mirrors
/
bgfx
mirror of https://github.com/bkaradzic/bgfx
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

- Implemented BGFX_CAPS_SWAP_CHAIN in OpenGl on Macos (#2400)

This commit is contained in:
Juan Carlos González Amestoy 2021-02-22 17:45:25 +01:00 committed by GitHub
parent efaa20b4a3
commit 8b209012b1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 101 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

104
src/glcontext_nsgl.mm
View File

@ -21,22 +21,119 @@ namespace bgfx { namespace gl
struct SwapChainGL
{
SwapChainGL(void* _nwh)
SwapChainGL(void* _nwh,NSOpenGLContext *_context)
{
BX_UNUSED(_nwh);
NSObject* nwh=(NSObject*)_nwh;
NSWindow* nsWindow = nil;
NSView* contentView = nil;
if ([nwh isKindOfClass:[NSView class]])
{
contentView = (NSView*)nwh;
}
else if ([nwh isKindOfClass:[NSWindow class]])
{
nsWindow = (NSWindow*)nwh;
contentView = [nsWindow contentView];
}
#if defined(MAC_OS_X_VERSION_MAX_ALLOWED) && (MAC_OS_X_VERSION_MAX_ALLOWED >= 1070)
NSOpenGLPixelFormatAttribute profile =
#if BGFX_CONFIG_RENDERER_OPENGL >= 31
NSOpenGLProfileVersion3_2Core
#else
NSOpenGLProfileVersionLegacy
#endif // BGFX_CONFIG_RENDERER_OPENGL >= 31
;
#endif // defined(MAC_OS_X_VERSION_MAX_ALLOWED) && (MAC_OS_X_VERSION_MAX_ALLOWED >= 1070)
NSOpenGLPixelFormatAttribute pixelFormatAttributes[] = {
#if defined(MAC_OS_X_VERSION_MAX_ALLOWED) && (MAC_OS_X_VERSION_MAX_ALLOWED >= 1070)
NSOpenGLPFAOpenGLProfile, profile,
#endif // defined(MAC_OS_X_VERSION_MAX_ALLOWED) && (MAC_OS_X_VERSION_MAX_ALLOWED >= 1070)
NSOpenGLPFAColorSize, 24,
NSOpenGLPFAAlphaSize, 8,
NSOpenGLPFADepthSize, 24,
NSOpenGLPFAStencilSize, 8,
NSOpenGLPFADoubleBuffer, true,
NSOpenGLPFAAccelerated, true,
NSOpenGLPFANoRecovery, true,
0, 0,
};
NSOpenGLPixelFormat* pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:pixelFormatAttributes];
BGFX_FATAL(NULL != pixelFormat, Fatal::UnableToInitialize, "Failed to initialize pixel format.");
NSRect glViewRect = [contentView bounds];
NSOpenGLView* glView = [[NSOpenGLView alloc] initWithFrame:glViewRect pixelFormat:pixelFormat];
// GLFW creates a helper contentView that handles things like keyboard and drag and
// drop events. We don't want to clobber that view if it exists. Instead we just
// add ourselves as a subview and make the view resize automatically.
if (nil != contentView)
{
[glView setAutoresizingMask:( NSViewHeightSizable |
NSViewWidthSizable |
NSViewMinXMargin |
NSViewMaxXMargin |
NSViewMinYMargin |
NSViewMaxYMargin )];
[contentView addSubview:glView];
}
else
{
if (nil != nsWindow)
[nsWindow setContentView:glView];
}
NSOpenGLContext* glContext = [[NSOpenGLContext alloc] initWithFormat:pixelFormat shareContext:_context];
BGFX_FATAL(NULL != glContext, Fatal::UnableToInitialize, "Failed to initialize GL context.");
void (^attachBlock)(void) = ^(void) {
[glView setOpenGLContext: glContext];
[glContext setView:glView];
};
if([NSThread isMainThread])
{
attachBlock();
}
else
{
dispatch_sync(dispatch_get_main_queue(),attachBlock);
}
[pixelFormat release];
[glContext makeCurrentContext];
GLint interval = 0;
[glContext setValues:&interval forParameter:NSOpenGLCPSwapInterval];
m_view = glView;
m_context = glContext;
}
~SwapChainGL()
{
if(m_context!=nil) [m_context release];
if(m_view!=nil) [m_view release];
}
void makeCurrent()
{
[m_context makeCurrentContext];
}
void swapBuffers()
{
[m_context makeCurrentContext];
[m_context flushBuffer];
}
NSOpenGLView *m_view;
NSOpenGLContext *m_context;
};
class AutoreleasePoolHolder
@ -202,12 +299,13 @@ namespace bgfx { namespace gl
if ([nwh respondsToSelector:@selector(backingScaleFactor)] && (1.0f < [(id)nwh backingScaleFactor]))
caps |= BGFX_CAPS_HIDPI;
#endif // defined(MAC_OS_X_VERSION_MAX_ALLOWED) && (MAC_OS_X_VERSION_MAX_ALLOWED >= 1070)
caps |= BGFX_CAPS_SWAP_CHAIN;
return caps;
}
SwapChainGL* GlContext::createSwapChain(void* _nwh)
{
return BX_NEW(g_allocator, SwapChainGL)(_nwh);
return BX_NEW(g_allocator, SwapChainGL)(_nwh,(NSOpenGLContext*)m_context);
}
void GlContext::destroySwapChain(SwapChainGL* _swapChain)