diff options
Diffstat (limited to 'src/gallium/auxiliary/gallivm/lp_bld_sample.c')
-rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_sample.c | 106 |
1 files changed, 81 insertions, 25 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.c b/src/gallium/auxiliary/gallivm/lp_bld_sample.c index 7a64392d3c..5bc3c263a0 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.c @@ -630,37 +630,21 @@ lp_build_get_level_stride_vec(struct lp_build_sample_context *bld, void lp_build_mipmap_level_sizes(struct lp_build_sample_context *bld, LLVMValueRef ilevel, - LLVMValueRef *out_width_vec, - LLVMValueRef *out_height_vec, - LLVMValueRef *out_depth_vec, + LLVMValueRef *out_size, LLVMValueRef *row_stride_vec, LLVMValueRef *img_stride_vec) { const unsigned dims = bld->dims; LLVMValueRef ilevel_vec; - LLVMValueRef size_vec; - LLVMTypeRef i32t = LLVMInt32Type(); ilevel_vec = lp_build_broadcast_scalar(&bld->int_size_bld, ilevel); /* * Compute width, height, depth at mipmap level 'ilevel' */ - size_vec = lp_build_minify(&bld->int_size_bld, bld->int_size, ilevel_vec); + *out_size = lp_build_minify(&bld->int_size_bld, bld->int_size, ilevel_vec); - *out_width_vec = lp_build_extract_broadcast(bld->builder, - bld->int_size_type, - bld->int_coord_type, - size_vec, - LLVMConstInt(i32t, 0, 0)); if (dims >= 2) { - - *out_height_vec = lp_build_extract_broadcast(bld->builder, - bld->int_size_type, - bld->int_coord_type, - size_vec, - LLVMConstInt(i32t, 1, 0)); - *row_stride_vec = lp_build_get_level_stride_vec(bld, bld->row_stride_array, ilevel); @@ -668,18 +652,90 @@ lp_build_mipmap_level_sizes(struct lp_build_sample_context *bld, *img_stride_vec = lp_build_get_level_stride_vec(bld, bld->img_stride_array, ilevel); - if (dims == 3) { - *out_depth_vec = lp_build_extract_broadcast(bld->builder, - bld->int_size_type, - bld->int_coord_type, - size_vec, - LLVMConstInt(i32t, 2, 0)); - } } } } +/** + * Extract and broadcast texture size. + * + * @param size_type type of the texture size vector (either + * bld->int_size_type or bld->float_size_type) + * @param coord_type type of the texture size vector (either + * bld->int_coord_type or bld->coord_type) + * @param int_size vector with the integer texture size (width, height, + * depth) + */ +void +lp_build_extract_image_sizes(struct lp_build_sample_context *bld, + struct lp_type size_type, + struct lp_type coord_type, + LLVMValueRef size, + LLVMValueRef *out_width, + LLVMValueRef *out_height, + LLVMValueRef *out_depth) +{ + const unsigned dims = bld->dims; + LLVMTypeRef i32t = LLVMInt32Type(); + + *out_width = lp_build_extract_broadcast(bld->builder, + size_type, + coord_type, + size, + LLVMConstInt(i32t, 0, 0)); + if (dims >= 2) { + *out_height = lp_build_extract_broadcast(bld->builder, + size_type, + coord_type, + size, + LLVMConstInt(i32t, 1, 0)); + if (dims == 3) { + *out_depth = lp_build_extract_broadcast(bld->builder, + size_type, + coord_type, + size, + LLVMConstInt(i32t, 2, 0)); + } + } +} + + +/** + * Unnormalize coords. + * + * @param int_size vector with the integer texture size (width, height, depth) + */ +void +lp_build_unnormalized_coords(struct lp_build_sample_context *bld, + LLVMValueRef flt_size, + LLVMValueRef *s, + LLVMValueRef *t, + LLVMValueRef *r) +{ + const unsigned dims = bld->dims; + LLVMValueRef width; + LLVMValueRef height; + LLVMValueRef depth; + + lp_build_extract_image_sizes(bld, + bld->float_size_type, + bld->coord_type, + flt_size, + &width, + &height, + &depth); + + /* s = s * width, t = t * height */ + *s = lp_build_mul(&bld->coord_bld, *s, width); + if (dims >= 2) { + *t = lp_build_mul(&bld->coord_bld, *t, height); + if (dims >= 3) { + *r = lp_build_mul(&bld->coord_bld, *r, depth); + } + } +} + /** Helper used by lp_build_cube_lookup() */ static LLVMValueRef |