/* Direct3D 8
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include "config.h"

#include <stdarg.h>

#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "wingdi.h"
#include "winuser.h"
#include "wine/debug.h"

#include "d3d8.h"
#include "d3d8_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(d3d);

int num_lock = 0;
void (*wine_tsx11_lock_ptr)(void) = NULL;
void (*wine_tsx11_unlock_ptr)(void) = NULL;
int vs_mode = VS_HW;   /* Hardware by default */
int ps_mode = PS_NONE; /* Disabled by default */

HRESULT WINAPI D3D8GetSWInfo(void)
{
    FIXME("(void): stub\n");
    return 0;
}

void WINAPI DebugSetMute(void)
{
    /* nothing to do */
}

IDirect3D8* WINAPI Direct3DCreate8(UINT SDKVersion)
{
    IDirect3D8Impl *object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirect3D8Impl));

    object->lpVtbl = &Direct3D8_Vtbl;
    object->direct3d8 = object;
    object->ref = 1;
    object->WineD3D = WineDirect3DCreate(SDKVersion, 8, (IUnknown *)object);

    TRACE("SDKVersion = %x, Created Direct3D object @ %p, WineObj @ %p\n", SDKVersion, object, object->WineD3D);

    return (IDirect3D8 *)object;
}

/* At process attach */
BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
{
    TRACE("D3D8 DLLMain Reason=%ld\n", fdwReason);
    if (fdwReason == DLL_PROCESS_ATTACH)
    {
       HMODULE mod;
       char buffer[32];
       DWORD size = sizeof(buffer);
       HKEY hkey = 0;

       DisableThreadLibraryCalls(hInstDLL);

       mod = GetModuleHandleA( "winex11.drv" );
       if (mod)
       {
           wine_tsx11_lock_ptr   = (void *)GetProcAddress( mod, "wine_tsx11_lock" );
           wine_tsx11_unlock_ptr = (void *)GetProcAddress( mod, "wine_tsx11_unlock" );
       }
       /* @@ Wine registry key: HKLM\Software\Wine\Direct3D */
       if ( !RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Direct3D", &hkey) )
       {
           if ( !RegQueryValueExA( hkey, "VertexShaderMode", 0, NULL, buffer, &size) )
           {
               if (!strcmp(buffer,"none"))
               {
                   TRACE("Disable vertex shaders\n");
                   vs_mode = VS_NONE;
	       }
	       else if (!strcmp(buffer,"emulation"))
               {
                   TRACE("Force SW vertex shaders\n");
                   vs_mode = VS_SW;
               }
           }
           if ( !RegQueryValueExA( hkey, "PixelShaderMode", 0, NULL, buffer, &size) )
           {
               if (!strcmp(buffer,"enabled"))
               {
                   TRACE("Allow pixel shaders\n");
                   ps_mode = PS_HW;
	       }
           }
       }
       if (vs_mode == VS_HW)
           TRACE("Allow HW vertex shaders\n");
       if (ps_mode == PS_NONE)
           TRACE("Disable pixel shaders\n");
    }
    return TRUE;
}