| /* |
| * Copyright (C) 2017-2018 Rob Clark <robclark@freedesktop.org> |
| * |
| * 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. |
| * |
| * Authors: |
| * Rob Clark <robclark@freedesktop.org> |
| */ |
| |
| #include "ir3_image.h" |
| |
| |
| /* |
| * SSBO/Image to/from IBO/tex hw mapping table: |
| */ |
| |
| void |
| ir3_ibo_mapping_init(struct ir3_ibo_mapping *mapping, unsigned num_textures) |
| { |
| memset(mapping, IBO_INVALID, sizeof(*mapping)); |
| mapping->num_tex = 0; |
| mapping->tex_base = num_textures; |
| } |
| |
| struct ir3_instruction * |
| ir3_ssbo_to_ibo(struct ir3_context *ctx, nir_src src) |
| { |
| if (ir3_bindless_resource(src)) { |
| ctx->so->bindless_ibo = true; |
| return ir3_get_src(ctx, &src)[0]; |
| } else { |
| /* can this be non-const buffer_index? how do we handle that? */ |
| int ssbo_idx = nir_src_as_uint(src); |
| return create_immed(ctx->block, ssbo_idx); |
| } |
| } |
| |
| unsigned |
| ir3_ssbo_to_tex(struct ir3_ibo_mapping *mapping, unsigned ssbo) |
| { |
| if (mapping->ssbo_to_tex[ssbo] == IBO_INVALID) { |
| unsigned tex = mapping->num_tex++; |
| mapping->ssbo_to_tex[ssbo] = tex; |
| mapping->tex_to_image[tex] = IBO_SSBO | ssbo; |
| } |
| return mapping->ssbo_to_tex[ssbo] + mapping->tex_base; |
| } |
| |
| struct ir3_instruction * |
| ir3_image_to_ibo(struct ir3_context *ctx, nir_src src) |
| { |
| if (ir3_bindless_resource(src)) { |
| ctx->so->bindless_ibo = true; |
| return ir3_get_src(ctx, &src)[0]; |
| } else { |
| /* can this be non-const buffer_index? how do we handle that? */ |
| int image_idx = nir_src_as_uint(src); |
| return create_immed(ctx->block, ctx->s->info.num_ssbos + image_idx); |
| } |
| } |
| |
| unsigned |
| ir3_image_to_tex(struct ir3_ibo_mapping *mapping, unsigned image) |
| { |
| if (mapping->image_to_tex[image] == IBO_INVALID) { |
| unsigned tex = mapping->num_tex++; |
| mapping->image_to_tex[image] = tex; |
| mapping->tex_to_image[tex] = image; |
| } |
| return mapping->image_to_tex[image] + mapping->tex_base; |
| } |
| |
| /* see tex_info() for equiv logic for texture instructions.. it would be |
| * nice if this could be better unified.. |
| */ |
| unsigned |
| ir3_get_image_coords(const nir_intrinsic_instr *instr, unsigned *flagsp) |
| { |
| unsigned coords = nir_image_intrinsic_coord_components(instr); |
| unsigned flags = 0; |
| |
| if (coords == 3) |
| flags |= IR3_INSTR_3D; |
| |
| if (nir_intrinsic_image_array(instr)) |
| flags |= IR3_INSTR_A; |
| |
| if (flagsp) |
| *flagsp = flags; |
| |
| return coords; |
| } |
| |
| type_t |
| ir3_get_type_for_image_intrinsic(const nir_intrinsic_instr *instr) |
| { |
| const nir_intrinsic_info *info = &nir_intrinsic_infos[instr->intrinsic]; |
| int bit_size = info->has_dest ? nir_dest_bit_size(instr->dest) : 32; |
| |
| nir_alu_type type = nir_type_uint; |
| switch (instr->intrinsic) { |
| case nir_intrinsic_image_load: |
| case nir_intrinsic_bindless_image_load: |
| case nir_intrinsic_image_store: |
| case nir_intrinsic_bindless_image_store: |
| type = nir_alu_type_get_base_type(nir_intrinsic_type(instr)); |
| break; |
| |
| case nir_intrinsic_image_atomic_add: |
| case nir_intrinsic_bindless_image_atomic_add: |
| case nir_intrinsic_image_atomic_umin: |
| case nir_intrinsic_bindless_image_atomic_umin: |
| case nir_intrinsic_image_atomic_umax: |
| case nir_intrinsic_bindless_image_atomic_umax: |
| case nir_intrinsic_image_atomic_and: |
| case nir_intrinsic_bindless_image_atomic_and: |
| case nir_intrinsic_image_atomic_or: |
| case nir_intrinsic_bindless_image_atomic_or: |
| case nir_intrinsic_image_atomic_xor: |
| case nir_intrinsic_bindless_image_atomic_xor: |
| case nir_intrinsic_image_atomic_exchange: |
| case nir_intrinsic_bindless_image_atomic_exchange: |
| case nir_intrinsic_image_atomic_comp_swap: |
| case nir_intrinsic_bindless_image_atomic_comp_swap: |
| case nir_intrinsic_image_atomic_inc_wrap: |
| case nir_intrinsic_bindless_image_atomic_inc_wrap: |
| type = nir_type_uint; |
| break; |
| |
| case nir_intrinsic_image_atomic_imin: |
| case nir_intrinsic_bindless_image_atomic_imin: |
| case nir_intrinsic_image_atomic_imax: |
| case nir_intrinsic_bindless_image_atomic_imax: |
| type = nir_type_int; |
| break; |
| |
| default: |
| unreachable("Unhandled NIR image intrinsic"); |
| } |
| |
| switch (type) { |
| case nir_type_uint: |
| return bit_size == 16 ? TYPE_U16 : TYPE_U32; |
| case nir_type_int: |
| return bit_size == 16 ? TYPE_S16 : TYPE_S32; |
| case nir_type_float: |
| return bit_size == 16 ? TYPE_F16 : TYPE_F32; |
| default: |
| unreachable("bad type"); |
| } |
| } |
| |
| /* Returns the number of components for the different image formats |
| * supported by the GLES 3.1 spec, plus those added by the |
| * GL_NV_image_formats extension. |
| */ |
| unsigned |
| ir3_get_num_components_for_image_format(enum pipe_format format) |
| { |
| if (format == PIPE_FORMAT_NONE) |
| return 4; |
| else |
| return util_format_get_nr_components(format); |
| } |