d3d8: Refuse to create D3DUSAGE_WRITEONLY textures.

dlls/d3d8/tests/device.c

@@ -5163,6 +5163,11 @@ static void test_lockrect_invalid(void)
             ok(SUCCEEDED(hr), "Failed to unlock texture, hr %#x, type %s.\n", hr, resources[r].name);
 
             IDirect3DTexture8_Release(texture);
+
+            hr = IDirect3DDevice8_CreateTexture(device, 128, 128, 1, D3DUSAGE_WRITEONLY,
+                    D3DFMT_A8R8G8B8, resources[r].pool, &texture);
+            ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x for type %s.\n",
+                    hr, resources[r].name);
         }
 
         if (cube_texture)
@@ -5203,6 +5208,11 @@ static void test_lockrect_invalid(void)
             ok(SUCCEEDED(hr), "Failed to unlock texture, hr %#x, type %s.\n", hr, resources[r].name);
 
             IDirect3DTexture8_Release(cube_texture);
+
+            hr = IDirect3DDevice8_CreateCubeTexture(device, 128, 1, D3DUSAGE_WRITEONLY, D3DFMT_A8R8G8B8,
+                    resources[r].pool, &cube_texture);
+            ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x for type %s.\n",
+                    hr, resources[r].name);
         }
     }
 
@@ -6949,6 +6959,11 @@ static void test_lockbox_invalid(void)
     ok(SUCCEEDED(hr), "Failed to unlock volume texture, hr %#x.\n", hr);
 
     IDirect3DVolumeTexture8_Release(texture);
+
+    hr = IDirect3DDevice8_CreateVolumeTexture(device, 4, 4, 2, 1, D3DUSAGE_WRITEONLY,
+            D3DFMT_A8R8G8B8, D3DPOOL_SCRATCH, &texture);
+    ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x.\n", hr);
+
     refcount = IDirect3DDevice8_Release(device);
     ok(!refcount, "Device has %u references left.\n", refcount);
     IDirect3D8_Release(d3d);

dlls/d3d8/texture.c

@@ -1117,6 +1117,12 @@ HRESULT texture_init(struct d3d8_texture *texture, struct d3d8_device *device,
     desc.depth = 1;
     desc.size = 0;
 
+    if (usage & D3DUSAGE_WRITEONLY)
+    {
+        WARN("Texture can't be created with the D3DUSAGE_WRITEONLY flag, returning D3DERR_INVALIDCALL.\n");
+        return D3DERR_INVALIDCALL;
+    }
+
     if (!levels)
         levels = wined3d_log2i(max(width, height)) + 1;
 
@@ -1162,6 +1168,12 @@ HRESULT cubetexture_init(struct d3d8_texture *texture, struct d3d8_device *devic
     desc.depth = 1;
     desc.size = 0;
 
+    if (usage & D3DUSAGE_WRITEONLY)
+    {
+        WARN("Texture can't be created with the D3DUSAGE_WRITEONLY flag, returning D3DERR_INVALIDCALL.\n");
+        return D3DERR_INVALIDCALL;
+    }
+
     if (!levels)
         levels = wined3d_log2i(edge_length) + 1;
 
@@ -1209,6 +1221,12 @@ HRESULT volumetexture_init(struct d3d8_texture *texture, struct d3d8_device *dev
     desc.depth = depth;
     desc.size = 0;
 
+    if (usage & D3DUSAGE_WRITEONLY)
+    {
+        WARN("Texture can't be created with the D3DUSAGE_WRITEONLY flags, returning D3DERR_INVALIDCALL.\n");
+        return D3DERR_INVALIDCALL;
+    }
+
     if (!levels)
         levels = wined3d_log2i(max(max(width, height), depth)) + 1;