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 "base/win/scoped_comptr.h" 15#include "ui/surface/surface_export.h" 16 17namespace base { 18class ScopedNativeLibrary; 19} 20 21namespace gfx { 22class Size; 23} 24 25namespace ui_surface_d3d9_utils { 26 27// Visible for testing. Loads the Direct3D9 library. Returns true on success. 28SURFACE_EXPORT 29bool LoadD3D9(base::ScopedNativeLibrary* storage); 30 31// Visible for testing. Creates a Direct3D9 device suitable for use with the 32// accelerated surface code. Returns true on success. 33SURFACE_EXPORT 34bool CreateDevice(const base::ScopedNativeLibrary& d3d_module, 35 uint64 adapter_luid, 36 D3DDEVTYPE device_type, 37 uint32 presentation_interval, 38 IDirect3DDevice9Ex** device); 39 40// Calls the Vista+ (WDDM1.0) variant of CreateTexture that semantically opens a 41// texture allocated as shared. In this way textures allocated by another 42// process can be used by a D3D context in this process. The shared texture is 43// identified by its surface handle. The resulting texture is written into 44// |opened_texture|. 45// 46// Returns true on success. 47SURFACE_EXPORT 48bool OpenSharedTexture(IDirect3DDevice9* device, 49 int64 surface_handle, 50 const gfx::Size& size, 51 IDirect3DTexture9** opened_texture); 52 53// Ensures that |surface| is a lockable surface of a specified |size|. If 54// |*surface| is non-null and has dimensions that match |size|, it is reused. 55// Otherwise, a new resource is created and the old one (if any) is freed. 56// 57// Returns true on success. 58SURFACE_EXPORT 59bool CreateOrReuseLockableSurface( 60 IDirect3DDevice9* device, 61 const gfx::Size& size, 62 base::win::ScopedComPtr<IDirect3DSurface9>* surface); 63 64// Ensures that |texture| is a render target texture of a specified |size|. If 65// |*texture| is non-null and has dimensions that match |size|, it is reused. 66// Otherwise, a new resource is created and the old one (if any) is freed. 67// 68// A reference to level 0 of the resulting texture is placed into 69// |render_target|. 70// 71// Returns true on success. 72SURFACE_EXPORT 73bool CreateOrReuseRenderTargetTexture( 74 IDirect3DDevice9* device, 75 const gfx::Size& size, 76 base::win::ScopedComPtr<IDirect3DTexture9>* texture, 77 IDirect3DSurface9** render_target); 78 79SURFACE_EXPORT 80gfx::Size GetSize(IDirect3DTexture9* texture); 81 82SURFACE_EXPORT 83gfx::Size GetSize(IDirect3DSurface9* surface); 84 85} // namespace ui_surface_d3d9_utils 86 87#endif // UI_SURFACE_D3D9_UTILS_WIN_H_ 88