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Added retina/hi-dpi display support

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スナッチャー 2021-01-09 02:09:49 -08:00 committed by GitHub
parent a957dc1a65
commit af49eec042
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 0 deletions
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14
projectfiles/xcode/Emulator/Views/FBScreenView.mm
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@ -55,6 +55,7 @@ static CVReturn displayLinkCallback(CVDisplayLinkRef displayLink,
GLint textureFormat;
CVDisplayLinkRef displayLink;
BOOL useDisplayLink;
GLfloat backingScaleFactor;
}
#pragma mark - Initialize, Dealloc
@ -76,6 +77,11 @@ static CVReturn displayLinkCallback(CVDisplayLinkRef displayLink,
_lastMouseAction = CFAbsoluteTimeGetCurrent();
_lastCursorPosition = NSMakePoint(-1, -1);
textureFormat = GL_UNSIGNED_SHORT_5_6_5;
backingScaleFactor = 1;
if ([self respondsToSelector:@selector(setWantsBestResolutionOpenGLSurface:)]) {
self.wantsBestResolutionOpenGLSurface = YES;
}
[self resetTrackingArea];
}
@ -159,6 +165,9 @@ static CVReturn displayLinkCallback(CVDisplayLinkRef displayLink,
viewBounds = self.bounds;
viewSize = [self convertRectToBacking:viewBounds].size;
if ([self.window respondsToSelector:@selector(backingScaleFactor)]) {
backingScaleFactor = self.window.backingScaleFactor;
}
[self.openGLContext makeCurrentContext];
CGLLockContext(self.openGLContext.CGLContextObj);
@ -405,6 +414,11 @@ static CVReturn displayLinkCallback(CVDisplayLinkRef displayLink,
NSSize size = viewSize;
CGFloat offset = 0;
if (backingScaleFactor != 1) {
size = NSMakeSize((int)(size.width / backingScaleFactor),
(int)(size.height / backingScaleFactor));
}
glBegin(GL_QUADS);
glTexCoord2f(0.0, 0.0);
glVertex3f(-offset, 0.0, 0.0);