diff options
| author | Eric Anholt <eric@anholt.net> | 2009-10-29 11:52:28 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-10-29 12:06:04 -0700 |
| commit | f8f40b53a6a4551630e25bfd7f6e12334bb0f3f8 (patch) | |
| tree | 439a6e62c435a4b9594a20ca6d34009f5ffe9895 /src/mesa/drivers/dri/i915/i915_texstate.c | |
| parent | 374447244165b3b79892cb6840a76ea4c2f21f1e (diff) | |
i915: Implement min/max LOD clamping with the hardware.
This gets us expected behavior for clamping between mipmap levels, and
avoids relayout of textures for doing clamping.
Fixes piglit lodclamp-between.
Diffstat (limited to 'src/mesa/drivers/dri/i915/i915_texstate.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_texstate.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_texstate.c b/src/mesa/drivers/dri/i915/i915_texstate.c index 3a20e9c3ab..1397f04a59 100644 --- a/src/mesa/drivers/dri/i915/i915_texstate.c +++ b/src/mesa/drivers/dri/i915/i915_texstate.c @@ -27,6 +27,7 @@ #include "main/mtypes.h" #include "main/enums.h" +#include "main/macros.h" #include "intel_mipmap_tree.h" #include "intel_tex.h" @@ -200,10 +201,10 @@ i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3) } state[I915_TEXREG_MS4] = - ((((pitch / 4) - 1) << MS4_PITCH_SHIFT) | MS4_CUBE_FACE_ENA_MASK | - ((((intelObj->lastLevel - intelObj->firstLevel) * 4)) << - MS4_MAX_LOD_SHIFT) | ((firstImage->Depth - 1) << - MS4_VOLUME_DEPTH_SHIFT)); + ((((pitch / 4) - 1) << MS4_PITCH_SHIFT) | + MS4_CUBE_FACE_ENA_MASK | + (U_FIXED(CLAMP(tObj->MaxLod, 0.0, 11.0), 2) << MS4_MAX_LOD_SHIFT) | + ((firstImage->Depth - 1) << MS4_VOLUME_DEPTH_SHIFT)); { @@ -333,6 +334,9 @@ i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3) (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); state[I915_TEXREG_SS3] |= (unit << SS3_TEXTUREMAP_INDEX_SHIFT); + state[I915_TEXREG_SS3] |= (U_FIXED(CLAMP(tObj->MinLod, 0.0, 11.0), 4) << + SS3_MIN_LOD_SHIFT); + } /* convert border color from float to ubyte */ |