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Redesign of screen

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This commit is contained in:
neauoire 2021-02-18 15:11:02 -08:00
parent ef85f4e8d8
commit 408a73835f
4 changed files with 138 additions and 44 deletions
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6
build.sh
View file

@ -16,9 +16,9 @@ clang-format -i uxn.c
# Emulator
clang-format -i emulator.c
rm -f ./bin/emulator
# cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=int-conversion -Wvla -g -Og -fsanitize=address -fsanitize=undefined uxn.c emulator.c -L/usr/local/lib -lSDL2 -o bin/emulator
cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator
cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=int-conversion -Wvla -g -Og -fsanitize=address -fsanitize=undefined uxn.c emulator.c -L/usr/local/lib -lSDL2 -o bin/emulator
# cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator
# run
./bin/assembler examples/drag.usm bin/boot.rom
./bin/assembler examples/test.usm bin/boot.rom
./bin/emulator bin/boot.rom

117
emulator.c
View file

@ -15,14 +15,16 @@ WITH REGARD TO THIS SOFTWARE.
#include "uxn.h"
#define HOR 32
#define VER 16
#define VER 18
#define PAD 2
#define SZ (HOR * VER * 16)
#define RES (HOR * VER * 16)
typedef unsigned char Uint8;
typedef struct {
Uint8 bg[RES], fg[RES];
} Screen;
int WIDTH = 8 * HOR + 8 * PAD * 2;
int HEIGHT = 8 * (VER + 2) + 8 * PAD * 2;
int HEIGHT = 8 * VER + 8 * PAD * 2;
int FPS = 30, GUIDES = 1, REQDRAW = 0, ZOOM = 2;
Uint32 theme[] = {
@ -55,7 +57,41 @@ SDL_Renderer *gRenderer;
SDL_Texture *gTexture;
Uint32 *pixels;
Device *devconsole, *devscreen, *devmouse, *devkey, *devsprite, *devcontroller;
Screen screen;
Device *devconsole, *devscreen, *devmouse, *devkey, *devsprite, *devcontroller, *devfg;
#pragma mark - Paint
Uint16
rowchr(Uint16 x, Uint16 y)
{
return (y % 8) + ((x / 8 + y / 8 * HOR) * 16);
}
void
paintpixel(Uint8 *dst, Uint16 x, Uint16 y, Uint8 color)
{
Uint16 row = rowchr(x, y), col = x % 8;
if(x >= HOR * 8 || y >= VER * 8 || row > RES - 8)
return;
if(color == 0 || color == 2)
dst[row] &= ~(1UL << (7 - col));
else
dst[row] |= 1UL << (7 - col);
if(color == 0 || color == 1)
dst[row + 8] &= ~(1UL << (7 - col));
else
dst[row + 8] |= 1UL << (7 - col);
}
void
painticn(Uint8 *dst, Uint16 x, Uint16 y, Uint8 *sprite, Uint8 fg)
{
Uint16 v, h;
for(v = 0; v < 8; v++)
for(h = 0; h < 8; h++)
paintpixel(dst, x + h, y + v, ((sprite[v] >> (7 - h)) & 0x1) ? fg : 0);
}
#pragma mark - Helpers
@ -76,13 +112,14 @@ putpixel(Uint32 *dst, int x, int y, int color)
}
void
drawchr(Uint32 *dst, int x, int y, Uint8 *sprite)
drawchr(Uint32 *dst, int x, int y, Uint8 *sprite, Uint8 alpha)
{
int v, h;
for(v = 0; v < 8; v++)
for(h = 0; h < 8; h++) {
int ch1 = ((sprite[v] >> h) & 0x1);
int ch2 = (((sprite[v + 8] >> h) & 0x1) << 1);
Uint8 ch1 = ((sprite[v] >> h) & 0x1);
Uint8 ch2 = (((sprite[v + 8] >> h) & 0x1) << 1);
if(!alpha || (alpha && ch1 + ch2 != 0))
putpixel(dst, x + 7 - h, y + v, ch1 + ch2);
}
}
@ -111,25 +148,27 @@ void
drawdebugger(Uint32 *dst, Uxn *u)
{
Uint8 i;
for(i = 0; i < 0x20; ++i) { /* memory */
Uint8 x = (i % 8) * 3 + 1, y = i / 8 + 1, b = u->ram.dat[i];
for(i = 0; i < 0x10; ++i) { /* memory */
Uint8 x = (i % 8) * 3 + 3, y = i / 8 + 3, b = u->ram.dat[i];
drawicn(dst, x * 8, y * 8, icons[(b >> 4) & 0xf], 1, 0);
drawicn(dst, x * 8 + 8, y * 8, icons[b & 0xf], 1, 0);
}
for(i = 0; i < 0x10; ++i) { /* memory */
Uint8 x = (i % 8) * 3 + 1, y = i / 8 + 0x13, b = u->wst.dat[i];
y = i / 8 + 0x11, b = u->wst.dat[i];
drawicn(dst, x * 8, y * 8, icons[(b >> 4) & 0xf], 1 + (u->wst.ptr == i), 0);
drawicn(dst, x * 8 + 8, y * 8, icons[b & 0xf], 1 + (u->wst.ptr == i), 0);
}
drawicn(dst, 25 * 8, 8, icons[getflag(&u->status, FLAG_HALT) != 0], 2, 0);
drawicn(dst, 26 * 8, 8, icons[getflag(&u->status, FLAG_SHORT) != 0], 2, 0);
drawicn(dst, 27 * 8, 8, icons[getflag(&u->status, FLAG_SIGN) != 0], 2, 0);
drawicn(dst, 28 * 8, 8, icons[getflag(&u->status, FLAG_COND) != 0], 2, 0);
}
void
redraw(Uint32 *dst, Uxn *u)
{
int x, y;
/* merge layers */
for(y = 0; y < VER; ++y)
for(x = 0; x < HOR; ++x) {
int key = (y * HOR + x) * 16;
drawchr(dst, (x + PAD) * 8, (y + PAD) * 8, &screen.bg[key], 0);
drawchr(dst, (x + PAD) * 8, (y + PAD) * 8, &screen.fg[key], 1);
}
if(GUIDES)
drawdebugger(dst, u);
SDL_UpdateTexture(gTexture, NULL, dst, WIDTH * sizeof(Uint32));
@ -170,14 +209,23 @@ init(void)
if(!(pixels = (Uint32 *)malloc(WIDTH * HEIGHT * sizeof(Uint32))))
return error("Pixels", "Failed to allocate memory");
clear(pixels);
SDL_ShowCursor(SDL_DISABLE);
return 1;
}
void
domouse(SDL_Event *event)
{
int x = event->motion.x / ZOOM;
int y = event->motion.y / ZOOM;
int x = (event->motion.x - PAD * 8 * ZOOM) / ZOOM;
int y = (event->motion.y - PAD * 8 * ZOOM) / ZOOM;
if(x < 0)
x = 0;
else if(x > WIDTH)
x = WIDTH - 1;
if(y < 0)
y = 0;
else if(y > HEIGHT)
y = HEIGHT - 1;
devmouse->mem[0] = (x >> 8) & 0xff;
devmouse->mem[1] = x & 0xff;
devmouse->mem[2] = (y >> 8) & 0xff;
@ -263,15 +311,31 @@ Uint8
spritew(Device *d, Memory *m, Uint8 b)
{
d->mem[d->ptr++] = b;
if(d->ptr > 7) {
if(d->ptr == 6) {
int i;
Uint16 x = (d->mem[2] << 8) + d->mem[3];
Uint16 y = (d->mem[0] << 8) + d->mem[1];
Uint8 *chr = &m->dat[(d->mem[4] << 8) + d->mem[5]];
if(!d->mem[6])
drawchr(pixels, x, y, chr);
else
drawicn(pixels, x, y, chr, d->mem[6] & 0xf, (d->mem[6] >> 4) & 0xf);
if(d->mem[7])
Uint16 a = (d->mem[4] << 8) + d->mem[5];
Uint16 key = (x + y * HOR) * 16;
for(i = 0; i < 16; ++i)
screen.bg[key + i] = m->dat[a + i];
REQDRAW = 1;
d->ptr = 0;
}
return 0;
}
Uint8 /* TODO: merge this device into screen/sprite */
fgw(Device *d, Memory *m, Uint8 b)
{
d->mem[d->ptr++] = b;
if(d->ptr == 7) {
Uint16 x = (d->mem[2] << 8) + d->mem[3];
Uint16 y = (d->mem[0] << 8) + d->mem[1];
Uint16 a = (d->mem[4] << 8) + d->mem[5];
Uint8 clr = d->mem[6] & 0xf;
Uint8 layer = d->mem[6] >> 4 & 0xf;
painticn(layer ? screen.fg : screen.bg, x, y, &m->dat[a], clr);
REQDRAW = 1;
d->ptr = 0;
}
@ -333,6 +397,7 @@ main(int argc, char **argv)
devcontroller = portuxn(&u, "controller", defaultrw, defaultrw);
devkey = portuxn(&u, "key", defaultrw, consolew);
devmouse = portuxn(&u, "mouse", defaultrw, defaultrw);
devfg = portuxn(&u, "fg", defaultrw, fgw);
start(&u);
quit();

12
examples/sprite.usm
View file

@ -7,16 +7,16 @@
#01 =dev/w ( set dev/write to screen )
#02 =dev/w ( set dev/write to sprite )
#0110 ,cursor_icn #0020 #0038 ,drawsprite JSR
#0010 ,rounds_chr #0028 #0038 ,drawsprite JSR
#3210 ,cursor_icn #0020 #0040 ,drawsprite JSR
#0010 ,rounds_chr #0028 #0040 ,drawsprite JSR
#0110 ,cursor_icn #20 #38 ,drawsprite JSR
#0010 ,rounds_chr #28 #38 ,drawsprite JSR
#3210 ,cursor_icn #20 #40 ,drawsprite JSR
#0010 ,rounds_chr #28 #40 ,drawsprite JSR
BRK
@drawsprite
IOW2 ( y short )
IOW2 ( x short )
IOW ( y byte )
IOW ( x byte )
IOW2 ( sprite address )
IOW2 ( redraw byte )
RTS

41
examples/test.usm
View file

@ -1,21 +1,50 @@
( blank )
( sprite )
:dev/r fff8 ( std read port )
:dev/w fff9 ( std write port )
;x 1 ;y 2
;mousex 2 ;mousey 2 ;lastx 2 ;lasty 2 ;color 1
|0100 @RESET
#12 #34 WSR2
,test JSR
#05 =dev/r ( set dev/read mouse )
#02 =dev/w ( set dev/write to sprite )
#00 ,rounds_chr #0004 #0004 ,drawsprite JSR
BRK
@test
|c000 @FRAME
#06 =dev/w ( set dev/write to sprite )
( clear last cursor )
#10 ,clear_icn ~lastx ~lasty ,drawsprite JSR
( record mouse values )
#00 IOR2 =mousex #02 IOR2 =mousey
#04 IOR #11 ADD =color
~color ,cursor_icn ~mousex ~mousey ,drawsprite JSR
~mousex =lastx ~mousey =lasty
BRK
@drawsprite
IOW2 ( y byte )
IOW2 ( x byte )
IOW2 ( sprite address )
IOW ( layer-color )
RTS
|c000 @FRAME BRK
|0200 @SPRITESHEET
@rounds_chr [ 3844 92aa 9244 3800 0038 7c7c 7c38 0000 ]
@cursor_icn [ 80c0 e0f0 f8e0 1000 ]
@clear_icn [ 0000 0000 0000 0000 ]
BRK
|d000 @ERROR BRK
|FFFA .RESET .FRAME .ERROR