Merge branch 'mesa_7_7_branch'

[mesa.git] / src / mesa / drivers / dri / i915 / i915_texstate.c

diff --git a/src/mesa/drivers/dri/i915/i915_texstate.c b/src/mesa/drivers/dri/i915/i915_texstate.c
index 2b03331a004642e16cba1482b956e73749f4fdec..221bf033327ca19a001c139506e22415581ad0f6 100644 (file)
--- a/src/mesa/drivers/dri/i915/i915_texstate.c
+++ b/src/mesa/drivers/dri/i915/i915_texstate.c
@@ -139,6 +139,7 @@ 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));
 
@@ -176,18 +177,9 @@ i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
 
       pitch = intelObj->pitchOverride;
    } else {
-      GLuint dst_x, dst_y;
-
-      intel_miptree_get_image_offset(intelObj->mt, intelObj->firstLevel, 0, 0,
-                                    &dst_x, &dst_y);
-
       dri_bo_reference(intelObj->mt->region->buffer);
       i915->state.tex_buffer[unit] = intelObj->mt->region->buffer;
-      /* XXX: This calculation is probably broken for tiled images with
-       * a non-page-aligned offset.
-       */
-      i915->state.tex_offset[unit] = (dst_x + dst_y * intelObj->mt->pitch) *
-        intelObj->mt->cpp;
+      i915->state.tex_offset[unit] = 0; /* Always the origin of the miptree */
 
       format = translate_texture_format(firstImage->TexFormat,
                                        firstImage->InternalFormat,
@@ -205,10 +197,14 @@ 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));