src/game_sp/DirectDrawGlobals.c

   1 // ----------------------------------------------------------------------------
   2 // DirectDrawGlobals.c
   3 // ----------------------------------------------------------------------------
   4
   5 #include "DirectDrawGlobals.h"
   6
   7 static char *VB_Name = "DirectDrawGlobals";
   8 // --- Option Explicit
   9
  10 DirectX7 DirectX;
  11 DirectDraw7 DirectDraw;
  12 DirectDrawSurface7 PrimarySurface;
  13
  14 void InitDirectDraw(long hWndClip)
  15 {
  16   DDSURFACEDESC2 SD;
  17
  18   // DirectX = New DirectX7; // (handle this later, if needed)
  19   DirectDraw = DirectX.DirectDrawCreate("");
  20   DirectDraw.SetCooperativeLevel(0, DDSCL_NORMAL);
  21   // Create PrimarySurface:
  22   {
  23     SD.lFlags = DDSD_CAPS;
  24     SD.ddsCaps.lCaps = DDSCAPS_PRIMARYSURFACE;
  25   }
  26   PrimarySurface = DirectDraw.CreateSurface(SD);
  27   if (hWndClip != 0)
  28     ClipToWindow(hWndClip);
  29 }
  30
  31 void ReleaseDirectDraw()
  32 {
  33   SET_TO_NOTHING(&PrimarySurface, sizeof(PrimarySurface));
  34   SET_TO_NOTHING(&DirectDraw, sizeof(DirectDraw));
  35   SET_TO_NOTHING(&DirectX, sizeof(DirectX));
  36 }
  37
  38 void ClipToWindow(long hWnd)
  39 {
  40   DirectDrawClipper Clipper;
  41
  42   // create clipper
  43   Clipper = DirectDraw.CreateClipper(0);
  44   Clipper.SetHWnd(hWnd);
  45   PrimarySurface.SetClipper(Clipper);
  46   SET_TO_NOTHING(&Clipper, sizeof(Clipper));
  47 }