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Fixes retina-display buffer size.

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This commit is contained in:
Thomas Harte 2020-12-09 18:51:10 -05:00
parent db8b265e80
commit b589d6e3ef
1 changed files with 7 additions and 2 deletions
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9
OSBindings/Mac/Clock Signal/ScanTarget/CSScanTarget.mm
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@ -396,8 +396,13 @@ using BufferingScanTarget = Outputs::Display::BufferingScanTarget;
}
- (void)updateSizeBuffersToSize:(CGSize)size {
const NSUInteger frameBufferWidth = NSUInteger(size.width * _view.layer.contentsScale) * (_isUsingSupersampling ? 2 : 1);
const NSUInteger frameBufferHeight = NSUInteger(size.height * _view.layer.contentsScale) * (_isUsingSupersampling ? 2 : 1);
// Anecdotally, the size provided here, which ultimately is from _view.drawableSize,
// already factors in Retina-style scaling.
//
// 16384 has been the maximum texture size in all Mac versions of Metal so far, and
// I haven't yet found a way to query it dynamically. So it's hard-coded.
const NSUInteger frameBufferWidth = MIN(NSUInteger(size.width) * (_isUsingSupersampling ? 2 : 1), 16384);
const NSUInteger frameBufferHeight = MIN(NSUInteger(size.height) * (_isUsingSupersampling ? 2 : 1), 16384);
// Generate a framebuffer and a stencil.
MTLTextureDescriptor *const textureDescriptor = [MTLTextureDescriptor