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Updated support for legacy renderer in Cocoa backend

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Added fallback to legacy profile when creation of pixel format for core context failed
Added handling of -glversion command line switch
This commit is contained in:
alexey.lysiuk 2016-09-04 15:23:29 +03:00
parent d2ead39bcc
commit 108dcf122a
1 changed files with 52 additions and 19 deletions
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71
src/posix/cocoa/i_video.mm
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@ -459,23 +459,14 @@ CocoaWindow* CreateCocoaWindow(const NSUInteger styleMask)
return window; return window;
} }
} // unnamed namespace enum OpenGLProfile
// ---------------------------------------------------------------------------
CocoaVideo::CocoaVideo()
: m_window(CreateCocoaWindow(STYLE_MASK_WINDOWED))
, m_width(-1)
, m_height(-1)
, m_fullscreen(false)
, m_hiDPI(false)
{ {
memset(&m_modeIterator, 0, sizeof m_modeIterator); Core,
Legacy
// Set attributes for OpenGL context };
NSOpenGLPixelFormat* CreatePixelFormat(const OpenGLProfile profile)
{
NSOpenGLPixelFormatAttribute attributes[16]; NSOpenGLPixelFormatAttribute attributes[16];
size_t i = 0; size_t i = 0;
@ -492,17 +483,59 @@ CocoaVideo::CocoaVideo()
attributes[i++] = NSOpenGLPFAAllowOfflineRenderers; attributes[i++] = NSOpenGLPFAAllowOfflineRenderers;
} }
if (NSAppKitVersionNumber >= AppKit10_7) if (NSAppKitVersionNumber >= AppKit10_7 && OpenGLProfile::Core == profile)
{ {
NSOpenGLPixelFormatAttribute profile = NSOpenGLProfileVersion3_2Core;
const char* const glversion = Args->CheckValue("-glversion");
if (nullptr != glversion)
{
const double version = strtod(glversion, nullptr) + 0.01;
if (version < 3.2)
{
profile = NSOpenGLProfileVersionLegacy;
}
}
attributes[i++] = NSOpenGLPFAOpenGLProfile; attributes[i++] = NSOpenGLPFAOpenGLProfile;
attributes[i++] = NSOpenGLProfileVersion3_2Core; attributes[i++] = profile;
} }
attributes[i] = NSOpenGLPixelFormatAttribute(0); attributes[i] = NSOpenGLPixelFormatAttribute(0);
// Create OpenGL context and view return [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes];
}
NSOpenGLPixelFormat *pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes]; } // unnamed namespace
// ---------------------------------------------------------------------------
CocoaVideo::CocoaVideo()
: m_window(CreateCocoaWindow(STYLE_MASK_WINDOWED))
, m_width(-1)
, m_height(-1)
, m_fullscreen(false)
, m_hiDPI(false)
{
memset(&m_modeIterator, 0, sizeof m_modeIterator);
// Create OpenGL pixel format
NSOpenGLPixelFormat* pixelFormat = CreatePixelFormat(OpenGLProfile::Core);
if (nil == pixelFormat)
{
pixelFormat = CreatePixelFormat(OpenGLProfile::Legacy);
if (nil == pixelFormat)
{
I_FatalError("Cannot OpenGL create pixel format, graphics hardware is not supported");
}
}
// Create OpenGL context and view
const NSRect contentRect = [m_window contentRectForFrameRect:[m_window frame]]; const NSRect contentRect = [m_window contentRectForFrameRect:[m_window frame]];
NSOpenGLView* glView = [[CocoaView alloc] initWithFrame:contentRect NSOpenGLView* glView = [[CocoaView alloc] initWithFrame:contentRect