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vkd3d/libs/vkd3d-shader/hlsl_sm4.c
Zebediah Figura 32fd18837b vkd3d-shader/hlsl: Write SM4 swizzle instructions. 
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2021-08-27 21:20:13 +02:00

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/*
* HLSL code generation for DXBC shader models 4-5
*
* Copyright 2019-2020 Zebediah Figura 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 "hlsl.h"
#include <stdio.h>
#include "vkd3d_d3dcommon.h"
#include "sm4.h"
bool hlsl_sm4_register_from_semantic(struct hlsl_ctx *ctx, const struct hlsl_semantic *semantic,
bool output, enum vkd3d_sm4_register_type *type, bool *has_idx)
{
unsigned int i;
static const struct
{
const char *semantic;
bool output;
enum vkd3d_shader_type shader_type;
enum vkd3d_sm4_register_type type;
bool has_idx;
}
register_table[] =
{
{"sv_primitiveid", false, VKD3D_SHADER_TYPE_GEOMETRY, VKD3D_SM4_RT_PRIMID, false},
/* Put sv_target in this table, instead of letting it fall through to
* default varying allocation, so that the register index matches the
* usage index. */
{"color", true, VKD3D_SHADER_TYPE_PIXEL, VKD3D_SM4_RT_OUTPUT, true},
{"depth", true, VKD3D_SHADER_TYPE_PIXEL, VKD3D_SM4_RT_DEPTHOUT, false},
{"sv_depth", true, VKD3D_SHADER_TYPE_PIXEL, VKD3D_SM4_RT_DEPTHOUT, false},
{"sv_target", true, VKD3D_SHADER_TYPE_PIXEL, VKD3D_SM4_RT_OUTPUT, true},
};
for (i = 0; i < ARRAY_SIZE(register_table); ++i)
{
if (!ascii_strcasecmp(semantic->name, register_table[i].semantic)
&& output == register_table[i].output
&& ctx->profile->type == register_table[i].shader_type)
{
*type = register_table[i].type;
*has_idx = register_table[i].has_idx;
return true;
}
}
return false;
}
bool hlsl_sm4_usage_from_semantic(struct hlsl_ctx *ctx, const struct hlsl_semantic *semantic,
bool output, D3D_NAME *usage)
{
unsigned int i;
static const struct
{
const char *name;
bool output;
enum vkd3d_shader_type shader_type;
D3DDECLUSAGE usage;
}
semantics[] =
{
{"position", false, VKD3D_SHADER_TYPE_GEOMETRY, D3D_NAME_POSITION},
{"sv_position", false, VKD3D_SHADER_TYPE_GEOMETRY, D3D_NAME_POSITION},
{"sv_primitiveid", false, VKD3D_SHADER_TYPE_GEOMETRY, D3D_NAME_PRIMITIVE_ID},
{"position", true, VKD3D_SHADER_TYPE_GEOMETRY, D3D_NAME_POSITION},
{"sv_position", true, VKD3D_SHADER_TYPE_GEOMETRY, D3D_NAME_POSITION},
{"sv_primitiveid", true, VKD3D_SHADER_TYPE_GEOMETRY, D3D_NAME_PRIMITIVE_ID},
{"position", false, VKD3D_SHADER_TYPE_PIXEL, D3D_NAME_POSITION},
{"sv_position", false, VKD3D_SHADER_TYPE_PIXEL, D3D_NAME_POSITION},
{"color", true, VKD3D_SHADER_TYPE_PIXEL, D3D_NAME_TARGET},
{"depth", true, VKD3D_SHADER_TYPE_PIXEL, D3D_NAME_DEPTH},
{"sv_target", true, VKD3D_SHADER_TYPE_PIXEL, D3D_NAME_TARGET},
{"sv_depth", true, VKD3D_SHADER_TYPE_PIXEL, D3D_NAME_DEPTH},
{"sv_position", false, VKD3D_SHADER_TYPE_VERTEX, D3D_NAME_UNDEFINED},
{"position", true, VKD3D_SHADER_TYPE_VERTEX, D3D_NAME_POSITION},
{"sv_position", true, VKD3D_SHADER_TYPE_VERTEX, D3D_NAME_POSITION},
};
for (i = 0; i < ARRAY_SIZE(semantics); ++i)
{
if (!ascii_strcasecmp(semantic->name, semantics[i].name)
&& output == semantics[i].output
&& ctx->profile->type == semantics[i].shader_type
&& !ascii_strncasecmp(semantic->name, "sv_", 3))
{
*usage = semantics[i].usage;
return true;
}
}
if (!ascii_strncasecmp(semantic->name, "sv_", 3))
return false;
*usage = D3D_NAME_UNDEFINED;
return true;
}
static void write_sm4_signature(struct hlsl_ctx *ctx, struct dxbc_writer *dxbc, bool output)
{
struct vkd3d_bytecode_buffer buffer = {0};
struct vkd3d_string_buffer *string;
const struct hlsl_ir_var *var;
size_t count_position;
unsigned int i;
bool ret;
count_position = put_u32(&buffer, 0);
put_u32(&buffer, 8); /* unknown */
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
{
unsigned int width = (1u << var->data_type->dimx) - 1, use_mask;
enum vkd3d_sm4_register_type type;
uint32_t usage_idx, reg_idx;
D3D_NAME usage;
bool has_idx;
if ((output && !var->is_output_semantic) || (!output && !var->is_input_semantic))
continue;
ret = hlsl_sm4_usage_from_semantic(ctx, &var->semantic, output, &usage);
assert(ret);
usage_idx = var->semantic.index;
if (hlsl_sm4_register_from_semantic(ctx, &var->semantic, output, &type, &has_idx))
{
reg_idx = has_idx ? var->semantic.index : ~0u;
}
else
{
assert(var->reg.allocated);
type = VKD3D_SM4_RT_INPUT;
reg_idx = var->reg.id;
}
use_mask = width; /* FIXME: accurately report use mask */
if (output)
use_mask = 0xf ^ use_mask;
/* Special pixel shader semantics (TARGET, DEPTH, COVERAGE). */
if (usage >= 64)
usage = 0;
put_u32(&buffer, 0); /* name */
put_u32(&buffer, usage_idx);
put_u32(&buffer, usage);
switch (var->data_type->base_type)
{
case HLSL_TYPE_FLOAT:
case HLSL_TYPE_HALF:
put_u32(&buffer, D3D_REGISTER_COMPONENT_FLOAT32);
break;
case HLSL_TYPE_INT:
put_u32(&buffer, D3D_REGISTER_COMPONENT_SINT32);
break;
case HLSL_TYPE_BOOL:
case HLSL_TYPE_UINT:
put_u32(&buffer, D3D_REGISTER_COMPONENT_UINT32);
break;
default:
if ((string = hlsl_type_to_string(ctx, var->data_type)))
hlsl_error(ctx, var->loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE,
"Invalid data type %s for semantic variable %s.", string->buffer, var->name);
hlsl_release_string_buffer(ctx, string);
put_u32(&buffer, D3D_REGISTER_COMPONENT_UNKNOWN);
}
put_u32(&buffer, reg_idx);
put_u32(&buffer, vkd3d_make_u16(width, use_mask));
}
i = 0;
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
{
const char *semantic = var->semantic.name;
size_t string_offset;
D3D_NAME usage;
if ((output && !var->is_output_semantic) || (!output && !var->is_input_semantic))
continue;
hlsl_sm4_usage_from_semantic(ctx, &var->semantic, output, &usage);
if (usage == D3D_NAME_TARGET && !ascii_strcasecmp(semantic, "color"))
string_offset = put_string(&buffer, "SV_Target");
else if (usage == D3D_NAME_DEPTH && !ascii_strcasecmp(semantic, "depth"))
string_offset = put_string(&buffer, "SV_Depth");
else if (usage == D3D_NAME_POSITION && !ascii_strcasecmp(semantic, "position"))
string_offset = put_string(&buffer, "SV_Position");
else
string_offset = put_string(&buffer, semantic);
set_u32(&buffer, (2 + i++ * 6) * sizeof(uint32_t), string_offset);
}
set_u32(&buffer, count_position, i);
dxbc_writer_add_section(dxbc, output ? TAG_OSGN : TAG_ISGN, buffer.data, buffer.size);
}
static const struct hlsl_type *get_array_type(const struct hlsl_type *type)
{
if (type->type == HLSL_CLASS_ARRAY)
return get_array_type(type->e.array.type);
return type;
}
static unsigned int get_array_size(const struct hlsl_type *type)
{
if (type->type == HLSL_CLASS_ARRAY)
return get_array_size(type->e.array.type) * type->e.array.elements_count;
return 1;
}
static D3D_SHADER_VARIABLE_CLASS sm4_class(const struct hlsl_type *type)
{
switch (type->type)
{
case HLSL_CLASS_ARRAY:
return sm4_class(type->e.array.type);
case HLSL_CLASS_MATRIX:
assert(type->modifiers & HLSL_MODIFIERS_MAJORITY_MASK);
if (type->modifiers & HLSL_MODIFIER_COLUMN_MAJOR)
return D3D_SVC_MATRIX_COLUMNS;
else
return D3D_SVC_MATRIX_ROWS;
case HLSL_CLASS_OBJECT:
return D3D_SVC_OBJECT;
case HLSL_CLASS_SCALAR:
return D3D_SVC_SCALAR;
case HLSL_CLASS_STRUCT:
return D3D_SVC_STRUCT;
case HLSL_CLASS_VECTOR:
return D3D_SVC_VECTOR;
default:
ERR("Invalid class %#x.\n", type->type);
assert(0);
return 0;
}
}
static D3D_SHADER_VARIABLE_TYPE sm4_base_type(const struct hlsl_type *type)
{
switch (type->base_type)
{
case HLSL_TYPE_BOOL:
return D3D_SVT_BOOL;
case HLSL_TYPE_FLOAT:
case HLSL_TYPE_HALF:
return D3D_SVT_FLOAT;
case HLSL_TYPE_INT:
return D3D_SVT_INT;
case HLSL_TYPE_PIXELSHADER:
return D3D_SVT_PIXELSHADER;
case HLSL_TYPE_SAMPLER:
switch (type->sampler_dim)
{
case HLSL_SAMPLER_DIM_1D:
return D3D_SVT_SAMPLER1D;
case HLSL_SAMPLER_DIM_2D:
return D3D_SVT_SAMPLER2D;
case HLSL_SAMPLER_DIM_3D:
return D3D_SVT_SAMPLER3D;
case HLSL_SAMPLER_DIM_CUBE:
return D3D_SVT_SAMPLERCUBE;
case HLSL_SAMPLER_DIM_GENERIC:
return D3D_SVT_SAMPLER;
default:
assert(0);
}
break;
case HLSL_TYPE_STRING:
return D3D_SVT_STRING;
case HLSL_TYPE_TEXTURE:
switch (type->sampler_dim)
{
case HLSL_SAMPLER_DIM_1D:
return D3D_SVT_TEXTURE1D;
case HLSL_SAMPLER_DIM_2D:
return D3D_SVT_TEXTURE2D;
case HLSL_SAMPLER_DIM_3D:
return D3D_SVT_TEXTURE3D;
case HLSL_SAMPLER_DIM_CUBE:
return D3D_SVT_TEXTURECUBE;
case HLSL_SAMPLER_DIM_GENERIC:
return D3D_SVT_TEXTURE;
default:
assert(0);
}
break;
case HLSL_TYPE_UINT:
return D3D_SVT_UINT;
case HLSL_TYPE_VERTEXSHADER:
return D3D_SVT_VERTEXSHADER;
case HLSL_TYPE_VOID:
return D3D_SVT_VOID;
default:
assert(0);
}
assert(0);
return 0;
}
static void write_sm4_type(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *buffer, struct hlsl_type *type)
{
const struct hlsl_type *array_type = get_array_type(type);
const char *name = array_type->name ? array_type->name : "<unnamed>";
const struct hlsl_profile_info *profile = ctx->profile;
unsigned int field_count = 0, array_size = 0;
size_t fields_offset = 0, name_offset = 0;
struct hlsl_struct_field *field;
if (type->bytecode_offset)
return;
if (profile->major_version >= 5)
name_offset = put_string(buffer, name);
if (type->type == HLSL_CLASS_ARRAY)
array_size = get_array_size(type);
if (array_type->type == HLSL_CLASS_STRUCT)
{
LIST_FOR_EACH_ENTRY(field, array_type->e.elements, struct hlsl_struct_field, entry)
{
field->name_bytecode_offset = put_string(buffer, field->name);
write_sm4_type(ctx, buffer, field->type);
}
fields_offset = bytecode_get_size(buffer);
LIST_FOR_EACH_ENTRY(field, array_type->e.elements, struct hlsl_struct_field, entry)
{
put_u32(buffer, field->name_bytecode_offset);
put_u32(buffer, field->type->bytecode_offset);
put_u32(buffer, field->reg_offset);
++field_count;
}
}
type->bytecode_offset = put_u32(buffer, vkd3d_make_u32(sm4_class(type), sm4_base_type(type)));
put_u32(buffer, vkd3d_make_u32(type->dimy, type->dimx));
put_u32(buffer, vkd3d_make_u32(array_size, field_count));
put_u32(buffer, fields_offset);
if (profile->major_version >= 5)
{
put_u32(buffer, 0); /* FIXME: unknown */
put_u32(buffer, 0); /* FIXME: unknown */
put_u32(buffer, 0); /* FIXME: unknown */
put_u32(buffer, 0); /* FIXME: unknown */
put_u32(buffer, name_offset);
}
}
static void write_sm4_rdef(struct hlsl_ctx *ctx, struct dxbc_writer *dxbc)
{
size_t cbuffers_offset, resources_offset, creator_offset, string_offset;
size_t cbuffer_position, resource_position, creator_position;
const struct hlsl_profile_info *profile = ctx->profile;
struct vkd3d_bytecode_buffer buffer = {0};
unsigned int cbuffer_count = 0, i, j;
const struct hlsl_buffer *cbuffer;
static const uint16_t target_types[] =
{
0xffff, /* PIXEL */
0xfffe, /* VERTEX */
0x4753, /* GEOMETRY */
0x4853, /* HULL */
0x4453, /* DOMAIN */
0x4353, /* COMPUTE */
};
LIST_FOR_EACH_ENTRY(cbuffer, &ctx->buffers, struct hlsl_buffer, entry)
{
if (cbuffer->reg.allocated)
++cbuffer_count;
}
put_u32(&buffer, cbuffer_count);
cbuffer_position = put_u32(&buffer, 0);
put_u32(&buffer, cbuffer_count); /* bound resource count */
resource_position = put_u32(&buffer, 0);
put_u32(&buffer, vkd3d_make_u32(vkd3d_make_u16(profile->minor_version, profile->major_version),
target_types[profile->type]));
put_u32(&buffer, 0); /* FIXME: compilation flags */
creator_position = put_u32(&buffer, 0);
if (profile->major_version >= 5)
{
put_u32(&buffer, TAG_RD11);
put_u32(&buffer, 15 * sizeof(uint32_t)); /* size of RDEF header including this header */
put_u32(&buffer, 6 * sizeof(uint32_t)); /* size of buffer desc */
put_u32(&buffer, 8 * sizeof(uint32_t)); /* size of binding desc */
put_u32(&buffer, 10 * sizeof(uint32_t)); /* size of variable desc */
put_u32(&buffer, 9 * sizeof(uint32_t)); /* size of type desc */
put_u32(&buffer, 3 * sizeof(uint32_t)); /* size of member desc */
put_u32(&buffer, 0); /* unknown; possibly a null terminator */
}
/* Bound resources. */
resources_offset = bytecode_get_size(&buffer);
set_u32(&buffer, resource_position, resources_offset);
LIST_FOR_EACH_ENTRY(cbuffer, &ctx->buffers, struct hlsl_buffer, entry)
{
uint32_t flags = 0;
if (!cbuffer->reg.allocated)
continue;
if (cbuffer->reservation.type)
flags |= D3D_SIF_USERPACKED;
put_u32(&buffer, 0); /* name */
put_u32(&buffer, cbuffer->type == HLSL_BUFFER_CONSTANT ? D3D_SIT_CBUFFER : D3D_SIT_TBUFFER);
put_u32(&buffer, 0); /* return type */
put_u32(&buffer, 0); /* dimension */
put_u32(&buffer, 0); /* multisample count */
put_u32(&buffer, cbuffer->reg.id); /* bind point */
put_u32(&buffer, 1); /* bind count */
put_u32(&buffer, flags); /* flags */
}
i = 0;
LIST_FOR_EACH_ENTRY(cbuffer, &ctx->buffers, struct hlsl_buffer, entry)
{
if (!cbuffer->reg.allocated)
continue;
string_offset = put_string(&buffer, cbuffer->name);
set_u32(&buffer, resources_offset + i++ * 8 * sizeof(uint32_t), string_offset);
}
/* Buffers. */
cbuffers_offset = bytecode_get_size(&buffer);
set_u32(&buffer, cbuffer_position, cbuffers_offset);
LIST_FOR_EACH_ENTRY(cbuffer, &ctx->buffers, struct hlsl_buffer, entry)
{
const struct hlsl_ir_var *var;
unsigned int var_count = 0;
if (!cbuffer->reg.allocated)
continue;
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
{
if (var->is_uniform && var->buffer == cbuffer)
++var_count;
}
put_u32(&buffer, 0); /* name */
put_u32(&buffer, var_count);
put_u32(&buffer, 0); /* variable offset */
put_u32(&buffer, align(cbuffer->size, 4) * sizeof(float));
put_u32(&buffer, 0); /* FIXME: flags */
put_u32(&buffer, cbuffer->type == HLSL_BUFFER_CONSTANT ? D3D_CT_CBUFFER : D3D_CT_TBUFFER);
}
i = 0;
LIST_FOR_EACH_ENTRY(cbuffer, &ctx->buffers, struct hlsl_buffer, entry)
{
if (!cbuffer->reg.allocated)
continue;
string_offset = put_string(&buffer, cbuffer->name);
set_u32(&buffer, cbuffers_offset + i++ * 6 * sizeof(uint32_t), string_offset);
}
i = 0;
LIST_FOR_EACH_ENTRY(cbuffer, &ctx->buffers, struct hlsl_buffer, entry)
{
size_t vars_start = bytecode_get_size(&buffer);
const struct hlsl_ir_var *var;
if (!cbuffer->reg.allocated)
continue;
set_u32(&buffer, cbuffers_offset + (i++ * 6 + 2) * sizeof(uint32_t), vars_start);
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
{
if (var->is_uniform && var->buffer == cbuffer)
{
uint32_t flags = 0;
if (var->last_read)
flags |= D3D_SVF_USED;
put_u32(&buffer, 0); /* name */
put_u32(&buffer, var->buffer_offset);
put_u32(&buffer, var->data_type->reg_size * sizeof(float));
put_u32(&buffer, flags);
put_u32(&buffer, 0); /* type */
put_u32(&buffer, 0); /* FIXME: default value */
if (profile->major_version >= 5)
{
put_u32(&buffer, 0); /* texture start */
put_u32(&buffer, 0); /* texture count */
put_u32(&buffer, 0); /* sampler start */
put_u32(&buffer, 0); /* sampler count */
}
}
}
j = 0;
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
{
if (var->is_uniform && var->buffer == cbuffer)
{
const unsigned int var_size = (profile->major_version >= 5 ? 10 : 6);
size_t var_offset = vars_start + j * var_size * sizeof(uint32_t);
size_t string_offset = put_string(&buffer, var->name);
set_u32(&buffer, var_offset, string_offset);
write_sm4_type(ctx, &buffer, var->data_type);
set_u32(&buffer, var_offset + 4 * sizeof(uint32_t), var->data_type->bytecode_offset);
++j;
}
}
}
creator_offset = put_string(&buffer, vkd3d_shader_get_version(NULL, NULL));
set_u32(&buffer, creator_position, creator_offset);
dxbc_writer_add_section(dxbc, TAG_RDEF, buffer.data, buffer.size);
}
struct sm4_register
{
enum vkd3d_sm4_register_type type;
uint32_t idx[2];
unsigned int idx_count;
enum vkd3d_sm4_dimension dim;
};
struct sm4_instruction
{
enum vkd3d_sm4_opcode opcode;
struct
{
struct sm4_register reg;
unsigned int writemask;
} dst;
struct
{
struct sm4_register reg;
unsigned int swizzle;
} srcs[2];
unsigned int src_count;
uint32_t idx[2];
unsigned int idx_count;
unsigned int has_dst;
};
static unsigned int sm4_swizzle_type(enum vkd3d_sm4_register_type type)
{
switch (type)
{
case VKD3D_SM4_RT_CONSTBUFFER:
case VKD3D_SM4_RT_INPUT:
case VKD3D_SM4_RT_TEMP:
return VKD3D_SM4_SWIZZLE_VEC4;
default:
FIXME("Unhandled register type %#x.\n", type);
return VKD3D_SM4_SWIZZLE_VEC4;
}
}
static void sm4_register_from_deref(struct hlsl_ctx *ctx, struct sm4_register *reg,
unsigned int *writemask, const struct hlsl_deref *deref, const struct hlsl_type *data_type)
{
const struct hlsl_ir_var *var = deref->var;
if (var->is_uniform)
{
reg->type = VKD3D_SM4_RT_CONSTBUFFER;
reg->idx[0] = var->buffer->reg.id;
reg->idx[1] = var->buffer_offset / 4;
reg->idx_count = 2;
*writemask = ((1u << data_type->dimx) - 1) << (var->buffer_offset & 3);
}
else if (var->is_input_semantic)
{
bool has_idx;
if (hlsl_sm4_register_from_semantic(ctx, &var->semantic, false, &reg->type, &has_idx))
{
if (has_idx)
{
reg->idx[0] = var->semantic.index;
reg->idx_count = 1;
}
reg->dim = VKD3D_SM4_DIMENSION_VEC4;
*writemask = (1u << data_type->dimx) - 1;
}
else
{
struct hlsl_reg hlsl_reg = hlsl_reg_from_deref(deref, data_type);
assert(hlsl_reg.allocated);
reg->type = VKD3D_SM4_RT_INPUT;
reg->dim = VKD3D_SM4_DIMENSION_VEC4;
reg->idx[0] = hlsl_reg.id;
reg->idx_count = 1;
*writemask = hlsl_reg.writemask;
}
}
else if (var->is_output_semantic)
{
bool has_idx;
if (hlsl_sm4_register_from_semantic(ctx, &var->semantic, true, &reg->type, &has_idx))
{
if (has_idx)
{
reg->idx[0] = var->semantic.index;
reg->idx_count = 1;
}
if (reg->type == VKD3D_SM4_RT_DEPTHOUT)
reg->dim = VKD3D_SM4_DIMENSION_SCALAR;
else
reg->dim = VKD3D_SM4_DIMENSION_VEC4;
*writemask = (1u << data_type->dimx) - 1;
}
else
{
struct hlsl_reg hlsl_reg = hlsl_reg_from_deref(deref, data_type);
assert(hlsl_reg.allocated);
reg->type = VKD3D_SM4_RT_OUTPUT;
reg->dim = VKD3D_SM4_DIMENSION_VEC4;
reg->idx[0] = hlsl_reg.id;
reg->idx_count = 1;
*writemask = hlsl_reg.writemask;
}
}
else
{
struct hlsl_reg hlsl_reg = hlsl_reg_from_deref(deref, data_type);
assert(hlsl_reg.allocated);
reg->type = VKD3D_SM4_RT_TEMP;
reg->dim = VKD3D_SM4_DIMENSION_VEC4;
reg->idx[0] = hlsl_reg.id;
reg->idx_count = 1;
*writemask = hlsl_reg.writemask;
}
}
static void sm4_register_from_node(struct sm4_register *reg, unsigned int *writemask, const struct hlsl_ir_node *instr)
{
assert(instr->reg.allocated);
reg->type = VKD3D_SM4_RT_TEMP;
reg->dim = VKD3D_SM4_DIMENSION_VEC4;
reg->idx[0] = instr->reg.id;
reg->idx_count = 1;
*writemask = instr->reg.writemask;
}
static uint32_t sm4_encode_register(const struct sm4_register *reg)
{
return (reg->type << VKD3D_SM4_REGISTER_TYPE_SHIFT)
| (reg->idx_count << VKD3D_SM4_REGISTER_ORDER_SHIFT)
| (reg->dim << VKD3D_SM4_DIMENSION_SHIFT);
}
static uint32_t sm4_register_order(const struct sm4_register *reg)
{
uint32_t order = 1;
if (reg->type == VKD3D_SM4_RT_IMMCONST)
order += reg->dim == VKD3D_SM4_DIMENSION_VEC4 ? 4 : 1;
order += reg->idx_count;
return order;
}
static void write_sm4_instruction(struct vkd3d_bytecode_buffer *buffer, const struct sm4_instruction *instr)
{
uint32_t token = instr->opcode;
unsigned int size = 1, i, j;
if (instr->has_dst)
size += sm4_register_order(&instr->dst.reg);
for (i = 0; i < instr->src_count; ++i)
size += sm4_register_order(&instr->srcs[i].reg);
size += instr->idx_count;
token |= (size << VKD3D_SM4_INSTRUCTION_LENGTH_SHIFT);
put_u32(buffer, token);
if (instr->has_dst)
{
token = sm4_encode_register(&instr->dst.reg);
if (instr->dst.reg.dim == VKD3D_SM4_DIMENSION_VEC4)
token |= instr->dst.writemask << VKD3D_SM4_WRITEMASK_SHIFT;
put_u32(buffer, token);
for (j = 0; j < instr->dst.reg.idx_count; ++j)
put_u32(buffer, instr->dst.reg.idx[j]);
}
for (i = 0; i < instr->src_count; ++i)
{
token = sm4_encode_register(&instr->srcs[i].reg);
token |= sm4_swizzle_type(instr->srcs[i].reg.type) << VKD3D_SM4_SWIZZLE_TYPE_SHIFT;
token |= instr->srcs[i].swizzle << VKD3D_SM4_SWIZZLE_SHIFT;
put_u32(buffer, token);
for (j = 0; j < instr->srcs[i].reg.idx_count; ++j)
put_u32(buffer, instr->srcs[i].reg.idx[j]);
}
for (j = 0; j < instr->idx_count; ++j)
put_u32(buffer, instr->idx[j]);
}
static void write_sm4_dcl_constant_buffer(struct vkd3d_bytecode_buffer *buffer, const struct hlsl_buffer *cbuffer)
{
const struct sm4_instruction instr =
{
.opcode = VKD3D_SM4_OP_DCL_CONSTANT_BUFFER,
.srcs[0].reg.dim = VKD3D_SM4_DIMENSION_VEC4,
.srcs[0].reg.type = VKD3D_SM4_RT_CONSTBUFFER,
.srcs[0].reg.idx = {cbuffer->reg.id, (cbuffer->used_size + 3) / 4},
.srcs[0].reg.idx_count = 2,
.srcs[0].swizzle = HLSL_SWIZZLE(X, Y, Z, W),
.src_count = 1,
};
write_sm4_instruction(buffer, &instr);
}
static void write_sm4_dcl_semantic(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_var *var)
{
const struct hlsl_profile_info *profile = ctx->profile;
const bool output = var->is_output_semantic;
D3D_NAME usage;
bool has_idx;
struct sm4_instruction instr =
{
.dst.reg.dim = VKD3D_SM4_DIMENSION_VEC4,
.has_dst = 1,
};
if (hlsl_sm4_register_from_semantic(ctx, &var->semantic, output, &instr.dst.reg.type, &has_idx))
{
if (has_idx)
{
instr.dst.reg.idx[0] = var->semantic.index;
instr.dst.reg.idx_count = 1;
}
else
{
instr.dst.reg.idx_count = 0;
}
instr.dst.writemask = (1 << var->data_type->dimx) - 1;
}
else
{
instr.dst.reg.type = output ? VKD3D_SM4_RT_OUTPUT : VKD3D_SM4_RT_INPUT;
instr.dst.reg.idx[0] = var->reg.id;
instr.dst.reg.idx_count = 1;
instr.dst.writemask = var->reg.writemask;
}
if (instr.dst.reg.type == VKD3D_SM4_RT_DEPTHOUT)
instr.dst.reg.dim = VKD3D_SM4_DIMENSION_SCALAR;
hlsl_sm4_usage_from_semantic(ctx, &var->semantic, output, &usage);
if (var->is_input_semantic)
{
switch (usage)
{
case D3D_NAME_UNDEFINED:
instr.opcode = (profile->type == VKD3D_SHADER_TYPE_PIXEL)
? VKD3D_SM4_OP_DCL_INPUT_PS : VKD3D_SM4_OP_DCL_INPUT;
break;
case D3D_NAME_INSTANCE_ID:
case D3D_NAME_PRIMITIVE_ID:
case D3D_NAME_VERTEX_ID:
instr.opcode = (profile->type == VKD3D_SHADER_TYPE_PIXEL)
? VKD3D_SM4_OP_DCL_INPUT_PS_SGV : VKD3D_SM4_OP_DCL_INPUT_SGV;
break;
default:
instr.opcode = (profile->type == VKD3D_SHADER_TYPE_PIXEL)
? VKD3D_SM4_OP_DCL_INPUT_PS_SIV : VKD3D_SM4_OP_DCL_INPUT_SIV;
break;
}
if (profile->type == VKD3D_SHADER_TYPE_PIXEL)
instr.opcode |= VKD3DSIM_LINEAR << VKD3D_SM4_INTERPOLATION_MODE_SHIFT;
}
else
{
if (usage == D3D_NAME_UNDEFINED || profile->type == VKD3D_SHADER_TYPE_PIXEL)
instr.opcode = VKD3D_SM4_OP_DCL_OUTPUT;
else
instr.opcode = VKD3D_SM4_OP_DCL_OUTPUT_SIV;
}
switch (usage)
{
case D3D_NAME_COVERAGE:
case D3D_NAME_DEPTH:
case D3D_NAME_DEPTH_GREATER_EQUAL:
case D3D_NAME_DEPTH_LESS_EQUAL:
case D3D_NAME_TARGET:
case D3D_NAME_UNDEFINED:
break;
default:
instr.idx_count = 1;
instr.idx[0] = usage;
break;
}
write_sm4_instruction(buffer, &instr);
}
static void write_sm4_dcl_temps(struct vkd3d_bytecode_buffer *buffer, uint32_t temp_count)
{
struct sm4_instruction instr =
{
.opcode = VKD3D_SM4_OP_DCL_TEMPS,
.idx = {temp_count},
.idx_count = 1,
};
write_sm4_instruction(buffer, &instr);
}
static void write_sm4_ret(struct vkd3d_bytecode_buffer *buffer)
{
struct sm4_instruction instr =
{
.opcode = VKD3D_SM4_OP_RET,
};
write_sm4_instruction(buffer, &instr);
}
static void write_sm4_load(struct hlsl_ctx *ctx,
struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_load *load)
{
struct sm4_instruction instr;
unsigned int writemask;
memset(&instr, 0, sizeof(instr));
instr.opcode = VKD3D_SM4_OP_MOV;
sm4_register_from_node(&instr.dst.reg, &instr.dst.writemask, &load->node);
instr.has_dst = 1;
sm4_register_from_deref(ctx, &instr.srcs[0].reg, &writemask, &load->src, load->node.data_type);
instr.srcs[0].swizzle = hlsl_map_swizzle(hlsl_swizzle_from_writemask(writemask), instr.dst.writemask);
instr.src_count = 1;
write_sm4_instruction(buffer, &instr);
}
static void write_sm4_store(struct hlsl_ctx *ctx,
struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_store *store)
{
const struct hlsl_ir_node *rhs = store->rhs.node;
struct sm4_instruction instr;
unsigned int writemask;
if (store->lhs.var->data_type->type == HLSL_CLASS_MATRIX)
{
hlsl_fixme(ctx, store->node.loc, "Store to a matrix variable.\n");
return;
}
memset(&instr, 0, sizeof(instr));
instr.opcode = VKD3D_SM4_OP_MOV;
sm4_register_from_deref(ctx, &instr.dst.reg, &writemask, &store->lhs, rhs->data_type);
instr.dst.writemask = hlsl_combine_writemasks(writemask, store->writemask);
instr.has_dst = 1;
sm4_register_from_node(&instr.srcs[0].reg, &writemask, rhs);
instr.srcs[0].swizzle = hlsl_map_swizzle(hlsl_swizzle_from_writemask(writemask), instr.dst.writemask);
instr.src_count = 1;
write_sm4_instruction(buffer, &instr);
}
static void write_sm4_swizzle(struct hlsl_ctx *ctx,
struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_swizzle *swizzle)
{
struct sm4_instruction instr;
unsigned int writemask;
memset(&instr, 0, sizeof(instr));
instr.opcode = VKD3D_SM4_OP_MOV;
sm4_register_from_node(&instr.dst.reg, &instr.dst.writemask, &swizzle->node);
instr.has_dst = 1;
sm4_register_from_node(&instr.srcs[0].reg, &writemask, swizzle->val.node);
instr.srcs[0].swizzle = hlsl_map_swizzle(hlsl_combine_swizzles(hlsl_swizzle_from_writemask(writemask),
swizzle->swizzle, swizzle->node.data_type->dimx), instr.dst.writemask);
instr.src_count = 1;
write_sm4_instruction(buffer, &instr);
}
static void write_sm4_shdr(struct hlsl_ctx *ctx,
const struct hlsl_ir_function_decl *entry_func, struct dxbc_writer *dxbc)
{
const struct hlsl_profile_info *profile = ctx->profile;
struct vkd3d_bytecode_buffer buffer = {0};
const struct hlsl_buffer *cbuffer;
const struct hlsl_ir_node *instr;
const struct hlsl_ir_var *var;
size_t token_count_position;
static const uint16_t shader_types[VKD3D_SHADER_TYPE_COUNT] =
{
VKD3D_SM4_PS,
VKD3D_SM4_VS,
VKD3D_SM4_GS,
VKD3D_SM5_HS,
VKD3D_SM5_DS,
VKD3D_SM5_CS,
0, /* EFFECT */
0, /* TEXTURE */
VKD3D_SM4_LIB,
};
put_u32(&buffer, vkd3d_make_u32((profile->major_version << 4) | profile->minor_version, shader_types[profile->type]));
token_count_position = put_u32(&buffer, 0);
LIST_FOR_EACH_ENTRY(cbuffer, &ctx->buffers, struct hlsl_buffer, entry)
{
if (cbuffer->reg.allocated)
write_sm4_dcl_constant_buffer(&buffer, cbuffer);
}
LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
{
if ((var->is_input_semantic && var->last_read) || (var->is_output_semantic && var->first_write))
write_sm4_dcl_semantic(ctx, &buffer, var);
}
if (ctx->temp_count)
write_sm4_dcl_temps(&buffer, ctx->temp_count);
LIST_FOR_EACH_ENTRY(instr, entry_func->body, struct hlsl_ir_node, entry)
{
if (instr->data_type)
{
if (instr->data_type->type == HLSL_CLASS_MATRIX)
{
FIXME("Matrix operations need to be lowered.\n");
break;
}
assert(instr->data_type->type == HLSL_CLASS_SCALAR || instr->data_type->type == HLSL_CLASS_VECTOR);
}
switch (instr->type)
{
case HLSL_IR_LOAD:
write_sm4_load(ctx, &buffer, hlsl_ir_load(instr));
break;
case HLSL_IR_STORE:
write_sm4_store(ctx, &buffer, hlsl_ir_store(instr));
break;
case HLSL_IR_SWIZZLE:
write_sm4_swizzle(ctx, &buffer, hlsl_ir_swizzle(instr));
break;
default:
FIXME("Unhandled instruction type %s.\n", hlsl_node_type_to_string(instr->type));
}
}
write_sm4_ret(&buffer);
set_u32(&buffer, token_count_position, bytecode_get_size(&buffer) / sizeof(uint32_t));
dxbc_writer_add_section(dxbc, TAG_SHDR, buffer.data, buffer.size);
}
int hlsl_sm4_write(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry_func, struct vkd3d_shader_code *out)
{
struct dxbc_writer dxbc;
size_t i;
int ret;
dxbc_writer_init(&dxbc);
write_sm4_signature(ctx, &dxbc, false);
write_sm4_signature(ctx, &dxbc, true);
write_sm4_rdef(ctx, &dxbc);
write_sm4_shdr(ctx, entry_func, &dxbc);
if (!(ret = ctx->result))
ret = dxbc_writer_write(&dxbc, out);
for (i = 0; i < dxbc.section_count; ++i)
vkd3d_free((void *)dxbc.sections[i].data);
return ret;
}
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