65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#define _POSIX_C_SOURCE 199309L
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#include <GLES2/gl2.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <wayland-server.h>
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#include <wlr/backend.h>
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#include <wlr/backend/session.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/util/log.h>
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#include <xkbcommon/xkbcommon.h>
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#include "support/shared.h"
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struct sample_state {
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float color[3];
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int dec;
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};
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void handle_output_frame(struct output_state *output, struct timespec *ts) {
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struct compositor_state *state = output->compositor;
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struct sample_state *sample = state->data;
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long ms = (ts->tv_sec - state->last_frame.tv_sec) * 1000 +
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(ts->tv_nsec - state->last_frame.tv_nsec) / 1000000;
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int inc = (sample->dec + 1) % 3;
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sample->color[inc] += ms / 2000.0f;
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sample->color[sample->dec] -= ms / 2000.0f;
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if (sample->color[sample->dec] < 0.0f) {
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sample->color[inc] = 1.0f;
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sample->color[sample->dec] = 0.0f;
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sample->dec = inc;
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}
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wlr_output_make_current(output->output, NULL);
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glClearColor(sample->color[0], sample->color[1], sample->color[2], 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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wlr_output_swap_buffers(output->output, NULL, NULL);
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}
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int main() {
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wlr_log_init(L_DEBUG, NULL);
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struct sample_state state = {
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.color = { 1.0, 0.0, 0.0 },
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.dec = 0,
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};
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struct compositor_state compositor = { 0,
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.data = &state,
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.output_frame_cb = handle_output_frame,
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};
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compositor_init(&compositor);
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if (!wlr_backend_start(compositor.backend)) {
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wlr_log(L_ERROR, "Failed to start backend");
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wlr_backend_destroy(compositor.backend);
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exit(1);
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}
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wl_display_run(compositor.display);
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compositor_fini(&compositor);
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}
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