Alexei Tereschenko

Why not to use hardware vertex processing instead of software one if
it is available in D3D render driver? With hardware processing
testsprite2 runs three times faster on all videocards which I could
test.

src/video/win32/SDL_d3drender.c

@@ -412,9 +412,16 @@ D3D_CreateRenderer(SDL_Window * window, Uint32 flags)
         pparams.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
     }
 
+    IDirect3D9_GetDeviceCaps(videodata->d3d, D3DADAPTER_DEFAULT,
+                             D3DDEVTYPE_HAL, &caps);
+
     result = IDirect3D9_CreateDevice(videodata->d3d, D3DADAPTER_DEFAULT,        /* FIXME */
                                      D3DDEVTYPE_HAL,
                                      windowdata->hwnd,
+                                     (caps.
+                                      DevCaps &
+                                      D3DDEVCAPS_HWTRANSFORMANDLIGHT) ?
+                                     D3DCREATE_HARDWARE_VERTEXPROCESSING :
                                      D3DCREATE_SOFTWARE_VERTEXPROCESSING,
                                      &pparams, &data->device);
     if (FAILED(result)) {