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authorBen Skeggs <[email protected]>2008-02-13 19:33:41 +1100
committerBen Skeggs <[email protected]>2008-02-13 19:33:41 +1100
commit263de4b814eb78cc971ad28f173985b61b77465c (patch)
tree0f7f9033f8b2b2572dfdf21d0264aefef79a9de7 /src
parent6be095ae15d411c82f7417c98a87867dbdf1947b (diff)
nv40: attempt at obeying sampler min_lod/max_lod/lod_bias
Diffstat (limited to 'src')
-rw-r--r--src/mesa/pipe/nv40/nv40_context.c2
-rw-r--r--src/mesa/pipe/nv40/nv40_fragtex.c5
-rw-r--r--src/mesa/pipe/nv40/nv40_state.c14
3 files changed, 17 insertions, 4 deletions
diff --git a/src/mesa/pipe/nv40/nv40_context.c b/src/mesa/pipe/nv40/nv40_context.c
index 4343d493cc5..a6e5f332e63 100644
--- a/src/mesa/pipe/nv40/nv40_context.c
+++ b/src/mesa/pipe/nv40/nv40_context.c
@@ -74,7 +74,7 @@ nv40_get_paramf(struct pipe_context *pipe, int param)
case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
return 16.0;
case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
- return 4.0;
+ return 16.0;
case PIPE_CAP_BITMAP_TEXCOORD_BIAS:
return 0.0;
default:
diff --git a/src/mesa/pipe/nv40/nv40_fragtex.c b/src/mesa/pipe/nv40/nv40_fragtex.c
index 69c0fcb5e05..5af5fbe7465 100644
--- a/src/mesa/pipe/nv40/nv40_fragtex.c
+++ b/src/mesa/pipe/nv40/nv40_fragtex.c
@@ -108,10 +108,9 @@ nv40_fragtex_build(struct nv40_context *nv40, int unit)
so_reloc (so, nv40mt->buffer, txf, tex_flags | NOUVEAU_BO_OR,
NV40TCL_TEX_FORMAT_DMA0, NV40TCL_TEX_FORMAT_DMA1);
so_data (so, ps->wrap);
- so_data (so, NV40TCL_TEX_ENABLE_ENABLE | ps->en |
- (0x00078000) /* mipmap related? */);
+ so_data (so, NV40TCL_TEX_ENABLE_ENABLE | ps->en);
so_data (so, txs);
- so_data (so, ps->filt | 0x3fd6 /*voodoo*/);
+ so_data (so, ps->filt | 0x2000 /*voodoo*/);
so_data (so, (pt->width[0] << NV40TCL_TEX_SIZE0_W_SHIFT) |
pt->height[0]);
so_data (so, ps->bcol);
diff --git a/src/mesa/pipe/nv40/nv40_state.c b/src/mesa/pipe/nv40/nv40_state.c
index 80e94737efb..bcd244528d5 100644
--- a/src/mesa/pipe/nv40/nv40_state.c
+++ b/src/mesa/pipe/nv40/nv40_state.c
@@ -193,6 +193,20 @@ nv40_sampler_state_create(struct pipe_context *pipe,
ps->filt = filter;
+ {
+ float limit;
+
+ limit = CLAMP(cso->lod_bias, -16.0, 15.0);
+ ps->filt |= (int)(cso->lod_bias * 256.0) & 0x1fff;
+
+ limit = CLAMP(cso->max_lod, 0.0, 15.0);
+ ps->en |= (int)(limit * 256.0) << 7;
+
+ limit = CLAMP(cso->min_lod, 0.0, 15.0);
+ ps->en |= (int)(limit * 256.0) << 19;
+ }
+
+
if (cso->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
switch (cso->compare_func) {
case PIPE_FUNC_NEVER: