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Signed-off-by: Brian Paul <brianp@vmware.com>
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The previous commit introduced extra words, breaking the formatting.
This text transformation was done automatically via the following shell
command:
$ git grep 'THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY' | sed 's/:.*$//' | xargs -I {} sh -c 'vim -e -s {} < vimscript
where 'vimscript' is a file containing:
/THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY/;/\*\// !fmt -w 78 -p ' * '
:wq
Reviewed-by: Brian Paul <brianp@vmware.com>
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This brings the license text in line with the MIT License as published
on the Open Source Initiative website:
http://opensource.org/licenses/mit-license.php
Generated automatically be the following shell command:
$ git grep 'THE AUTHORS BE LIABLE' | sed 's/:.*$//g' | xargs -I '{}' \
sed -i 's/THE AUTHORS/THE AUTHORS OR COPYRIGHT HOLDERS/' {}
This introduces some wrapping issues, to be fixed in the next commit.
Reviewed-by: Brian Paul <brianp@vmware.com>
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Generated automatically be the following shell command:
$ git grep 'BRIAN PAUL BE LIABLE' | sed 's/:.*$//g' | xargs -I '{}' \
sed -i 's/BRIAN PAUL/THE AUTHORS/' {}
The intention here is to protect all authors, not just Brian Paul. I
believe that was already the sensible interpretation, but spelling it
out is probably better.
More practically, it also prevents people from accidentally copy &
pasting the license into a new file which says Brian is not liable when
he isn't even one of the authors.
Reviewed-by: Brian Paul <brianp@vmware.com>
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The 1-bit alpha channel was incorrectly encoded. Previously, any non-zero
alpha value for the ubyte alpha value would set A=1. Instead, use the
most significant bit of the ubyte alpha to determine the A bit. This is
consistent with the other channels and other OpenGL implementations.
Note: This is a candidate for the 7.11 branch.
Reviewed-by: Michel Dänzer <michel@daenzer.net>
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This removes the last remnants of the GLchan datatype and associated
macros out of core Mesa and into swrast.
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Add a comment and reformat to be under 80 columns.
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This introduces an UNCLAMPED_FLOAT_TO_UBYTE x 4 inline function, as
suggested by Brian. It uses it in a few places I noticed from previous
color changes, and also some core mesa places. I haven't updated other places
yet.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This fixes the swrast failures for piglit's fbo-generatemipmap-formats
test (for uncompressed formats). At some point down the road this code
will go away so I haven't checked all the other store_texel() functions.
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Use make_temp_float_image instead of _make_temp_chan_image.
The latter converts the texture to 8 bits/component, losing 2 bits.
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Radeon GPUs can do this. R600 can even do render-to-texture.
Packing and extracting aren't implemented, but we shouldn't hit them (I think).
Tested with swrast, softpipe, and r300g.
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Radeon GPUs do support GL_RGB10_A2.
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The code's cleaner and a step toward supporting float-valued texture sampling.
Some optimizations for common cases can be added and re-enabled...
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Minor updates/fixes to the source documentation.
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Moved CI->RGBA palette lookup into texel fetch function.
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Moved type conversion and interpolation macros into macros.h
Updated all the files that used to include mmath.h
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Core Mesa provides a neutral tnl module that verifies the currently
module before installing the tnl function pointers in a lazy fashion.
It also records which tnl functions have been swapped out, and only
restores these when tnl modules themselves are swapped.
Fallback strategies:
Drivers set a bitmask of dangerous stage changes. When such a state
change occurs, the driver should restore the neutral tnl module via
_mesa_restore_exec_vtxfmt(). The neutral tnl module will call
_mesa_update_state(), followed by ctx->Driver.ValidateTnlModule() if the
validation bitmask matches the new state bitmask. The driver should
call _tnl_wakeup_exec() if it can no longer handle the current state,
which will revert to the default tnl module. In this case, previous
vertices should be replayed as required (depending on the current
primitive) after the new tnl module is installed.
If the driver uses chooser functions for any part of the tnl module,
these should generally be reinstalled as part of the fallback to the
neutral tnl module. For example, if the lighting state changes, a
driver might fall back to the neutral tnl module, verify that the
current lighting state can be handled, and use the chooser function to
pick the most efficient implementation of the current lighting state.
It is up to the drivers to detect and handle fallback cases caused by
tnl function calls themselves (such as glTexCoord4f* if the current tnl
module can't handle projected textures, for example).
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FLOAT_TO_CHAN() macro removed.
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Clean-up of color conversion macros.
New mmath.h macros (IROUND, IFLOOR, ICEIL, FRAC) used in various places.
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driver (enable with FX_ALLOW_VTXFMT=t).
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math: Provides basic matrix and vector functionality that
might be useful to multiple software t&l
implementations, and is used by core mesa to
manage the Model, Project, etc matrices.
tnl: The real transform & lighting code from core mesa,
including everything from glVertex3f through vertex
buffer handling, transformation, clipping, lighting
and handoff to a driver for rasterization.
The interfaces of these can be further tightened up, but the basic
splitting up of state and code move is done.
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Some header file re-org:
Move matrix, vertex buffer structs to types.h to fix #include mess.
Remove typedef, extern declarations from config.h
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Lot's of clean-up in macros.h and mmath.h
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