[Mesa-dev] [PATCH] swr: report a reasonable max lod bias

[Rowley, Timothy O]

Reviewed-by: Tim Rowley <timothy.o.rowley at intel.com<mailto:timothy.o.rowley at intel.com>>

On Nov 19, 2016, at 10:11 AM, Ilia Mirkin <imirkin at alum.mit.edu<mailto:imirkin at alum.mit.edu>> wrote:

This is the same value that llvmpipe uses. Since swr uses the same
sampler logic, makes sense for this value to also be the same. Most
applications don't care.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu<mailto:imirkin at alum.mit.edu>>
---

I kind of assume this is dependent on my layout patches since LODs weren't
always properly handled before.

src/gallium/drivers/swr/swr_screen.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/swr/swr_screen.cpp b/src/gallium/drivers/swr/swr_screen.cpp
index 36afcc3..9affa02 100644
--- a/src/gallium/drivers/swr/swr_screen.cpp
+++ b/src/gallium/drivers/swr/swr_screen.cpp
@@ -406,7 +406,7 @@ swr_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
   case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
      return 0.0;
   case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
-      return 0.0;
+      return 16.0; /* arbitrary */
   case PIPE_CAPF_GUARD_BAND_LEFT:
   case PIPE_CAPF_GUARD_BAND_TOP:
   case PIPE_CAPF_GUARD_BAND_RIGHT:
--
2.7.3


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