analog/v2-analog-rev1/vga/render.c
2023-01-07 02:15:21 -05:00

84 lines
2.6 KiB
C

#include <string.h>
#include <pico/stdlib.h>
#include <hardware/timer.h>
#include "common/config.h"
#include "vga/vgabuf.h"
#include "vga/render.h"
#include "vga/character_rom.h"
#include "vga/vgaout.h"
uint16_t text_fore;
uint16_t text_back;
uint16_t text_border;
void render_init() {
int i;
// Initialize the character generator ROM
memcpy(character_rom, default_character_rom, sizeof(character_rom));
soft_switches = 0;
terminal_switches = TERMINAL_TEST;
render_test_init();
}
uint32_t testdone=0;
void __noinline __time_critical_func(render_loop)() {
while(v2mode == MODE_VGACARD) {
update_text_flasher();
text_fore = lores_palette[TERMINAL_FORE];
text_back = lores_palette[TERMINAL_BACK];
text_border = lores_palette[TERMINAL_BORDER];
if(terminal_switches & TERMINAL_TEST) {
render_testpattern();
// Automatically dismiss the test pattern when the Apple II initializes
// soft switches during startup.
if(((soft_switches & SOFTSW_MODE_MASK) != 0) && (testdone == 0)) {
terminal_switches &= (~(uint32_t)TERMINAL_TEST);
testdone = 1;
render_about_init();
}
} else {
switch(soft_switches & SOFTSW_MODE_MASK) {
case 0:
if(terminal_switches & TERMINAL_DGR) {
render_dgr();
} else {
render_lores();
}
break;
case SOFTSW_MIX_MODE:
if(terminal_switches & (TERMINAL_80COL | TERMINAL_DGR) == (TERMINAL_80COL | TERMINAL_DGR)) {
render_mixed_dgr();
} else {
render_mixed_lores();
}
break;
case SOFTSW_HIRES_MODE:
if(terminal_switches & TERMINAL_DGR) {
render_dhgr();
} else {
render_hires();
}
break;
case SOFTSW_HIRES_MODE|SOFTSW_MIX_MODE:
if(terminal_switches & TERMINAL_DGR) {
render_mixed_dhgr();
} else {
render_mixed_hires();
}
break;
default:
if(terminal_switches & TERMINAL_80COL) {
render_terminal();
} else {
render_text();
}
break;
}
}
}
}