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renderer/opengl: support reloading the Opengl state

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This commit is contained in:
Mitchell Hashimoto
2023-09-16 09:37:29 -07:00
parent 58100f0a00
commit a19acf14d2
1 changed files with 34 additions and 0 deletions
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34
src/renderer/OpenGL.zig
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@ -420,6 +420,40 @@ pub fn finalizeSurfaceInit(self: *const OpenGL, surface: *apprt.Surface) !void {
}
}
/// Called when the OpenGL context is made invalid, so we need to free
/// all previous resources and stop rendering.
pub fn displayUnrealized(self: *OpenGL) void {
if (single_threaded_draw) self.draw_mutex.lock();
defer if (single_threaded_draw) self.draw_mutex.unlock();
if (self.gl_state) |*v| {
v.deinit();
self.gl_state = null;
}
}
/// Called when the OpenGL is ready to be initialized.
pub fn displayRealize(self: *OpenGL) !void {
if (single_threaded_draw) self.draw_mutex.lock();
defer if (single_threaded_draw) self.draw_mutex.unlock();
// Make our new state
var gl_state = try GLState.init(self.font_group);
errdefer gl_state.deinit();
// Unrealize if we have to
if (self.gl_state) |*v| v.deinit();
// Set our new state
self.gl_state = gl_state;
// Make sure we invalidate all the fields so that we reflush everything
self.gl_cells_size = 0;
self.gl_cells_written = 0;
self.font_group.atlas_greyscale.modified = true;
self.font_group.atlas_color.modified = true;
}
/// Callback called by renderer.Thread when it begins.
pub fn threadEnter(self: *const OpenGL, surface: *apprt.Surface) !void {
_ = self;