mesa: Branch 'master'
Jerome Glisse
glisse at kemper.freedesktop.org
Sun Jan 14 18:32:37 UTC 2007
src/mesa/drivers/dri/r300/r300_vertexprog.c | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
New commits:
diff-tree 9a4e49aef2abb277544138640c2b71169badaa42 (from 6dd967e74ff4cb03220d5785bd583203464d299d)
Author: Jerome Glisse <glisse at freedesktop.org>
Date: Sun Jan 14 19:31:30 2007 +0100
r300: Fix vertex program position invariant bug, force position reading.
When we have a position invariant program we need to force routing the
position otherwise you may handle transform quite random data which might
be funny but unlikely what you want :).
diff --git a/src/mesa/drivers/dri/r300/r300_vertexprog.c b/src/mesa/drivers/dri/r300/r300_vertexprog.c
index 2492a4a..c08c987 100644
--- a/src/mesa/drivers/dri/r300/r300_vertexprog.c
+++ b/src/mesa/drivers/dri/r300/r300_vertexprog.c
@@ -1072,6 +1072,8 @@ static void insert_wpos(struct r300_vert
vpi = &prog->Instructions[prog->NumInstructions-1];
assert(vpi->Opcode == OPCODE_END);
+ /* we need position, don't we ? :) */
+ prog->InputsRead |= (1 << VERT_ATTRIB_POS);
}
static void pos_as_texcoord(struct r300_vertex_program *vp,
@@ -1101,8 +1103,9 @@ static struct r300_vertex_program *build
vp->wpos_idx = wpos_idx;
- if(mesa_vp->IsPositionInvariant)
+ if(mesa_vp->IsPositionInvariant) {
position_invariant(&mesa_vp->Base);
+ }
if(wpos_idx > -1)
pos_as_texcoord(vp, &mesa_vp->Base);
@@ -1158,6 +1161,10 @@ void r300_select_vertex_shader(r300Conte
wanted_key.OutputsWritten |= 1 << (VERT_RESULT_TEX0 + i);
wanted_key.InputsRead = vpc->mesa_program.Base.InputsRead;
+ if(vpc->mesa_program.IsPositionInvariant) {
+ /* we wan't position don't we ? */
+ wanted_key.InputsRead |= (1 << VERT_ATTRIB_POS);
+ }
for (vp = vpc->progs; vp; vp = vp->next)
if (_mesa_memcmp(&vp->key, &wanted_key, sizeof(wanted_key)) == 0) {
@@ -1170,6 +1177,5 @@ void r300_select_vertex_shader(r300Conte
vp = build_program(&wanted_key, &vpc->mesa_program, wpos_idx);
vp->next = vpc->progs;
vpc->progs = vp;
-
r300->selected_vp = vp;
}
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