diff --git a/dlls/d3d9/tests/visual.c b/dlls/d3d9/tests/visual.c
index a798d975f91..9ceb758c605 100644
--- a/dlls/d3d9/tests/visual.c
+++ b/dlls/d3d9/tests/visual.c
@@ -3917,24 +3917,24 @@ static void stretchrect_test(void)
         {BACKBUFFER,   &src_rect,         TEX_RT_DST_640_480, &dst_rect_flipy,   D3DTEXF_NONE},
         /* Test filter. */
         {OFFSCREEN_64, NULL,              OFFSCREEN_DST_64,   NULL,              D3DTEXF_NONE,            TRUE},
-        {OFFSCREEN_64, NULL,              OFFSCREEN_DST_64,   NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
+        {OFFSCREEN_64, NULL,              OFFSCREEN_DST_64,   NULL,              D3DTEXF_ANISOTROPIC},
         {OFFSCREEN_32, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_NONE,            TRUE},
-        {OFFSCREEN_32, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
-        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
-        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_PYRAMIDALQUAD,   FALSE, TRUE},
-        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_GAUSSIANQUAD,    FALSE, TRUE},
-        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
-        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_CONVOLUTIONMONO, FALSE, TRUE},
-        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              0xbadf,                  FALSE, TRUE},
+        {OFFSCREEN_32, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC},
+        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC},
+        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_PYRAMIDALQUAD},
+        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_GAUSSIANQUAD},
+        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC},
+        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_CONVOLUTIONMONO},
+        {OFFSCREEN_64, NULL,              TEX_RT_DST_64,      NULL,              0xbadf},
         {TEX_64,       NULL,              RT_DST_64,          NULL,              D3DTEXF_NONE,            TRUE},
-        {TEX_64,       NULL,              RT_DST_64,          NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
-        {RT_64,        NULL,              RT_DST_64,          NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
+        {TEX_64,       NULL,              RT_DST_64,          NULL,              D3DTEXF_ANISOTROPIC},
+        {RT_64,        NULL,              RT_DST_64,          NULL,              D3DTEXF_ANISOTROPIC},
         {TEX_RT_64,    NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_NONE,            TRUE},
-        {TEX_RT_64,    NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
+        {TEX_RT_64,    NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC},
         {RT_64,        NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_NONE,            TRUE},
-        {RT_64,        NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
+        {RT_64,        NULL,              TEX_RT_DST_64,      NULL,              D3DTEXF_ANISOTROPIC},
         {BACKBUFFER,   NULL,              TEX_RT_DST_640_480, NULL,              D3DTEXF_NONE,            TRUE},
-        {BACKBUFFER,   NULL,              TEX_RT_DST_640_480, NULL,              D3DTEXF_ANISOTROPIC,     FALSE, TRUE},
+        {BACKBUFFER,   NULL,              TEX_RT_DST_640_480, NULL,              D3DTEXF_ANISOTROPIC},
     };
 
     window = create_window();
diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index 3745d8dde7f..e965203950e 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -165,20 +165,10 @@ void texture2d_blt_fbo(struct wined3d_device *device, struct wined3d_context *co
             && (abs(src_rect->bottom - src_rect->top) != abs(dst_rect->bottom - dst_rect->top)
             || abs(src_rect->right - src_rect->left) != abs(dst_rect->right - dst_rect->left));
 
-    switch (filter)
-    {
-        case WINED3D_TEXF_LINEAR:
-            gl_filter = scaled_resolve ? GL_SCALED_RESOLVE_NICEST_EXT : GL_LINEAR;
-            break;
-
-        default:
-            FIXME("Unsupported filter mode %s (%#x).\n", debug_d3dtexturefiltertype(filter), filter);
-            /* fall through */
-        case WINED3D_TEXF_NONE:
-        case WINED3D_TEXF_POINT:
-            gl_filter = scaled_resolve ? GL_SCALED_RESOLVE_FASTEST_EXT : GL_NEAREST;
-            break;
-    }
+    if (filter == WINED3D_TEXF_LINEAR)
+        gl_filter = scaled_resolve ? GL_SCALED_RESOLVE_NICEST_EXT : GL_LINEAR;
+    else
+        gl_filter = scaled_resolve ? GL_SCALED_RESOLVE_FASTEST_EXT : GL_NEAREST;
 
     /* Make sure the locations are up-to-date. Loading the destination
      * surface isn't required if the entire surface is overwritten. (And is
diff --git a/dlls/wined3d/texture.c b/dlls/wined3d/texture.c
index b663a44fbb1..85f09ee3489 100644
--- a/dlls/wined3d/texture.c
+++ b/dlls/wined3d/texture.c
@@ -3569,6 +3569,10 @@ HRESULT CDECL wined3d_texture_blt(struct wined3d_texture *dst_texture, unsigned
             || src_texture->resource.type != WINED3D_RTYPE_TEXTURE_2D)
         return WINED3DERR_INVALIDCALL;
 
+    if (filter != WINED3D_TEXF_NONE && filter != WINED3D_TEXF_POINT
+            && filter != WINED3D_TEXF_LINEAR)
+        return WINED3DERR_INVALIDCALL;
+
     dst_format_flags = dst_texture->resource.format_flags;
     if (FAILED(hr = wined3d_texture_check_box_dimensions(dst_texture,
             dst_sub_resource_idx % dst_texture->level_count, &dst_box)))