summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorAlex Deucher <[email protected]>2009-09-19 14:46:06 -0400
committerAlex Deucher <[email protected]>2009-09-24 10:02:08 -0400
commit095db818c6c7ed5706b5f31d17d0cb19c03cb67a (patch)
tree241281807bda06415f6b4a754de5b5162869a218
parentec14d59afa952b4e53ad268971098584686a6fca (diff)
r600: fix polygon offset
-rw-r--r--src/mesa/drivers/dri/r600/r700_state.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c
index 2a0b4192562..d8190efe473 100644
--- a/src/mesa/drivers/dri/r600/r700_state.c
+++ b/src/mesa/drivers/dri/r600/r700_state.c
@@ -1122,20 +1122,25 @@ static void r700PolygonOffset(GLcontext * ctx, GLfloat factor, GLfloat units) //
context_t *context = R700_CONTEXT(ctx);
R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
GLfloat constant = units;
+ GLchar depth = 0;
+
+ R600_STATECHANGE(context, poly);
switch (ctx->Visual.depthBits) {
case 16:
constant *= 4.0;
+ depth = -16;
break;
case 24:
constant *= 2.0;
+ depth = -24;
break;
}
factor *= 12.0;
-
- R600_STATECHANGE(context, poly);
-
+ SETfield(r700->PA_SU_POLY_OFFSET_DB_FMT_CNTL.u32All, depth,
+ POLY_OFFSET_NEG_NUM_DB_BITS_shift, POLY_OFFSET_NEG_NUM_DB_BITS_mask);
+ //r700->PA_SU_POLY_OFFSET_CLAMP.f32All = constant; //???
r700->PA_SU_POLY_OFFSET_FRONT_SCALE.f32All = factor;
r700->PA_SU_POLY_OFFSET_FRONT_OFFSET.f32All = constant;
r700->PA_SU_POLY_OFFSET_BACK_SCALE.f32All = factor;