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Merge branch 'atlas_fixes'

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omar
2019-01-13 14:19:07 +01:00
parent 7e78865613 8df8482ef4
commit abdd39b700
8 changed files with 638 additions and 362 deletions
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5
docs/CHANGELOG.txt
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@ -72,6 +72,11 @@ Other Changes:
Missing calls to End(), past the assert, should not lead to crashes or to the fallback Debug window appearing on screen.
Those changes makes it easier to integrate dear imgui with a scripting language allowing, given asserts are redirected
into e.g. an error log and stopping the script execution.
- ImFontAtlas: Stb and FreeType: Atlas width is now properly based on total surface rather than glyph count (unless overridden with TexDesiredWidth).
- ImFontAtlas: Stb and FreeType: Fixed atlas builder so missing glyphs won't influence the atlas texture width. (#2233)
- ImFontAtlas: Stb and FreeType: Fixed atlas builder so duplicate glyphs (when merging fonts) won't be included in the rasterized atlas.
- ImFontAtlas: FreeType: Fixed abnormally high atlas height.
- ImFontAtlas: FreeType: Fixed support for any values of TexGlyphPadding (not just only 1).
- ImDrawList: Optimized some of the functions for performance of debug builds where non-inline function call cost are non-negligible.
(Our test UI scene on VS2015 Debug Win64 with /RTC1 went ~5.9 ms -> ~4.9 ms. In Release same scene stays at ~0.3 ms.)
- IO: Added BackendPlatformUserData, BackendRendererUserData, BackendLanguageUserData void* for storage use by back-ends.

5
docs/TODO.txt
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@ -235,9 +235,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- pie menus patterns (#434)
- markup: simple markup language for color change? (#902)
!- font: need handling of missing glyphs by not packing/rasterizing glyph 0 of a given font.
- font: MergeMode: flags to select overwriting or not.
- font: MergeMode: duplicate glyphs are stored in the atlas texture which is suboptimal.
- font: MergeMode: flags to select overwriting or not (this is now very easy with refactored ImFontAtlasBuildWithStbTruetype)
- font: free the Alpha buffer if user only requested RGBA.
!- font: better CalcTextSizeA() API, at least for simple use cases. current one is horrible (perhaps have simple vs extended versions).
- font: a CalcTextHeight() helper could run faster than CalcTextSize().y
@ -252,7 +250,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- font/draw: vertical and/or rotated text renderer (#705) - vertical is easier clipping wise
- font/draw: need to be able to specify wrap start position.
- font/draw: better reserve policy for large horizontal block of text (shouldn't reserve for all clipped lines)
- font: imgui_freetype.h alternative renderer (#618)
- font: optimization: for monospace font (like the default one) we can trim IndexXAdvance as long as trailing value is == FallbackXAdvance (need to make sure TAB is still correct).
- font: add support for kerning, probably optional. A) perhaps default to (32..128)^2 matrix ~ 9K entries = 36KB, then hash for non-ascii?. B) or sparse lookup into per-char list?
- font: add a simpler CalcTextSizeA() api? current one ok but not welcome if user needs to call it directly (without going through ImGui::CalcTextSize)