diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_mipmap_tree.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_mipmap_tree.c | 81 |
1 files changed, 51 insertions, 30 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c index 3517939066..6610771b6e 100644 --- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c @@ -78,44 +78,19 @@ intel_miptree_create(struct intel_context *intel, mt->cpp = compress_byte ? compress_byte : cpp; mt->compressed = compress_byte ? 1 : 0; mt->refcount = 1; + mt->pitch = 0; #ifdef I915 if (IS_945(intel->intelScreen->deviceID)) - ok = i945_miptree_layout(mt); + ok = i945_miptree_layout(intel, mt); else - ok = i915_miptree_layout(mt); + ok = i915_miptree_layout(intel, mt); #else - ok = brw_miptree_layout(mt); + ok = brw_miptree_layout(intel, mt); #endif if (ok) { -#ifdef I915 - if (!mt->compressed) { - int align; - - if (intel->ttm) { - /* XXX: Align pitch to multiple of 64 bytes for now to allow - * render-to-texture to work in all cases. This should probably be - * replaced at some point by some scheme to only do this when really - * necessary. - */ - align = 63; - } else { - align = 3; - } - - mt->pitch = (mt->pitch * cpp + align) & ~align; - - /* XXX: At least the i915 seems very upset when the pitch is a multiple - * of 1024 and sometimes 512 bytes - performance can drop by several - * times. Go to the next multiple of the required alignment for now. - */ - if (!(mt->pitch & 511)) - mt->pitch += align + 1; - - mt->pitch /= cpp; - } -#endif /* I915 */ + assert (mt->pitch); mt->region = intel_region_alloc(intel, mt->cpp, mt->pitch, mt->total_height); @@ -129,6 +104,52 @@ intel_miptree_create(struct intel_context *intel, return mt; } +/** + * intel_miptree_pitch_align: + * + * @intel: intel context pointer + * + * @mt: the miptree to compute pitch alignment for + * + * @pitch: the natural pitch value + * + * Given @pitch, compute a larger value which accounts for + * any necessary alignment required by the device + */ + +int intel_miptree_pitch_align (struct intel_context *intel, + struct intel_mipmap_tree *mt, + int pitch) +{ + if (!mt->compressed) { + int pitch_align; + + if (intel->ttm) { + /* XXX: Align pitch to multiple of 64 bytes for now to allow + * render-to-texture to work in all cases. This should probably be + * replaced at some point by some scheme to only do this when really + * necessary. + */ + pitch_align = 64; + } else { + pitch_align = 4; + } + + pitch = ALIGN(pitch * mt->cpp, pitch_align); + +#ifdef I915 + /* XXX: At least the i915 seems very upset when the pitch is a multiple + * of 1024 and sometimes 512 bytes - performance can drop by several + * times. Go to the next multiple of the required alignment for now. + */ + if (!(pitch & 511)) + pitch += pitch_align; +#endif + + pitch /= mt->cpp; + } + return pitch; +} void intel_miptree_reference(struct intel_mipmap_tree **dst, |