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Note that motivation for the change should be in the Motivation section below, and this part should answer the question "What?" rather than "Why?". --> | Note that motivation for the change should be in the Motivation section below, and this part should answer the question "What?" rather than "Why?". --> | ||
This proposal plans to provide some popular bitmap fonts to use with pango. | This proposal plans to provide some additional popular bitmap fonts in OpenType format to use with pango. | ||
By | By providing some bitmap fonts from BDF/PCF format to OpenType format, | ||
applications like gnome-terminal can continue to use some bitmap fonts | applications like gnome-terminal can continue to use some bitmap fonts | ||
with the pango 1.44 package. | with the pango 1.44 package. | ||
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This should link to your home wiki page so we know who you are. | This should link to your home wiki page so we know who you are. | ||
--> | --> | ||
* Name: [[User:pwu| Peng Wu]] [[User:tagoh| Akira Tagoh]] | * Name: [[User:pwu| Peng Wu]] | ||
* Email: pwu@redhat.com | |||
* Email: | * Name: [[User:tagoh| Akira Tagoh]] | ||
* Email: tagoh@redhat.com | |||
<!--- UNCOMMENT only for Changes with assigned Shepherd (by FESCo) | <!--- UNCOMMENT only for Changes with assigned Shepherd (by FESCo) | ||
* FESCo shepherd: [[User:FASAccountName| Shehperd name]] <email address> | * FESCo shepherd: [[User:FASAccountName| Shehperd name]] <email address> | ||
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CLOSED as NEXTRELEASE -> change is completed and verified and will be delivered in next release under development | CLOSED as NEXTRELEASE -> change is completed and verified and will be delivered in next release under development | ||
--> | --> | ||
* Tracker bug: | * Tracker bug: [https://bugzilla.redhat.com/show_bug.cgi?id=1797604 #1797604] | ||
* Release notes tracker: | * Release notes tracker: [https://pagure.io/fedora-docs/release-notes/issue/443 #443] | ||
== Detailed Description == | == Detailed Description == | ||
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<!-- Expand on the summary, if appropriate. A couple sentences suffices to explain the goal, but the more details you can provide the better. --> | <!-- Expand on the summary, if appropriate. A couple sentences suffices to explain the goal, but the more details you can provide the better. --> | ||
In Fedora 31, pango has been upgraded to 1.44, and | In Fedora 31, pango has been upgraded to 1.44, and switched to use the HarfBuzz library instead of FreeType. | ||
But | But HarfBuzz doesn't support bitmap fonts or Adobe Type 1 fonts. | ||
In gnome-terminal, the bitmap fonts can't be used. | In gnome-terminal, the bitmap fonts can't be used. | ||
In order to use the bitmap fonts with pango 1.44, | In order to use the bitmap fonts with pango 1.44, | ||
we propose to provide some popular bitmap fonts in OpenType format by fonttosfnt tool. | we propose to provide some additional popular bitmap fonts in OpenType format by using fonttosfnt tool. | ||
The bitmap font in OpenType format will be contained in new sub package. | |||
User can choose to install the bitmap font either in legacy format or OpenType format from different sub packages. | |||
If install both legacy format and OpenType format fonts, sometimes it is not clear which format of the bitmap font is used. | |||
Plan to add some Conflicts line between legacy format and OpenType format font packages to avoid confusion. | |||
We plan to provide 5-10 bitmap fonts in OpenType format in some packages. | We plan to provide 5-10 bitmap fonts in OpenType format in some packages. | ||
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Some popular bitmap fonts are used by many users. | Some popular bitmap fonts are used by many users. | ||
After | After providing the bitmap fonts in OpenType format, users can continue to use the bitmap fonts in gnome-terminal, etc. | ||
== Scope == | == Scope == | ||
* Proposal owners: | * Proposal owners: | ||
** Convert the following bitmap fonts packages to OpenType format and make them sub-packaged. | |||
*** bitmap-lucida-typewriter-fonts | |||
*** terminus-fonts | |||
*** ucs-miscfixed-font | |||
<!-- What work do the feature owners have to accomplish to complete the feature in time for release? Is it a large change affecting many parts of the distribution or is it a very isolated change? What are those changes?--> | <!-- What work do the feature owners have to accomplish to complete the feature in time for release? Is it a large change affecting many parts of the distribution or is it a very isolated change? What are those changes?--> | ||
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<!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | ||
Please install the terminus-fonts package. | |||
Check if the "Terminus Regular" fonts is available in gnome-terminal, | |||
and use "Terminus Regular" fonts in gnome-terminal. | |||
== User Experience == | == User Experience == | ||
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In Fedora 32, we provide bitmap fonts with modern font format (OpenType Bitmap Font) to use with gnome-terminal and other applications which uses pango for font rendering. | In Fedora 32, we provide bitmap fonts with modern font format (OpenType Bitmap Font) to use with gnome-terminal and other applications which uses pango for font rendering. | ||
[[Category: | [[Category:ChangeAcceptedF32]] | ||
<!-- When your change proposal page is completed and ready for review and announcement --> | <!-- When your change proposal page is completed and ready for review and announcement --> | ||
<!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler --> | <!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler --> | ||
Latest revision as of 07:15, 25 February 2020
Provide OpenType Bitmap Fonts
Summary
This proposal plans to provide some additional popular bitmap fonts in OpenType format to use with pango.
By providing some bitmap fonts from BDF/PCF format to OpenType format, applications like gnome-terminal can continue to use some bitmap fonts with the pango 1.44 package.
Owner
- Name: Peng Wu
- Email: pwu@redhat.com
- Name: Akira Tagoh
- Email: tagoh@redhat.com
Current status
- Targeted release: Fedora 32
- Last updated: 2020-02-25
- Tracker bug: #1797604
- Release notes tracker: #443
Detailed Description
In Fedora 31, pango has been upgraded to 1.44, and switched to use the HarfBuzz library instead of FreeType.
But HarfBuzz doesn't support bitmap fonts or Adobe Type 1 fonts. In gnome-terminal, the bitmap fonts can't be used.
In order to use the bitmap fonts with pango 1.44, we propose to provide some additional popular bitmap fonts in OpenType format by using fonttosfnt tool.
The bitmap font in OpenType format will be contained in new sub package. User can choose to install the bitmap font either in legacy format or OpenType format from different sub packages.
If install both legacy format and OpenType format fonts, sometimes it is not clear which format of the bitmap font is used. Plan to add some Conflicts line between legacy format and OpenType format font packages to avoid confusion.
We plan to provide 5-10 bitmap fonts in OpenType format in some packages. The current font candidates are bitmap-lucida-typewriter-fonts, terminus-fonts and ucs-miscfixed-font.
Benefit to Fedora
Some popular bitmap fonts are used by many users.
After providing the bitmap fonts in OpenType format, users can continue to use the bitmap fonts in gnome-terminal, etc.
Scope
- Proposal owners:
- Convert the following bitmap fonts packages to OpenType format and make them sub-packaged.
- bitmap-lucida-typewriter-fonts
- terminus-fonts
- ucs-miscfixed-font
- Convert the following bitmap fonts packages to OpenType format and make them sub-packaged.
- Other developers: N/A (not a System Wide Change)
- Release engineering: Releng issue 9130 (a check of an impact with Release Engineering is needed)
- Policies and guidelines: N/A (not a System Wide Change)
- Trademark approval: N/A (not needed for this Change)
Upgrade/compatibility impact
N/A (not a System Wide Change)
How To Test
Please install the terminus-fonts package.
Check if the "Terminus Regular" fonts is available in gnome-terminal, and use "Terminus Regular" fonts in gnome-terminal.
User Experience
After converting the bitmap fonts, users will be able to use the popular bitmap fonts again with pango 1.44 in gnome-terminal, etc.
The OpenType bitmap fonts should have the similar shape for each glyph, compared with the original bitmap fonts.
Dependencies
N/A (not a System Wide Change)
Contingency Plan
- Contingency mechanism: N/A (not a System Wide Change)
- Contingency deadline: N/A (not a System Wide Change)
- Blocks release? N/A (not a System Wide Change)
- Blocks product? product
Documentation
N/A (not a System Wide Change)
Release Notes
In Fedora 32, we provide bitmap fonts with modern font format (OpenType Bitmap Font) to use with gnome-terminal and other applications which uses pango for font rendering.