Enable alpha blending

1 files changed, 5 insertions, 0 deletions

diff --git a/src/window.c b/src/window.c
index bdbcd6f..4d877d7 100644
--- a/src/window.c
+++ b/src/window.c
@@ -4,6 +4,9 @@
 #include <stdio.h>
 
 #define GL_COLOR_BUFFER_BIT 0x00004000
+#define GL_BLEND 0x0BE2
+#define GL_SRC_ALPHA 0x0302
+#define GL_ONE_MINUS_SRC_ALPHA 0x0303
 
 int mgl_window_create(mgl_window *self, const char *title, int width, int height, mgl_window_callback *callback, void *userdata) {
     return mgl_window_create_with_params(self, title, width, height, DefaultRootWindow(mgl_get_context()->connection), callback, userdata);
@@ -80,6 +83,8 @@ void mgl_window_show(mgl_window *self) {
     /* TODO: Switch current when rendering to another window, and set current to NULL when destroying the currently selected context */
     context->gl.glXMakeCurrent(context->connection, self->window, context->glx_context);
     set_vertical_sync_enabled(self->window, 1);
+    context->gl.glEnable(GL_BLEND);
+    context->gl.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     mgl_window_draw(self);
 }