From 163b35e416349c0f079aa6a92eb0bade2cabf5bc Mon Sep 17 00:00:00 2001 From: Abdiel Janulgue Date: Fri, 7 Dec 2012 13:40:35 +0200 Subject: [PATCH] intel: add pixel offset calculator for miptree levels Add helper to calculate fine-grained x and y adjustment pixels to an image within a miptree level for tiled regions. Reviewed-by: Eric Anholt Reviewed-by: Chad Versace Signed-off-by: Abdiel Janulgue --- src/mesa/drivers/dri/intel/intel_mipmap_tree.c | 15 +++++++++++++++ src/mesa/drivers/dri/intel/intel_mipmap_tree.h | 6 ++++++ 2 files changed, 21 insertions(+) diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c index 05f5a4d..31abdad 100644 --- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c @@ -687,6 +687,21 @@ intel_miptree_get_image_offset(struct intel_mipmap_tree *mt, *y = mt->level[level].slice[slice].y_offset; } +void +intel_miptree_get_tile_offsets(struct intel_mipmap_tree *mt, + GLuint level, GLuint slice, + uint32_t *tile_x, + uint32_t *tile_y) +{ + struct intel_region *region = mt->region; + uint32_t mask_x, mask_y; + + intel_region_get_tile_masks(region, &mask_x, &mask_y, false); + + *tile_x = mt->level[level].slice[slice].x_offset & mask_x; + *tile_y = mt->level[level].slice[slice].y_offset & mask_y; +} + static void intel_miptree_copy_slice(struct intel_context *intel, struct intel_mipmap_tree *dst_mt, diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h index a8f27d9..27540bc 100644 --- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h +++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h @@ -467,6 +467,12 @@ void intel_miptree_get_dimensions_for_image(struct gl_texture_image *image, int *width, int *height, int *depth); +void +intel_miptree_get_tile_offsets(struct intel_mipmap_tree *mt, + GLuint level, GLuint slice, + uint32_t *tile_x, + uint32_t *tile_y); + void intel_miptree_set_level_info(struct intel_mipmap_tree *mt, GLuint level, GLuint x, GLuint y, -- 2.7.4