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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Helper functions that Direct3D 9Ex code a little easier to work with for | |
6 // the ui/surface code. | |
7 | |
8 #ifndef UI_SURFACE_D3D9_UTILS_WIN_H_ | |
9 #define UI_SURFACE_D3D9_UTILS_WIN_H_ | |
10 | |
11 #include <d3d9.h> | |
12 | |
13 #include "base/basictypes.h" | |
14 #include "ui/surface/surface_export.h" | |
15 | |
16 namespace base { | |
17 class ScopedNativeLibrary; | |
18 } | |
19 | |
20 namespace gfx { | |
21 class Size; | |
22 } | |
23 | |
24 namespace ui_surface_d3d9_utils { | |
25 | |
26 // Visible for testing. Loads the Direct3D9 library. Returns true on success. | |
27 SURFACE_EXPORT | |
28 bool LoadD3D9(base::ScopedNativeLibrary* storage); | |
29 | |
30 // Visible for testing. Creates a Direct3D9 device suitable for use with the | |
31 // accelerated surface code. Returns true on success. | |
32 SURFACE_EXPORT | |
33 bool CreateDevice(const base::ScopedNativeLibrary& d3d_module, | |
34 D3DDEVTYPE device_type, | |
35 uint32 presentation_interval, | |
36 IDirect3DDevice9Ex** device); | |
37 | |
38 // Calls the Vista+ (WDDM1.0) variant of CreateTexture that semantically | |
39 // opens a texture allocated (possibly in another process) as shared. The | |
40 // shared texture is identified by its surface handle. The resulting texture | |
41 // is written into |opened_texture|. | |
42 // | |
43 // Returns true on success. | |
44 SURFACE_EXPORT | |
45 bool OpenSharedTexture(IDirect3DDevice9* device, | |
46 int64 surface_handle, | |
47 const gfx::Size& size, | |
48 IDirect3DTexture9** opened_texture); | |
49 | |
50 // Create a one-off lockable surface of a specified size. | |
51 // | |
52 // Returns true on success. | |
53 SURFACE_EXPORT | |
54 bool CreateTemporaryLockableSurface(IDirect3DDevice9* device, | |
55 const gfx::Size& size, | |
56 IDirect3DSurface9** surface); | |
57 | |
58 // Create a one-off renderable texture of a specified size. The texture object | |
59 // as well as the surface object for the texture's level 0 is returned (callers | |
60 // almost always need to use both). | |
61 // | |
62 // Returns true on success. | |
63 SURFACE_EXPORT | |
64 bool CreateTemporaryRenderTargetTexture(IDirect3DDevice9* device, | |
65 const gfx::Size& size, | |
66 IDirect3DTexture9** texture, | |
67 IDirect3DSurface9** render_target); | |
68 | |
69 } // namespace ui_surface_d3d9_utils | |
70 | |
71 #endif // UI_SURFACE_D3D9_UTILS_WIN_H_ | |
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