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Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>
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Tryin' to do some cleanup.
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We can't use the "fstoi" instruction like this.
Unlike other floating point instructions, "fstoi" always rounds
towards zero no matter what rounding mode the FPU has been set to.
This was validated using the following test program:
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static inline int iround(float f)
{
int r;
__asm__ ("fstoi %1, %0" : "=f" (r) : "f" (f));
return r;
}
#define IROUND(x) iround(x)
#define IROUND_REF(f) ((int) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F)))
int main(void)
{
float f = -2.0;
while (f < 3.0f) {
int sparc_val = IROUND(f);
int ref_val = IROUND_REF(f);
if (sparc_val != ref_val)
printf("DIFFERENT[%f]: REF==%d SPARC==%d\n",
f, ref_val, sparc_val);
f += 0.1f;
}
return 0;
}
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which prints out things like:
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DIFFERENT[-1.900000]: REF==-2 SPARC==-1
DIFFERENT[-1.800000]: REF==-2 SPARC==-1
DIFFERENT[-1.700000]: REF==-2 SPARC==-1
DIFFERENT[-1.600000]: REF==-2 SPARC==-1
DIFFERENT[-1.000000]: REF==-1 SPARC==0
DIFFERENT[-0.900000]: REF==-1 SPARC==0
DIFFERENT[-0.800000]: REF==-1 SPARC==0
DIFFERENT[-0.700000]: REF==-1 SPARC==0
DIFFERENT[-0.600000]: REF==-1 SPARC==0
DIFFERENT[0.500000]: REF==1 SPARC==0
DIFFERENT[0.600000]: REF==1 SPARC==0
...
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So we have to remove Sparc's IROUND() definition, it's wrong.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixed point is only used in swrast and sw-based drivers.
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I should just stop using "git stash" altogether.
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Core mesa now unmaps the buffers if needed in these cases.
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Plus add some comments.
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Nothing really of note, unfortunately.
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Match the rest of Gallium.
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Also, ctx->Driver.UnmapBuffer can never be null, so remove conditional.
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If glBufferDataARB() is called while a buffer object is currently mapped
we're supposed to unmap the current buffer, then replace it. Don't generate
an error.
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Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Don't print the meaningless and confusing CONSTANT interpolation
attribute after everything else.
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This is still icky, and only compile-tested.
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Using a tab of inputs should work, but I keep getting bad results.
If only Rawhide's GDB wasn't broken...
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i965 doesn't natively support GL_CLAMP; it treats it like
GL_CLAMP_TO_EDGE, which fails conformance tests.
This fix adds a clause to the check_fallbacks() test to check
whether GL_CLAMP is in use on any enabled 2D texture. If so,
and if strict conformance is required (via INTEL_STRICT_CONFORMANCE),
a software fallback is mandated.
In addition, validate textures *before* checking for fallbacks,
rather than after; otherwise, the texture state is never validated
and can't be trusted. (In particular, if texturing is enabled and
the sampler would access any level beyond level 0 of a texture, the
sampler will segfault, because texture validation sets the firstLevel
and lastLevel fields of a texture object so that the valid levels
will be mapped and accessed correctly. If texture validation doesn't
occur, only level 0 is accessed correctly, and that only because
firstLevel and lastLevel happen to be set to 0.)
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Need to check ctx->DrawBuffer->Visual.stencilBits not ctx->Visual.stencilBits
because the later only applies to the window system buffers, not user-created
FBOs.
This, plus the previous commit, fixes progs/tests/fbotexture.c
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Gallium only supports combined depth/stencil buffers, not separate ones.
If the user tries to create create a FBO with separate depth/stencil
renderbuffers mark the FBO as unsupported.
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(cherry picked from commit 1350f2efba5eeceebe0e711db6152c29e9889ce7)
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Fix a bug reported in 2003 :-)
The output vector has 4 entries, not 3.
Unconditionally emit .register directives.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Stop using register %g7 since that is used by the "system" (ie. the
pthread implementation makes use of it).
Also, the projection vector can be NULL and we shouldn't try to access
it at all in _mesa_sparc_cliptest_points4_np(). ioquake3 would crash
due to this bug.
Finally, unconditionally emit the register directives and re-enable in
_mesa_init_all_sparc_transform_asm().
Signed-off-by: David S. Miller <davem@davemloft.net>
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Also fix minor drm api change
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Need to use '__asm__' instead of plain 'asm'.
math/m_debug_clip.c: In function ‘test_cliptest_function’:
math/m_debug_clip.c:253: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘asm’
math/m_debug_clip.c:253: warning: implicit declaration of function ‘asm’
Signed-off-by: David S. Miller <davem@davemloft.net>
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It doesn't have to do anything. See comments for more details.
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We can't render into any texture format; only certain formats.
Check that render-to-texture's format is renderable in the
intel_validate_framebuffer()
There seems to be a bug somewhere that causes rendering to rgb565 textures
to be corrupted so disallow that for now. This will be revisted.
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