diff options
Diffstat (limited to 'src/views/mac/SkNSView.mm')
-rw-r--r-- | src/views/mac/SkNSView.mm | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/src/views/mac/SkNSView.mm b/src/views/mac/SkNSView.mm index a6aa59cbef..9d52814afa 100644 --- a/src/views/mac/SkNSView.mm +++ b/src/views/mac/SkNSView.mm @@ -225,25 +225,36 @@ static SkKey raw2key(UInt32 raw) /////////////////////////////////////////////////////////////////////////////// #include <OpenGL/OpenGL.h> -CGLContextObj createGLContext() { +namespace { +CGLContextObj createGLContext(int msaaSampleCount) { GLint major, minor; CGLGetVersion(&major, &minor); - const CGLPixelFormatAttribute attributes[] = { + static const CGLPixelFormatAttribute attributes[] = { kCGLPFAStencilSize, (CGLPixelFormatAttribute)8, -#if USE_MSAA - kCGLPFASampleBuffers, 1, - kCGLPFAMultisample, - kCGLPFASamples, 8, -#endif kCGLPFAAccelerated, kCGLPFADoubleBuffer, (CGLPixelFormatAttribute)0 }; CGLPixelFormatObj format; - GLint npix; - CGLChoosePixelFormat(attributes, &format, &npix); + GLint npix = 0; + if (msaaSampleCount > 0) { + static int kAttributeCount = SK_ARRAY_COUNT(attributes); + CGLPixelFormatAttribute msaaAttributes[kAttributeCount + 5]; + memcpy(msaaAttributes, attributes, sizeof(attributes)); + SkASSERT(0 == msaaAttributes[kAttributeCount - 1]); + msaaAttributes[kAttributeCount - 1] = kCGLPFASampleBuffers; + msaaAttributes[kAttributeCount + 0] = (CGLPixelFormatAttribute)1; + msaaAttributes[kAttributeCount + 1] = kCGLPFAMultisample; + msaaAttributes[kAttributeCount + 2] = kCGLPFASamples; + msaaAttributes[kAttributeCount + 3] = (CGLPixelFormatAttribute)msaaSampleCount; + msaaAttributes[kAttributeCount + 4] = (CGLPixelFormatAttribute)0; + CGLChoosePixelFormat(msaaAttributes, &format, &npix); + } + if (!npix) { + CGLChoosePixelFormat(attributes, &format, &npix); + } CGLContextObj ctx; CGLCreateContext(format, NULL, &ctx); @@ -254,6 +265,7 @@ CGLContextObj createGLContext() { CGLSetCurrentContext(ctx); return ctx; } +} - (void)viewDidMoveToWindow { [super viewDidMoveToWindow]; @@ -265,12 +277,15 @@ CGLContextObj createGLContext() { [fGLContext setView:self]; } } -- (bool)attach:(SkOSWindow::SkBackEndTypes)attachType { +- (bool)attach:(SkOSWindow::SkBackEndTypes)attachType withMSAASampleCount:(int) sampleCount { if (nil == fGLContext) { - fGLContext = [[NSOpenGLContext alloc] initWithCGLContextObj:createGLContext()]; + CGLContextObj ctx = createGLContext(sampleCount); + fGLContext = [[NSOpenGLContext alloc] initWithCGLContextObj:ctx]; + CGLReleaseContext(ctx); if (NULL == fGLContext) { return false; } + [fGLContext setView:self]; } [fGLContext makeCurrentContext]; @@ -283,10 +298,13 @@ CGLContextObj createGLContext() { } - (void)detach { - [fGLContext clearDrawable]; + [fGLContext release]; + fGLContext = nil; } - (void)present { - [fGLContext flushBuffer]; + if (nil != fGLContext) { + [fGLContext flushBuffer]; + } } @end |