From c6d09be0a56c7b96be48f074901a53d7f76c25cc Mon Sep 17 00:00:00 2001 From: dec05eba Date: Tue, 17 Jan 2023 17:26:46 +0100 Subject: Add option to set window background color This window background color is different than window.clear(color) because this window color is the background color if the window itself, which means if there is a delay between creating the window and the first frame display then the window background color is black, but if window color is set then that color will be displayed instead. Normally you want to set the window background color to the same color as the color you use in window.clear(color). --- src/window/window.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'src/window') diff --git a/src/window/window.c b/src/window/window.c index 958adab..101fb42 100644 --- a/src/window/window.c +++ b/src/window/window.c @@ -282,6 +282,12 @@ static void mgl_window_on_resize(mgl_window *self, int width, int height) { mgl_window_set_scissor(self, &(mgl_scissor){ .position = { 0, 0 }, .size = self->size }); } +static unsigned long mgl_color_to_x11_pixel(mgl_color color) { + if(color.a == 0) + return 0; + return (color.r << 16) | (color.g << 8) | color.b; +} + static int mgl_window_init(mgl_window *self, const char *title, const mgl_window_create_params *params, Window existing_window) { self->window = 0; self->context = NULL; @@ -336,7 +342,7 @@ static int mgl_window_init(mgl_window *self, const char *title, const mgl_window XSetWindowAttributes window_attr; window_attr.override_redirect = params ? params->override_redirect : false; window_attr.colormap = x11_context->color_map; - window_attr.background_pixel = 0; + window_attr.background_pixel = mgl_color_to_x11_pixel(params ? params->background_color : (mgl_color){ .r = 0, .g = 0, .b = 0, .a = 0 }); window_attr.border_pixel = 0; window_attr.bit_gravity = NorthWestGravity; window_attr.event_mask = -- cgit v1.2.3