break out createWindow to new function in renderer

src/renderer.cpp

@@ -28,9 +28,10 @@
 // forward declarations
 void openglDebugCallback(GLenum source, GLenum type, GLuint id, GLenum severity,
 					GLsizei length, const GLchar* message, const void* userParam);
-bool initSDL(SDL_Handles& handles, v2i& viewport_dims);
-bool initContext(SDL_Handles& handles);
-bool initGL();
+bool initSDL(SDL_Handles& handles);
+bool createWindow(SDL_Handles& handles, v2i& viewport_dims);
+bool initGlContext(SDL_Handles& handles);
+bool initGlOptions();
 bool initDebugRenderGroup(render_state* rs);
 void setDefaults(render_state* rs);
 
@@ -43,9 +44,10 @@ renInit()
 	render_state* rs = UTIL_ALLOC(1, render_state);
 	setDefaults(rs);
 
-	if (initSDL(rs->handles, rs->viewport_dims) &&
-		initContext(rs->handles) &&
-		initGL() &&
+	if (initSDL(rs->handles) &&
+		createWindow(rs->handles, rs->viewport_dims) &&
+		initGlContext(rs->handles) &&
+		initGlOptions() &&
 		rgInitShaderProgram(rs->default_shader, DEFAULT_VERTEX_SHADER, DEFAULT_FRAGMENT_SHADER) &&
 		initDebugRenderGroup(rs) )
 	{
@@ -121,8 +123,13 @@ openglDebugCallback(GLenum source, GLenum type, GLuint id, GLenum severity,
 }
 
 bool
-initSDL(SDL_Handles& handles, v2i& viewport_dims)
+initSDL(SDL_Handles& handles)
 {
+	if (SDL_Init(SDL_INIT_VIDEO) != 0) {
+		LOG(Error) << "Error, SDL_Init: " << SDL_GetError() << "\n";
+		return false;
+	}
+
 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
@@ -132,6 +139,12 @@ initSDL(SDL_Handles& handles, v2i& viewport_dims)
 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
 	SDL_GetCurrentDisplayMode(0, &handles.currentDisplayMode);
 
+	return true;
+}
+
+bool
+createWindow(SDL_Handles& handles, v2i& viewport_dims)
+{
 	uint display_id = 0;
 	if (USE_SECOND_MONITOR && SDL_GetNumVideoDisplays() > 1)
 		display_id = 1;
@@ -154,7 +167,7 @@ initSDL(SDL_Handles& handles, v2i& viewport_dims)
 }
 
 bool
-initContext(SDL_Handles& handles)
+initGLContext(SDL_Handles& handles)
 {
 	handles.glContext = SDL_GL_CreateContext(handles.window);
 
@@ -172,7 +185,7 @@ initContext(SDL_Handles& handles)
 }
 
 bool
-initGL()
+initGlOptions()
 {
 	if (glewInit()) {
 		LOG(Error) << "failed to initialize OpenGL\n";