Apple-2-SW/dos33fsprogs
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tfv: enable split graphics/text mode emulation

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This commit is contained in:
Vince Weaver 2017-06-24 23:37:00 -04:00
parent f90988da95
commit 632d18a962
2 changed files with 54 additions and 40 deletions
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91
gr-sim/gr-sim.c
View File

@ -9,8 +9,8 @@
#include "apple2_font.h"
/* 40x48 low-res mode */
#define XSIZE 40
#define YSIZE 48
#define GR_XSIZE 40
#define GR_YSIZE 48
#define PIXEL_X_SCALE 14
#define PIXEL_Y_SCALE 8
@ -20,8 +20,8 @@
#define TEXT_X_SCALE 14
#define TEXT_Y_SCALE 16
static int xsize=XSIZE*PIXEL_X_SCALE;
static int ysize=YSIZE*PIXEL_Y_SCALE;
static int xsize=GR_XSIZE*PIXEL_X_SCALE;
static int ysize=GR_YSIZE*PIXEL_Y_SCALE;
static int debug=0;
@ -256,33 +256,57 @@ int grsim_update(void) {
int x,y,i,j;
int bit_set,ch,inverse,flash;
unsigned int *t_pointer;
int text_start,text_end,gr_start,gr_end;
t_pointer=((Uint32 *)sdl_screen->pixels);
text_start=0; text_end=0;
gr_start=0;gr_end=GR_YSIZE;
if (text_mode) {
for(y=0;y<TEXT_YSIZE;y++) {
for(j=0;j<TEXT_Y_SCALE;j++) {
for(x=0;x<TEXT_XSIZE;x++) {
ch=ram[gr_addr_lookup[y]+x];
// printf("%x ",ch);
text_start=0; text_end=TEXT_YSIZE;
gr_start=0; gr_end=0;
}
else if (mixed_graphics) {
text_start=20; text_end=TEXT_YSIZE;
gr_start=0; gr_end=40;
}
if (ch&0x80) {
flash=0;
inverse=0;
ch=ch&0x7f;
}
else if (ch&0x40) {
flash=1;
inverse=0;
ch=ch&0x3f;
}
else {
inverse=1;
flash=0;
ch=ch&0x3f;
}
for(y=gr_start;y<gr_end;y++) {
for(j=0;j<PIXEL_Y_SCALE;j++) {
for(x=0;x<GR_XSIZE;x++) {
for(i=0;i<PIXEL_X_SCALE;i++) {
*t_pointer=color[scrn(x,y)];
t_pointer++;
}
}
}
}
for(i=0;i<TEXT_X_SCALE;i++) {
for(y=text_start;y<text_end;y++) {
for(j=0;j<TEXT_Y_SCALE;j++) {
for(x=0;x<TEXT_XSIZE;x++) {
ch=ram[gr_addr_lookup[y]+x];
// printf("%x ",ch);
if (ch&0x80) {
flash=0;
inverse=0;
ch=ch&0x7f;
}
else if (ch&0x40) {
flash=1;
inverse=0;
ch=ch&0x3f;
}
else {
inverse=1;
flash=0;
ch=ch&0x3f;
}
for(i=0;i<TEXT_X_SCALE;i++) {
/* 14 x 16 */
/* but font is 5x7 */
@ -308,24 +332,13 @@ int grsim_update(void) {
}
t_pointer++;
}
}
}
}
}
else {
for(y=0;y<YSIZE;y++) {
for(j=0;j<PIXEL_Y_SCALE;j++) {
for(x=0;x<XSIZE;x++) {
for(i=0;i<PIXEL_X_SCALE;i++) {
*t_pointer=color[scrn(x,y)];
t_pointer++;
}
}
}
}
}
SDL_UpdateRect(sdl_screen, 0, 0, xsize, ysize);
return 0;
@ -547,7 +560,7 @@ clrsc3:
static void setgr(void) {
// FB40
// SETGR
// SETGR
soft_switch(TXTCLR); // LDA TXTCLR
soft_switch(MIXSET); // LDA MIXSET

3
gr-sim/tfv.c
View File

@ -92,6 +92,7 @@ int main(int argc, char **argv) {
grsim_init();
home();
gr();
/* VMW splash */
@ -129,7 +130,7 @@ int main(int argc, char **argv) {
usleep(20000);
}
basic_vtab(20);
basic_vtab(21);
basic_htab(9);
basic_print("A VMW SOFTWARE PRODUCTION");
grsim_update();