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| author | Kevin Walzer <kw@codebykevin.com> | 2016-07-15 10:47:18 (GMT) |
|---|---|---|
| committer | Kevin Walzer <kw@codebykevin.com> | 2016-07-15 10:47:18 (GMT) |
| commit | 657059c544043fca33be51d893ad79cdb8941e24 (patch) | |
| tree | 2709070b1ea361c2ed7993c57f868eadb0a34720 /macosx/tkMacOSXDraw.c | |
| parent | d4873b4490f6cbad7f5ef9d2b622f8ac5a6eaf7b (diff) | |
| download | tk-657059c544043fca33be51d893ad79cdb8941e24.zip tk-657059c544043fca33be51d893ad79cdb8941e24.tar.gz tk-657059c544043fca33be51d893ad79cdb8941e24.tar.bz2 | |
Fix for image/alpha rendering under hidpi/Retina displays on Mac OS; thanks to Marc Culler for assistance
Diffstat (limited to 'macosx/tkMacOSXDraw.c')
| -rw-r--r-- | macosx/tkMacOSXDraw.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/macosx/tkMacOSXDraw.c b/macosx/tkMacOSXDraw.c index d9b909b..f48538d 100644 --- a/macosx/tkMacOSXDraw.c +++ b/macosx/tkMacOSXDraw.c @@ -399,9 +399,11 @@ TkPutImage( CGImageRef img = CreateCGImageWithXImage(image); if (img) { + /* If the XImage has big pixels, rescale the source dimensions.*/ + int pp = image->pixelpower; DrawCGImage(d, gc, dc.context, img, gc->foreground, gc->background, - CGRectMake(0, 0, image->width, image->height), - CGRectMake(src_x, src_y, width, height), + CGRectMake(0, 0, image->width<<pp, image->height<<pp), + CGRectMake(src_x<<pp, src_y<<pp, width<<pp, height<<pp), CGRectMake(dest_x, dest_y, width, height)); CFRelease(img); } else { |