Fix: [SDL2] set GL attributes to get the best GL context possible (#8759)

1 files changed, 11 insertions, 0 deletions

diff --git a/src/video/sdl2_opengl_v.cpp b/src/video/sdl2_opengl_v.cpp
index 9c9a9c6fa..87a8bb9b3 100644
--- a/src/video/sdl2_opengl_v.cpp
+++ b/src/video/sdl2_opengl_v.cpp
@@ -94,6 +94,17 @@ void VideoDriver_SDL_OpenGL::DestroyContext()
 
 const char *VideoDriver_SDL_OpenGL::AllocateContext()
 {
+	SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 0);
+	SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+
+	if (_debug_driver_level >= 8) {
+		SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG);
+	}
+
 	this->gl_context = SDL_GL_CreateContext(this->sdl_window);
 	if (this->gl_context == nullptr) return "SDL2: Can't active GL context";