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(screen) Housekeeping

This commit is contained in:
Devine Lu Linvega 2023-05-04 20:17:38 -07:00
parent 98bd2a7849
commit d80885ee22
2 changed files with 9 additions and 9 deletions
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15
src/devices/screen.c
View File

@ -25,7 +25,7 @@ static Uint8 blending[4][16] = {
{2, 3, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2}};
static void
screen_change(Uint16 x1, Uint16 y1, Uint16 x2, Uint16 y2)
screen_change(int x1, int y1, int x2, int y2)
{
if(x1 < uxn_screen.x1) uxn_screen.x1 = x1;
if(y1 < uxn_screen.y1) uxn_screen.y1 = y1;
@ -34,7 +34,7 @@ screen_change(Uint16 x1, Uint16 y1, Uint16 x2, Uint16 y2)
}
static void
screen_fill(Uint8 *pixels, Uint16 x1, Uint16 y1, Uint16 x2, Uint16 y2, Uint8 color)
screen_fill(Uint8 *pixels, int x1, int y1, int x2, int y2, int color)
{
int x, y, width = uxn_screen.width, height = uxn_screen.height;
for(y = y1; y < y2 && y < height; y++)
@ -43,7 +43,7 @@ screen_fill(Uint8 *pixels, Uint16 x1, Uint16 y1, Uint16 x2, Uint16 y2, Uint8 col
}
static void
screen_blit(Uint8 *pixels, Uint16 x1, Uint16 y1, Uint8 *ram, Uint16 addr, Uint8 color, Uint8 flipx, Uint8 flipy, Uint8 twobpp)
screen_blit(Uint8 *pixels, Uint8 *ram, Uint16 addr, int x1, int y1, int color, int flipx, int flipy, int twobpp)
{
int v, h, width = uxn_screen.width, height = uxn_screen.height, opaque = (color % 5) || !color;
for(v = 0; v < 8; v++) {
@ -99,12 +99,13 @@ screen_resize(Uint16 width, Uint16 height)
void
screen_redraw(void)
{
Uint32 i, x, y, w = uxn_screen.width, palette[16], *pixels = uxn_screen.pixels;
Uint8 *fg = uxn_screen.fg, *bg = uxn_screen.bg;
Uint32 palette[16], *pixels = uxn_screen.pixels;
int i, x, y, w = uxn_screen.width, h = uxn_screen.height;
int x1 = uxn_screen.x1;
int y1 = uxn_screen.y1;
int x2 = uxn_screen.x2 > uxn_screen.width ? uxn_screen.width : uxn_screen.x2;
int y2 = uxn_screen.y2 > uxn_screen.height ? uxn_screen.height : uxn_screen.y2;
int x2 = uxn_screen.x2 > w ? w : uxn_screen.x2;
int y2 = uxn_screen.y2 > h ? h : uxn_screen.y2;
for(i = 0; i < 16; i++)
palette[i] = uxn_screen.palette[(i >> 2) ? (i >> 2) : (i & 3)];
for(y = y1; y < y2; y++)
@ -178,7 +179,7 @@ screen_deo(Uint8 *ram, Uint8 *d, Uint8 port)
Uint16 dy = (move & 0x2) << 2;
Uint8 *layer = (ctrl & 0x40) ? uxn_screen.fg : uxn_screen.bg;
for(i = 0; i <= length; i++) {
screen_blit(layer, x + dy * i, y + dx * i, ram, addr, ctrl & 0xf, ctrl & 0x10, ctrl & 0x20, twobpp);
screen_blit(layer, ram, addr, x + dy * i, y + dx * i, ctrl & 0xf, ctrl & 0x10, ctrl & 0x20, twobpp);
addr += (move & 0x04) << (1 + twobpp);
}
screen_change(x, y, x + dy * length + 8, y + dx * length + 8);

3
src/devices/screen.h
View File

@ -11,8 +11,7 @@ WITH REGARD TO THIS SOFTWARE.
*/
typedef struct UxnScreen {
Uint32 palette[4], *pixels;
Uint16 width, height, x1, y1, x2, y2;
Uint32 palette[4], *pixels, width, height, x1, y1, x2, y2;
Uint8 *fg, *bg;
} UxnScreen;