ui/surface/d3d9_utils_win.h

   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 SURFACE_EXPORT
  70 gfx::Size GetSize(IDirect3DTexture9* texture);
  71
  72 SURFACE_EXPORT
  73 gfx::Size GetSize(IDirect3DSurface9* surface);
  74
  75 }  // namespace ui_surface_d3d9_utils
  76
  77 #endif  // UI_SURFACE_D3D9_UTILS_WIN_H_