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refactoring

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This commit is contained in:
Maxim Devaev
2024-03-02 07:23:18 +02:00
parent 6145b69c97
commit ff08a0fb25
4 changed files with 98 additions and 116 deletions
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45
src/v4p/main.c
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@@ -216,40 +216,29 @@ static void _main_loop(void) {
continue;
}
bool has_read;
bool has_error;
const int selected = us_device_select(dev, &has_read, &has_error);
switch (us_device_wait_buffer(dev)) {
case 0: break; // New frame
case -2: // Persistent timeout
if (us_drm_expose(drm, US_DRM_EXPOSE_NO_SIGNAL, NULL, 0) < 0) {
_slowdown();
continue;
}
default: goto close; // Error
}
if (selected < 0) {
if (errno != EINTR) {
US_LOG_PERROR("Mainloop select() error");
us_hw_buffer_s *hw;
const int buf_index = us_device_grab_buffer(dev, &hw);
if (buf_index >= 0) {
const int exposed = us_drm_expose(drm, US_DRM_EXPOSE_FRAME, &hw->raw, dev->run->hz);
if (us_device_release_buffer(dev, hw) < 0) {
goto close;
}
} else if (selected == 0) { // Persistent timeout
if (us_drm_expose(drm, US_DRM_EXPOSE_NO_SIGNAL, NULL, 0) < 0) {
if (exposed < 0) {
_slowdown();
continue;
}
} else {
if (has_read) {
us_hw_buffer_s *hw;
const int buf_index = us_device_grab_buffer(dev, &hw);
if (buf_index >= 0) {
const int exposed = us_drm_expose(drm, US_DRM_EXPOSE_FRAME, &hw->raw, dev->run->hz);
if (us_device_release_buffer(dev, hw) < 0) {
goto close;
}
if (exposed < 0) {
_slowdown();
continue;
}
} else if (buf_index != -2) { // -2 for broken frame
goto close;
}
}
if (has_error && us_device_consume_event(dev) < 0) {
goto close;
}
} else if (buf_index != -2) { // -2 for broken frame
goto close;
}
}