Fixes build since wayland 986703ac7365bc87a5501714adb9fc73157c62b7.

Tobias Droste authored Jul 14, 2011 and Benjamin Franzke committed Jul 27, 2011

Signed-off-by: Tobias Droste <tdroste@gmx.de>
Acked-by: Jakob Bornecrantz <wallbraker@gmail.com>
Reviewed-by: Marek Olšák <maraeo@gmail.com>

What a beast.

r300g doesn't depend on files from r300c anymore, so r300c is now left
to its own fate. BTW 'make test' can be invoked from the gallium/r300
directory to run some compiler unit tests.

NOTE: This is a candidate for the 7.10 and 7.11 branches.

NOTE: This is a candidate for the 7.10 and 7.11 branches.

The implementation deviated slightly from the GL_EXT_texture_sRGB spec
and from other implementations.  A giant comment block was added to
justify the somewhat odd behavior of this function.

In addition, the interface had unnecessary cruft.  The 'all' parameter
was false at all callers, so it has been removed.
Reviewed-by: Brian Paul <brianp@vmware.com>

If an application requests a generic compressed format for a texture
and the driver does not pick a specific compressed format, return the
generic base format (e.g., GL_RGBA) for the GL_TEXTURE_INTERNAL_FORMAT
query.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=3165

Reviewed-by: Brian Paul <brianp@vmware.com>

Reviewed-by: Brian Paul <brianp@vmware.com>

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

lower_variable_index_to_cond_assign runs until it can't make any more
progress.  It then returns the result of the last pass which will
always be false.  This caused the lowering loop in
_mesa_ir_link_shader to end before doing one last round of
lower_if_to_cond_assign.  This caused several if-statements (resulting
from lower_variable_index_to_cond_assign) to be left in the IR.

In addition to this change, lower_variable_index_to_cond_assign should
take a flag indicating whether or not it should even generate
if-statements.  This is easily controlled by
switch_generator::linear_sequence_max_length.  This would generate
much better code on architectures without any flow contol.

Fixes i915 piglit regressions glsl-texcoord-array and
glsl-fs-vec4-indexing-temp-src.
Reviewed-by: Eric Anholt <eric@anholt.net>

NOTE: This is a candidate for the 7.11 branch.

Tobias Droste authored Jul 18, 2011 and Marek Olšák committed Jul 25, 2011

Signed-off-by: Tobias Droste <tdroste@gmx.de>
Signed-off-by: Marek Olšák <maraeo@gmail.com>

This drops the get_value query and adds a function query_info, which returns
all the values in one nice structure.

The index buffer state emit only occurred if there was an IB in place
and we were in either a new batch or a new IB state.  But because we
only flagged new IB state if IB state changed from the last IB state
we calculated, we could simply never emit IB state after batchbuffer
wraps if the first draw didn't use the IB and we didn't actually
change the IB.

Fixes piglit glx-multi-context-ib-1.

Improves firefox-talos-gfx around 5%.

Fixes user-clip on 965 with 3D clears enabled.  I created a separate
flag because I wanted to avoid the overhead of the matrix operations
in this path.
Reviewed-by: Brian Paul <brianp@vmware.com>

It turns out that internally the texture cache gets flushed in a
couple of cases, particularly around 2D operations mixed with 3D.  In
almost all cases one of those happens between rendering to an
FBO-attached texture and rendering from that texture.  However, as of
the next patch, glean tfbo (and the new fbo-flushing-2 test) would
manage to get stale texture values because one of those flushes didn't
occur.  The intention of this code was always to get the render cache
cleared and ready to be used from the sampler cache (and it does on <=
gen4), so this just catches gen5 up.

This patch was also tested to fix fbo-flushing on gen7.

When emitting a MAC instruction in a vertex shader, brw_vs_emit()
calls accumulator_contains() to determine whether the accumulator
already contains the appropriate addend; if it does, then we can avoid
emitting an unnecessary MOV instruction.

However, accumulator_contains() wasn't checking the val.negate or
val.abs flags.  As a result, if the desired value was the negation, or
the absolute value, of what was already in the accumulator, we would
generate an incorrect shader.

Fixes piglit test vs-refract-vec4-vec4-float.

Tested on Gen5 and Gen6.
Reviewed-by: Eric Anholt <eric@anholt.net>

On Ivybridge, the shadow comparitor goes in the first slot, rather than
at the end.  It's not necessary to send u, v, and r.

Fixes tests texturing/texdepth and glean/fbo.

NOTE: This is a candidate for the 7.11 branch.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>

Commit 53c89c67

 ("i965: Avoid generating
MOVs for assignments of expressions.") added the line "this->result =
reg_undef" all over the code.  Unfortunately, since Eric developed his
patch before I landed Ivybridge support, he missed adding it to
fs_visitor::emit_texture_gen7() after rebasing.

Furthermore, since I developed TXD support before Eric's patch, I
neglected to add it to the gradient handling when I rebased.

Neglecting to set this causes the visitor to use this->result as storage
rather than generating a new temporary.  These missing statements
resulted in the same register being used to store several different
values.

Fixes the following piglit tests on Ivybridge:
- glsl-fs-shadow2dproj.shader_test
- glsl-fs-shadow2dproj-bias.shader_test

NOTE: This is a candidate for the 7.11 branch.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=39307

Signed-off-by: Christian König <deathsimple@vodafone.de>

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=39276

egl_dri2 built into libEGL depends on libgbm.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=39515

The position of the quad vertex is calculated in calc_position,
so we don't need the output here any more.

Otherwise shaders with skipped inputs/outputs doesn't work correctly.
Signed-off-by: Christian König <deathsimple@vodafone.de>

The blend_quad function clobbers the actual render target color/alpha
values while applying the destination blend factor, which results in
restoring the wrong value during the masking stage for write-disabled
channels.
Reviewed-by: Brian Paul <brianp@vmware.com>

Just like the non-constant array index lowering pass, compare all N
indices at once.  For accesses to a vec4, this saves 3 comparison
instructions on a vector architecture.
Reviewed-by: Eric Anholt <eric@anholt.net>

Reviewed-by: Eric Anholt <eric@anholt.net>

Previously the code would just look at deref->array->type to see if it
was a constant.  This isn't good enough because deref->array might be
another ir_dereference_array... of a constant.  As a result,
deref->array->type wouldn't be a constant, but
deref->variable_referenced() would return NULL.  The unchecked NULL
pointer would shortly lead to a segfault.

Instead just look at the return of deref->variable_referenced().  If
it's NULL, assume that either a constant or some other form of
anonymous temporary storage is being dereferenced.

This is a bit hinkey because most drivers treat constant arrays as
uniforms, but the lowering pass treats them as temporaries.  This
keeps the behavior of the old code, so this change isn't making things
worse.

Fixes i965 piglit:

    vs-temp-array-mat[234]-index-col-rd
    vs-temp-array-mat[234]-index-col-row-rd
    vs-uniform-array-mat[234]-index-col-rd
    vs-uniform-array-mat[234]-index-col-row-rd
Reviewed-by: Eric Anholt <eric@anholt.net>

Fixes i965 piglit vs-varying-array-mat[234]-row-rd.
Reviewed-by: Eric Anholt <eric@anholt.net>

Fixes i965 piglit:

    vs-varying-array-mat[234]-col-row-wr
    vs-varying-array-mat[234]-index-col-row-wr
    vs-varying-array-mat[234]-index-row-wr
    vs-varying-array-mat[234]-row-wr
    vs-varying-mat[234]-col-row-wr
    vs-varying-mat[234]-row-wr
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

Leaving the unused registers with other values caused assertion
failures and other problems in places that blindly iterate over all
sources.

brw_vs_emit.c:1381: get_src_reg: Assertion `c->regs[file][index].nr !=
0' failed.

Fixes i965 piglit:

    vs-uniform-array-mat[234]-col-row-rd
    vs-uniform-array-mat[234]-index-col-row-rd
    vs-uniform-array-mat[234]-index-row-rd
    vs-uniform-mat[234]-col-row-rd
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

Fixes i965 piglit:

    vs-temp-array-mat[234]-col-row-wr
    vs-temp-array-mat[234]-index-col-row-wr
    vs-temp-array-mat[234]-index-row-wr
    vs-temp-mat[234]-col-row-wr

Fixes swrast piglit:

    fs-temp-array-mat[234]-col-row-wr
    fs-temp-array-mat[234]-index-col-row-wr
    fs-temp-array-mat[234]-index-row-wr
    fs-temp-mat[234]-col-row-wr
    vs-temp-array-mat[234]-col-row-wr
    vs-temp-array-mat[234]-index-col-row-wr
    vs-temp-array-mat[234]-index-row-wr
    vs-temp-mat[234]-col-row-wr
Reviewed-by: Eric Anholt <eric@anholt.net>

This fixes many cases of accessing arrays of matrices using
non-constant indices at each level.

Fixes i965 piglit:

    vs-temp-array-mat[234]-index-col-rd
    vs-temp-array-mat[234]-index-col-row-rd
    vs-temp-array-mat[234]-index-col-wr
    vs-uniform-array-mat[234]-index-col-rd

Fixes swrast piglit:

    fs-temp-array-mat[234]-index-col-rd
    fs-temp-array-mat[234]-index-col-row-rd
    fs-temp-array-mat[234]-index-col-wr
    fs-uniform-array-mat[234]-index-col-rd
    fs-uniform-array-mat[234]-index-col-row-rd
    fs-varying-array-mat[234]-index-col-rd
    fs-varying-array-mat[234]-index-col-row-rd
    vs-temp-array-mat[234]-index-col-rd
    vs-temp-array-mat[234]-index-col-row-rd
    vs-temp-array-mat[234]-index-col-wr
    vs-uniform-array-mat[234]-index-col-rd
    vs-uniform-array-mat[234]-index-col-row-rd
    vs-varying-array-mat[234]-index-col-rd
    vs-varying-array-mat[234]-index-col-row-rd
    vs-varying-array-mat[234]-index-col-wr
Reviewed-by: Eric Anholt <eric@anholt.net>