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#include <camellia/execbuf.h>
#include <camellia/syscalls.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <user/lib/draw/draw.h>
#define eprintf(fmt, ...) fprintf(stderr, "vterm: "fmt"\n" __VA_OPT__(,) __VA_ARGS__)
struct framebuf fb;
struct rect dirty;
void draw_rect(uint32_t x, uint32_t y, uint32_t w, uint32_t h, uint32_t col) {
for (uint32_t i = 0; i < w; i++) {
for (uint32_t j = 0; j < h; j++) {
*((uint32_t*)(fb.b + fb.pitch * (y+j) + 4 * (x+i))) = col;
}
}
dirty_mark(&dirty, x, y);
dirty_mark(&dirty, x + w, y + h);
}
int main(void) {
if (fb_setup(&fb, "/kdev/video/") < 0) {
eprintf("fb_setup error");
return 1;
}
int dx = 2, dy = 2, x = 100, y = 100, w = 150, h = 70;
uint32_t col = 0x800000;
for (;;) {
if (x + dx < 0 || (size_t)(x + dx + w) >= fb.width) dx *= -1;
if (y + dy < 0 || (size_t)(y + dy + h) >= fb.height) dy *= -1;
x += dx;
y += dy;
draw_rect(x, y, w, h, col++);
dirty_flush(&dirty, &fb);
_syscall_sleep(1000 / 60);
}
return 1;
}
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