configure: bail out if building svga without libdrm

With recent commit we removed the NEED_NONNULL_WINSYS checks when
selecting the hardware (inc svga) winsys. svga has only one winsys
that explicitly requires libdrm (via it's bundled version of
vmwgfx_drm.h) but configure.ac never really checks for it.

Add the check early to prevent people from shooting themselves when
they select the driver but lack libdrm.

$ ./autogen.sh --disable-dri --disable-egl --disable-gallium-llvm
--with-dri-drivers=swrast --with-gallium-drivers=svga,swrast

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82539
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
configure: kill off NEED_NONNULL_WINSYS

The variable was unused and gave false information. The need for nonnull
winsys currently does not relate as it used to. Nowadays one can mix and
match more freely with plenty of winsys' to make your head spin.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
configure: kill off NEED_WINSYS_WRAPPER

Just drop the conditional and simplify our build. This means that
it'll build every time, but it does not require any dependencies nor
does it take that long to compile 200 lines of boilerplate code.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
configure: inform the user when we're building sw/kms-dri

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
configure: enable the gallium loader only when needed

With the gallium megadrivers we've converted most ST to optionally
use either statically linked in or shared pipe-drivers.

The hardcoded switch forgot to conditionally enable the build of the
shared pipe-drivers which resulted in them being constantly build.

Cc: "10.3" <mesa-stable@lists.freedesktop.org>
Cc: James Ausmus <james.ausmus@intel.com>
Reported-by: James Ausmus <james.ausmus@intel.com>
Tested-by: James Ausmus <james.ausmus@intel.com>
Bugzilla: https://code.google.com/p/chromium/issues/detail?id=412089
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
automake: remove obsolete NEED_GALLIUM_LOADER

Superseded by HAVE_LOADER_GALLIUM. The latter has a *DRM* brethren
making the whose easier on which one to keep.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
xmlconfig: suppress libGL warnings when LIBGL_DEBUG == "quiet"

Let's handle LIBGL_DEBUG env. variable in Mesa in a consistent way.

Fixes: https://bugzilla.novell.com/show_bug.cgi?id=895730
Signed-off-by: Stefan Dirsch <sndirsch@suse.de>
Reviewed-by: Courtney Goeltzenleuchter <courtney@lunarg.com>
configure.ac: strip _GNU_SOURCE from llvm-config output

Mesa already defines _GNU_SOURCE for glibc based systems and defining
_GNU_SOURCE will break the Mesa build on other systems such as OpenBSD.

_GNU_SOURCE only seems to be included in llvm-config output when
LLVM is built via autoconf and not when it is built by cmake.

Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
ir_to_mesa: Stop converting uniform booleans.

Excess conversions considered harmful.

Recently Matt reworked the boolean uniform handling to use the value of
UniformBooleanTrue, rather than integer 1, when uploading uniforms:

    mesa: Upload boolean uniforms using UniformBooleanTrue.
    glsl: Use UniformBooleanTrue value for uniform initializers.

Marek then set the default to 1.0f for drivers without native integer
support:

    mesa: set UniformBooleanTrue = 1.0f by default

However, ir_to_mesa was assuming a value of integer 1, and arranging for
it to be converted to 1.0f on upload.  Since Marek's commit, we were
uploading 1.0f = 0x3f800000 which was being interpreted as the integer
value 1065353216 and converted to float as 1.06535322E9, which broke
assumptions in ir_to_mesa that "true" was exactly 1.0f.

+13 Piglits on classic swrast (fs-bool-less-compare-true,
{vs,fs}-op-not-bool-using-if, glsl-1.20/execution/uniform-initializer).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83573
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
tgsi/ureg: add ureg_UARL shortcut
mesa/gallium: API settings / rasterization rules

Signed-off-by: David Heidelberger <david.heidelberger@ixit.cz>
radeon/softpipe/llvmpipe/svga/i915/ilo/freedreno/nv30: use API settings / rasterization rules

v2: compilation fixes by David Heidelberger <david.heidelberger@ixit.cz>
v3: compilation fix by Thermionix <bond711@gmail.com>

Signed-off-by: David Heidelberger <david.heidelberger@ixit.cz>
nvc0: improve code readability

Signed-off-by: David Heidelberger <david.heidelberger@ixit.cz>
nv50/nvc0: use API settings / rasterization rules

Signed-off-by: David Heidelberger <david.heidelberger@ixit.cz>
nvc0: fix incorrect flipping

This change fixes few OpenGL apps.

Signed-off-by: Tiziano Bacocco <tizbac2@gmail.com>
nv50,nvc0: handle TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
nv50,nvc0: handle NULL vertex elements without fallback
nv50/ir/tgsi: implement TGSI_OPCODE_NRM,DP2A

Used by d3d9 st.
hack/nv50: don't emit buffer for skipped vertex elements

Grr, should forbid that and insert dummy elements in nine.
hack/nvc0: avoid fault in get_query_result if there was no begin_query