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Fixes crash when GL_BASE_LEVEL!=0.
Also, remove old assertion.
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This reverts commit 6dcfddb8e2ec2bfb6187b912807fa65f28da2c5e.
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Build a buffer of contigous vertices and indices at the backend of our
software transformation/clipping path. This will become the mechanism
for emitting buffers of vertices to rasterization hardware.
This is similar to but not the same as the post-transform vertex cache.
In particular, these vertices are subject to clipping, culling, poly offset,
etc. The vertices emitted will all be used by hardware.
TODOs include the actual transformation to hardware vertex formats, moving
this out of softpipe to somewhere more useful and allowing >1 primitive to
share the generated VB.
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Still need to produce decl instructions for vertex shaders...
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Remove/disable the attrib/slot mapping arrays in a few places.
Work in progress...
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state constant state object semantics.
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Allow driver custom allocation within cached objects. The shaders
are currently twiced (by cso layer and by the program itself).
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TGSI_ATTRIB_x tokens still present and used in a few places.
Expanded set of TGSI_SEMANTIC_x tokens for describing the meaning
of inputs/outputs. These tokens are in a crude state ATM.
Lots of #if 0 / disabled code to be removed yet, etc...
Softpipe and i915 drivers should be in working condition but not heavily tested.
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cso already allocated the template for us. Returning 0 means
we have no driver specific representation and just want
the template on the bind.
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Basically make cso hold the driver specific struct, while
managing the template.
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Drivers can now create whatever they want from the state template. We
use cso_state object to store the template (necessary during lookups),
and the driver data. Convert blend state to the new semantics.
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Create/Delete calls should be split since in create we'll be
compiling them so we want to know which one it is (vertex/fragment).
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This is a step toward removing TGSI_ATTRIB_ tokens.
Basically, when translating Mesa programs to TGSI programs, pass in input and
output register re-maps, plus interpolation info.
There's some known breakage (cubemap.c) so more to be done...
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In mesa_to_tgsi.c, use TGSI_INTERPOLATE_PERSPECTIVE by default (to match
post-transform vertex info convention). More to be done there...
In sp_quad_fs.c, interpolate W in addition to Z. This fixes the divide
by zero happening in perspective_interpolation() tgsi_exec.c
As it was, we were only getting perspective correction of texture coords
used by the TGSI_TEX instruction since it does a homogeneous divide.
Other coords/varyings were incorrect.
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state
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Converting depth and stencil objects into a single state object
(d3d10 like) and making it immutable.
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The const is there to enforce the immutable state of the object,
which is in reality owned by the pipe so just cast away the
constness.
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Switch the sample to be an immutable state object.
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We want our state objects to be immutable, handled via the
create/bind/delete calls instead of struct propagation.
Only implementing the blend state to see how it would look like
and work.
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This is already handled by the semanics of map(), etc.
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This replaces the temporary occlusion counter functions we had before.
Added new ctx->Driver.WaitQuery() function which should block until the result is ready.
Sketch out some code for vertex transformation feedback counters.
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A few functions which were basically duplicated between softpipe and the
i915 driver are now re-used:
draw_emit_vertex_attr()
draw_compute_vertex_size()
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Added a new draw_set_twoside_attributes() function for specifying which
vertex attributes are to be copied/replaced when a polygon is back-facing.
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to cpy.
One less dependency on the TGSI_ATTRIB_x flags.
This requires setting the vertex_info->interp_mode[] values in the i915 driver and passing them to draw_set_vertex_attributes().
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The code is all in place, but mostly disabled for now:
In t_vp_build.c, write the VERT_RESULT_PSIZE register
In sp_state_derived.c, need to emit vertex point size if drawing points.
In setup_point() use the point size from the vertex.
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