Added the hint SDL_HINT_RENDER_LINE_METHOD to select the line rendering method

src/render/SDL_sysrender.h

@@ -114,6 +114,14 @@ typedef struct SDL_VertexSolid
 } SDL_VertexSolid;
 
 
+typedef enum
+{
+    SDL_RENDERLINEMETHOD_POINTS,
+    SDL_RENDERLINEMETHOD_LINES,
+    SDL_RENDERLINEMETHOD_GEOMETRY,
+} SDL_RenderLineMethod;
+
+
 /* Define the SDL renderer structure */
 struct SDL_Renderer
 {
@@ -214,6 +222,9 @@ struct SDL_Renderer
     /* Whether or not to scale relative mouse motion */
     SDL_bool relative_scaling;
 
+    /* The method of drawing lines */
+    SDL_RenderLineMethod line_method;
+
     /* Remainder from scaled relative motion */
     float xrel;
     float yrel;