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i915: added to-do note about setting the max_lod register to get proper min/mag filter selection

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Brian 2008-03-21 10:03:23 -06:00
parent 74525d474c
commit b70a6babfb
1 changed files with 6 additions and 0 deletions
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6
src/gallium/drivers/i915simple/i915_state_sampler.c
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@ -206,6 +206,12 @@ i915_update_texture(struct i915_context *i915, uint unit,
| format | format
| MS3_USE_FENCE_REGS); | MS3_USE_FENCE_REGS);
/*
* XXX sampler->max_lod should be used to program the MAX_LOD field below.
* Also, when min_filter != mag_filter and there's just one mipmap level,
* set max_lod = 1 to make sure i915 chooses between min/mag filtering.
*/
/* MS4 state */ /* MS4 state */
state[1] = state[1] =
((((pitch / 4) - 1) << MS4_PITCH_SHIFT) ((((pitch / 4) - 1) << MS4_PITCH_SHIFT)