PapaTutuWawa/gpu-screen-recorder
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Slightly improve performance by only swapping buffer on redraw

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This commit is contained in:
dec05eba 2020-08-30 04:06:49 +02:00
parent e215d62dfd
commit d69aded7fa
2 changed files with 5 additions and 26 deletions
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2
project.conf
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@ -18,7 +18,7 @@ libavformat = ">=58"
libavutil = ">=56.2"
x11 = ">=1"
xcomposite = ">=0.2"
xdamage = "1"
#xdamage = "1"
# TODO: Remove this dependency, this is needed right now for glfwMakeContextCurrent
glfw3 = "3"

29
src/main.cpp
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@ -37,7 +37,6 @@
#include <GLFW/glfw3.h>
#include <X11/extensions/Xcomposite.h>
#include <X11/extensions/Xdamage.h>
extern "C" {
#include <libavcodec/avcodec.h>
@ -699,7 +698,7 @@ int main(int argc, char **argv) {
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
GLFWwindow *window = glfwCreateWindow(32, 32, "gpu-screen-recorder", nullptr, nullptr);
GLFWwindow *window = glfwCreateWindow(1, 1, "gpu-screen-recorder", nullptr, nullptr);
if (!window) {
fprintf(stderr, "Error: Failed to create glfw window\n");
glfwTerminate();
@ -810,15 +809,6 @@ 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 xdamage = XDamageCreate(dpy, src_window_id, XDamageReportNonEmpty);
int frame_count = 0;
CUresult res;
@ -960,8 +950,7 @@ int main(int argc, char **argv) {
while (running) {
double frame_start = glfwGetTime();
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers(window);
/*glClear(GL_COLOR_BUFFER_BIT);*/
glfwPollEvents();
if (XCheckTypedWindowEvent(dpy, src_window_id, ConfigureNotify, &e) && e.xconfigure.window == src_window_id) {
@ -974,17 +963,7 @@ int main(int argc, char **argv) {
}
}
if (XCheckTypedWindowEvent(dpy, src_window_id, damage_event + XDamageNotify, &e)) {
// 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);
redraw = true;
}
redraw = true;
const double window_resize_timeout = 1.0; // 1 second
if(window_resized && glfwGetTime() - window_resize_timer >= window_resize_timeout) {
@ -1064,6 +1043,7 @@ int main(int argc, char **argv) {
memcpy_struct.Height = frame->height;
cuMemcpy2D(&memcpy_struct);
// res = cuCtxPopCurrent(&old_ctx);
glfwSwapBuffers(window);
}
frame->pts = frame_count;
@ -1153,7 +1133,6 @@ int main(int argc, char **argv) {
if(!(output_format->flags & AVFMT_NOFILE))
avio_close(av_format_context->pb);
// avformat_free_context(av_format_context);
// XDamageDestroy(dpy, xdamage);
// cleanup_window_pixmap(dpy, window_pixmap);
XCompositeUnredirectWindow(dpy, src_window_id, CompositeRedirectAutomatic);