1 //
2 // Copyright 2015 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 // DeviceD3D.cpp: D3D implementation of egl::Device
8
9 #include "libANGLE/renderer/d3d/DeviceD3D.h"
10
11 #include "libANGLE/Device.h"
12 #include "libANGLE/Display.h"
13
14 #include <EGL/eglext.h>
15
16 namespace rx
17 {
18
DeviceD3D(GLint deviceType,void * nativeDevice)19 DeviceD3D::DeviceD3D(GLint deviceType, void *nativeDevice)
20 : mDevice(nativeDevice), mDeviceType(deviceType), mIsInitialized(false)
21 {}
22
~DeviceD3D()23 DeviceD3D::~DeviceD3D()
24 {
25 #if defined(ANGLE_ENABLE_D3D11)
26 if (mIsInitialized && mDeviceType == EGL_D3D11_DEVICE_ANGLE)
27 {
28 // DeviceD3D holds a ref to an externally-sourced D3D11 device. We must release it.
29 ID3D11Device *device = static_cast<ID3D11Device *>(mDevice);
30 device->Release();
31 }
32 #endif
33 }
34
getAttribute(const egl::Display * display,EGLint attribute,void ** outValue)35 egl::Error DeviceD3D::getAttribute(const egl::Display *display, EGLint attribute, void **outValue)
36 {
37 ASSERT(mIsInitialized);
38 ANGLE_UNUSED_VARIABLE(display);
39 // Validated at higher levels.
40 ASSERT(getType() == attribute);
41 *outValue = mDevice;
42 return egl::NoError();
43 }
44
initialize()45 egl::Error DeviceD3D::initialize()
46 {
47 ASSERT(!mIsInitialized);
48
49 #if defined(ANGLE_ENABLE_D3D11)
50 if (mDeviceType == EGL_D3D11_DEVICE_ANGLE)
51 {
52 // Validate the device
53 IUnknown *iunknown = static_cast<IUnknown *>(mDevice);
54
55 ID3D11Device *d3dDevice = nullptr;
56 HRESULT hr =
57 iunknown->QueryInterface(__uuidof(ID3D11Device), reinterpret_cast<void **>(&d3dDevice));
58 if (FAILED(hr))
59 {
60 return egl::EglBadAttribute() << "Invalid D3D device passed into EGLDeviceEXT";
61 }
62
63 // The QI to ID3D11Device adds a ref to the D3D11 device.
64 // Deliberately don't release the ref here, so that the DeviceD3D holds a ref to the
65 // D3D11 device.
66 }
67 #endif
68
69 mIsInitialized = true;
70
71 return egl::NoError();
72 }
73
getType()74 EGLint DeviceD3D::getType()
75 {
76 return mDeviceType;
77 }
78
generateExtensions(egl::DeviceExtensions * outExtensions) const79 void DeviceD3D::generateExtensions(egl::DeviceExtensions *outExtensions) const
80 {
81 outExtensions->deviceD3D = true;
82 }
83
84 } // namespace rx
85