Skip to content
Snippets Groups Projects
ir.c 216.19 KiB
/*
 * Copyright 2023 Conor McCarthy for CodeWeavers
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include "vkd3d_shader_private.h"
#include "vkd3d_types.h"

bool vsir_program_init(struct vsir_program *program, const struct vkd3d_shader_version *version, unsigned int reserve)
{
    program->shader_version = *version;
    return shader_instruction_array_init(&program->instructions, reserve);
}

void vsir_program_cleanup(struct vsir_program *program)
{
    size_t i;

    for (i = 0; i < program->block_name_count; ++i)
        vkd3d_free((void *)program->block_names[i]);
    vkd3d_free(program->block_names);
    shader_instruction_array_destroy(&program->instructions);
    shader_signature_cleanup(&program->input_signature);
    shader_signature_cleanup(&program->output_signature);
    shader_signature_cleanup(&program->patch_constant_signature);
}

static inline bool shader_register_is_phase_instance_id(const struct vkd3d_shader_register *reg)
{
    return reg->type == VKD3DSPR_FORKINSTID || reg->type == VKD3DSPR_JOININSTID;
}

static bool vsir_instruction_is_dcl(const struct vkd3d_shader_instruction *instruction)
{
    enum vkd3d_shader_opcode handler_idx = instruction->handler_idx;
    return (VKD3DSIH_DCL <= handler_idx && handler_idx <= VKD3DSIH_DCL_VERTICES_OUT)
            || handler_idx == VKD3DSIH_HS_DECLS;
}

static void vkd3d_shader_instruction_make_nop(struct vkd3d_shader_instruction *ins)
{
    struct vkd3d_shader_location location = ins->location;

    vsir_instruction_init(ins, &location, VKD3DSIH_NOP);
}

static bool vsir_instruction_init_with_params(struct vsir_program *program,
        struct vkd3d_shader_instruction *ins, const struct vkd3d_shader_location *location,
        enum vkd3d_shader_opcode handler_idx, unsigned int dst_count, unsigned int src_count)
{
    vsir_instruction_init(ins, location, handler_idx);
    ins->dst_count = dst_count;
    ins->src_count = src_count;

    if (!(ins->dst = vsir_program_get_dst_params(program, ins->dst_count)))
    {
        ERR("Failed to allocate %u destination parameters.\n", dst_count);