Slightly improve performance by only swapping buffer on redraw
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@ -18,7 +18,7 @@ libavformat = ">=58"
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libavutil = ">=56.2"
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x11 = ">=1"
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xcomposite = ">=0.2"
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xdamage = "1"
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#xdamage = "1"
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# TODO: Remove this dependency, this is needed right now for glfwMakeContextCurrent
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glfw3 = "3"
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27
src/main.cpp
27
src/main.cpp
@ -37,7 +37,6 @@
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#include <GLFW/glfw3.h>
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#include <X11/extensions/Xcomposite.h>
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#include <X11/extensions/Xdamage.h>
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extern "C" {
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#include <libavcodec/avcodec.h>
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@ -699,7 +698,7 @@ int main(int argc, char **argv) {
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
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GLFWwindow *window = glfwCreateWindow(32, 32, "gpu-screen-recorder", nullptr, nullptr);
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GLFWwindow *window = glfwCreateWindow(1, 1, "gpu-screen-recorder", nullptr, nullptr);
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if (!window) {
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fprintf(stderr, "Error: Failed to create glfw window\n");
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glfwTerminate();
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@ -810,15 +809,6 @@ int main(int argc, char **argv) {
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XSelectInput(dpy, src_window_id, StructureNotifyMask);
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int damage_event;
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int damage_error;
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if (!XDamageQueryExtension(dpy, &damage_event, &damage_error)) {
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fprintf(stderr, "Error: XDamage is not supported by your X11 server\n");
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return 1;
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}
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Damage xdamage = XDamageCreate(dpy, src_window_id, XDamageReportNonEmpty);
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int frame_count = 0;
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CUresult res;
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@ -960,8 +950,7 @@ int main(int argc, char **argv) {
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while (running) {
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double frame_start = glfwGetTime();
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glClear(GL_COLOR_BUFFER_BIT);
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glfwSwapBuffers(window);
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/*glClear(GL_COLOR_BUFFER_BIT);*/
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glfwPollEvents();
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if (XCheckTypedWindowEvent(dpy, src_window_id, ConfigureNotify, &e) && e.xconfigure.window == src_window_id) {
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@ -974,17 +963,7 @@ int main(int argc, char **argv) {
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}
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}
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if (XCheckTypedWindowEvent(dpy, src_window_id, damage_event + XDamageNotify, &e)) {
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// fprintf(stderr, "Redraw!\n");
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XDamageNotifyEvent *de = (XDamageNotifyEvent *)&e;
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// de->drawable is the window ID of the damaged window
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XserverRegion region = XFixesCreateRegion(dpy, nullptr, 0);
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// Subtract all the damage, repairing the window
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XDamageSubtract(dpy, de->damage, None, region);
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XFixesDestroyRegion(dpy, region);
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redraw = true;
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}
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const double window_resize_timeout = 1.0; // 1 second
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if(window_resized && glfwGetTime() - window_resize_timer >= window_resize_timeout) {
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@ -1064,6 +1043,7 @@ int main(int argc, char **argv) {
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memcpy_struct.Height = frame->height;
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cuMemcpy2D(&memcpy_struct);
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// res = cuCtxPopCurrent(&old_ctx);
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glfwSwapBuffers(window);
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}
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frame->pts = frame_count;
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@ -1153,7 +1133,6 @@ int main(int argc, char **argv) {
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if(!(output_format->flags & AVFMT_NOFILE))
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avio_close(av_format_context->pb);
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// avformat_free_context(av_format_context);
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// XDamageDestroy(dpy, xdamage);
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// cleanup_window_pixmap(dpy, window_pixmap);
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XCompositeUnredirectWindow(dpy, src_window_id, CompositeRedirectAutomatic);
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