Brian Paul wrote:
Rune Petersen wrote:
Tilman Sauerbeck wrote:
Rune Petersen [2006-06-25 16:31]:
I've been looking at vertex shaders this weekend.
It would appear that attribs are broken. The most straight forward
way to test this it to compare progs/tests/arbvptest3 to
progs/tests/vptest3
On my system I get different colors when I resize the window.
Can someone confirm this? (it would explain why Doom 3 is broken)
Yes, I have reported this some weeks ago:
http://marc.theaimsgroup.com/?l=dri-devel&m=114855685402158&w=2
Don't know how I fixed that...
It would appear to be caused bu the reshuffling of the attribs.
Any idea where the attribs are passed to the driver?
and how to read the data in the attribs...
I can't comment on the r300 driver, but the change in vertex aliasing in
core Mesa is pretty simple. It's really just a change of which index
into the VB->Attribs[] array corresponds to glVertexAttribARB(index, ...).
try 2:
I believe I have found the problem... the attributes weren't copied..
Patch attached.
Rune Petersen
Index: radeon_vtxfmt_a.c
===================================================================
RCS file: /cvs/mesa/Mesa/src/mesa/drivers/dri/r300/radeon_vtxfmt_a.c,v
retrieving revision 1.14
diff -u -r1.14 radeon_vtxfmt_a.c
--- radeon_vtxfmt_a.c 12 Jun 2006 22:39:49 -0000 1.14
+++ radeon_vtxfmt_a.c 26 Jun 2006 18:18:06 -0000
@@ -73,6 +73,9 @@
for (i=0; i < ctx->Const.MaxTextureCoordUnits; i++)
CONV_VB(VERT_ATTRIB_TEX0 + i, TexCoordPtr[i]);
+
+ for (i=0; i < 16; i++)
+ CONV_VB(VERT_ATTRIB_GENERIC0 + i,
AttribPtr[VERT_ATTRIB_GENERIC0 + i]);
rvb->Primitive = vb->Primitive;
rvb->PrimitiveCount = vb->PrimitiveCount;
Index: r300_maos.c
===================================================================
RCS file: /cvs/mesa/Mesa/src/mesa/drivers/dri/r300/r300_maos.c,v
retrieving revision 1.33
diff -u -r1.33 r300_maos.c
--- r300_maos.c 12 Jun 2006 22:39:49 -0000 1.33
+++ r300_maos.c 26 Jun 2006 18:18:06 -0000
@@ -368,6 +368,12 @@
rmesa->state.aos[nr++].aos_reg =
prog->inputs[VERT_ATTRIB_TEX0+i];
}
}
+ for (i=0;i<(_TNL_LAST_GENERIC-_TNL_FIRST_GENERIC);i++) {
+ if (InputsRead & (1<<(VERT_ATTRIB_GENERIC0+i))) {
+ RENDERINPUTS_SET( inputs_bitset,
_TNL_ATTRIB_GENERIC(i) );
+ rmesa->state.aos[nr++].aos_reg =
prog->inputs[VERT_ATTRIB_GENERIC0+i];
+ }
+ }
nr = 0;
} else {
RENDERINPUTS_COPY( inputs_bitset,
TNL_CONTEXT(ctx)->render_inputs_bitset );
@@ -457,6 +463,14 @@
r300->state.texture.tc_count++;
}
}
+ for (i = 0; i < (_TNL_LAST_GENERIC-_TNL_FIRST_GENERIC); i++) {
+ if (RENDERINPUTS_TEST( inputs_bitset, _TNL_ATTRIB_GENERIC(i) ))
{
+ CONFIGURE_AOS(i_attrib[i], AOS_FORMAT_FLOAT,
+
VB->AttribPtr[VERT_ATTRIB_GENERIC0+i],
+ immd ? 4 :
VB->AttribPtr[VERT_ATTRIB_GENERIC0+i].size,
+ count);
+ }
+ }
for(i=0; i < nr; i++)
if(r300->state.aos[i].aos_format == 2){
assert(r300->state.aos[i].aos_size == 1);
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