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This was based of the unfinnished code that Keith
Whitwell started on but never finnished. I moved
the code from the glx directory because dri drivers
can be used for more things then just glx.
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drawing/reading
It seems that XGetImage() from a depth 32 TrueColor window is flakey.
Drawing with XPutImage() instead of XPutPixel() seems to work better, but
still not perfectly.
Keep using the original code for now until more is learned.
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Another conditional can be avoided.
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Need to clear the _ReallyEnabled field before possibly continuing the loop.
Also, set _Current pointer to NULL if the unit is no longer enabled.
Fixes piglit lodbias regression
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Fixes piglit copytexsubimage regression.
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For regular GL, we must have vertex positions in order to draw. But ES2
doesn't have that requirement (positions can be computed from any array
of data).
See bug 19911.
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With FBOs one could enable stencil before a stencil buffer is later bound.
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Only true if stenciling is enabled, and there's a stencil buffer.
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Using _EnabledUnits was wrong because it included vertex texture units.
This change plus the prev commit fixes occasional failures of glean/glsl1
vertex texture test failure.
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This field should not include vertex textures. It indicates the coord
inputs for fragment / fixed-function processing.
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Conflicts:
src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
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To prevent blocking when mapping a buffer.
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No real change, as we're not tracking relocations read/write access yet.
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We can avoid a few iterations this way.
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Remove all references to aux buffers 1..3. Keep AUX0 around for now just
in case, but it'll probably go too someday. I don't know of any OpenGL
drivers since the IRIX days that support aux color buffers.
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It's kind of like a CSO todo list. :3
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Just like R300_NO_TCL, when set, forces HW TCL off.
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I'm so happy I could cry.
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Also a possible fix for non-TCL chipsets and trivial/clear.
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s/FRAG_RESULT_DEPR/FRAG_RESULT_DEPTH/
s/FRAG_RESULT_COLR/FRAG_RESULT/COLOR/
Remove FRAG_RESULT_COLH (NV half-precision) output since we never used it.
Next, we might merge the COLOR and DATA outputs (COLOR0, COLOR1, etc).
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This should fix some missing dependency checking.
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This makes debugging with gdb a bit easier.
Ex:
(gdb) p ctx->DrawBuffer.Attachment[BUFFER_STENCIL]
Note however that gdb only seems to recognize enum types that are actually
used to declare a variable somewhere. For example, gl_buffer_index isn't
used to declare any vars so it's invisible to gdb. Work around this by
adding a dummy function in context.c that declares some vars with these
new types.
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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:
--------------------
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;
}
--------------------
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
...
--------------------
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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