-
Notifications
You must be signed in to change notification settings - Fork 2.6k
/
AGL.mm
149 lines (123 loc) · 3.7 KB
/
AGL.mm
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
// Copyright 2012 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Common/GL/GLInterface/AGL.h"
#include "Common/Logging/Log.h"
static bool UpdateCachedDimensions(NSView* view, u32* width, u32* height)
{
NSWindow* window = [view window];
NSSize size = [view frame].size;
const CGFloat scale = [window backingScaleFactor];
u32 new_width = static_cast<u32>(size.width * scale);
u32 new_height = static_cast<u32>(size.height * scale);
if (*width == new_width && *height == new_height)
return false;
*width = new_width;
*height = new_height;
return true;
}
static bool AttachContextToView(NSOpenGLContext* context, NSView* view, u32* width, u32* height)
{
// Enable high-resolution display support.
[view setWantsBestResolutionOpenGLSurface:YES];
NSWindow* window = [view window];
if (window == nil)
{
ERROR_LOG(VIDEO, "failed to get NSWindow");
return false;
}
(void)UpdateCachedDimensions(view, width, height);
[window makeFirstResponder:view];
[context setView:view];
[window makeKeyAndOrderFront:nil];
return true;
}
GLContextAGL::~GLContextAGL()
{
if ([NSOpenGLContext currentContext] == m_context)
[NSOpenGLContext clearCurrentContext];
if (m_context)
{
[m_context clearDrawable];
[m_context release];
}
if (m_pixel_format)
[m_pixel_format release];
}
bool GLContextAGL::IsHeadless() const
{
return !m_view;
}
void GLContextAGL::Swap()
{
[m_context flushBuffer];
}
// Create rendering window.
// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
bool GLContextAGL::Initialize(void* display_handle, void* window_handle, bool stereo, bool core)
{
NSOpenGLPixelFormatAttribute attr[] = {
NSOpenGLPFADoubleBuffer,
NSOpenGLPFAOpenGLProfile,
core ? NSOpenGLProfileVersion3_2Core : NSOpenGLProfileVersionLegacy,
NSOpenGLPFAAccelerated,
stereo ? NSOpenGLPFAStereo : static_cast<NSOpenGLPixelFormatAttribute>(0),
0};
m_pixel_format = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr];
if (m_pixel_format == nil)
{
ERROR_LOG(VIDEO, "failed to create pixel format");
return false;
}
m_context = [[NSOpenGLContext alloc] initWithFormat:m_pixel_format shareContext:nil];
if (m_context == nil)
{
ERROR_LOG(VIDEO, "failed to create context");
return false;
}
if (!window_handle)
return true;
m_view = static_cast<NSView*>(window_handle);
m_opengl_mode = Mode::OpenGL;
if (!AttachContextToView(m_context, m_view, &m_backbuffer_width, &m_backbuffer_height))
return false;
[m_context makeCurrentContext];
return true;
}
std::unique_ptr<GLContext> GLContextAGL::CreateSharedContext()
{
NSOpenGLContext* new_agl_context = [[NSOpenGLContext alloc] initWithFormat:m_pixel_format
shareContext:m_context];
if (new_agl_context == nil)
{
ERROR_LOG(VIDEO, "failed to create shared context");
return nullptr;
}
std::unique_ptr<GLContextAGL> new_context = std::make_unique<GLContextAGL>();
new_context->m_context = new_agl_context;
new_context->m_pixel_format = m_pixel_format;
[new_context->m_pixel_format retain];
new_context->m_is_shared = true;
return new_context;
}
bool GLContextAGL::MakeCurrent()
{
[m_context makeCurrentContext];
return true;
}
bool GLContextAGL::ClearCurrent()
{
[NSOpenGLContext clearCurrentContext];
return true;
}
void GLContextAGL::Update()
{
if (!m_view)
return;
if (UpdateCachedDimensions(m_view, &m_backbuffer_width, &m_backbuffer_height))
[m_context update];
}
void GLContextAGL::SwapInterval(int interval)
{
[m_context setValues:static_cast<GLint*>(&interval) forParameter:NSOpenGLCPSwapInterval];
}