101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
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#include <stdio.h>
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#include <stdint.h>
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#include <syscall.h>
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#include <string.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include "lib/graphics.c"
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#define BUFW 800
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#define BUFH 800
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#define BUFD 4
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#define SIZE BUFW * BUFH * BUFD
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#define WIDTH "800"
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#define HEIGHT "800"
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#define DEPTH "32"
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#if 0
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uint16_t graphics_width = 0;
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uint16_t graphics_height = 0;
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uint16_t graphics_depth = 0;
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#define GFX_W graphics_width
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#define GFX_H graphics_height
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#define GFX_D graphics_depth
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#define GFX_B (graphics_depth / 8) /* Display byte depth */
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#define GFX(x,y) *((uint32_t *)&frame_mem[(GFX_W * (y) + (x)) * GFX_B])
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#endif
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#define BUF(buf,x,y) *((uint32_t *)&buf[(BUFW * (y) + (x)) * BUFD])
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/*
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DEFN_SYSCALL0(getgraphicsaddress, 11);
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DEFN_SYSCALL1(setgraphicsoffset, 16, int);
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DEFN_SYSCALL0(getgraphicswidth, 18);
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DEFN_SYSCALL0(getgraphicsheight, 19);
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DEFN_SYSCALL0(getgraphicsdepth, 20);
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*/
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DEFN_SYSCALL2(shm_obtain, 35, char *, int)
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DEFN_SYSCALL1(shm_release, 36, char *)
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void composite (char * buf, uint16_t x_off, uint16_t y_off) {
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for (int y = 0; y < BUFH; y++) {
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int ytrue = y + y_off;
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if (ytrue > GFX_H) {
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break;
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}
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for (int x = 0; x < BUFW; x++) {
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int xtrue = x + x_off;
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if (xtrue > GFX_W) {
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break;
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}
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GFX(xtrue,ytrue) = BUF(buf,x,y);
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}
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}
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}
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int main (int argc, char ** argv) {
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/* graphics_width = syscall_getgraphicswidth();
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graphics_height = syscall_getgraphicsheight();
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graphics_depth = syscall_getgraphicsdepth();
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int map_x = GFX_W / 2 - (64 * 9) / 2;
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int map_y = GFX_H / 2 - (64 * 9) / 2;
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int flip_offset = GFX_H;
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gfx_mem = (void *)syscall_getgraphicsaddress();
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frame_mem = (void *)((uintptr_t)gfx_mem + sizeof(uint32_t) * GFX_W * GFX_H);*/
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init_graphics_double_buffer();
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char * julia_window_key = "julia2.windowbuffer";
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char * game_window_key = "game2.windowbuffer";
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char * julia_window = (char *)syscall_shm_obtain(julia_window_key, SIZE);
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char * game_window = (char *)syscall_shm_obtain(game_window_key, SIZE);
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memset(julia_window, 0, SIZE);
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memset(game_window, 0, SIZE);
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/* Fork off two children */
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if (!fork()) {
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char * args[] = {"/bin/julia2", WIDTH, HEIGHT, DEPTH, julia_window_key, NULL};
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execve(args[0], args, NULL);
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}
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if (!fork()) {
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char * args[] = {"/bin/game2", WIDTH, HEIGHT, DEPTH, game_window_key, NULL};
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execve(args[0], args, NULL);
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}
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/* write loop */
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while (1) {
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composite(julia_window, 0, 0);
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composite(game_window, 100, 100);
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flip();
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}
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return 0;
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}
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