2,2}, // 1010 BB
{3,3}, // 1100 WW
{3,3}, // 1110 WW
};
/* a = ycoord */
@ -402,7 +413,7 @@ void draw_hires(unsigned int *out_pointer,int y_start, int y_end) {
int gr_addr;
int temp_col;
unsigned int *t_pointer;
int last_pixel,current_byte,current_pixel,odd=0;
int last_last_pixel,last_pixel,current_byte,current_pixel,odd=0;
t_pointer=out_pointer+(y_start*280*HGR_X_SCALE*HGR_Y_SCALE);
@ -419,6 +430,7 @@ void draw_hires(unsigned int *out_pointer,int y_start, int y_end) {
gr_addr+=0x2000;
}
last_pixel=0;
last_last_pixel=0;
odd=0;
for(xx=0;xx<HGR_XSIZE/7;xx++) {
@ -432,18 +444,34 @@ void draw_hires(unsigned int *out_pointer,int y_start, int y_end) {
for(i=0;i<7;i++) {
current_pixel=!!(current_byte&(1<<i));
temp_col=((!!(current_byte&0x80))<<2)|
(last_pixel<<1)|
if (!odd) {
int pattern;
pattern=last_last_pixel<<2 |
last_pixel<<1|
current_pixel;
temp_col=((!!(current_byte&0x80))<<2)|
hcolor_hack[pattern][0];
// printf("Temp col=%d\n",temp_col);
if (odd)
for(k=0;k<HGR_X_SCALE;k++) {
*t_pointer=hcolor[temp_col];
t_pointer++;
*t_pointer=hcolor[temp_col];
t_pointer++;
// for(k=0;k<HGR_X_SCALE;k++) {
*t_pointer=hcolor[temp_col];
t_pointer++;
*t_pointer=hcolor[temp_col];
t_pointer++;
temp_col=((!!(current_byte&0x80))<<2)|
hcolor_hack[pattern][1];
*t_pointer=hcolor[temp_col];
t_pointer++;
*t_pointer=hcolor[temp_col];
t_pointer++;
}
odd=!odd;
last_last_pixel=last_pixel;
last_pixel=current_pixel;
}