# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1575574843 -7200
# Node ID d93b1c2690f8ea3db37a7cd2b311ad110606f385
# Parent  a7d56f0060639e1b0f56f480421e190df130aee1
Set SDL_GL_* attributes after initializing SDL, but before creating window or OpenGL context.

diff -r a7d56f006063 -r d93b1c2690f8 gldragon.cpp
--- a/gldragon.cpp	Thu Dec 05 21:07:35 2019 +0200
+++ b/gldragon.cpp	Thu Dec 05 21:40:43 2019 +0200
@@ -108,14 +108,6 @@
     int ret;
     std::string msg;
 
-    // Set GL attributes
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
-
-    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
-    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
-
     // Attempt to initialize libSDL
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_EVENTS) != 0)
     {
@@ -124,6 +116,20 @@
         return false;
     }
 
+    // Set GL attributes
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+
+    SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
+    SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
+    SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
+    SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
+
+    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
+    //SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
+    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
     // Attempt to create a window
     if ((dmWindow = SDL_CreateWindow(title,
             SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,