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-rw-r--r--src/main.cpp72
1 files changed, 53 insertions, 19 deletions
diff --git a/src/main.cpp b/src/main.cpp
index 0f0fded..5d7ae6c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -37,6 +37,7 @@
#include <GLFW/glfw3.h>
#include <X11/extensions/Xcomposite.h>
+#include <X11/extensions/Xdamage.h>
extern "C" {
#include <libavcodec/avcodec.h>
@@ -839,6 +840,16 @@ int main(int argc, char **argv) {
XSelectInput(dpy, src_window_id, StructureNotifyMask);
+ int damage_event;
+ int damage_error;
+ if (!XDamageQueryExtension(dpy, &damage_event, &damage_error)) {
+ fprintf(stderr, "Error: XDamage is not supported by your X11 server\n");
+ return 1;
+ }
+
+ Damage damage = XDamageCreate(dpy, src_window_id, XDamageReportNonEmpty);
+ XDamageSubtract(dpy, damage,None,None);
+
int frame_count = 0;
CUresult res;
@@ -975,25 +986,56 @@ int main(int argc, char **argv) {
}, av_format_context, audio_stream, audio_frame_buf, &sound_device, audio_frame, &write_output_mutex);
}
+ int x11_fd = ConnectionNumber(dpy);
+ fd_set in_fds;
+ struct timeval tv;
+
bool redraw = true;
XEvent e;
while (running) {
- double frame_start = glfwGetTime();
+ glfwPollEvents();
+
+ FD_ZERO(&in_fds);
+ FD_SET(x11_fd, &in_fds);
+
+ /* Wake up thread every frame even if no events are received */
+ tv.tv_usec = 1000 * (1000.0 / (double)fps);
+ tv.tv_sec = 0;
+
+ int num_ready_fds = select(x11_fd + 1, &in_fds, NULL, NULL, &tv);
+ if (num_ready_fds < 0) {
+ //fprintf(stderr, "Window manager error: select failed on display file descriptor!\n");
+ continue;
+ }
/*glClear(GL_COLOR_BUFFER_BIT);*/
- glfwPollEvents();
- if (XCheckTypedWindowEvent(dpy, src_window_id, ConfigureNotify, &e) && e.xconfigure.window == src_window_id) {
- // Window resize
- if(e.xconfigure.width != window_width || e.xconfigure.height != window_height) {
- window_width = e.xconfigure.width;
- window_height = e.xconfigure.height;
- window_resize_timer = glfwGetTime();
- window_resized = true;
+ while(num_ready_fds > 0 && XPending(dpy)) {
+ XNextEvent(dpy, &e);
+
+ if (e.type == ConfigureNotify && e.xconfigure.window == src_window_id) {
+ // Window resize
+ if(e.xconfigure.width != window_width || e.xconfigure.height != window_height) {
+ window_width = e.xconfigure.width;
+ window_height = e.xconfigure.height;
+ window_resize_timer = glfwGetTime();
+ window_resized = true;
+ }
}
- }
- redraw = true;
+ if (e.type == damage_event + XDamageNotify) {
+ // fprintf(stderr, "Redraw!\n");
+ XDamageNotifyEvent *de = (XDamageNotifyEvent *)&e;
+ // de->drawable is the window ID of the damaged window
+ XserverRegion region = XFixesCreateRegion(dpy, nullptr, 0);
+ // Subtract all the damage, repairing the window
+ XDamageSubtract(dpy, de->damage, None, region);
+ XFixesDestroyRegion(dpy, region);
+
+ ++fps_counter;
+ redraw = true;
+ }
+ }
const double window_resize_timeout = 1.0; // 1 second
if(window_resized && glfwGetTime() - window_resize_timer >= window_resize_timeout) {
@@ -1030,8 +1072,6 @@ int main(int argc, char **argv) {
}
}
- ++fps_counter;
-
double time_now = glfwGetTime();
double frame_timer_elapsed = time_now - frame_timer_start;
double elapsed = time_now - start_time;
@@ -1087,12 +1127,6 @@ int main(int argc, char **argv) {
}
// av_frame_free(&frame);
-
- double frame_end = glfwGetTime();
- double frame_sleep_fps = 1.0 / 250.0;
- double sleep_time = frame_sleep_fps - (frame_end - frame_start);
- if(sleep_time > 0.0)
- usleep(sleep_time * 1000.0 * 1000.0);
}
running = 0;