#include "etnaviv_context.h"
#include "etnaviv_debug.h"
#include "etnaviv_disasm.h"
+#include "etnaviv_nir.h"
#include "etnaviv_uniforms.h"
#include "etnaviv_util.h"
bool error;
};
-/* io related lowering
- * run after lower_int_to_float because it adds i2f/f2i ops
- */
-static void
-etna_lower_io(nir_shader *shader, struct etna_shader_variant *v)
-{
- nir_foreach_function(function, shader) {
- nir_builder b;
- nir_builder_init(&b, function->impl);
-
- nir_foreach_block(block, function->impl) {
- nir_foreach_instr_safe(instr, block) {
- if (instr->type == nir_instr_type_intrinsic) {
- nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
-
- switch (intr->intrinsic) {
- case nir_intrinsic_load_front_face: {
- /* HW front_face is 0.0/1.0, not 0/~0u for bool
- * lower with a comparison with 0
- */
- intr->dest.ssa.bit_size = 32;
-
- b.cursor = nir_after_instr(instr);
-
- nir_ssa_def *ssa = nir_ine(&b, &intr->dest.ssa, nir_imm_int(&b, 0));
- if (v->key.front_ccw)
- nir_instr_as_alu(ssa->parent_instr)->op = nir_op_ieq;
-
- nir_ssa_def_rewrite_uses_after(&intr->dest.ssa,
- nir_src_for_ssa(ssa),
- ssa->parent_instr);
- } break;
- case nir_intrinsic_store_deref: {
- nir_deref_instr *deref = nir_src_as_deref(intr->src[0]);
- if (shader->info.stage != MESA_SHADER_FRAGMENT || !v->key.frag_rb_swap)
- break;
-
- assert(deref->deref_type == nir_deref_type_var);
-
- if (deref->var->data.location != FRAG_RESULT_COLOR &&
- deref->var->data.location != FRAG_RESULT_DATA0)
- break;
-
- b.cursor = nir_before_instr(instr);
-
- nir_ssa_def *ssa = nir_mov(&b, intr->src[1].ssa);
- nir_alu_instr *alu = nir_instr_as_alu(ssa->parent_instr);
- alu->src[0].swizzle[0] = 2;
- alu->src[0].swizzle[2] = 0;
- nir_instr_rewrite_src(instr, &intr->src[1], nir_src_for_ssa(ssa));
- } break;
- case nir_intrinsic_load_uniform: {
- /* convert indirect load_uniform to load_ubo when possible
- * this is required on HALTI5+ because address register is not implemented
- * address register loads also arent done optimally
- */
- if (v->shader->specs->halti < 2 || nir_src_is_const(intr->src[0]))
- break;
-
- nir_intrinsic_instr *load_ubo =
- nir_intrinsic_instr_create(b.shader, nir_intrinsic_load_ubo);
- load_ubo->num_components = intr->num_components;
- nir_ssa_dest_init(&load_ubo->instr, &load_ubo->dest,
- load_ubo->num_components, 32, NULL);
-
- b.cursor = nir_before_instr(instr);
- load_ubo->src[0] = nir_src_for_ssa(nir_imm_int(&b, 0));
- load_ubo->src[1] = nir_src_for_ssa(nir_iadd(&b,
- nir_imul(&b, intr->src[0].ssa, nir_imm_int(&b, 16)),
- nir_imm_int(&b, nir_intrinsic_base(intr) * 16)));
- nir_builder_instr_insert(&b, &load_ubo->instr);
- nir_ssa_def_rewrite_uses(&intr->dest.ssa,
- nir_src_for_ssa(&load_ubo->dest.ssa));
- nir_instr_remove(&intr->instr);
- } break;
- case nir_intrinsic_load_ubo: {
- nir_const_value *idx = nir_src_as_const_value(intr->src[0]);
- assert(idx);
- /* offset index by 1, index 0 is used for converted load_uniform */
- b.cursor = nir_before_instr(instr);
- nir_instr_rewrite_src(instr, &intr->src[0],
- nir_src_for_ssa(nir_imm_int(&b, idx[0].u32 + 1)));
- } break;
- case nir_intrinsic_load_vertex_id:
- case nir_intrinsic_load_instance_id:
- /* detect use of vertex_id/instance_id */
- v->vs_id_in_reg = v->infile.num_reg;
- break;
- default:
- break;
- }
- }
-
- if (instr->type != nir_instr_type_tex)
- continue;
-
- nir_tex_instr *tex = nir_instr_as_tex(instr);
- nir_src *coord = NULL;
- nir_src *lod_bias = NULL;
- unsigned lod_bias_idx;
-
- assert(tex->sampler_index == tex->texture_index);
-
- for (unsigned i = 0; i < tex->num_srcs; i++) {
- switch (tex->src[i].src_type) {
- case nir_tex_src_coord:
- coord = &tex->src[i].src;
- break;
- case nir_tex_src_bias:
- case nir_tex_src_lod:
- assert(!lod_bias);
- lod_bias = &tex->src[i].src;
- lod_bias_idx = i;
- break;
- case nir_tex_src_comparator:
- break;
- default:
- assert(0);
- break;
- }
- }
-
- if (tex->sampler_dim == GLSL_SAMPLER_DIM_RECT) {
- /* use a dummy load_uniform here to represent texcoord scale */
- b.cursor = nir_before_instr(instr);
- nir_intrinsic_instr *load =
- nir_intrinsic_instr_create(b.shader, nir_intrinsic_load_uniform);
- nir_intrinsic_set_base(load, ~tex->sampler_index);
- load->num_components = 2;
- load->src[0] = nir_src_for_ssa(nir_imm_float(&b, 0.0f));
- nir_ssa_dest_init(&load->instr, &load->dest, 2, 32, NULL);
- nir_intrinsic_set_type(load, nir_type_float);
-
- nir_builder_instr_insert(&b, &load->instr);
-
- nir_ssa_def *new_coord = nir_fmul(&b, coord->ssa, &load->dest.ssa);
- nir_instr_rewrite_src(&tex->instr, coord, nir_src_for_ssa(new_coord));
- }
-
- /* pre HALTI5 needs texture sources in a single source */
-
- if (!lod_bias || v->shader->specs->halti >= 5)
- continue;
-
- assert(coord && lod_bias && tex->coord_components < 4);
-
- nir_alu_instr *vec = nir_alu_instr_create(shader, nir_op_vec4);
- for (unsigned i = 0; i < tex->coord_components; i++) {
- vec->src[i].src = nir_src_for_ssa(coord->ssa);
- vec->src[i].swizzle[0] = i;
- }
- for (unsigned i = tex->coord_components; i < 4; i++)
- vec->src[i].src = nir_src_for_ssa(lod_bias->ssa);
-
- vec->dest.write_mask = 0xf;
- nir_ssa_dest_init(&vec->instr, &vec->dest.dest, 4, 32, NULL);
-
- nir_tex_instr_remove_src(tex, lod_bias_idx);
- nir_instr_rewrite_src(&tex->instr, coord, nir_src_for_ssa(&vec->dest.dest.ssa));
- tex->coord_components = 4;
-
- nir_instr_insert_before(&tex->instr, &vec->instr);
- }
- }
- }
-}
+
static bool
etna_alu_to_scalar_filter_cb(const nir_instr *instr, const void *data)
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