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-rw-r--r--src/glsl/nir/nir_lower_samplers.cpp248
1 files changed, 0 insertions, 248 deletions
diff --git a/src/glsl/nir/nir_lower_samplers.cpp b/src/glsl/nir/nir_lower_samplers.cpp
deleted file mode 100644
index 438caacfd4d..00000000000
--- a/src/glsl/nir/nir_lower_samplers.cpp
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Copyright (C) 2005-2007 Brian Paul All Rights Reserved.
- * Copyright (C) 2008 VMware, Inc. All Rights Reserved.
- * Copyright © 2014 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 "nir.h"
-#include "../program.h"
-#include "program/hash_table.h"
-#include "ir_uniform.h"
-
-extern "C" {
-#include "main/compiler.h"
-#include "main/mtypes.h"
-#include "program/prog_parameter.h"
-#include "program/program.h"
-}
-
-static void
-add_indirect_to_tex(nir_tex_instr *instr, nir_src indirect)
-{
- /* First, we have to resize the array of texture sources */
- nir_tex_src *new_srcs = rzalloc_array(instr, nir_tex_src,
- instr->num_srcs + 1);
-
- for (unsigned i = 0; i < instr->num_srcs; i++) {
- new_srcs[i].src_type = instr->src[i].src_type;
- nir_instr_move_src(&instr->instr, &new_srcs[i].src, &instr->src[i].src);
- }
-
- ralloc_free(instr->src);
- instr->src = new_srcs;
-
- /* Now we can go ahead and move the source over to being a
- * first-class texture source.
- */
- instr->src[instr->num_srcs].src_type = nir_tex_src_sampler_offset;
- instr->num_srcs++;
- nir_instr_rewrite_src(&instr->instr, &instr->src[instr->num_srcs - 1].src,
- indirect);
-}
-
-static unsigned
-get_sampler_index(const struct gl_shader_program *shader_program,
- gl_shader_stage stage, const char *name)
-{
- unsigned location;
- if (!shader_program->UniformHash->get(location, name)) {
- assert(!"failed to find sampler");
- return 0;
- }
-
- if (!shader_program->UniformStorage[location].sampler[stage].active) {
- assert(!"cannot return a sampler");
- return 0;
- }
-
- return shader_program->UniformStorage[location].sampler[stage].index;
-}
-
-static void
-lower_sampler(nir_tex_instr *instr, const struct gl_shader_program *shader_program,
- gl_shader_stage stage, void *mem_ctx)
-{
- if (instr->sampler == NULL)
- return;
-
- /* Get the name and the offset */
- instr->sampler_index = 0;
- char *name = ralloc_strdup(mem_ctx, instr->sampler->var->name);
-
- for (nir_deref *deref = &instr->sampler->deref;
- deref->child; deref = deref->child) {
- switch (deref->child->deref_type) {
- case nir_deref_type_array: {
- nir_deref_array *deref_array = nir_deref_as_array(deref->child);
-
- assert(deref_array->deref_array_type != nir_deref_array_type_wildcard);
-
- if (deref_array->deref.child) {
- ralloc_asprintf_append(&name, "[%u]",
- deref_array->deref_array_type == nir_deref_array_type_direct ?
- deref_array->base_offset : 0);
- } else {
- assert(deref->child->type->base_type == GLSL_TYPE_SAMPLER);
- instr->sampler_index = deref_array->base_offset;
- }
-
- /* XXX: We're assuming here that the indirect is the last array
- * thing we have. This should be ok for now as we don't support
- * arrays_of_arrays yet.
- */
- if (deref_array->deref_array_type == nir_deref_array_type_indirect) {
- /* First, we have to resize the array of texture sources */
- nir_tex_src *new_srcs = rzalloc_array(instr, nir_tex_src,
- instr->num_srcs + 1);
-
- for (unsigned i = 0; i < instr->num_srcs; i++) {
- new_srcs[i].src_type = instr->src[i].src_type;
- nir_instr_move_src(&instr->instr, &new_srcs[i].src,
- &instr->src[i].src);
- }
-
- ralloc_free(instr->src);
- instr->src = new_srcs;
-
- /* Now we can go ahead and move the source over to being a
- * first-class texture source.
- */
- instr->src[instr->num_srcs].src_type = nir_tex_src_sampler_offset;
- instr->num_srcs++;
- nir_instr_move_src(&instr->instr,
- &instr->src[instr->num_srcs - 1].src,
- &deref_array->indirect);
-
- instr->sampler_array_size = glsl_get_length(deref->type);
- }
- break;
- }
-
- case nir_deref_type_struct: {
- nir_deref_struct *deref_struct = nir_deref_as_struct(deref->child);
- const char *field = glsl_get_struct_elem_name(deref->type,
- deref_struct->index);
- ralloc_asprintf_append(&name, ".%s", field);
- break;
- }
-
- default:
- unreachable("Invalid deref type");
- break;
- }
- }
-
- instr->sampler_index += get_sampler_index(shader_program, stage, name);
-
- instr->sampler = NULL;
-}
-
-typedef struct {
- void *mem_ctx;
- const struct gl_shader_program *shader_program;
- gl_shader_stage stage;
-} lower_state;
-
-static bool
-lower_block_cb(nir_block *block, void *_state)
-{
- lower_state *state = (lower_state *) _state;
-
- nir_foreach_instr(block, instr) {
- if (instr->type == nir_instr_type_tex) {
- nir_tex_instr *tex_instr = nir_instr_as_tex(instr);
- lower_sampler(tex_instr, state->shader_program, state->stage,
- state->mem_ctx);
- }
- }
-
- return true;
-}
-
-static void
-lower_impl(nir_function_impl *impl, const struct gl_shader_program *shader_program,
- gl_shader_stage stage)
-{
- lower_state state;
-
- state.mem_ctx = ralloc_parent(impl);
- state.shader_program = shader_program;
- state.stage = stage;
-
- nir_foreach_block(impl, lower_block_cb, &state);
-}
-
-extern "C" void
-nir_lower_samplers(nir_shader *shader,
- const struct gl_shader_program *shader_program)
-{
- nir_foreach_overload(shader, overload) {
- if (overload->impl)
- lower_impl(overload->impl, shader_program, shader->stage);
- }
-}
-
-static bool
-lower_samplers_for_vk_block(nir_block *block, void *data)
-{
- nir_foreach_instr(block, instr) {
- if (instr->type != nir_instr_type_tex)
- continue;
-
- nir_tex_instr *tex = nir_instr_as_tex(instr);
-
- assert(tex->sampler);
-
- tex->sampler_set = tex->sampler->var->data.descriptor_set;
- tex->sampler_index = tex->sampler->var->data.binding;
-
- if (tex->sampler->deref.child) {
- assert(tex->sampler->deref.child->deref_type == nir_deref_type_array);
- nir_deref_array *arr = nir_deref_as_array(tex->sampler->deref.child);
-
- /* Only one-level arrays are allowed in vulkan */
- assert(arr->deref.child == NULL);
-
- tex->sampler_index += arr->base_offset;
- if (arr->deref_array_type == nir_deref_array_type_indirect) {
- add_indirect_to_tex(tex, arr->indirect);
- nir_instr_rewrite_src(instr, &arr->indirect, NIR_SRC_INIT);
-
- tex->sampler_array_size = glsl_get_length(tex->sampler->deref.type);
- }
- }
-
- tex->sampler = NULL;
- }
-
- return true;
-}
-
-extern "C" void
-nir_lower_samplers_for_vk(nir_shader *shader)
-{
- nir_foreach_overload(shader, overload) {
- if (overload->impl) {
- nir_foreach_block(overload->impl, lower_samplers_for_vk_block, NULL);
- }
- }
-}
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