Re: Text Antialising bug [Re: GNOME Theme Improvements....]
Am 28.12.2010 21:10, schrieb David Chisnall: >> More GNOME theme improvements... >> >> http://heronsperch.blogspot.com/2010/12/bean-running-with-gnome-native-theme-as.html > > > This screenshot shows a bug with the text rendering in GNUstep. I'm not sure > exactly what is causing it - it could be in the text rendering code in -gui, > in -back, or in the view that draws the text... > > If you zoom in on any of the text on a grey background, you can see that it > has a white halo. It looks as if the text is being rendered as > black-on-white and then composited on top of the grey background. Is the > background colour for rendering text being incorrectly set as white when > drawing into a transparent view? Or is this more subtle? That's an interesting observation. Greg, which backend did you use to create the screen shot and if this was cairo, which version of cairo are you using? I am still not able to use cairo with my OpenSuse 11.3 and the ATI graphics driver. Otherwise I could test this myself, sorry. Fred ___ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
Re: Text Antialising bug [Re: GNOME Theme Improvements....]
Hey Guys, On Sat, Jan 1, 2011 at 7:47 AM, Fred Kiefer wrote: > Am 28.12.2010 21:10, schrieb David Chisnall: >>> More GNOME theme improvements... >>> >>> http://heronsperch.blogspot.com/2010/12/bean-running-with-gnome-native-theme-as.html >> >> >> This screenshot shows a bug with the text rendering in GNUstep. I'm not >> sure exactly what is causing it - it could be in the text rendering code in >> -gui, in -back, or in the view that draws the text... >> >> If you zoom in on any of the text on a grey background, you can see that it >> has a white halo. It looks as if the text is being rendered as >> black-on-white and then composited on top of the grey background. Is the >> background colour for rendering text being incorrectly set as white when >> drawing into a transparent view? Or is this more subtle? > > That's an interesting observation. > > Greg, which backend did you use to create the screen shot and if this > was cairo, which version of cairo are you using? It is cairo, here's the version... ii libcairo21.6.4-7 The Cairo 2D vector graphics library ii libcairo2-dev1.6.4-7 Development files for the Cairo 2D graphics library > I am still not able to use cairo with my OpenSuse 11.3 and the ATI > graphics driver. Otherwise I could test this myself, sorry. > > Fred > > ___ > Gnustep-dev mailing list > Gnustep-dev@gnu.org > http://lists.gnu.org/mailman/listinfo/gnustep-dev > Later, GC -- Gregory Casamento - GNUstep Lead/Principal Consultant, OLC, Inc. yahoo/skype: greg_casamento, aol: gjcasa (240)274-9630 (Cell) ___ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
Re: Text Antialising bug [Re: GNOME Theme Improvements....]
Text with GS + cairo looks fine to me - is this not just an artifact from the screenshot Gregory posted having been downscaled? On 2011-01-01, at 8:52 AM, Gregory Casamento wrote: > Hey Guys, > > On Sat, Jan 1, 2011 at 7:47 AM, Fred Kiefer wrote: >> Am 28.12.2010 21:10, schrieb David Chisnall: More GNOME theme improvements... http://heronsperch.blogspot.com/2010/12/bean-running-with-gnome-native-theme-as.html >>> >>> >>> This screenshot shows a bug with the text rendering in GNUstep. I'm not >>> sure exactly what is causing it - it could be in the text rendering code in >>> -gui, in -back, or in the view that draws the text... >>> >>> If you zoom in on any of the text on a grey background, you can see that it >>> has a white halo. It looks as if the text is being rendered as >>> black-on-white and then composited on top of the grey background. Is the >>> background colour for rendering text being incorrectly set as white when >>> drawing into a transparent view? Or is this more subtle? >> >> That's an interesting observation. >> >> Greg, which backend did you use to create the screen shot and if this >> was cairo, which version of cairo are you using? > > It is cairo, here's the version... > > ii libcairo21.6.4-7 > The Cairo 2D vector graphics library > ii libcairo2-dev1.6.4-7 > Development files for the Cairo 2D graphics library > > >> I am still not able to use cairo with my OpenSuse 11.3 and the ATI >> graphics driver. Otherwise I could test this myself, sorry. >> >> Fred >> >> ___ >> Gnustep-dev mailing list >> Gnustep-dev@gnu.org >> http://lists.gnu.org/mailman/listinfo/gnustep-dev >> > > Later, GC > > -- > Gregory Casamento - GNUstep Lead/Principal Consultant, OLC, Inc. > yahoo/skype: greg_casamento, aol: gjcasa > (240)274-9630 (Cell) > > ___ > Gnustep-dev mailing list > Gnustep-dev@gnu.org > http://lists.gnu.org/mailman/listinfo/gnustep-dev ___ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
Re: Text Antialising bug [Re: GNOME Theme Improvements....]
Looks like low quality jpeg compression to me. my ss has it too but only around the mice http://1.bp.blogspot.com/_hgWF81Upeu4/TR-CmdKS-dI/AHA/1ZXc0pCEP2k/s1600/.jpg ..okay, that was just a shameless advertisement injection. - Original message - > Hey Guys, > > On Sat, Jan 1, 2011 at 7:47 AM, Fred Kiefer wrote: > > Am 28.12.2010 21:10, schrieb David Chisnall: > > > > More GNOME theme improvements... > > > > > > > > http://heronsperch.blogspot.com/2010/12/bean-running-with-gnome-native-theme-as.html > > > > > > > > > This screenshot shows a bug with the text rendering in GNUstep. I'm > > > not sure exactly what is causing it - it could be in the text > > > rendering code in -gui, in -back, or in the view that draws the > > > text... > > > > > > If you zoom in on any of the text on a grey background, you can see > > > that it has a white halo. It looks as if the text is being rendered > > > as black-on-white and then composited on top of the grey background. > > > Is the background colour for rendering text being incorrectly set > > > as white when drawing into a transparent view? Or is this more > > > subtle? > > > > That's an interesting observation. > > > > Greg, which backend did you use to create the screen shot and if this > > was cairo, which version of cairo are you using? > > It is cairo, here's the version... > > ii libcairo2 1.6.4-7 > The Cairo 2D vector graphics library > ii libcairo2-dev 1.6.4-7 > Development files for the Cairo 2D graphics library > > > > I am still not able to use cairo with my OpenSuse 11.3 and the ATI > > graphics driver. Otherwise I could test this myself, sorry. > > > > Fred > > > > ___ > > Gnustep-dev mailing list > > Gnustep-dev@gnu.org > > http://lists.gnu.org/mailman/listinfo/gnustep-dev > > > > Later, GC > > -- > Gregory Casamento - GNUstep Lead/Principal Consultant, OLC, Inc. > yahoo/skype: greg_casamento, aol: gjcasa > (240)274-9630 (Cell) > > ___ > Gnustep-dev mailing list > Gnustep-dev@gnu.org > http://lists.gnu.org/mailman/listinfo/gnustep-dev ___ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
Re: Text Antialising bug [Re: GNOME Theme Improvements....]
On 1 Jan 2011, at 21:22, Banlu Kemiyatorn wrote: > Looks like low quality jpeg compression to me. Except that the screenshot is a png... > my ss has it too but only around the mice Interestingly, your screenshot doesn't have it around the text. Which back end are you using? David -- Sent from my IBM 1620 ___ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
Re: Text Antialising bug [Re: GNOME Theme Improvements....]
On Jan 1, 2011, at 22:17, David Chisnall wrote: > > On 1 Jan 2011, at 21:22, Banlu Kemiyatorn wrote: >> >> Looks like low quality jpeg compression to me. > > Except that the screenshot is a png... There are severe haloing artefacts around all edges in that picture, not just text. There's also a very faint, blurred grid of about 30x30 px squares (typically an effect of buggy sampling code), but little to no noise. It looks more like a sharpening filter than JPEG artefacts. -- Jens Ayton ___ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
Re: Text Antialising bug [Re: GNOME Theme Improvements....]
On Sun, Jan 2, 2011 at 4:17 AM, David Chisnall wrote: > On 1 Jan 2011, at 21:22, Banlu Kemiyatorn wrote: > >> Looks like low quality jpeg compression to me. > > Except that the screenshot is a png... Right, I actually viewed the header but I guessed it was converted back from some pipe-line. I believe Eric & Jens are right though. Greg seems to be too busy to clarify the point, we are glad you have life! >> my ss has it too but only around the mice > > > Interestingly, your screenshot doesn't have it around the text. Which back > end are you using? It was Art, here's a Cairo version http://2.bp.blogspot.com/_WFE4wEfTeTI/TR_Xgi1y6bI/A1I/mOlvAo_NdTU/s1600/.jpg > > David > > -- Sent from my IBM 1620 > > -- .. Banlu Kemiyatorn /.../\...\ 漫画家 |.../ \...| http://qstx.blogspot.com (Free Software Advocacy & Development) |../ \..| http://feedbat.blogspot.com (Studio Work For Hire) \/ \/ http://groundzerostudiocomplex.blogspot.com (Studio Research) ___ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
Re: Text Antialising bug [Re: GNOME Theme Improvements....]
Never too busy. This is what I thought it was a while back when David and I first talked since the picture is not full sized. I deliberately reduced it's size for display on the blog. Blogger.com gives the option to scale the picture down and I used that. I believe that the rendering issues are artifacts from the scale-down process. Could someone bring up the changes on their locale system to see if this happens in a live application? Thanks. GC On Sat, Jan 1, 2011 at 8:55 PM, Banlu Kemiyatorn wrote: > On Sun, Jan 2, 2011 at 4:17 AM, David Chisnall wrote: >> On 1 Jan 2011, at 21:22, Banlu Kemiyatorn wrote: >> >>> Looks like low quality jpeg compression to me. >> >> Except that the screenshot is a png... > > Right, I actually viewed the header but I guessed it was converted > back from some pipe-line. I believe Eric & Jens are right though. Greg > seems to be too busy to clarify the point, we are glad you have life! > >>> my ss has it too but only around the mice >> >> >> Interestingly, your screenshot doesn't have it around the text. Which back >> end are you using? > > It was Art, here's a Cairo version > http://2.bp.blogspot.com/_WFE4wEfTeTI/TR_Xgi1y6bI/A1I/mOlvAo_NdTU/s1600/.jpg >> >> David >> >> -- Sent from my IBM 1620 >> >> > > > > -- > .. Banlu Kemiyatorn > /.../\...\ 漫画家 > |.../ \...| http://qstx.blogspot.com (Free Software Advocacy & Development) > |../ \..| http://feedbat.blogspot.com (Studio Work For Hire) > \/ \/ http://groundzerostudiocomplex.blogspot.com (Studio Research) > -- Gregory Casamento - GNUstep Lead/Principal Consultant, OLC, Inc. yahoo/skype: greg_casamento, aol: gjcasa (240)274-9630 (Cell) ___ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
