mirror of https://git.sr.ht/~rabbits/uxn
Redesign of screen
This commit is contained in:
neauoire
parent
ef85f4e8d8
commit
408a73835f
6
build.sh
6
build.sh
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@ -16,9 +16,9 @@ clang-format -i uxn.c
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# Emulator
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clang-format -i emulator.c
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rm -f ./bin/emulator
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# 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
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cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator
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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
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# cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator
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# run
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./bin/assembler examples/drag.usm bin/boot.rom
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./bin/assembler examples/test.usm bin/boot.rom
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./bin/emulator bin/boot.rom
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121
emulator.c
121
emulator.c
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@ -15,14 +15,16 @@ WITH REGARD TO THIS SOFTWARE.
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#include "uxn.h"
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#define HOR 32
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#define VER 16
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#define VER 18
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#define PAD 2
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#define SZ (HOR * VER * 16)
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#define RES (HOR * VER * 16)
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typedef unsigned char Uint8;
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typedef struct {
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Uint8 bg[RES], fg[RES];
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} Screen;
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int WIDTH = 8 * HOR + 8 * PAD * 2;
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int HEIGHT = 8 * (VER + 2) + 8 * PAD * 2;
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int HEIGHT = 8 * VER + 8 * PAD * 2;
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int FPS = 30, GUIDES = 1, REQDRAW = 0, ZOOM = 2;
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Uint32 theme[] = {
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@ -55,7 +57,41 @@ SDL_Renderer *gRenderer;
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SDL_Texture *gTexture;
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Uint32 *pixels;
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Device *devconsole, *devscreen, *devmouse, *devkey, *devsprite, *devcontroller;
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Screen screen;
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Device *devconsole, *devscreen, *devmouse, *devkey, *devsprite, *devcontroller, *devfg;
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#pragma mark - Paint
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Uint16
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rowchr(Uint16 x, Uint16 y)
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{
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return (y % 8) + ((x / 8 + y / 8 * HOR) * 16);
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}
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void
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paintpixel(Uint8 *dst, Uint16 x, Uint16 y, Uint8 color)
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{
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Uint16 row = rowchr(x, y), col = x % 8;
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if(x >= HOR * 8 || y >= VER * 8 || row > RES - 8)
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return;
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if(color == 0 || color == 2)
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dst[row] &= ~(1UL << (7 - col));
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else
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dst[row] |= 1UL << (7 - col);
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if(color == 0 || color == 1)
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dst[row + 8] &= ~(1UL << (7 - col));
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else
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dst[row + 8] |= 1UL << (7 - col);
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}
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void
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painticn(Uint8 *dst, Uint16 x, Uint16 y, Uint8 *sprite, Uint8 fg)
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{
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Uint16 v, h;
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for(v = 0; v < 8; v++)
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for(h = 0; h < 8; h++)
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paintpixel(dst, x + h, y + v, ((sprite[v] >> (7 - h)) & 0x1) ? fg : 0);
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}
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#pragma mark - Helpers
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@ -76,14 +112,15 @@ putpixel(Uint32 *dst, int x, int y, int color)
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}
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void
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drawchr(Uint32 *dst, int x, int y, Uint8 *sprite)
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drawchr(Uint32 *dst, int x, int y, Uint8 *sprite, Uint8 alpha)
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{
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int v, h;
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for(v = 0; v < 8; v++)
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for(h = 0; h < 8; h++) {
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int ch1 = ((sprite[v] >> h) & 0x1);
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int ch2 = (((sprite[v + 8] >> h) & 0x1) << 1);
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putpixel(dst, x + 7 - h, y + v, ch1 + ch2);
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Uint8 ch1 = ((sprite[v] >> h) & 0x1);
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Uint8 ch2 = (((sprite[v + 8] >> h) & 0x1) << 1);
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if(!alpha || (alpha && ch1 + ch2 != 0))
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putpixel(dst, x + 7 - h, y + v, ch1 + ch2);
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}
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}
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@ -111,25 +148,27 @@ void
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drawdebugger(Uint32 *dst, Uxn *u)
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{
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Uint8 i;
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for(i = 0; i < 0x20; ++i) { /* memory */
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Uint8 x = (i % 8) * 3 + 1, y = i / 8 + 1, b = u->ram.dat[i];
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for(i = 0; i < 0x10; ++i) { /* memory */
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Uint8 x = (i % 8) * 3 + 3, y = i / 8 + 3, b = u->ram.dat[i];
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drawicn(dst, x * 8, y * 8, icons[(b >> 4) & 0xf], 1, 0);
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drawicn(dst, x * 8 + 8, y * 8, icons[b & 0xf], 1, 0);
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}
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for(i = 0; i < 0x10; ++i) { /* memory */
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Uint8 x = (i % 8) * 3 + 1, y = i / 8 + 0x13, b = u->wst.dat[i];
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y = i / 8 + 0x11, b = u->wst.dat[i];
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drawicn(dst, x * 8, y * 8, icons[(b >> 4) & 0xf], 1 + (u->wst.ptr == i), 0);
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drawicn(dst, x * 8 + 8, y * 8, icons[b & 0xf], 1 + (u->wst.ptr == i), 0);
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}
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drawicn(dst, 25 * 8, 8, icons[getflag(&u->status, FLAG_HALT) != 0], 2, 0);
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drawicn(dst, 26 * 8, 8, icons[getflag(&u->status, FLAG_SHORT) != 0], 2, 0);
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drawicn(dst, 27 * 8, 8, icons[getflag(&u->status, FLAG_SIGN) != 0], 2, 0);
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drawicn(dst, 28 * 8, 8, icons[getflag(&u->status, FLAG_COND) != 0], 2, 0);
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}
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void
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redraw(Uint32 *dst, Uxn *u)
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{
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int x, y;
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/* merge layers */
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for(y = 0; y < VER; ++y)
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for(x = 0; x < HOR; ++x) {
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int key = (y * HOR + x) * 16;
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drawchr(dst, (x + PAD) * 8, (y + PAD) * 8, &screen.bg[key], 0);
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drawchr(dst, (x + PAD) * 8, (y + PAD) * 8, &screen.fg[key], 1);
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}
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if(GUIDES)
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drawdebugger(dst, u);
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SDL_UpdateTexture(gTexture, NULL, dst, WIDTH * sizeof(Uint32));
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@ -170,14 +209,23 @@ init(void)
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if(!(pixels = (Uint32 *)malloc(WIDTH * HEIGHT * sizeof(Uint32))))
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return error("Pixels", "Failed to allocate memory");
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clear(pixels);
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SDL_ShowCursor(SDL_DISABLE);
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return 1;
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}
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void
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domouse(SDL_Event *event)
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{
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int x = event->motion.x / ZOOM;
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int y = event->motion.y / ZOOM;
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int x = (event->motion.x - PAD * 8 * ZOOM) / ZOOM;
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int y = (event->motion.y - PAD * 8 * ZOOM) / ZOOM;
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if(x < 0)
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x = 0;
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else if(x > WIDTH)
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x = WIDTH - 1;
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if(y < 0)
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y = 0;
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else if(y > HEIGHT)
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y = HEIGHT - 1;
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devmouse->mem[0] = (x >> 8) & 0xff;
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devmouse->mem[1] = x & 0xff;
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devmouse->mem[2] = (y >> 8) & 0xff;
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@ -263,16 +311,32 @@ Uint8
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spritew(Device *d, Memory *m, Uint8 b)
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{
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d->mem[d->ptr++] = b;
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if(d->ptr > 7) {
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if(d->ptr == 6) {
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int i;
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Uint16 x = (d->mem[2] << 8) + d->mem[3];
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Uint16 y = (d->mem[0] << 8) + d->mem[1];
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Uint8 *chr = &m->dat[(d->mem[4] << 8) + d->mem[5]];
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if(!d->mem[6])
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drawchr(pixels, x, y, chr);
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else
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drawicn(pixels, x, y, chr, d->mem[6] & 0xf, (d->mem[6] >> 4) & 0xf);
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if(d->mem[7])
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REQDRAW = 1;
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Uint16 a = (d->mem[4] << 8) + d->mem[5];
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Uint16 key = (x + y * HOR) * 16;
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for(i = 0; i < 16; ++i)
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screen.bg[key + i] = m->dat[a + i];
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REQDRAW = 1;
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d->ptr = 0;
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}
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return 0;
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}
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Uint8 /* TODO: merge this device into screen/sprite */
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fgw(Device *d, Memory *m, Uint8 b)
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{
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d->mem[d->ptr++] = b;
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if(d->ptr == 7) {
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Uint16 x = (d->mem[2] << 8) + d->mem[3];
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Uint16 y = (d->mem[0] << 8) + d->mem[1];
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Uint16 a = (d->mem[4] << 8) + d->mem[5];
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Uint8 clr = d->mem[6] & 0xf;
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Uint8 layer = d->mem[6] >> 4 & 0xf;
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painticn(layer ? screen.fg : screen.bg, x, y, &m->dat[a], clr);
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REQDRAW = 1;
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d->ptr = 0;
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}
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return 0;
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@ -333,6 +397,7 @@ main(int argc, char **argv)
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devcontroller = portuxn(&u, "controller", defaultrw, defaultrw);
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devkey = portuxn(&u, "key", defaultrw, consolew);
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devmouse = portuxn(&u, "mouse", defaultrw, defaultrw);
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devfg = portuxn(&u, "fg", defaultrw, fgw);
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start(&u);
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quit();
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@ -7,16 +7,16 @@
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#01 =dev/w ( set dev/write to screen )
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#02 =dev/w ( set dev/write to sprite )
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#0110 ,cursor_icn #0020 #0038 ,drawsprite JSR
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#0010 ,rounds_chr #0028 #0038 ,drawsprite JSR
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#3210 ,cursor_icn #0020 #0040 ,drawsprite JSR
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#0010 ,rounds_chr #0028 #0040 ,drawsprite JSR
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#0110 ,cursor_icn #20 #38 ,drawsprite JSR
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#0010 ,rounds_chr #28 #38 ,drawsprite JSR
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#3210 ,cursor_icn #20 #40 ,drawsprite JSR
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#0010 ,rounds_chr #28 #40 ,drawsprite JSR
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BRK
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@drawsprite
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IOW2 ( y short )
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IOW2 ( x short )
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IOW ( y byte )
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IOW ( x byte )
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IOW2 ( sprite address )
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IOW2 ( redraw byte )
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RTS
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@ -1,21 +1,50 @@
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( blank )
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( sprite )
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:dev/r fff8 ( std read port )
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:dev/w fff9 ( std write port )
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;x 1 ;y 2
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;mousex 2 ;mousey 2 ;lastx 2 ;lasty 2 ;color 1
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|0100 @RESET
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|0100 @RESET
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#12 #34 WSR2
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,test JSR
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#05 =dev/r ( set dev/read mouse )
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#02 =dev/w ( set dev/write to sprite )
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#00 ,rounds_chr #0004 #0004 ,drawsprite JSR
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BRK
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@test
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|c000 @FRAME
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#06 =dev/w ( set dev/write to sprite )
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( clear last cursor )
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#10 ,clear_icn ~lastx ~lasty ,drawsprite JSR
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( record mouse values )
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#00 IOR2 =mousex #02 IOR2 =mousey
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#04 IOR #11 ADD =color
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~color ,cursor_icn ~mousex ~mousey ,drawsprite JSR
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~mousex =lastx ~mousey =lasty
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BRK
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@drawsprite
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IOW2 ( y byte )
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IOW2 ( x byte )
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IOW2 ( sprite address )
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IOW ( layer-color )
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RTS
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|c000 @FRAME BRK
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|0200 @SPRITESHEET
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@rounds_chr [ 3844 92aa 9244 3800 0038 7c7c 7c38 0000 ]
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@cursor_icn [ 80c0 e0f0 f8e0 1000 ]
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@clear_icn [ 0000 0000 0000 0000 ]
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BRK
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|d000 @ERROR BRK
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|FFFA .RESET .FRAME .ERROR
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