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Avoid BLF having to be concerned with decoding the string
(which can fail).
Also remove redundant extra zero byte from strings.
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On Windows "Cmd" is also replaced with "Win".
Differential Revision: https://developer.blender.org/D4689
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Apply clang format as proposed in T53211.
For details on usage and instructions for migrating branches
without conflicts, see:
https://wiki.blender.org/wiki/Tools/ClangFormat
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While \file doesn't need an argument, it can't have another doxy
command after it.
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Move \ingroup onto same line to be more compact and
make it clear the file is in the group.
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BF-admins agree to remove header information that isn't useful,
to reduce noise.
- BEGIN/END license blocks
Developers should add non license comments as separate comment blocks.
No need for separator text.
- Contributors
This is often invalid, outdated or misleading
especially when splitting files.
It's more useful to git-blame to find out who has developed the code.
See P901 for script to perform these edits.
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Part of D4236 by @sobakasu
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Allows users to select a font for text strips in the video sequence editor.
Related: 3610f1fc43d0 Sequencer: refactor clipboard copy to no longer increase user count.
Reviewed by: Brecht
Differential Revision: https://developer.blender.org/D3621
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Now disabling anti-aliasing doesn't impact sequencer, render stamp etc.
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Thanks to @sergey for review
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Remove from blender/nodes, collada, blenfont & render.
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Flush the text cache so that we have proper scissor test and ordering.
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- Undo that changes modes currently asserts,
since undo is now screen data.
Most likely we will change how object mode and workspaces work
since it's not practical/maintainable at the moment.
- Removed view_layer from particle settings
(wasn't needed and complicated undo).
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This adds less than a megabyte of mem usage.
FT_Get_Kerning was the 2nd hotspot when profilling. This commit completly
remove this cost.
One concern though: I don't know if the kerning data is constant for every
sizes but it seems to be the case. I tested different fonts at different
dpi scalling and saw no differences.
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- use x/y/width/height/max as a suffix.
- replace 'num' prefix /w 'len' suffix.
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- batching -> batch_draw.
- ct & size -> len.
- start/end -> begin/end (follow GL convention).
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You can now use BLF_batching_start and BLF_batching_end to batch every
drawcall to BLF together minimizing the overhead introduced by BLF and the
opengl driver.
These calls cannot be nested (for now).
If the modelview matrix changes, previously batched calls are issued and a
the process resume with the new matrix.
However the projection matrix MUST not change and gl scissors as well.
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This is not a perfect win just yet. It's now calling glBufferSubData for
every call (instead of using glMapBufferRange which is almost faster), but
with this system we will be able to batch drawcalls together.
See next commit.
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This means smaller imm buffer usage.
This does not reduce the number of drawcalls.
This uses geometry shader which is slow for the GPU but given we are really
CPU bound on this case, it should not matter.
A perfect implementation would:
- Set the glyph coord in a bufferTexture and just send the glyph ID to the
GPU to read the bufferTexture.
- Use GWN_draw_primitive and draw 2*strllen triangle and just retrieve the
glyph ID and color based on gl_VertexID / 6.
- Stream fixed size buffer that the Driver can discard quickly but this is
the same as improving IMM directly.
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BLF is a low level module, which might (and is) used without Blender.
Thanks Campbell for review!
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It's unlikely to ever be intentional to square the source alpha, as happens
with glBlendFunc, so this changes the blending throughout the code.
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Fix some cases that still assumed there to be a global DPI, instead of a per
window DPI that needs to be set before reading U.dpi.
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Use consistent prefix for gawain API names as well as
some abbreviations to avoid over-long names, see: D2678
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See GPU_matrix.h & gpu_matrix.c for the important changes. Other files are mostly just updated to use the latest API.
- remove unused functions, defines, enums, comments
- remove "3D" from function names
- init to Identity transform (otherwise empty stack)
- gpuMatrixReset lets outside code return to initial state
Part of T49450
Follow up to D2626 and 49fc9cff3b90
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See intern/gawain for the API change. Other files are updated to use the new name. Also updated every call site to the recommended style:
unsigned int foo = VertexFormat_add_attrib(format, "foo", COMP_ ... )
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Take advantage of 2D functions, rotation about the X Y or Z axis, uniform scale factors.
We no longer need to call gpuMatrixBegin_legacy() before using the new API locally in functions.
related to T49450
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Pretty sure source/blender is now finished, with all legacy matrix calls confined to gpu_matrix.c.
This was the easy part, but doing it first makes the next part much easier. TODO and XXX notes describe what is left.
glMatrixMode is still in place, since the new API does not share this concept of modes. Similar for glOrtho and glFrustum which I'll tackle very soon.
Part of T49450
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We had two versions of several BLF functions -- one for a specific font ID & another for the default font.
New BLF_default function lets us simplify this API & delete the redundant code.
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So we don't need two versions of all other BLF functions -- one for specific font ID & another for the default font.
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blenderplayer uses BLF but not Editor UI, so we got a link error for the missing UI_GetThemeColor function.
Moved the new function from BLF to UI.
@Blendify reported problem in IRC
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For anything fancier than regular Theme colors (shading, alpha, etc.) do this:
unsigned char color[4]
UI_GetThemeColor[Fancy]4ubv(... color)
BLF_color4ubv(fontid, color)
That way the BLF color API stays simple.
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Needed a way to pass main font color to BLF without using obsolete glColor. Could not use immUniform since BLF binds its shader internally.
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Make color values compact. Set color once per primitive. Use new immSkipAttrib to avoid useless color copies.
All of this should make text drawing less CPU hungry.
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While trying to simplify text drawing, noticed no Blender code uses the blur feature. Hopefully scripts don't use it!
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Avoids all kinds of setup & preparations to draw nothing.
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First test of matrix API. This will eventually use the 2D part of this API, but the 3D part is ready now.
Part of T49450
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Part of T49043
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Ignore texture matrix in the shader, stop messing with texture matrix in BLF code.
Use linear screen-space interpolation instead of perspective.
Avoid redundant call to glMatrixMode.
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With USE_GLSL enabled, GPU_basic_shader(TEXTURE|COLOR) always rendered black. New shader uses a solid color + alpha channel of texture (which in our case is a font glyph). See fragment shader for details.
I prefer this approah -- multiple shaders that each do one thing well (and are easy to read/write/understand), instead of one shader that can do many things given the right options.
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