diff options
| author | Eric Anholt <[email protected]> | 2009-12-18 16:57:23 -0800 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2009-12-18 20:35:57 -0800 |
| commit | 6785d6741db987469293d737e9b18f94d189b62e (patch) | |
| tree | 2317f9fe9df39b5bec0e670e3a14a6c6f5cd8c42 /src | |
| parent | b51e0fafdf6a39df1b0d1208595c92d5fa9ceba6 (diff) | |
i915: Fix GL_TEXTURE_MAX_LEVEL support (piglit levelclamp test).
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_texstate.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_texstate.c b/src/mesa/drivers/dri/i915/i915_texstate.c index bcab043e97f..de258484d6c 100644 --- a/src/mesa/drivers/dri/i915/i915_texstate.c +++ b/src/mesa/drivers/dri/i915/i915_texstate.c @@ -138,6 +138,7 @@ i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3) GLuint *state = i915->state.Tex[unit], format, pitch; GLint lodbias, aniso = 0; GLubyte border[4]; + GLfloat maxlod; memset(state, 0, sizeof(state)); @@ -195,10 +196,14 @@ i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3) state[I915_TEXREG_MS3] |= MS3_TILE_WALK; } + /* We get one field with fraction bits to cover the maximum addressable (smallest + * resolution) LOD. Use it to cover both MAX_LEVEL and MAX_LOD. + */ + maxlod = MIN2(tObj->MaxLod, tObj->MaxLevel - tObj->BaseLevel); state[I915_TEXREG_MS4] = ((((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) | + (U_FIXED(CLAMP(maxlod, 0.0, 11.0), 2) << MS4_MAX_LOD_SHIFT) | ((firstImage->Depth - 1) << MS4_VOLUME_DEPTH_SHIFT)); |