- fixed how super sampled line textures are generated (and documented wrong assumption)
- switched to more samples and smaller thickness range
- tweaked super sampled texture selection to hide the texture changed better
- added animated thickness to demo to make it easier to evaluate thickness visual progression
- added super sampled textures in thickness range [1..3] to avoid visual pop
- fixed bug where fringe size was not properly applied in _AddRectTinyRounding
- optimized _AddRectTinyRounding to use less vertices
- changed _AddRectTinyRounding to use similar texturing logic as lines
- remove unused fractional line width texture
- added ImRsqrtPrecise() which adds Newton-Raphson iteration for more precision
- change calculation of miter_scale_factor so that it does not have a branch
- renamed IM_POLYLINE_APPEND_* macros to IM_APPEND_* and also use them in fill convex poly
- changed the convex poly miter calculation to match the polyline to make debugging and changes easier
- split the convex poly to separate loop when ImDrawFlags_MiterOnly is specified for less branches in common case
# Conflicts:
# imgui_draw.cpp
- added generic stroke position to all path rendering
- removed stroke folding in favor of limiting the miter width (simplifies the geometry cases)
- removed fractional stroke rendering in favor of using the integer sized rendering for everything
- the rationale is that the in-between sizes are a bit blurry anyways, and the error we get from scaling is visually acceptable
- added stroke position option for the demo
- updated the degenerate shape handling
- remove AddLine() stroke pos handling
- removed up commented out code.
- Added square cap rendering to the DrawPolyline, which can be turned on by ImDrawFlags_SquareCap
- Added draw flags to AddBezierCubic() and AddBezierQuadratic()
- add bevel handling for sharp corners
- add limit to the miter distance to avoid inner shape spikes
- add support for ImDrawFlags_MiterOnly to keep well behaved rendering fast
- Add ImDrawFlags_MiterOnly which is used to indicate that a path contains simple geometry and can be rendered using mitered corners
- Added handling of degenerated shapes for stroked rectangle, circle, ngon, and ellipse
- Render shapes filled when outline covers the whole shape
- Clamp very small circles and ngons, and use alpha fade below one pixel
- Added correct offset for ellipse
- added 2 variants of polyline rendering
- one handles integersized thickness using one strip of triangles along the line
- second handles any thickness using 2 strips of triangles long the line
- changed vertical AddLine() to be consistent with AddLineV()
- changed CenterPixelAligned growth to be smoother
- added (temporary) specialized stroke pos support for AddLine()
- added ImDrawFlags_StrokeCenterPixelAligned which center aligns stroke so that outside of the stroke is pixel aligned
- fixed AddRect() non-rounded pixel aligned case to use correnct min/max
- fixed AddRect() default case to not adjust rounding for non-rounded rects
- fixed lineV() centered offset
- renamed ImDrawFlags_StrokeCenterPixelAligned to ImDrawFlags_StrokeCenterAligned.
- reduced debug build indirections.
- added ImFontAtlasFlags_NoBakedRoundCorners which controls if rounded corners should be baked to texture
- added ImDrawListFlags_RoundCornersUseTex which controls if we should try to use textured roudned corners
- fixed how _FringeScaleIsInteger is calculated (we want to detect integer pixel scale)
- fixed how _FringeScale is used with textured rounded corners
- added check to render simpler geometry when (stroked) rectangle has integer coords
- render non.rounded with 4 non-AA rectangles
- added textures for corners of 1-3 thickness and 1-16 rounding
- use textured corners when possible, or fallback to generic one
- removed half pixel offset from ImDrawList::AddLine()
- added ImDrawList::AddHorizontalLine() and ImDrawList::AddVerticalLine() which draw line to the side of the specified line
- Change uses of AddLine() which were obviously vertical and horizontal to use the v and h lines
- Fixed layouting issues from above changes
- Changed primitives demo to use vline and hline
- Fixed angled header to match original
- Fixed separator line to match original
- Fixed caret to match original
- Fix separator vertical alignment
- Added stroke pos, which controls how stroke is draw relative to the shape
- Kept legacy mode which does 1/2px inset
- Added stroke pos support for Rect, Circle, Ngon, and Ellipse
- add stroke pos to hline and vline
- Added drawflag ImDrawFlags_TruncateCoords which allows to hint the renderer that the input is snapped to pixels (can disable AA in some cases)
- Implemented 9-slice renderer for rounded corners
- Remove ImDrawFlags_TruncateCoords flag in favor of detecting truncated coords.
- Renamed to AddLineH(), AddLineV()
- Removed ImDrawStrokePos, folded into ImDrawFlags
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Mikko Mononen
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