Added interfaces for batch drawing of points, lines and rects:

SDL_DrawPoints()
    SDL_BlendPoints()
    SDL_BlendLines()
    SDL_DrawLines()
    SDL_FillRects()
    SDL_BlendRects()
    SDL_RenderPoints()
    SDL_RenderLines()
    SDL_RenderRects()
Renamed SDL_RenderFill() to SDL_RenderRect()

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404279

include/SDL_rect.h

@@ -42,6 +42,17 @@ extern "C" {
 /* *INDENT-ON* */
 #endif
 
+/**
+ *  \brief  The structure that defines a point
+ *
+ *  \sa SDL_EnclosePoints
+ */
+typedef struct
+{
+    int x;
+    int y;
+} SDL_Point;
+
 /**
  *  \brief A rectangle, with the origin at the upper left.
  *  
@@ -50,6 +61,7 @@ extern "C" {
  *  \sa SDL_HasIntersection
  *  \sa SDL_IntersectRect
  *  \sa SDL_UnionRect
+ *  \sa SDL_EnclosePoints
  */
 typedef struct SDL_Rect
 {
@@ -92,6 +104,16 @@ extern DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect * A,
                                            const SDL_Rect * B,
                                            SDL_Rect * result);
 
+/**
+ *  \brief Calculate a minimal rectangle enclosing a set of points
+ *
+ *  \return SDL_TRUE if any points were within the clipping rect
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_EnclosePoints(const SDL_Point * points,
+                                                   int count,
+                                                   const SDL_Rect * clip,
+                                                   SDL_Rect * result);
+
 /**
  *  \brief Calculate the intersection of a rectangle and line segment.
  *