diff options
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c | 55 |
1 files changed, 38 insertions, 17 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c index 8c59119..6839478 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c @@ -973,6 +973,28 @@ lp_build_sample_mipmap(struct lp_build_sample_context *bld, } } + +/** + * Clamp layer coord to valid values. + */ +static LLVMValueRef +lp_build_layer_coord(struct lp_build_sample_context *bld, + unsigned unit, + LLVMValueRef layer) +{ + LLVMValueRef maxlayer; + + layer = lp_build_iround(&bld->coord_bld, layer); + maxlayer = bld->dynamic_state->depth(bld->dynamic_state, + bld->gallivm, unit); + maxlayer = lp_build_sub(&bld->int_bld, maxlayer, bld->int_bld.one); + maxlayer = lp_build_broadcast_scalar(&bld->int_coord_bld, maxlayer); + return lp_build_clamp(&bld->int_coord_bld, layer, + bld->int_coord_bld.zero, maxlayer); + +} + + /** * Calculate cube face, lod, mip levels. */ @@ -1018,23 +1040,11 @@ lp_build_sample_common(struct lp_build_sample_context *bld, face_derivs.ddx_ddy[1] = NULL; derivs = &face_derivs; } - else if (target == PIPE_TEXTURE_1D_ARRAY || - target == PIPE_TEXTURE_2D_ARRAY) { - LLVMValueRef layer, maxlayer; - - if (target == PIPE_TEXTURE_1D_ARRAY) { - layer = *t; - } - else { - layer = *r; - } - layer = lp_build_iround(&bld->coord_bld, layer); - maxlayer = bld->dynamic_state->depth(bld->dynamic_state, - bld->gallivm, unit); - maxlayer = lp_build_sub(&bld->int_bld, maxlayer, bld->int_bld.one); - maxlayer = lp_build_broadcast_scalar(&bld->int_coord_bld, maxlayer); - *r = lp_build_clamp(&bld->int_coord_bld, layer, - bld->int_coord_bld.zero, maxlayer); + else if (target == PIPE_TEXTURE_1D_ARRAY) { + *r = lp_build_layer_coord(bld, unit, *t); + } + else if (target == PIPE_TEXTURE_2D_ARRAY) { + *r = lp_build_layer_coord(bld, unit, *r); } /* @@ -1205,6 +1215,7 @@ lp_build_fetch_texel(struct lp_build_sample_context *bld, struct lp_build_context *perquadi_bld = &bld->perquadi_bld; struct lp_build_context *int_coord_bld = &bld->int_coord_bld; unsigned dims = bld->dims, chan; + unsigned target = bld->static_state->target; LLVMValueRef size, ilevel; LLVMValueRef row_stride_vec = NULL, img_stride_vec = NULL; LLVMValueRef x = coords[0], y = coords[1], z = coords[2]; @@ -1227,6 +1238,16 @@ lp_build_fetch_texel(struct lp_build_sample_context *bld, lp_build_extract_image_sizes(bld, &bld->int_size_bld, int_coord_bld->type, size, &width, &height, &depth); + if (target == PIPE_TEXTURE_1D_ARRAY || + target == PIPE_TEXTURE_2D_ARRAY) { + if (target == PIPE_TEXTURE_1D_ARRAY) { + z = lp_build_layer_coord(bld, unit, y); + } + else { + z = lp_build_layer_coord(bld, unit, z); + } + } + /* This is a lot like border sampling */ if (offsets[0]) { /* XXX coords are really unsigned, offsets are signed */ |