use monotonic clock time for animations
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@ -32,22 +32,79 @@ struct sample_state {
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struct wlr_output_layout *layout;
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struct wlr_output_layout *layout;
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float x_offs, y_offs;
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float x_offs, y_offs;
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float x_vel, y_vel;
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float x_vel, y_vel;
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struct wlr_output *main_output;
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struct timespec ts_last;
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};
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};
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static void animate_cat(struct sample_state *sample,
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struct wlr_output *output) {
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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long ms = (ts.tv_sec - sample->ts_last.tv_sec) * 1000 +
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(ts.tv_nsec - sample->ts_last.tv_nsec) / 1000000;
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// how many seconds have passed since the last time we animated
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float seconds = ms / 1000.0f;
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if (seconds > 0.1f) {
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// XXX when we switch vt, the rendering loop stops so try to detect
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// that and pause when it happens.
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seconds = 0.0f;
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}
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// check for collisions and bounce
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bool ur_collision = !wlr_output_layout_output_at(sample->layout,
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sample->x_offs + 128, sample->y_offs);
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bool ul_collision = !wlr_output_layout_output_at(sample->layout,
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sample->x_offs, sample->y_offs);
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bool ll_collision = !wlr_output_layout_output_at(sample->layout,
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sample->x_offs, sample->y_offs + 128);
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bool lr_collision = !wlr_output_layout_output_at(sample->layout,
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sample->x_offs + 128, sample->y_offs + 128);
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if (ur_collision && ul_collision && ll_collision && lr_collision) {
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// oops we went off the screen somehow
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struct wlr_output_layout_output *l_output =
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wlr_output_layout_get(sample->layout, output);
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sample->x_offs = l_output->x + 20;
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sample->y_offs = l_output->y + 20;
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} else if (ur_collision && ul_collision) {
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sample->y_vel = fabs(sample->y_vel);
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} else if (lr_collision && ll_collision) {
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sample->y_vel = -fabs(sample->y_vel);
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} else if (ll_collision && ul_collision) {
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sample->x_vel = fabs(sample->x_vel);
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} else if (ur_collision && lr_collision) {
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sample->x_vel = -fabs(sample->x_vel);
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} else {
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if (ur_collision || lr_collision) {
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sample->x_vel = -fabs(sample->x_vel);
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}
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if (ul_collision || ll_collision) {
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sample->x_vel = fabs(sample->x_vel);
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}
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if (ul_collision || ur_collision) {
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sample->y_vel = fabs(sample->y_vel);
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}
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if (ll_collision || lr_collision) {
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sample->y_vel = -fabs(sample->y_vel);
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}
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}
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sample->x_offs += sample->x_vel * seconds;
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sample->y_offs += sample->y_vel * seconds;
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sample->ts_last = ts;
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}
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static void handle_output_frame(struct output_state *output,
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static void handle_output_frame(struct output_state *output,
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struct timespec *ts) {
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struct timespec *ts) {
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struct compositor_state *state = output->compositor;
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struct compositor_state *state = output->compositor;
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struct sample_state *sample = state->data;
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struct sample_state *sample = state->data;
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struct wlr_output *wlr_output = output->output;
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struct wlr_output *wlr_output = output->output;
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if (sample->main_output == NULL) {
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sample->main_output = wlr_output;
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}
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wlr_output_make_current(wlr_output);
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wlr_output_make_current(wlr_output);
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wlr_renderer_begin(sample->renderer, wlr_output);
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wlr_renderer_begin(sample->renderer, wlr_output);
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animate_cat(sample, output->output);
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bool intersects = wlr_output_layout_intersects(sample->layout,
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bool intersects = wlr_output_layout_intersects(sample->layout,
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output->output, sample->x_offs, sample->y_offs,
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output->output, sample->x_offs, sample->y_offs,
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sample->x_offs + 128, sample->y_offs + 128);
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sample->x_offs + 128, sample->y_offs + 128);
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@ -65,66 +122,11 @@ static void handle_output_frame(struct output_state *output,
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&wlr_output->transform_matrix, local_x, local_y);
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&wlr_output->transform_matrix, local_x, local_y);
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wlr_render_with_matrix(sample->renderer,
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wlr_render_with_matrix(sample->renderer,
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sample->cat_texture, &matrix);
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sample->cat_texture, &matrix);
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}
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}
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wlr_renderer_end(sample->renderer);
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wlr_renderer_end(sample->renderer);
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wlr_output_swap_buffers(wlr_output);
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wlr_output_swap_buffers(wlr_output);
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if (output->output == sample->main_output) {
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long ms = (ts->tv_sec - output->last_frame.tv_sec) * 1000 +
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(ts->tv_nsec - output->last_frame.tv_nsec) / 1000000;
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// how many seconds have passed since the last frame
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float seconds = ms / 1000.0f;
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if (seconds > 0.1f) {
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// XXX when we switch vt, the rendering loop stops so try to detect
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// that and pause when it happens.
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seconds = 0.0f;
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}
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// check for collisions and bounce
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bool ur_collision = !wlr_output_layout_output_at(sample->layout,
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sample->x_offs + 128, sample->y_offs);
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bool ul_collision = !wlr_output_layout_output_at(sample->layout,
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sample->x_offs, sample->y_offs);
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bool ll_collision = !wlr_output_layout_output_at(sample->layout,
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sample->x_offs, sample->y_offs + 128);
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bool lr_collision = !wlr_output_layout_output_at(sample->layout,
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sample->x_offs + 128, sample->y_offs + 128);
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if (ur_collision && ul_collision && ll_collision && lr_collision) {
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// oops we went off the screen somehow
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struct wlr_output_layout_output *main_l_output;
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main_l_output =
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wlr_output_layout_get(sample->layout, sample->main_output);
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sample->x_offs = main_l_output->x + 20;
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sample->y_offs = main_l_output->y + 20;
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} else if (ur_collision && ul_collision) {
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sample->y_vel = fabs(sample->y_vel);
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} else if (lr_collision && ll_collision) {
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sample->y_vel = -fabs(sample->y_vel);
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} else if (ll_collision && ul_collision) {
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sample->x_vel = fabs(sample->x_vel);
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} else if (ur_collision && lr_collision) {
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sample->x_vel = -fabs(sample->x_vel);
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} else {
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if (ur_collision || lr_collision) {
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sample->x_vel = -fabs(sample->x_vel);
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}
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if (ul_collision || ll_collision) {
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sample->x_vel = fabs(sample->x_vel);
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}
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if (ul_collision || ur_collision) {
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sample->y_vel = fabs(sample->y_vel);
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}
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if (ll_collision || lr_collision) {
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sample->y_vel = -fabs(sample->y_vel);
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}
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}
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sample->x_offs += sample->x_vel * seconds;
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sample->y_offs += sample->y_vel * seconds;
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}
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}
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}
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static void handle_output_add(struct output_state *ostate) {
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static void handle_output_add(struct output_state *ostate) {
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@ -144,11 +146,6 @@ static void handle_output_add(struct output_state *ostate) {
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static void handle_output_remove(struct output_state *ostate) {
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static void handle_output_remove(struct output_state *ostate) {
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struct sample_state *sample = ostate->compositor->data;
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struct sample_state *sample = ostate->compositor->data;
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if (sample->main_output == ostate->output) {
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sample->main_output = NULL;
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}
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wlr_output_layout_remove(sample->layout, ostate->output);
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wlr_output_layout_remove(sample->layout, ostate->output);
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}
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}
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@ -189,6 +186,7 @@ int main(int argc, char *argv[]) {
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state.x_vel = 500;
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state.x_vel = 500;
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state.y_vel = 500;
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state.y_vel = 500;
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state.layout = wlr_output_layout_init();
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state.layout = wlr_output_layout_init();
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clock_gettime(CLOCK_MONOTONIC, &state.ts_last);
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state.config = parse_args(argc, argv);
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state.config = parse_args(argc, argv);
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