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It is only used on pre-nv50 and nvfx is the only Gallium pre-nv50 driver.
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This is the last nvfx unification patch.
nv[34]0_fragtex.c are moved to the common directory
nv[34]0_shader.h are renamed to nv[34]0_vertprog.h and moved to
the common directory
The separate nv30 and nv40 directories are removed from the build
system
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The bulk files cannot be unified, but the frontend can and allows to
share some code and simplify state_emit.c
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They are now almost identical, except for nv30 vs nv40 fragtex
initialization.
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The files have the same structure but are substantially different.
They are unified with appropriate conditionals.
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vertprog.c is similar but has substantial differences:
1. nv40 supports clip planes
2. nv40 uses a more advanced register allocator
3. Some register setup is different
4. Constants with the same name have different values
This patch unifies the two files.
nv30 gains clip plane support and the nv40 register allocator.
A new NVFX_VP(x) macro is introduced that at runtime resolved to
either the nv30 or the nv40 constant value.
nv30 clip planes are not tested and might not work
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state.c is identical except for:
1. Sampler state creation is different
2. nv40 swtnl support
3. Separate blend equations on nv40
This patch unifies nv[34]0_state.c, except the sampler state creation code.
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The files are identical, except for swtnl support which is commented
out on nv30 and restart being initialized on nv30 to avoid a compiler
warning.
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nv30_draw.c is a stub.
This patch makes both nv30 and nv40 use the nv40 swtnl path.
Note that this doesn't actually work on nv30 because the vertex program is
encoded in the nv40-only layout.
However, swtnl was unimplemented before on nv30, so this is not a regression.
Furthermore, a patch to fix this is available near the end of the patchset.
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The files are mostly the same except:
1. On NV40, some TGSI instructions are emulated with several hardware ones
2. Some instructions such as DDX/DDY, and STR were missing from nv30
3. NV40 has more sophisticated register management
nv30 now supports all instructions and uses the nv40 register management.
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The files are significantly different due to:
1. nv30 support 2 render targets, nv40 4
2. z-buffer pitch is set differently
3. nv30 has a limitation of colour_bits >= zeta_bits. This may not
actually exist in the driver though
4. nv30 points color0 at depth in the depth-only case
5. nv30 sets NV34TCL_VIEWPORT_TX_ORIGIN to 0. This is probably
unnecessary
This patch attempts to unify the two files and preserve the existing
behavior.
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The files are identical, except for an extra comment in nv30.
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The files are identical except formatting.
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The only difference between nv30 and nv40 is that nv30 allowed swizzling
for more texture types.
This patch preserves the existing behavior, using conditional code.
Note however that this does not make sense, since all texture types can
be swizzled on nv40 and probably on nv30 too.
However, the handling of swizzled surfaces in the current 2D code is
partially broken, so it's best not to touch this.
A whole rewrite of the 2D code will be submitted, which will solve this
problem.
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The files are identical, except for the fact that the nv40 version
forgets to unreference the stateobj.
Unified to the correct nv30 version.
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The files are the same except for swtnl support on nv40 and for
texture cache flushing on nv40.
Unify them, and use a macro to define 4 versions of render_states,
for all combinations of nvfx and hwtnl/swtnl.
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Will be used to hold source files unified between nv30 and nv40.
Eventually all nv30 and nv40 code will be moved there and the
nv30 and nv40 directories will be removed.
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