1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
#include "gl_context_egl.h"
#include "EGL/eglext.h"
using namespace Platform;
void ContextEGL::release_current() {
eglMakeCurrent(mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, mEglContext);
};
void ContextEGL::make_current() {
eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext);
};
int ContextEGL::get_window_width() {
return width;
};
int ContextEGL::get_window_height() {
return height;
};
void ContextEGL::reset() {
cleanup();
window = CoreWindow::GetForCurrentThread();
initialize();
};
void ContextEGL::swap_buffers() {
if (eglSwapBuffers(mEglDisplay, mEglSurface) != EGL_TRUE)
{
cleanup();
window = CoreWindow::GetForCurrentThread();
initialize();
// tell rasterizer to reload textures and stuff?
}
};
Error ContextEGL::initialize() {
EGLint configAttribList[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_DEPTH_SIZE, 8,
EGL_STENCIL_SIZE, 8,
EGL_SAMPLE_BUFFERS, 0,
EGL_NONE
};
EGLint surfaceAttribList[] = {
EGL_NONE, EGL_NONE
};
EGLint numConfigs = 0;
EGLint majorVersion = 1;
EGLint minorVersion = 0;
EGLDisplay display = EGL_NO_DISPLAY;
EGLContext context = EGL_NO_CONTEXT;
EGLSurface surface = EGL_NO_SURFACE;
EGLConfig config = nullptr;
EGLint contextAttribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE, EGL_NONE };
try {
const EGLint displayAttributes[] =
{
EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE, 9,
EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE, 3,
EGL_NONE,
};
PFNEGLGETPLATFORMDISPLAYEXTPROC eglGetPlatformDisplayEXT = reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>(eglGetProcAddress("eglGetPlatformDisplayEXT"));
if (!eglGetPlatformDisplayEXT)
{
throw Exception::CreateException(E_FAIL, L"Failed to get function eglGetPlatformDisplayEXT");
}
display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, EGL_DEFAULT_DISPLAY, displayAttributes);
if (display == EGL_NO_DISPLAY)
{
throw Exception::CreateException(E_FAIL, L"Failed to get default EGL display");
}
if (eglInitialize(display, &majorVersion, &minorVersion) == EGL_FALSE)
{
throw Exception::CreateException(E_FAIL, L"Failed to initialize EGL");
}
if (eglGetConfigs(display, NULL, 0, &numConfigs) == EGL_FALSE)
{
throw Exception::CreateException(E_FAIL, L"Failed to get EGLConfig count");
}
if (eglChooseConfig(display, configAttribList, &config, 1, &numConfigs) == EGL_FALSE)
{
throw Exception::CreateException(E_FAIL, L"Failed to choose first EGLConfig count");
}
surface = eglCreateWindowSurface(display, config, reinterpret_cast<IInspectable*>(window), surfaceAttribList);
if (surface == EGL_NO_SURFACE)
{
throw Exception::CreateException(E_FAIL, L"Failed to create EGL fullscreen surface");
}
context = eglCreateContext(display, config, EGL_NO_CONTEXT, contextAttribs);
if (context == EGL_NO_CONTEXT)
{
throw Exception::CreateException(E_FAIL, L"Failed to create EGL context");
}
if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
{
throw Exception::CreateException(E_FAIL, L"Failed to make fullscreen EGLSurface current");
}
} catch (...) {
return FAILED;
};
mEglDisplay = display;
mEglSurface = surface;
mEglContext = context;
eglQuerySurface(display,surface,EGL_WIDTH,&width);
eglQuerySurface(display,surface,EGL_HEIGHT,&height);
return OK;
};
void ContextEGL::cleanup() {
if (mEglDisplay != EGL_NO_DISPLAY && mEglSurface != EGL_NO_SURFACE)
{
eglDestroySurface(mEglDisplay, mEglSurface);
mEglSurface = EGL_NO_SURFACE;
}
if (mEglDisplay != EGL_NO_DISPLAY && mEglContext != EGL_NO_CONTEXT)
{
eglDestroyContext(mEglDisplay, mEglContext);
mEglContext = EGL_NO_CONTEXT;
}
if (mEglDisplay != EGL_NO_DISPLAY)
{
eglTerminate(mEglDisplay);
mEglDisplay = EGL_NO_DISPLAY;
}
};
ContextEGL::ContextEGL(CoreWindow^ p_window) :
mEglDisplay(EGL_NO_DISPLAY),
mEglContext(EGL_NO_CONTEXT),
mEglSurface(EGL_NO_SURFACE)
{
window = p_window;
};
ContextEGL::~ContextEGL() {
cleanup();
};
|