[D3D] Some small fixes

[Lionel Ulmer <lionel.ulmer@free.fr>]

Hi all,

These are the two small fixes / improvements I had on Christian's patch +
one addition change.

Changelog:
 - remove fogging too when doing the flush of the frame buffer
 - handle dest rect in the Blt DEPTH_FILL case
 - fix QueryInterface on the D3D Device

-- 
		 Lionel Ulmer - http://www.bbrox.org/

--- dlls/ddraw_CVS/d3ddevice/main.c	Wed May 21 22:42:08 2003
+++ dlls/ddraw/d3ddevice/main.c	Wed May 21 22:46:58 2003
@@ -241,7 +241,7 @@
 	TRACE("  Return IDirectDrawSurface3 interface %p\n", *obp);
 	return S_OK;
     }
-    if ( IsEqualGUID( &IID_IDirectDrawSurface3, riid ) ||
+    if ( IsEqualGUID( &IID_IDirectDrawSurface4, riid ) ||
          IsEqualGUID( &IID_IDirectDrawSurface7, riid ) ) {
         IDirectDrawSurface7_AddRef(ICOM_INTERFACE(This->surface, IDirectDrawSurface7));
         *obp = ICOM_INTERFACE(This->surface, IDirectDrawSurface7);
--- dlls/ddraw_CVS/d3ddevice/mesa.c	Wed May 21 22:42:58 2003
+++ dlls/ddraw/d3ddevice/mesa.c	Wed May 21 22:39:12 2003
@@ -2835,7 +2835,7 @@
     GLenum buffer_type, buffer_color;
     RECT loc_rect;
     IDirect3DDeviceGLImpl* gl_d3d_dev = (IDirect3DDeviceGLImpl*) d3d_dev;
-    GLint depth_test, alpha_test, cull_face, lighting, min_tex, max_tex, tex_env, blend, stencil_test;
+    GLint depth_test, alpha_test, cull_face, lighting, min_tex, max_tex, tex_env, blend, stencil_test, fog;
     GLuint initial_texture;
     GLint tex_state;
     int x, y;
@@ -2858,6 +2858,7 @@
     glGetIntegerv(GL_BLEND, &blend);
     glGetIntegerv(GL_TEXTURE_BINDING_2D, &initial_texture);
     glGetIntegerv(GL_TEXTURE_2D, &tex_state);
+    glGetIntegerv(GL_FOG, &fog);
     glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, &max_tex);
     glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, &min_tex);
     glGetTexEnviv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &tex_env);
@@ -2912,6 +2913,7 @@
     glDisable(GL_ALPHA_TEST);
     glDisable(GL_STENCIL_TEST);
     glDisable(GL_BLEND);
+    glDisable(GL_FOG);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 
@@ -2949,6 +2951,7 @@
     if (stencil_test != 0) glEnable(GL_STENCIL_TEST);
     if (cull_face != 0) glEnable(GL_CULL_FACE);
     if (blend != 0) glEnable(GL_BLEND);
+    if (fog != 0) glEnable(GL_FOG);
     glBindTexture(GL_TEXTURE_2D, initial_texture);
     if (tex_state == 0) glDisable(GL_TEXTURE_2D);
     glDisable(GL_SCISSOR_TEST);
--- dlls/ddraw_CVS/dsurface/fakezbuffer.c	Wed May 21 22:42:09 2003
+++ dlls/ddraw/dsurface/fakezbuffer.c	Wed May 21 22:49:24 2003
@@ -132,10 +132,17 @@
     }
 
     /* We only support the BLT with DEPTH_FILL for now */
-    if ((dwFlags & DDBLT_DEPTHFILL) && This->ddraw_owner->d3d != NULL) {
+    if ((dwFlags & DDBLT_DEPTHFILL) && (This->ddraw_owner->d3d != NULL)) {
         if (This->ddraw_owner->d3d->current_device != NULL) {
+	    D3DRECT rect;
+	    if (rdst) {
+	        rect.u1.x1 = rdst->left;
+		rect.u2.y1 = rdst->top;
+		rect.u3.x2 = rdst->right;
+		rect.u4.y2 = rdst->bottom;
+	    }
 	    This->ddraw_owner->d3d->current_device->clear(This->ddraw_owner->d3d->current_device,
-							  0, NULL, /* Clear the whole screen */
+							  (rdst == NULL ? 0 : 1), &rect,
 							  D3DCLEAR_ZBUFFER,
 							  0x00000000,
 							  ((double) lpbltfx->u5.dwFillDepth) / 4294967295.0,