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Respect repaint_delay when calling render() as well

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This commit is contained in:
Kovid Goyal 2017-09-06 20:57:51 +05:30
parent 21b799905d
commit 6698712b44
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 24 additions and 7 deletions
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31
kitty/child-monitor.c
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@ -13,6 +13,7 @@
#undef _GNU_SOURCE
#include "data-types.h"
#include <unistd.h>
#include <float.h>
#include <fcntl.h>
#include <signal.h>
#include <GLFW/glfw3.h>
@ -321,18 +322,34 @@ mark_for_close(ChildMonitor *self, PyObject *args) {
#undef INCREF_CHILD
#undef DECREF_CHILD
static double last_render_at = -DBL_MAX;
static inline bool
render(ChildMonitor *self, double *timeout) {
PyObject *ret;
double now = monotonic();
double time_since_last_render = now - last_render_at;
if (time_since_last_render > self->repaint_delay) {
ret = PyObject_CallObject(self->render_func, NULL);
if (ret == NULL) return false;
else Py_DECREF(ret);
glfwSwapBuffers(glfw_window_id);
last_render_at = now;
} else {
*timeout = self->repaint_delay - time_since_last_render;
}
return true;
}
static PyObject*
main_loop(ChildMonitor *self) {
#define main_loop_doc "The main thread loop"
PyObject *ret;
double timeout;
double timeout = 0, t;
while (!glfwWindowShouldClose(glfw_window_id)) {
ret = PyObject_CallObject(self->render_func, NULL);
if (ret == NULL) return NULL;
else Py_DECREF(ret);
glfwSwapBuffers(glfw_window_id);
timeout = timers_timeout(self->timers);
if (!render(self, &timeout)) break;
t = timers_timeout(self->timers);
timeout = MIN(timeout, t);
if (timeout < 0) glfwWaitEvents();
else if (timeout > 0) glfwWaitEventsTimeout(timeout);
timers_call(self->timers);