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Move preservation of OpenGL context into glfw

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Allows us to avoid creating an extra hidden window.
This commit is contained in:
Kovid Goyal 2025-09-05 15:17:42 +05:30
parent b241811a74
commit b7c4f42e96
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GPG key ID: 06BC317B515ACE7C
2 changed files with 16 additions and 15 deletions
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19
glfw/nsgl_context.m
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@ -107,12 +107,22 @@ bool _glfwInitNSGL(void)
return true;
}
// We use a globally shared context across all OS Windows so that
// if all OS Windows are closed the context does not have to be recreated
// with all associated data lost. On Apple kitty can remain running with no
// OS Windows.
static NSOpenGLContext* globally_shared_context = nil;
// Terminate OpenGL support
//
void _glfwTerminateNSGL(void)
{
void _glfwTerminateNSGL(void) {
if (globally_shared_context != nil) {
[globally_shared_context release];
globally_shared_context = nil;
}
}
// Create the OpenGL context
//
bool _glfwCreateContextNSGL(_GLFWwindow* window,
@ -272,7 +282,7 @@ bool _glfwCreateContextNSGL(_GLFWwindow* window,
return false;
}
NSOpenGLContext* share = nil;
NSOpenGLContext* share = globally_shared_context;
if (ctxconfig->share)
share = ctxconfig->share->context.nsgl.object;
@ -286,6 +296,9 @@ bool _glfwCreateContextNSGL(_GLFWwindow* window,
"NSGL: Failed to create OpenGL context");
return false;
}
if (globally_shared_context == nil) {
globally_shared_context = [window->context.nsgl.object retain];
}
if (fbconfig->transparent)
{

12
kitty/glfw.c
View file

@ -1092,7 +1092,6 @@ change_state_for_os_window(OSWindow *w, int state) {
}
#ifdef __APPLE__
static GLFWwindow *apple_preserve_common_context = NULL;
static int
filter_option(int key UNUSED, int mods, unsigned int native_key UNUSED, unsigned long flags) {
@ -1410,13 +1409,6 @@ create_os_window(PyObject UNUSED *self, PyObject *args, PyObject *kw) {
// used, so start with window visible unless hidden window requested.
GLFWwindow *common_context = global_state.num_os_windows ? global_state.os_windows[0].handle : NULL;
GLFWwindow *temp_window = NULL;
#ifdef __APPLE__
if (!apple_preserve_common_context) {
glfwWindowHint(GLFW_VISIBLE, false);
apple_preserve_common_context = glfwCreateWindow(1, 1, "kitty", NULL, common_context, NULL);
}
if (!common_context) common_context = apple_preserve_common_context;
#endif
glfwWindowHint(GLFW_VISIBLE, window_state != WINDOW_HIDDEN && global_state.is_wayland);
float xscale, yscale;
double xdpi, ydpi;
@ -2461,10 +2453,6 @@ run_main_loop(tick_callback_fun cb, void* cb_data) {
void
stop_main_loop(void) {
#ifdef __APPLE__
if (apple_preserve_common_context) glfwDestroyWindow(apple_preserve_common_context);
apple_preserve_common_context = NULL;
#endif
glfwStopMainLoop();
}