| commit | f9052ed78e935492c95dfc167edfba29d6f5b654 | |
| author | Nikolay Sivov <nsivov@codeweavers.com> | |
| Mon, 12 Aug 2019 10:42:07 +0000 (12 13:42 +0300) | ||
| committer | Alexander Köplinger <alex.koeplinger@outlook.com> | |
| Mon, 12 Aug 2019 10:42:07 +0000 (12 12:42 +0200) | ||
| tree | 983b1566cfb4871250b14e29bb489c718cfefa7e | treesnapshot (tar.gz zip) |
| parent | c70b4cc3cc8ef19b9b5c25a96ad23421d1b65175 | commitdiff |
[System.Drawing] Use CoreFX implementation of BufferedGraphics on Windows (#16163)
The issue was made visible with .NET Core WinForms. Some controls draw text with DrawTextEx to intermediate Graphics based on Bitmap, that later it's moved back to main Graphics with DrawImage. This results in a lost of transparency component along the way, making antialiased glyph bitmaps draw and B/W. Corruption is visible with gray antialiasing, but is more severe in subpixel modes.
I verified that same happens with gdiplus on Windows, code from CoreFX works correctly.
The issue was made visible with .NET Core WinForms. Some controls draw text with DrawTextEx to intermediate Graphics based on Bitmap, that later it's moved back to main Graphics with DrawImage. This results in a lost of transparency component along the way, making antialiased glyph bitmaps draw and B/W. Corruption is visible with gray antialiasing, but is more severe in subpixel modes.
I verified that same happens with gdiplus on Windows, code from CoreFX works correctly.
| mcs/class/System.Drawing/System.Drawing.csproj | diffblobblamehistory | |
| mcs/class/System.Drawing/win32_net_4_x_System.Drawing.dll.exclude.sources | [new file with mode: 0644] | blob |
| mcs/class/System.Drawing/win32_net_4_x_System.Drawing.dll.sources | [new file with mode: 0644] | blob |