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/*
 * Copyright 2017 Józef Kucia 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 "spirv/1.0/spirv.h"
#include "spirv/1.0/GLSL.std.450.h"
#ifdef HAVE_SPIRV_TOOLS
# include "spirv-tools/libspirv.h"
#endif /* HAVE_SPIRV_TOOLS */

#ifdef HAVE_SPIRV_TOOLS

static void vkd3d_spirv_dump(const struct vkd3d_shader_code *spirv)
{
    const static uint32_t options
            = SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES | SPV_BINARY_TO_TEXT_OPTION_INDENT;
    spv_diagnostic diagnostic = NULL;
    spv_text text = NULL;
    spv_context context;
    spv_result_t ret;

    context = spvContextCreate(SPV_ENV_VULKAN_1_0);

    if (!(ret = spvBinaryToText(context, spirv->code, spirv->size / sizeof(uint32_t),
            options, &text, &diagnostic)))
    {
        const char *str, *current = text->str;
        while ((str = strchr(current, '\n')))
        {
            TRACE("%.*s\n", (int)(str - current), current);
            current = str + 1;
        }
    }
    else
    {
        FIXME("Failed to convert SPIR-V binary to text, ret %d.\n", ret);
        FIXME("Diagnostic message: %s.\n", debugstr_a(diagnostic->error));
    }

    spvTextDestroy(text);
    spvDiagnosticDestroy(diagnostic);
    spvContextDestroy(context);
}

static void vkd3d_spirv_validate(const struct vkd3d_shader_code *spirv)
{
    spv_diagnostic diagnostic = NULL;
    spv_context context;
    spv_result_t ret;

    context = spvContextCreate(SPV_ENV_VULKAN_1_0);

    if ((ret = spvValidateBinary(context, spirv->code, spirv->size / sizeof(uint32_t),
            &diagnostic)))
    {
        FIXME("Failed to validate SPIR-V binary, ret %d.\n", ret);
        FIXME("Diagnostic message: %s.\n", debugstr_a(diagnostic->error));
    }

    spvDiagnosticDestroy(diagnostic);
    spvContextDestroy(context);
}

#else

static void vkd3d_spirv_dump(const struct vkd3d_shader_code *spirv) {}
static void vkd3d_spirv_validate(const struct vkd3d_shader_code *spirv) {}

struct vkd3d_spirv_stream
{
    uint32_t *words;
    size_t capacity;
    size_t word_count;
};

static void vkd3d_spirv_stream_init(struct vkd3d_spirv_stream *stream)
{
    stream->capacity = 256;
    if (!(stream->words = vkd3d_calloc(stream->capacity, sizeof(*stream->words))))
        stream->capacity = 0;
    stream->word_count = 0;
}

static void vkd3d_spirv_stream_free(struct vkd3d_spirv_stream *stream)
{
    vkd3d_free(stream->words);
}

static void vkd3d_spirv_stream_clear(struct vkd3d_spirv_stream *stream)
{
    stream->word_count = 0;
}

static bool vkd3d_spirv_stream_append(struct vkd3d_spirv_stream *dst_stream,
        const struct vkd3d_spirv_stream *src_stream)
{
    if (!vkd3d_array_reserve((void **)&dst_stream->words, &dst_stream->capacity,
            dst_stream->word_count + src_stream->word_count, sizeof(*dst_stream->words)))
        return false;

    assert(dst_stream->word_count + src_stream->word_count <= dst_stream->capacity);
    memcpy(&dst_stream->words[dst_stream->word_count], src_stream->words,
            src_stream->word_count * sizeof(*src_stream->words));
    dst_stream->word_count += src_stream->word_count;
    return true;
}

struct vkd3d_spirv_builder
{
    uint64_t capability_mask;
    SpvExecutionModel execution_model;

    uint32_t current_id;
    uint32_t main_function_id;

    struct vkd3d_spirv_stream debug_stream; /* debug instructions */
    struct vkd3d_spirv_stream annotation_stream; /* decoration instructions */
    struct vkd3d_spirv_stream global_stream; /* types, constants, global variables */
    struct vkd3d_spirv_stream function_stream; /* function definitions */

    union
    {
        struct
        {
            uint32_t local_size[3];
        } compute;
    } u;

    /* entry point interface */
    uint32_t *iface;
    size_t iface_capacity;
    size_t iface_element_count;
static uint32_t vkd3d_spirv_alloc_id(struct vkd3d_spirv_builder *builder)
{
    return builder->current_id++;
}

static void vkd3d_spirv_enable_capability(struct vkd3d_spirv_builder *builder,
        SpvCapability cap)
{
    assert(cap < sizeof(builder->capability_mask) * CHAR_BIT);
    builder->capability_mask |= 1ull << cap;
}

static uint32_t vkd3d_spirv_get_glsl_std450_instr_set(struct vkd3d_spirv_builder *builder)
        builder->ext_instr_set_glsl_450 = vkd3d_spirv_alloc_id(builder);
static void vkd3d_spirv_add_iface_variable(struct vkd3d_spirv_builder *builder,
        uint32_t id)
{
    if (!vkd3d_array_reserve((void **)&builder->iface, &builder->iface_capacity,
            builder->iface_element_count + 1, sizeof(*builder->iface)))
        return;

    builder->iface[builder->iface_element_count++] = id;
}

static void vkd3d_spirv_set_execution_model(struct vkd3d_spirv_builder *builder,
        SpvExecutionModel model)
{
    builder->execution_model = model;

    switch (model)
    {
        case SpvExecutionModelVertex:
        case SpvExecutionModelFragment:
        case SpvExecutionModelGLCompute:
            vkd3d_spirv_enable_capability(builder, SpvCapabilityShader);
            break;
        case SpvExecutionModelTessellationControl:
        case SpvExecutionModelTessellationEvaluation:
            vkd3d_spirv_enable_capability(builder, SpvCapabilityTessellation);
            break;
        case SpvExecutionModelGeometry:
            vkd3d_spirv_enable_capability(builder, SpvCapabilityGeometry);
            break;
        default:
            ERR("Unhandled execution model %#x.\n", model);
    }
}

static void vkd3d_spirv_set_local_size(struct vkd3d_spirv_builder *builder,
        unsigned int x, unsigned int y, unsigned int z)
{
    assert(builder->execution_model == SpvExecutionModelGLCompute);

    builder->u.compute.local_size[0] = x;
    builder->u.compute.local_size[1] = y;
    builder->u.compute.local_size[2] = z;
}

static uint32_t vkd3d_spirv_opcode_word(SpvOp op, unsigned int word_count)
{
    assert(!(op & ~SpvOpCodeMask));
    return (word_count << SpvWordCountShift) | op;
}

static void vkd3d_spirv_build_word(struct vkd3d_spirv_stream *stream, uint32_t word)
{
    if (!vkd3d_array_reserve((void **)&stream->words, &stream->capacity,
            stream->word_count + 1, sizeof(*stream->words)))
        return;

    stream->words[stream->word_count++] = word;
}

static unsigned int vkd3d_spirv_string_word_count(const char *str)
{
    return align(strlen(str) + 1, sizeof(uint32_t)) / sizeof(uint32_t);
}

static void vkd3d_spirv_build_string(struct vkd3d_spirv_stream *stream,
        const char *str, unsigned int word_count)
{
    unsigned int word_idx, i;
    const char *ptr = str;

    for (word_idx = 0; word_idx < word_count; ++word_idx)
    {
        uint32_t word = 0;
        for (i = 0; i < sizeof(uint32_t) && *ptr; ++i)
            word |= (uint32_t)*ptr++ << (8 * i);
        vkd3d_spirv_build_word(stream, word);
    }
}

typedef uint32_t (*vkd3d_spirv_build_pfn)(struct vkd3d_spirv_builder *builder);
typedef uint32_t (*vkd3d_spirv_build1_pfn)(struct vkd3d_spirv_builder *builder,
        uint32_t operand0);
typedef uint32_t (*vkd3d_spirv_build2_pfn)(struct vkd3d_spirv_builder *builder,
        uint32_t operand0, uint32_t operand1);

static uint32_t vkd3d_spirv_build_once(struct vkd3d_spirv_builder *builder,
        uint32_t *id, vkd3d_spirv_build_pfn build_pfn)
#define MAX_SPIRV_DECLARATION_PARAMETER_COUNT 2

struct vkd3d_spirv_declaration
{
    struct rb_entry entry;

    SpvOp op;
    unsigned int parameter_count;
    uint32_t parameters[MAX_SPIRV_DECLARATION_PARAMETER_COUNT];
    uint32_t id;
};

static int vkd3d_spirv_declaration_compare(const void *key, const struct rb_entry *e)
{
    const struct vkd3d_spirv_declaration *a = key;
    const struct vkd3d_spirv_declaration *b = RB_ENTRY_VALUE(e, const struct vkd3d_spirv_declaration, entry);

    if (a->op != b->op)
        return a->op - b->op;
    if (a->parameter_count != b->parameter_count)
        return a->parameter_count - b->parameter_count;
    assert(a->parameter_count <= ARRAY_SIZE(a->parameters));
    return memcmp(&a->parameters, &b->parameters, a->parameter_count * sizeof(*a->parameters));
}

static void vkd3d_spirv_declaration_free(struct rb_entry *entry, void *context)
{
    struct vkd3d_spirv_declaration *d = RB_ENTRY_VALUE(entry, struct vkd3d_spirv_declaration, entry);

    vkd3d_free(d);
}

static void vkd3d_spirv_insert_declaration(struct vkd3d_spirv_builder *builder,
        const struct vkd3d_spirv_declaration *declaration)
{
    struct vkd3d_spirv_declaration *d;

    if (!(d = vkd3d_malloc(sizeof(*d))))
        return;
    memcpy(d, declaration, sizeof(*d));
    if (rb_put(&builder->declarations, d, &d->entry) == -1)
    {
        ERR("Failed to insert declaration entry.\n");
        vkd3d_free(d);
    }
}

static uint32_t vkd3d_spirv_build_once1(struct vkd3d_spirv_builder *builder,
        SpvOp op, uint32_t operand0, vkd3d_spirv_build1_pfn build_pfn)
{
    struct vkd3d_spirv_declaration declaration;
    struct rb_entry *entry;

    declaration.op = op;
    declaration.parameter_count = 1;
    declaration.parameters[0] = operand0;

    if ((entry = rb_get(&builder->declarations, &declaration)))
        return RB_ENTRY_VALUE(entry, struct vkd3d_spirv_declaration, entry)->id;

    declaration.id = build_pfn(builder, operand0);
    vkd3d_spirv_insert_declaration(builder, &declaration);
    return declaration.id;
}

static uint32_t vkd3d_spirv_build_once2(struct vkd3d_spirv_builder *builder,
        SpvOp op, uint32_t operand0, uint32_t operand1, vkd3d_spirv_build2_pfn build_pfn)
{
    struct vkd3d_spirv_declaration declaration;
    struct rb_entry *entry;

    declaration.op = op;
    declaration.parameter_count = 2;
    declaration.parameters[0] = operand0;
    declaration.parameters[1] = operand1;

    if ((entry = rb_get(&builder->declarations, &declaration)))
        return RB_ENTRY_VALUE(entry, struct vkd3d_spirv_declaration, entry)->id;

    declaration.id = build_pfn(builder, operand0, operand1);
    vkd3d_spirv_insert_declaration(builder, &declaration);
    return declaration.id;
}

/*
 * vkd3d_spirv_build_op[1-3][v]()
 * vkd3d_spirv_build_op_[t][r][1-3][v]()
 *
 * t   - result type
 * r   - result id
 * 1-3 - the number of operands
 * v   - variable number of operands
 */
static void vkd3d_spirv_build_op(struct vkd3d_spirv_stream *stream, SpvOp op)
{
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(op, 1));
}

static void vkd3d_spirv_build_op1(struct vkd3d_spirv_stream *stream,
        SpvOp op, uint32_t operand)
{
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(op, 2));
    vkd3d_spirv_build_word(stream, operand);
}

static void vkd3d_spirv_build_op1v(struct vkd3d_spirv_stream *stream,
        SpvOp op, uint32_t operand0, const uint32_t *operands, unsigned int operand_count)
{
    unsigned int i;
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(op, 2 + operand_count));
    vkd3d_spirv_build_word(stream, operand0);
    for (i = 0; i < operand_count; ++i)
        vkd3d_spirv_build_word(stream, operands[i]);
}

static void vkd3d_spirv_build_op2v(struct vkd3d_spirv_stream *stream,
        SpvOp op, uint32_t operand0, uint32_t operand1,
        const uint32_t *operands, unsigned int operand_count)
{
    unsigned int i;
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(op, 3 + operand_count));
    vkd3d_spirv_build_word(stream, operand0);
    vkd3d_spirv_build_word(stream, operand1);
    for (i = 0; i < operand_count; ++i)
        vkd3d_spirv_build_word(stream, operands[i]);
}

static void vkd3d_spirv_build_op3v(struct vkd3d_spirv_stream *stream,
        SpvOp op, uint32_t operand0, uint32_t operand1, uint32_t operand2,
        const uint32_t *operands, unsigned int operand_count)
{
    unsigned int i;
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(op, 4 + operand_count));
    vkd3d_spirv_build_word(stream, operand0);
    vkd3d_spirv_build_word(stream, operand1);
    vkd3d_spirv_build_word(stream, operand2);
    for (i = 0; i < operand_count; ++i)
        vkd3d_spirv_build_word(stream, operands[i]);
}

static void vkd3d_spirv_build_op2(struct vkd3d_spirv_stream *stream,
        SpvOp op, uint32_t operand0, uint32_t operand1)
{
    return vkd3d_spirv_build_op2v(stream, op, operand0, operand1, NULL, 0);
}

static void vkd3d_spirv_build_op3(struct vkd3d_spirv_stream *stream,
        SpvOp op, uint32_t operand0, uint32_t operand1, uint32_t operand2)
{
    return vkd3d_spirv_build_op2v(stream, op, operand0, operand1, &operand2, 1);
}

static uint32_t vkd3d_spirv_build_op_rv(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op,
        const uint32_t *operands, unsigned int operand_count)
{
    uint32_t result_id = vkd3d_spirv_alloc_id(builder);
    vkd3d_spirv_build_op1v(stream, op, result_id, operands, operand_count);
    return result_id;
}

static uint32_t vkd3d_spirv_build_op_r(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op)
{
    return vkd3d_spirv_build_op_rv(builder, stream, op, NULL, 0);
}

static uint32_t vkd3d_spirv_build_op_r1(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t operand0)
{
    return vkd3d_spirv_build_op_rv(builder, stream, op, &operand0, 1);
}

static uint32_t vkd3d_spirv_build_op_r2(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t operand0, uint32_t operand1)
{
    uint32_t operands[] = {operand0, operand1};
    return vkd3d_spirv_build_op_rv(builder, stream, op, operands, ARRAY_SIZE(operands));
}

static uint32_t vkd3d_spirv_build_op_r1v(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t operand0,
        const uint32_t *operands, unsigned int operand_count)
{
    uint32_t result_id = vkd3d_spirv_alloc_id(builder);
    vkd3d_spirv_build_op2v(stream, op, result_id, operand0, operands, operand_count);
    return result_id;
}

static uint32_t vkd3d_spirv_build_op_trv(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t result_type,
        const uint32_t *operands, unsigned int operand_count)
{
    uint32_t result_id = vkd3d_spirv_alloc_id(builder);
    vkd3d_spirv_build_op2v(stream, op, result_type, result_id, operands, operand_count);
    return result_id;
}

static uint32_t vkd3d_spirv_build_op_tr(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t result_type)
{
    return vkd3d_spirv_build_op_trv(builder, stream, op, result_type, NULL, 0);
}

static uint32_t vkd3d_spirv_build_op_tr1(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t result_type,
        uint32_t operand0)
{
    return vkd3d_spirv_build_op_trv(builder, stream, op, result_type, &operand0, 1);
}

static uint32_t vkd3d_spirv_build_op_tr2(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t result_type,
        uint32_t operand0, uint32_t operand1)
{
    uint32_t operands[] = {operand0, operand1};
    return vkd3d_spirv_build_op_trv(builder, stream, op, result_type,
            operands, ARRAY_SIZE(operands));
}

static uint32_t vkd3d_spirv_build_op_tr1v(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t result_type,
        uint32_t operand0, const uint32_t *operands, unsigned int operand_count)
{
    uint32_t result_id = vkd3d_spirv_alloc_id(builder);
    vkd3d_spirv_build_op3v(stream, op, result_type, result_id, operand0, operands, operand_count);
    return result_id;
}

static uint32_t vkd3d_spirv_build_op_tr2v(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, SpvOp op, uint32_t result_type,
        uint32_t operand0, uint32_t operand1, const uint32_t *operands, unsigned int operand_count)
{
    uint32_t result_id = vkd3d_spirv_alloc_id(builder);
    unsigned int i;
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(op, 5 + operand_count));
    vkd3d_spirv_build_word(stream, result_type);
    vkd3d_spirv_build_word(stream, result_id);
    vkd3d_spirv_build_word(stream, operand0);
    vkd3d_spirv_build_word(stream, operand1);
    for (i = 0; i < operand_count; ++i)
        vkd3d_spirv_build_word(stream, operands[i]);
    return result_id;
}

static void vkd3d_spirv_build_op_capability(struct vkd3d_spirv_stream *stream,
        SpvCapability cap)
{
    vkd3d_spirv_build_op1(stream, SpvOpCapability, cap);
}

static void vkd3d_spirv_build_op_ext_inst_import(struct vkd3d_spirv_stream *stream,
        uint32_t result_id, const char *name)
{
    unsigned int name_size = vkd3d_spirv_string_word_count(name);
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(SpvOpExtInstImport, 2 + name_size));
    vkd3d_spirv_build_word(stream, result_id);
    vkd3d_spirv_build_string(stream, name, name_size);
}

static uint32_t vkd3d_spirv_build_op_ext_inst(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t inst_set, uint32_t inst_number,
        uint32_t *operands, unsigned int operand_count)
{
    return vkd3d_spirv_build_op_tr2v(builder, &builder->function_stream,
            SpvOpExtInst, result_type, inst_set, inst_number, operands, operand_count);
}

static void vkd3d_spirv_build_op_memory_model(struct vkd3d_spirv_stream *stream,
        SpvAddressingModel addressing_model, SpvMemoryModel memory_model)
{
    vkd3d_spirv_build_op2(stream, SpvOpMemoryModel, addressing_model, memory_model);
}

static void vkd3d_spirv_build_op_entry_point(struct vkd3d_spirv_stream *stream,
        SpvExecutionModel model, uint32_t function_id, const char *name,
        uint32_t *interface_list, unsigned int interface_size)
{
    unsigned int i, name_size = vkd3d_spirv_string_word_count(name);
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(SpvOpEntryPoint, 3 + name_size + interface_size));
    vkd3d_spirv_build_word(stream, model);
    vkd3d_spirv_build_word(stream, function_id);
    vkd3d_spirv_build_string(stream, name, name_size);
    for (i = 0; i < interface_size; ++i)
        vkd3d_spirv_build_word(stream, interface_list[i]);
}

static void vkd3d_spirv_build_op_execution_mode(struct vkd3d_spirv_stream *stream,
        uint32_t entry_point, SpvExecutionMode mode, uint32_t *literals, unsigned int literal_count)
{
    vkd3d_spirv_build_op2v(stream, SpvOpExecutionMode, entry_point, mode, literals, literal_count);
}

static void vkd3d_spirv_build_op_name(struct vkd3d_spirv_builder *builder,
        uint32_t id, const char *fmt, ...)
{
    struct vkd3d_spirv_stream *stream = &builder->debug_stream;
    unsigned int name_size;
    char name[1024];
    va_list args;

    va_start(args, fmt);
    vsnprintf(name, ARRAY_SIZE(name), fmt, args);
    name[ARRAY_SIZE(name) - 1] = '\0';
    va_end(args);

    name_size = vkd3d_spirv_string_word_count(name);
    vkd3d_spirv_build_word(stream, vkd3d_spirv_opcode_word(SpvOpName, 2 + name_size));
    vkd3d_spirv_build_word(stream, id);
    vkd3d_spirv_build_string(stream, name, name_size);
}

static void vkd3d_spirv_build_op_decorate(struct vkd3d_spirv_builder *builder,
        uint32_t target_id, SpvDecoration decoration,
        uint32_t *literals, uint32_t literal_count)
{
    vkd3d_spirv_build_op2v(&builder->annotation_stream,
            SpvOpDecorate, target_id, decoration, literals, literal_count);
}

static void vkd3d_spirv_build_op_decorate1(struct vkd3d_spirv_builder *builder,
        uint32_t target_id, SpvDecoration decoration, uint32_t operand0)
{
    return vkd3d_spirv_build_op_decorate(builder, target_id, decoration, &operand0, 1);
}

static void vkd3d_spirv_build_op_member_decorate(struct vkd3d_spirv_builder *builder,
        uint32_t structure_type_id, uint32_t member_idx, SpvDecoration decoration,
        uint32_t *literals, uint32_t literal_count)
{
    vkd3d_spirv_build_op3v(&builder->annotation_stream, SpvOpMemberDecorate,
            structure_type_id, member_idx, decoration, literals, literal_count);
}

static void vkd3d_spirv_build_op_member_decorate1(struct vkd3d_spirv_builder *builder,
        uint32_t structure_type_id, uint32_t member_idx, SpvDecoration decoration, uint32_t operand0)
{
    vkd3d_spirv_build_op_member_decorate(builder, structure_type_id, member_idx, decoration, &operand0, 1);
}

static uint32_t vkd3d_spirv_build_op_type_void(struct vkd3d_spirv_builder *builder)
{
    return vkd3d_spirv_build_op_r(builder, &builder->global_stream, SpvOpTypeVoid);
}

static uint32_t vkd3d_spirv_get_op_type_void(struct vkd3d_spirv_builder *builder)
{
    return vkd3d_spirv_build_once(builder, &builder->type_void_id, vkd3d_spirv_build_op_type_void);
}

static uint32_t vkd3d_spirv_build_op_type_bool(struct vkd3d_spirv_builder *builder)
{
    return vkd3d_spirv_build_op_r(builder, &builder->global_stream, SpvOpTypeBool);
}

static uint32_t vkd3d_spirv_get_op_type_bool(struct vkd3d_spirv_builder *builder)
{
    return vkd3d_spirv_build_once(builder, &builder->type_bool_id, vkd3d_spirv_build_op_type_bool);
}

static uint32_t vkd3d_spirv_build_op_type_float(struct vkd3d_spirv_builder *builder,
        uint32_t width)
{
    return vkd3d_spirv_build_op_r1(builder, &builder->global_stream, SpvOpTypeFloat, width);
}

static uint32_t vkd3d_spirv_get_op_type_float(struct vkd3d_spirv_builder *builder,
        uint32_t width)
{
    return vkd3d_spirv_build_once1(builder, SpvOpTypeFloat, width, vkd3d_spirv_build_op_type_float);
}

static uint32_t vkd3d_spirv_build_op_type_int(struct vkd3d_spirv_builder *builder,
        uint32_t width, uint32_t signedness)
{
    return vkd3d_spirv_build_op_r2(builder, &builder->global_stream, SpvOpTypeInt, width, signedness);
}

static uint32_t vkd3d_spirv_get_op_type_int(struct vkd3d_spirv_builder *builder,
        uint32_t width, uint32_t signedness)
{
    return vkd3d_spirv_build_once2(builder, SpvOpTypeInt, width, signedness,
            vkd3d_spirv_build_op_type_int);
}

static uint32_t vkd3d_spirv_build_op_type_vector(struct vkd3d_spirv_builder *builder,
        uint32_t component_type, uint32_t component_count)
{
    return vkd3d_spirv_build_op_r2(builder, &builder->global_stream,
            SpvOpTypeVector, component_type, component_count);
}

static uint32_t vkd3d_spirv_get_op_type_vector(struct vkd3d_spirv_builder *builder,
        uint32_t component_type, uint32_t component_count)
{
    return vkd3d_spirv_build_once2(builder, SpvOpTypeVector, component_type, component_count,
            vkd3d_spirv_build_op_type_vector);
}

static uint32_t vkd3d_spirv_build_op_type_array(struct vkd3d_spirv_builder *builder,
        uint32_t element_type, uint32_t length_id)
{
    return vkd3d_spirv_build_op_r2(builder, &builder->global_stream,
            SpvOpTypeArray, element_type, length_id);
}

static uint32_t vkd3d_spirv_build_op_type_struct(struct vkd3d_spirv_builder *builder,
        uint32_t *members, unsigned int member_count)
{
    return vkd3d_spirv_build_op_rv(builder, &builder->global_stream,
            SpvOpTypeStruct, members, member_count);
}

static uint32_t vkd3d_spirv_build_op_type_sampler(struct vkd3d_spirv_builder *builder)
{
    return vkd3d_spirv_build_op_r(builder, &builder->global_stream, SpvOpTypeSampler);
}

static uint32_t vkd3d_spirv_get_op_type_sampler(struct vkd3d_spirv_builder *builder)
{
    return vkd3d_spirv_build_once(builder, &builder->type_sampler_id, vkd3d_spirv_build_op_type_sampler);
}

/* Access qualifiers are not supported. */
static uint32_t vkd3d_spirv_build_op_type_image(struct vkd3d_spirv_builder *builder,
        uint32_t sampled_type_id, SpvDim dim, uint32_t depth, uint32_t arrayed,
        uint32_t ms, uint32_t sampled, SpvImageFormat format)
{
    uint32_t operands[] = {sampled_type_id, dim, depth, arrayed, ms, sampled, format};
    return vkd3d_spirv_build_op_rv(builder, &builder->global_stream,
            SpvOpTypeImage, operands, ARRAY_SIZE(operands));
}

static uint32_t vkd3d_spirv_build_op_type_sampled_image(struct vkd3d_spirv_builder *builder,
        uint32_t image_type_id)
{
    return vkd3d_spirv_build_op_r1(builder, &builder->global_stream,
            SpvOpTypeSampledImage, image_type_id);
}

static uint32_t vkd3d_spirv_get_op_type_sampled_image(struct vkd3d_spirv_builder *builder,
        uint32_t image_type_id)
{
    return vkd3d_spirv_build_once1(builder, SpvOpTypeSampledImage, image_type_id,
            vkd3d_spirv_build_op_type_sampled_image);
}

static uint32_t vkd3d_spirv_build_op_type_function(struct vkd3d_spirv_builder *builder,
        uint32_t return_type, uint32_t *param_types, unsigned int param_count)
{
    return vkd3d_spirv_build_op_r1v(builder, &builder->global_stream,
            SpvOpTypeFunction, return_type, param_types, param_count);
}

static uint32_t vkd3d_spirv_build_op_type_pointer(struct vkd3d_spirv_builder *builder,
        uint32_t storage_class, uint32_t type_id)
{
    return vkd3d_spirv_build_op_r2(builder, &builder->global_stream,
            SpvOpTypePointer, storage_class, type_id);
}

static uint32_t vkd3d_spirv_get_op_type_pointer(struct vkd3d_spirv_builder *builder,
        uint32_t storage_class, uint32_t type_id)
{
    return vkd3d_spirv_build_once2(builder, SpvOpTypePointer, storage_class, type_id,
            vkd3d_spirv_build_op_type_pointer);
}

/* Types larger than 32-bits are not supported. */
static uint32_t vkd3d_spirv_build_op_constant(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, const uint32_t value)
{
    return vkd3d_spirv_build_op_tr1(builder, &builder->global_stream,
            SpvOpConstant, result_type, value);
}

static uint32_t vkd3d_spirv_build_op_constant_composite(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, const uint32_t* constituents, unsigned int constituent_count)
{
    return vkd3d_spirv_build_op_trv(builder, &builder->global_stream,
            SpvOpConstantComposite, result_type, constituents, constituent_count);
}

static uint32_t vkd3d_spirv_build_op_variable(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, uint32_t type_id, uint32_t storage_class, uint32_t initializer)
    return vkd3d_spirv_build_op_tr1v(builder, stream,
            SpvOpVariable, type_id, storage_class, &initializer, !!initializer);
static uint32_t vkd3d_spirv_build_op_function(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t result_id, uint32_t function_control, uint32_t function_type)
    vkd3d_spirv_build_op3v(&builder->function_stream,
            SpvOpFunction, result_type, result_id, function_control, &function_type, 1);
    return result_id;
}

static uint32_t vkd3d_spirv_build_op_function_parameter(struct vkd3d_spirv_builder *builder,
        uint32_t result_type)
{
    return vkd3d_spirv_build_op_tr(builder, &builder->function_stream,
            SpvOpFunctionParameter, result_type);
}

static void vkd3d_spirv_build_op_function_end(struct vkd3d_spirv_builder *builder)
{
    vkd3d_spirv_build_op(&builder->function_stream, SpvOpFunctionEnd);
}

static uint32_t vkd3d_spirv_build_op_function_call(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t function_id, const uint32_t *arguments, unsigned int argument_count)
{
    return vkd3d_spirv_build_op_tr1v(builder, &builder->function_stream,
            SpvOpFunctionCall, result_type, function_id, arguments, argument_count);
}

static uint32_t vkd3d_spirv_build_op_undef(struct vkd3d_spirv_builder *builder,
        struct vkd3d_spirv_stream *stream, uint32_t type_id)
{
    return vkd3d_spirv_build_op_tr(builder, stream, SpvOpUndef, type_id);
}

static uint32_t vkd3d_spirv_build_op_access_chain(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t base_id, uint32_t *indexes, uint32_t index_count)
{
    return vkd3d_spirv_build_op_tr1v(builder, &builder->function_stream,
            SpvOpAccessChain, result_type, base_id, indexes, index_count);
}

static uint32_t vkd3d_spirv_build_op_in_bounds_access_chain(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t base_id, uint32_t *indexes, uint32_t index_count)
{
    return vkd3d_spirv_build_op_tr1v(builder, &builder->function_stream,
            SpvOpInBoundsAccessChain, result_type, base_id, indexes, index_count);
}

static uint32_t vkd3d_spirv_build_op_vector_shuffle(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t vector1_id, uint32_t vector2_id,
        const uint32_t *components, uint32_t component_count)
{
    return vkd3d_spirv_build_op_tr2v(builder, &builder->function_stream, SpvOpVectorShuffle,
            result_type, vector1_id, vector2_id, components, component_count);
}

static uint32_t vkd3d_spirv_build_op_composite_construct(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, const uint32_t *constituents, unsigned int constituent_count)
{
    return vkd3d_spirv_build_op_trv(builder, &builder->function_stream, SpvOpCompositeConstruct,
            result_type, constituents, constituent_count);
}

static uint32_t vkd3d_spirv_build_op_composite_extract(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t composite_id, const uint32_t *indexes, unsigned int index_count)
{
    return vkd3d_spirv_build_op_tr1v(builder, &builder->function_stream, SpvOpCompositeExtract,
            result_type, composite_id, indexes, index_count);
}

static uint32_t vkd3d_spirv_build_op_load(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t pointer_id, uint32_t memory_access)
{
    if (!memory_access)
        return vkd3d_spirv_build_op_tr1(builder, &builder->function_stream, SpvOpLoad,
                result_type, pointer_id);
    else
        return vkd3d_spirv_build_op_tr2(builder, &builder->function_stream, SpvOpLoad,
                result_type, pointer_id, memory_access);
}

static void vkd3d_spirv_build_op_store(struct vkd3d_spirv_builder *builder,
        uint32_t pointer_id, uint32_t object_id, uint32_t memory_access)
{
    if (!memory_access)
        return vkd3d_spirv_build_op2(&builder->function_stream, SpvOpStore,
                pointer_id, object_id);
    else
        return vkd3d_spirv_build_op3(&builder->function_stream, SpvOpStore,
                pointer_id, object_id, memory_access);
}

static uint32_t vkd3d_spirv_build_op_select(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t condition_id, uint32_t object0_id, uint32_t object1_id)
{
    uint32_t operands[] = {condition_id, object0_id, object1_id};
    return vkd3d_spirv_build_op_trv(builder, &builder->function_stream, SpvOpSelect,
            result_type, operands, ARRAY_SIZE(operands));
}

static void vkd3d_spirv_build_op_return(struct vkd3d_spirv_builder *builder)
{
    vkd3d_spirv_build_op(&builder->function_stream, SpvOpReturn);
}

static uint32_t vkd3d_spirv_build_op_label(struct vkd3d_spirv_builder *builder,
        uint32_t label_id)
{
    vkd3d_spirv_build_op1(&builder->function_stream, SpvOpLabel, label_id);
    return label_id;
}

static void vkd3d_spirv_build_op_selection_merge(struct vkd3d_spirv_builder *builder,
        uint32_t merge_block, uint32_t selection_control)
{
    vkd3d_spirv_build_op2(&builder->function_stream, SpvOpSelectionMerge,
            merge_block, selection_control);
}

static void vkd3d_spirv_build_op_branch(struct vkd3d_spirv_builder *builder, uint32_t label)
{
    vkd3d_spirv_build_op1(&builder->function_stream, SpvOpBranch, label);
}

/* Branch weights are not supported. */
static void vkd3d_spirv_build_op_branch_conditional(struct vkd3d_spirv_builder *builder,
        uint32_t condition, uint32_t true_label, uint32_t false_label)
{
    vkd3d_spirv_build_op3(&builder->function_stream, SpvOpBranchConditional,
            condition, true_label, false_label);
}

static uint32_t vkd3d_spirv_build_op_iadd(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t operand0, uint32_t operand1)
{
    return vkd3d_spirv_build_op_tr2(builder, &builder->function_stream,
            SpvOpIAdd, result_type, operand0, operand1);
}

static uint32_t vkd3d_spirv_build_op_isub(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t operand0, uint32_t operand1)
{
    return vkd3d_spirv_build_op_tr2(builder, &builder->function_stream,
            SpvOpISub, result_type, operand0, operand1);
}

static uint32_t vkd3d_spirv_build_op_fnegate(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t operand)
{
    return vkd3d_spirv_build_op_tr1(builder, &builder->function_stream,
            SpvOpFNegate, result_type, operand);
}

static uint32_t vkd3d_spirv_build_op_snegate(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t operand)
{
    return vkd3d_spirv_build_op_tr1(builder, &builder->function_stream,
            SpvOpSNegate, result_type, operand);
}

static uint32_t vkd3d_spirv_build_op_and(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t operand0, uint32_t operand1)
{
    return vkd3d_spirv_build_op_tr2(builder, &builder->function_stream,
            SpvOpBitwiseAnd, result_type, operand0, operand1);
}

static uint32_t vkd3d_spirv_build_op_bitcast(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t operand)
{
    return vkd3d_spirv_build_op_tr1(builder, &builder->function_stream,
            SpvOpBitcast, result_type, operand);
}

static uint32_t vkd3d_spirv_build_op_sampled_image(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t image_id, uint32_t sampler_id)
{
    return vkd3d_spirv_build_op_tr2(builder, &builder->function_stream,
            SpvOpSampledImage, result_type, image_id, sampler_id);
}

static uint32_t vkd3d_spirv_build_op_image_sample_implicit_lod(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t sampled_image_id, uint32_t coordinate_id,
        uint32_t image_operands, const uint32_t *operands, unsigned int operand_count)
{
    unsigned int i = 0, j;
    uint32_t w[10];

    w[i++] = sampled_image_id;
    w[i++] = coordinate_id;
    if (image_operands)
    {
        assert(i + 1 + operand_count <= ARRAY_SIZE(w));
        w[i++] = image_operands;
        for (j = 0; j < operand_count; ++j)
            w[i++] = operands[j];
    }
    return vkd3d_spirv_build_op_trv(builder, &builder->function_stream,
            SpvOpImageSampleImplicitLod, result_type, w, i);
}

static uint32_t vkd3d_spirv_build_op_glsl_std450_fabs(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t operand)
{
    uint32_t glsl_std450_id = vkd3d_spirv_get_glsl_std450_instr_set(builder);
    return vkd3d_spirv_build_op_ext_inst(builder, result_type, glsl_std450_id,
            GLSLstd450FAbs, &operand, 1);
}

static uint32_t vkd3d_spirv_build_op_glsl_std450_nclamp(struct vkd3d_spirv_builder *builder,
        uint32_t result_type, uint32_t x, uint32_t min, uint32_t max)
{
    uint32_t glsl_std450_id = vkd3d_spirv_get_glsl_std450_instr_set(builder);
    uint32_t operands[] = {x, min, max};
    return vkd3d_spirv_build_op_ext_inst(builder, result_type, glsl_std450_id,
            GLSLstd450FClamp, operands, ARRAY_SIZE(operands));
static uint32_t vkd3d_spirv_get_type_id(struct vkd3d_spirv_builder *builder,
        enum vkd3d_component_type component_type, unsigned int component_count)
{
            case VKD3D_TYPE_VOID:
                return vkd3d_spirv_get_op_type_void(builder);
                break;
            case VKD3D_TYPE_FLOAT:
                return vkd3d_spirv_get_op_type_float(builder, 32);
                break;
            case VKD3D_TYPE_INT:
            case VKD3D_TYPE_UINT:
                return vkd3d_spirv_get_op_type_int(builder, 32, component_type == VKD3D_TYPE_INT);
                break;
            case VKD3D_TYPE_BOOL: