| /* |
| * Copyright © 2020 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #include "compiler/nir/nir_builder.h" |
| #include "brw_nir.h" |
| |
| /** |
| * GEN:BUG:1806565034: |
| * |
| * Gen12+ allows to set RENDER_SURFACE_STATE::SurfaceArray to 1 only if |
| * array_len > 1. Setting RENDER_SURFACE_STATE::SurfaceArray to 0 results in |
| * the HW RESINFO message to report an array size of 0 which breaks texture |
| * array size queries. |
| * |
| * This NIR pass works around this by patching the array size with a |
| * MAX(array_size, 1) for array textures. |
| */ |
| |
| bool |
| brw_nir_clamp_image_1d_2d_array_sizes(nir_shader *shader) |
| { |
| bool progress = false; |
| nir_builder b; |
| |
| nir_foreach_function(func, shader) { |
| bool function_progress = false; |
| |
| if (!func->impl) |
| continue; |
| |
| nir_builder_init(&b, func->impl); |
| |
| nir_foreach_block(block, func->impl) { |
| nir_foreach_instr_safe(instr, block) { |
| nir_ssa_def *image_size = NULL; |
| |
| switch (instr->type) { |
| case nir_instr_type_intrinsic: { |
| nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr); |
| |
| switch (intr->intrinsic) { |
| case nir_intrinsic_image_size: |
| case nir_intrinsic_bindless_image_size: |
| if (!nir_intrinsic_image_array(intr)) |
| break; |
| |
| image_size = &intr->dest.ssa; |
| break; |
| |
| case nir_intrinsic_image_deref_size: { |
| nir_deref_instr *deref = nir_src_as_deref(intr->src[0]); |
| |
| assert(glsl_type_is_image(deref->type)); |
| |
| if (!glsl_sampler_type_is_array(deref->type)) |
| break; |
| |
| image_size = &intr->dest.ssa; |
| break; |
| } |
| |
| default: |
| break; |
| } |
| break; |
| } |
| |
| case nir_instr_type_tex: { |
| nir_tex_instr *tex_instr = nir_instr_as_tex(instr); |
| if (tex_instr->op != nir_texop_txs) |
| break; |
| |
| if (!tex_instr->is_array) |
| break; |
| |
| image_size = &tex_instr->dest.ssa; |
| break; |
| } |
| |
| default: |
| break; |
| } |
| |
| if (!image_size) |
| continue; |
| |
| b.cursor = nir_after_instr(instr); |
| |
| nir_ssa_def *components[4]; |
| for (int i = 0; i < image_size->num_components; i++) { |
| if (i == (image_size->num_components - 1)) { |
| components[i] = nir_imax(&b, nir_channel(&b, image_size, i), |
| nir_imm_int(&b, 1)); |
| } else { |
| components[i] = nir_channel(&b, image_size, i); |
| } |
| } |
| nir_ssa_def *image_size_replacement = |
| nir_vec(&b, components, image_size->num_components); |
| |
| b.cursor = nir_after_instr(instr); |
| |
| nir_ssa_def_rewrite_uses_after(image_size, |
| nir_src_for_ssa(image_size_replacement), |
| image_size_replacement->parent_instr); |
| |
| function_progress = true; |
| } |
| } |
| |
| if (function_progress) { |
| nir_metadata_preserve(func->impl, nir_metadata_block_index | |
| nir_metadata_dominance); |
| progress = function_progress; |
| } else { |
| nir_metadata_preserve(func->impl, nir_metadata_all); |
| } |
| } |
| |
| return progress; |
| } |