etc
/
uxn
mirror of https://git.sr.ht/~rabbits/uxn
0
1
Fork 0
Code Issues Projects Releases Wiki Activity

Removed screen_wipe

This commit is contained in:
Devine Lu Linvega 2023-04-12 14:35:48 -07:00
parent be138f5952
commit 540847694e
1 changed files with 13 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
src/devices/screen.c
View File

@ -31,6 +31,7 @@ clamp(int val, int min, int max)
static void
screen_write(UxnScreen *p, Layer *layer, Uint16 x, Uint16 y, Uint8 color)
{
if(x < p->width && y < p->height) {
Uint32 i = x + y * p->width;
if(color != layer->pixels[i]) {
@ -49,12 +50,6 @@ screen_fill(UxnScreen *p, Layer *layer, Uint16 x1, Uint16 y1, Uint16 x2, Uint16
screen_write(p, layer, h, v, color);
}
static void
screen_wipe(UxnScreen *p, Layer *layer, Uint16 x, Uint16 y)
{
screen_fill(p, layer, x, y, x + 8, y + 8, 0);
}
static void
screen_blit(UxnScreen *p, Layer *layer, Uint16 x, Uint16 y, Uint8 *sprite, Uint8 color, Uint8 flipx, Uint8 flipy, Uint8 twobpp)
{
@ -79,9 +74,9 @@ screen_palette(UxnScreen *p, Uint8 *addr)
int i, shift;
for(i = 0, shift = 4; i < 4; ++i, shift ^= 4) {
Uint8
r = (addr[0 + i / 2] >> shift) & 0x0f,
g = (addr[2 + i / 2] >> shift) & 0x0f,
b = (addr[4 + i / 2] >> shift) & 0x0f;
r = (addr[0 + i / 2] >> shift) & 0xf,
g = (addr[2 + i / 2] >> shift) & 0xf,
b = (addr[4 + i / 2] >> shift) & 0xf;
p->palette[i] = 0x0f000000 | r << 16 | g << 8 | b;
p->palette[i] |= p->palette[i] << 4;
}
@ -143,9 +138,10 @@ screen_deo(Uint8 *ram, Uint8 *d, Uint8 port)
case 0xe: {
Uint16 x = PEEK2(d + 0x8), y = PEEK2(d + 0xa);
Layer *layer = (d[0xf] & 0x40) ? &uxn_screen.fg : &uxn_screen.bg;
if(d[0xe] & 0x80)
screen_fill(&uxn_screen, layer, (d[0xe] & 0x10) ? 0 : x, (d[0xe] & 0x20) ? 0 : y, (d[0xe] & 0x10) ? x : uxn_screen.width, (d[0xe] & 0x20) ? y : uxn_screen.height, d[0xe] & 0x3);
else {
if(d[0xe] & 0x80) {
Uint8 xflip = d[0xe] & 0x10, yflip = d[0xe] & 0x20;
screen_fill(&uxn_screen, layer, xflip ? 0 : x, yflip ? 0 : y, xflip ? x : uxn_screen.width, yflip ? y : uxn_screen.height, d[0xe] & 0x3);
} else {
screen_write(&uxn_screen, layer, x, y, d[0xe] & 0x3);
if(d[0x6] & 0x1) POKE2(d + 0x8, x + 1); /* auto x+1 */
if(d[0x6] & 0x2) POKE2(d + 0xa, y + 1); /* auto y+1 */
@ -154,17 +150,17 @@ screen_deo(Uint8 *ram, Uint8 *d, Uint8 port)
}
case 0xf: {
Uint16 x = PEEK2(d + 0x8), y = PEEK2(d + 0xa), dx, dy, addr = PEEK2(d + 0xc);
Uint8 i, n, twobpp = !!(d[0xf] & 0x80);
Uint8 i, n = d[0x6] >> 4, twobpp = !!(d[0xf] & 0x80);
Layer *layer = (d[0xf] & 0x40) ? &uxn_screen.fg : &uxn_screen.bg;
n = d[0x6] >> 4;
dx = (d[0x6] & 0x01) << 3;
dy = (d[0x6] & 0x02) << 2;
if(addr > 0x10000 - ((n + 1) << (3 + twobpp)))
return;
for(i = 0; i <= n; i++) {
if(!(d[0xf] & 0xf))
screen_wipe(&uxn_screen, layer, x + dy * i, y + dx * i);
else {
if(!(d[0xf] & 0xf)) {
Uint16 ex = x + dy * i, ey = y + dx * i;
screen_fill(&uxn_screen, layer, ex, ey, ex + 8, ey + 8, 0);
} else {
screen_blit(&uxn_screen, layer, x + dy * i, y + dx * i, &ram[addr], d[0xf] & 0xf, d[0xf] & 0x10, d[0xf] & 0x20, twobpp);
addr += (d[0x6] & 0x04) << (1 + twobpp);
}