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#define _POSIX_C_SOURCE 199309L
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <inttypes.h>
#include <wayland-server.h>
#include <GLES3/gl3.h>
#include <wlr/backend.h>
#include <wlr/session.h>
#include <wlr/types.h>
#include <xkbcommon/xkbcommon.h>
#include "shared.h"
struct sample_state {
float color[3];
int dec;
};
void handle_output_frame(struct output_state *output, struct timespec *ts) {
struct compositor_state *state = output->compositor;
struct sample_state *sample = state->data;
long ms = (ts->tv_sec - state->last_frame.tv_sec) * 1000 +
(ts->tv_nsec - state->last_frame.tv_nsec) / 1000000;
int inc = (sample->dec + 1) % 3;
sample->color[inc] += ms / 2000.0f;
sample->color[sample->dec] -= ms / 2000.0f;
if (sample->color[sample->dec] < 0.0f) {
sample->color[inc] = 1.0f;
sample->color[sample->dec] = 0.0f;
sample->dec = inc;
}
glClearColor(sample->color[0], sample->color[1], sample->color[2], 1.0);
glClear(GL_COLOR_BUFFER_BIT);
}
static void handle_keyboard_key(struct keyboard_state *kbstate,
xkb_keysym_t sym, enum wlr_key_state key_state) {
if (sym == XKB_KEY_Escape) {
kbstate->compositor->exit = true;
}
}
int main() {
struct sample_state state = {
.color = { 1.0, 0.0, 0.0 },
.dec = 0,
};
struct compositor_state compositor;
compositor_init(&compositor);
compositor.output_frame_cb = handle_output_frame;
compositor.keyboard_key_cb = handle_keyboard_key;
compositor.data = &state;
compositor_run(&compositor);
}
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