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vkd3d/libs/vkd3d-shader/ir.c
Zebediah Figura 852eefc01d vkd3d-shader/ir: Synthesize HS inputs with the register index and write mask of the signature element. 
This pass was written as if to output normalized I/O, but it runs before the I/O
normalization pass.

Fixes: 98b5e2c6e0
2023-11-07 22:26:53 +01:00

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/*
* 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"
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 shader_instruction_is_dcl(const struct vkd3d_shader_instruction *ins)
{
return (VKD3DSIH_DCL <= ins->handler_idx && ins->handler_idx <= VKD3DSIH_DCL_VERTICES_OUT)
|| ins->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 void shader_register_eliminate_phase_addressing(struct vkd3d_shader_register *reg,
unsigned int instance_id)
{
unsigned int i;
for (i = 0; i < reg->idx_count; ++i)
{
if (reg->idx[i].rel_addr && shader_register_is_phase_instance_id(&reg->idx[i].rel_addr->reg))
{
reg->idx[i].rel_addr = NULL;
reg->idx[i].offset += instance_id;
}
}
}
static void shader_instruction_eliminate_phase_instance_id(struct vkd3d_shader_instruction *ins,
unsigned int instance_id)
{
struct vkd3d_shader_register *reg;
unsigned int i;
for (i = 0; i < ins->src_count; ++i)
{
reg = (struct vkd3d_shader_register *)&ins->src[i].reg;
if (shader_register_is_phase_instance_id(reg))
{
reg->type = VKD3DSPR_IMMCONST;
reg->precision = VKD3D_SHADER_REGISTER_PRECISION_DEFAULT;
reg->non_uniform = false;
reg->idx[0].offset = ~0u;
reg->idx[0].rel_addr = NULL;
reg->idx[1].offset = ~0u;
reg->idx[1].rel_addr = NULL;
reg->idx[2].offset = ~0u;
reg->idx[2].rel_addr = NULL;
reg->idx_count = 0;
reg->dimension = VSIR_DIMENSION_SCALAR;
reg->u.immconst_uint[0] = instance_id;
continue;
}
shader_register_eliminate_phase_addressing(reg, instance_id);
}
for (i = 0; i < ins->dst_count; ++i)
shader_register_eliminate_phase_addressing((struct vkd3d_shader_register *)&ins->dst[i].reg, instance_id);
}
static const struct vkd3d_shader_varying_map *find_varying_map(
const struct vkd3d_shader_varying_map_info *varying_map, unsigned int signature_idx)
{
unsigned int i;
for (i = 0; i < varying_map->varying_count; ++i)
{
if (varying_map->varying_map[i].output_signature_index == signature_idx)
return &varying_map->varying_map[i];
}
return NULL;
}
static enum vkd3d_result remap_output_signature(struct vkd3d_shader_parser *parser,
const struct vkd3d_shader_compile_info *compile_info)
{
struct shader_signature *signature = &parser->shader_desc.output_signature;
const struct vkd3d_shader_varying_map_info *varying_map;
unsigned int i;
if (!(varying_map = vkd3d_find_struct(compile_info->next, VARYING_MAP_INFO)))
return VKD3D_OK;
for (i = 0; i < signature->element_count; ++i)
{
const struct vkd3d_shader_varying_map *map = find_varying_map(varying_map, i);
struct signature_element *e = &signature->elements[i];
if (map)
{
unsigned int input_mask = map->input_mask;
e->target_location = map->input_register_index;
/* It is illegal in Vulkan if the next shader uses the same varying
* location with a different mask. */
if (input_mask && input_mask != e->mask)
{
vkd3d_shader_parser_error(parser, VKD3D_SHADER_ERROR_VSIR_NOT_IMPLEMENTED,
"Aborting due to not yet implemented feature: "
"Output mask %#x does not match input mask %#x.",
e->mask, input_mask);
return VKD3D_ERROR_NOT_IMPLEMENTED;
}
}
else
{
e->target_location = SIGNATURE_TARGET_LOCATION_UNUSED;
}
}
for (i = 0; i < varying_map->varying_count; ++i)
{
if (varying_map->varying_map[i].output_signature_index >= signature->element_count)
{
vkd3d_shader_parser_error(parser, VKD3D_SHADER_ERROR_VSIR_NOT_IMPLEMENTED,
"Aborting due to not yet implemented feature: "
"The next stage consumes varyings not written by this stage.");
return VKD3D_ERROR_NOT_IMPLEMENTED;
}
}
return VKD3D_OK;
}
struct hull_flattener
{
struct vkd3d_shader_instruction_array instructions;
unsigned int max_temp_count;
unsigned int temp_dcl_idx;
unsigned int instance_count;
unsigned int phase_body_idx;
enum vkd3d_shader_opcode phase;
struct vkd3d_shader_location last_ret_location;
};
static bool flattener_is_in_fork_or_join_phase(const struct hull_flattener *flattener)
{
return flattener->phase == VKD3DSIH_HS_FORK_PHASE || flattener->phase == VKD3DSIH_HS_JOIN_PHASE;
}
struct shader_phase_location
{
unsigned int index;
unsigned int instance_count;
unsigned int instruction_count;
};
struct shader_phase_location_array
{
/* Unlikely worst case: one phase for each component of each output register. */
struct shader_phase_location locations[MAX_REG_OUTPUT * VKD3D_VEC4_SIZE];
unsigned int count;
};
static void flattener_eliminate_phase_related_dcls(struct hull_flattener *normaliser,
unsigned int index, struct shader_phase_location_array *locations)
{
struct vkd3d_shader_instruction *ins = &normaliser->instructions.elements[index];
struct shader_phase_location *loc;
bool b;
if (ins->handler_idx == VKD3DSIH_HS_FORK_PHASE || ins->handler_idx == VKD3DSIH_HS_JOIN_PHASE)
{
b = flattener_is_in_fork_or_join_phase(normaliser);
/* Reset the phase info. */
normaliser->phase_body_idx = ~0u;
normaliser->phase = ins->handler_idx;
normaliser->instance_count = 1;
/* Leave the first occurrence and delete the rest. */
if (b)
vkd3d_shader_instruction_make_nop(ins);
return;
}
else if (ins->handler_idx == VKD3DSIH_DCL_HS_FORK_PHASE_INSTANCE_COUNT
|| ins->handler_idx == VKD3DSIH_DCL_HS_JOIN_PHASE_INSTANCE_COUNT)
{
normaliser->instance_count = ins->declaration.count + !ins->declaration.count;
vkd3d_shader_instruction_make_nop(ins);
return;
}
else if (ins->handler_idx == VKD3DSIH_DCL_INPUT && shader_register_is_phase_instance_id(
&ins->declaration.dst.reg))
{
vkd3d_shader_instruction_make_nop(ins);
return;
}
else if (ins->handler_idx == VKD3DSIH_DCL_TEMPS && normaliser->phase != VKD3DSIH_INVALID)
{
/* Leave only the first temp declaration and set it to the max count later. */
if (!normaliser->max_temp_count)
normaliser->temp_dcl_idx = index;
else
vkd3d_shader_instruction_make_nop(ins);
normaliser->max_temp_count = max(normaliser->max_temp_count, ins->declaration.count);
return;
}
if (normaliser->phase == VKD3DSIH_INVALID || shader_instruction_is_dcl(ins))
return;
if (normaliser->phase_body_idx == ~0u)
normaliser->phase_body_idx = index;
if (ins->handler_idx == VKD3DSIH_RET)
{
normaliser->last_ret_location = ins->location;
vkd3d_shader_instruction_make_nop(ins);
if (locations->count >= ARRAY_SIZE(locations->locations))
{
FIXME("Insufficient space for phase location.\n");
return;
}
loc = &locations->locations[locations->count++];
loc->index = normaliser->phase_body_idx;
loc->instance_count = normaliser->instance_count;
loc->instruction_count = index - normaliser->phase_body_idx;
}
}
static enum vkd3d_result flattener_flatten_phases(struct hull_flattener *normaliser,
struct shader_phase_location_array *locations)
{
struct shader_phase_location *loc;
unsigned int i, j, k, end, count;
for (i = 0, count = 0; i < locations->count; ++i)
count += (locations->locations[i].instance_count - 1) * locations->locations[i].instruction_count;
if (!shader_instruction_array_reserve(&normaliser->instructions, normaliser->instructions.count + count))
return VKD3D_ERROR_OUT_OF_MEMORY;
end = normaliser->instructions.count;
normaliser->instructions.count += count;
for (i = locations->count; i > 0; --i)
{
loc = &locations->locations[i - 1];
j = loc->index + loc->instruction_count;
memmove(&normaliser->instructions.elements[j + count], &normaliser->instructions.elements[j],
(end - j) * sizeof(*normaliser->instructions.elements));
end = j;
count -= (loc->instance_count - 1) * loc->instruction_count;
loc->index += count;
}
for (i = 0, count = 0; i < locations->count; ++i)
{
loc = &locations->locations[i];
/* Make a copy of the non-dcl instructions for each instance. */
for (j = 1; j < loc->instance_count; ++j)
{
for (k = 0; k < loc->instruction_count; ++k)
{
if (!shader_instruction_array_clone_instruction(&normaliser->instructions,
loc->index + loc->instruction_count * j + k, loc->index + k))
return VKD3D_ERROR_OUT_OF_MEMORY;
}
}
/* Replace each reference to the instance id with a constant instance id. */
for (j = 0; j < loc->instance_count; ++j)
{
for (k = 0; k < loc->instruction_count; ++k)
shader_instruction_eliminate_phase_instance_id(
&normaliser->instructions.elements[loc->index + loc->instruction_count * j + k], j);
}
}
return VKD3D_OK;
}
void vsir_register_init(struct vkd3d_shader_register *reg, enum vkd3d_shader_register_type reg_type,
enum vkd3d_data_type data_type, unsigned int idx_count)
{
reg->type = reg_type;
reg->precision = VKD3D_SHADER_REGISTER_PRECISION_DEFAULT;
reg->non_uniform = false;
reg->data_type = data_type;
reg->idx[0].offset = ~0u;
reg->idx[0].rel_addr = NULL;
reg->idx[1].offset = ~0u;
reg->idx[1].rel_addr = NULL;
reg->idx[2].offset = ~0u;
reg->idx[2].rel_addr = NULL;
reg->idx_count = idx_count;
reg->dimension = VSIR_DIMENSION_SCALAR;
}
void vsir_instruction_init(struct vkd3d_shader_instruction *ins, const struct vkd3d_shader_location *location,
enum vkd3d_shader_opcode handler_idx)
{
memset(ins, 0, sizeof(*ins));
ins->location = *location;
ins->handler_idx = handler_idx;
}
static enum vkd3d_result instruction_array_flatten_hull_shader_phases(struct vkd3d_shader_instruction_array *src_instructions)
{
struct hull_flattener flattener = {*src_instructions};
struct vkd3d_shader_instruction_array *instructions;
struct shader_phase_location_array locations;
enum vkd3d_result result = VKD3D_OK;
unsigned int i;
instructions = &flattener.instructions;
flattener.phase = VKD3DSIH_INVALID;
for (i = 0, locations.count = 0; i < instructions->count; ++i)
flattener_eliminate_phase_related_dcls(&flattener, i, &locations);
if ((result = flattener_flatten_phases(&flattener, &locations)) < 0)
return result;
if (flattener.phase != VKD3DSIH_INVALID)
{
if (flattener.temp_dcl_idx)
instructions->elements[flattener.temp_dcl_idx].declaration.count = flattener.max_temp_count;
if (!shader_instruction_array_reserve(&flattener.instructions, flattener.instructions.count + 1))
return VKD3D_ERROR_OUT_OF_MEMORY;
vsir_instruction_init(&instructions->elements[instructions->count++], &flattener.last_ret_location, VKD3DSIH_RET);
}
*src_instructions = flattener.instructions;
return result;
}
struct control_point_normaliser
{
struct vkd3d_shader_instruction_array instructions;
enum vkd3d_shader_opcode phase;
struct vkd3d_shader_src_param *outpointid_param;
};
static bool control_point_normaliser_is_in_control_point_phase(const struct control_point_normaliser *normaliser)
{
return normaliser->phase == VKD3DSIH_HS_CONTROL_POINT_PHASE;
}
static struct vkd3d_shader_src_param *instruction_array_create_outpointid_param(
struct vkd3d_shader_instruction_array *instructions)
{
struct vkd3d_shader_src_param *rel_addr;
if (!(rel_addr = shader_src_param_allocator_get(&instructions->src_params, 1)))
return NULL;
vsir_register_init(&rel_addr->reg, VKD3DSPR_OUTPOINTID, VKD3D_DATA_UINT, 0);
rel_addr->swizzle = 0;
rel_addr->modifiers = 0;
return rel_addr;
}
static void shader_dst_param_normalise_outpointid(struct vkd3d_shader_dst_param *dst_param,
struct control_point_normaliser *normaliser)
{
struct vkd3d_shader_register *reg = &dst_param->reg;
if (control_point_normaliser_is_in_control_point_phase(normaliser) && reg->type == VKD3DSPR_OUTPUT)
{
/* The TPF reader validates idx_count. */
assert(reg->idx_count == 1);
reg->idx[1] = reg->idx[0];
/* The control point id param is implicit here. Avoid later complications by inserting it. */
reg->idx[0].offset = 0;
reg->idx[0].rel_addr = normaliser->outpointid_param;
++reg->idx_count;
}
}
static void shader_dst_param_io_init(struct vkd3d_shader_dst_param *param, const struct signature_element *e,
enum vkd3d_shader_register_type reg_type, unsigned int idx_count)
{
param->write_mask = e->mask;
param->modifiers = 0;
param->shift = 0;
vsir_register_init(&param->reg, reg_type, vkd3d_data_type_from_component_type(e->component_type), idx_count);
}
static enum vkd3d_result control_point_normaliser_emit_hs_input(struct control_point_normaliser *normaliser,
const struct shader_signature *s, unsigned int input_control_point_count, unsigned int dst,
const struct vkd3d_shader_location *location)
{
struct vkd3d_shader_instruction *ins;
struct vkd3d_shader_dst_param *param;
const struct signature_element *e;
unsigned int i, count;
for (i = 0, count = 1; i < s->element_count; ++i)
count += !!s->elements[i].used_mask;
if (!shader_instruction_array_reserve(&normaliser->instructions, normaliser->instructions.count + count))
return VKD3D_ERROR_OUT_OF_MEMORY;
memmove(&normaliser->instructions.elements[dst + count], &normaliser->instructions.elements[dst],
(normaliser->instructions.count - dst) * sizeof(*normaliser->instructions.elements));
normaliser->instructions.count += count;
ins = &normaliser->instructions.elements[dst];
vsir_instruction_init(ins, location, VKD3DSIH_HS_CONTROL_POINT_PHASE);
ins->flags = 1;
++ins;
for (i = 0; i < s->element_count; ++i)
{
e = &s->elements[i];
if (!e->used_mask)
continue;
if (e->sysval_semantic != VKD3D_SHADER_SV_NONE)
{
vsir_instruction_init(ins, location, VKD3DSIH_DCL_INPUT_SIV);
param = &ins->declaration.register_semantic.reg;
ins->declaration.register_semantic.sysval_semantic = vkd3d_siv_from_sysval(e->sysval_semantic);
}
else
{
vsir_instruction_init(ins, location, VKD3DSIH_DCL_INPUT);
param = &ins->declaration.dst;
}
shader_dst_param_io_init(param, e, VKD3DSPR_INPUT, 2);
param->reg.idx[0].offset = input_control_point_count;
param->reg.idx[1].offset = e->register_index;
param->write_mask = e->mask;
++ins;
}
return VKD3D_OK;
}
static enum vkd3d_result instruction_array_normalise_hull_shader_control_point_io(
struct vkd3d_shader_instruction_array *src_instructions, const struct shader_signature *input_signature)
{
struct vkd3d_shader_instruction_array *instructions;
struct control_point_normaliser normaliser;
unsigned int input_control_point_count;
struct vkd3d_shader_instruction *ins;
enum vkd3d_result ret;
unsigned int i, j;
if (!(normaliser.outpointid_param = instruction_array_create_outpointid_param(src_instructions)))
{
ERR("Failed to allocate src param.\n");
return VKD3D_ERROR_OUT_OF_MEMORY;
}
normaliser.instructions = *src_instructions;
instructions = &normaliser.instructions;
normaliser.phase = VKD3DSIH_INVALID;
for (i = 0; i < normaliser.instructions.count; ++i)
{
ins = &instructions->elements[i];
switch (ins->handler_idx)
{
case VKD3DSIH_HS_CONTROL_POINT_PHASE:
case VKD3DSIH_HS_FORK_PHASE:
case VKD3DSIH_HS_JOIN_PHASE:
normaliser.phase = ins->handler_idx;
break;
default:
if (shader_instruction_is_dcl(ins))
break;
for (j = 0; j < ins->dst_count; ++j)
shader_dst_param_normalise_outpointid((struct vkd3d_shader_dst_param *)&ins->dst[j], &normaliser);
break;
}
}
normaliser.phase = VKD3DSIH_INVALID;
input_control_point_count = 1;
for (i = 0; i < instructions->count; ++i)
{
ins = &instructions->elements[i];
switch (ins->handler_idx)
{
case VKD3DSIH_DCL_INPUT_CONTROL_POINT_COUNT:
input_control_point_count = ins->declaration.count;
break;
case VKD3DSIH_HS_CONTROL_POINT_PHASE:
*src_instructions = normaliser.instructions;
return VKD3D_OK;
case VKD3DSIH_HS_FORK_PHASE:
case VKD3DSIH_HS_JOIN_PHASE:
ret = control_point_normaliser_emit_hs_input(&normaliser, input_signature,
input_control_point_count, i, &ins->location);
*src_instructions = normaliser.instructions;
return ret;
default:
break;
}
}
*src_instructions = normaliser.instructions;
return VKD3D_OK;
}
struct io_normaliser
{
struct vkd3d_shader_instruction_array instructions;
enum vkd3d_shader_type shader_type;
struct shader_signature *input_signature;
struct shader_signature *output_signature;
struct shader_signature *patch_constant_signature;
unsigned int max_temp_count;
unsigned int temp_dcl_idx;
unsigned int instance_count;
unsigned int phase_body_idx;
enum vkd3d_shader_opcode phase;
unsigned int output_control_point_count;
struct vkd3d_shader_src_param *outpointid_param;
struct vkd3d_shader_dst_param *input_dcl_params[MAX_REG_OUTPUT];
struct vkd3d_shader_dst_param *output_dcl_params[MAX_REG_OUTPUT];
struct vkd3d_shader_dst_param *pc_dcl_params[MAX_REG_OUTPUT];
uint8_t input_range_map[MAX_REG_OUTPUT][VKD3D_VEC4_SIZE];
uint8_t output_range_map[MAX_REG_OUTPUT][VKD3D_VEC4_SIZE];
uint8_t pc_range_map[MAX_REG_OUTPUT][VKD3D_VEC4_SIZE];
bool use_vocp;
};
static bool io_normaliser_is_in_fork_or_join_phase(const struct io_normaliser *normaliser)
{
return normaliser->phase == VKD3DSIH_HS_FORK_PHASE || normaliser->phase == VKD3DSIH_HS_JOIN_PHASE;
}
static bool io_normaliser_is_in_control_point_phase(const struct io_normaliser *normaliser)
{
return normaliser->phase == VKD3DSIH_HS_CONTROL_POINT_PHASE;
}
static unsigned int shader_signature_find_element_for_reg(const struct shader_signature *signature,
unsigned int reg_idx, unsigned int write_mask)
{
unsigned int i;
for (i = 0; i < signature->element_count; ++i)
{
struct signature_element *e = &signature->elements[i];
if (e->register_index <= reg_idx && e->register_index + e->register_count > reg_idx
&& (e->mask & write_mask) == write_mask)
{
return i;
}
}
/* Validated in the TPF reader. */
vkd3d_unreachable();
}
struct signature_element *vsir_signature_find_element_for_reg(const struct shader_signature *signature,
unsigned int reg_idx, unsigned int write_mask)
{
return &signature->elements[shader_signature_find_element_for_reg(signature, reg_idx, write_mask)];
}
static unsigned int range_map_get_register_count(uint8_t range_map[][VKD3D_VEC4_SIZE],
unsigned int register_idx, unsigned int write_mask)
{
return range_map[register_idx][vkd3d_write_mask_get_component_idx(write_mask)];
}
static void range_map_set_register_range(uint8_t range_map[][VKD3D_VEC4_SIZE], unsigned int register_idx,
unsigned int register_count, unsigned int write_mask, bool is_dcl_indexrange)
{
unsigned int i, j, r, c, component_idx, component_count;
assert(write_mask <= VKD3DSP_WRITEMASK_ALL);
component_idx = vkd3d_write_mask_get_component_idx(write_mask);
component_count = vkd3d_write_mask_component_count(write_mask);
assert(register_idx < MAX_REG_OUTPUT && MAX_REG_OUTPUT - register_idx >= register_count);
if (range_map[register_idx][component_idx] > register_count && is_dcl_indexrange)
{
/* Validated in the TPF reader. */
assert(range_map[register_idx][component_idx] != UINT8_MAX);
return;
}
if (range_map[register_idx][component_idx] == register_count)
{
/* Already done. This happens when fxc splits a register declaration by
* component(s). The dcl_indexrange instructions are split too. */
return;
}
range_map[register_idx][component_idx] = register_count;
for (i = 0; i < register_count; ++i)
{
r = register_idx + i;
for (j = !i; j < component_count; ++j)
{
c = component_idx + j;
/* A synthetic patch constant range which overlaps an existing range can start upstream of it
* for fork/join phase instancing, but ranges declared by dcl_indexrange should not overlap.
* The latter is validated in the TPF reader. */
assert(!range_map[r][c] || !is_dcl_indexrange);
range_map[r][c] = UINT8_MAX;
}
}
}
static void io_normaliser_add_index_range(struct io_normaliser *normaliser,
const struct vkd3d_shader_instruction *ins)
{
const struct vkd3d_shader_index_range *range = &ins->declaration.index_range;
const struct vkd3d_shader_register *reg = &range->dst.reg;
unsigned int reg_idx, write_mask, element_idx;
const struct shader_signature *signature;
uint8_t (*range_map)[VKD3D_VEC4_SIZE];
switch (reg->type)
{
case VKD3DSPR_INPUT:
case VKD3DSPR_INCONTROLPOINT:
range_map = normaliser->input_range_map;
signature = normaliser->input_signature;
break;
case VKD3DSPR_OUTCONTROLPOINT:
range_map = normaliser->output_range_map;
signature = normaliser->output_signature;
break;
case VKD3DSPR_OUTPUT:
if (!io_normaliser_is_in_fork_or_join_phase(normaliser))
{
range_map = normaliser->output_range_map;
signature = normaliser->output_signature;
break;
}
/* fall through */
case VKD3DSPR_PATCHCONST:
range_map = normaliser->pc_range_map;
signature = normaliser->patch_constant_signature;
break;
default:
/* Validated in the TPF reader. */
vkd3d_unreachable();
}
reg_idx = reg->idx[reg->idx_count - 1].offset;
write_mask = range->dst.write_mask;
element_idx = shader_signature_find_element_for_reg(signature, reg_idx, write_mask);
range_map_set_register_range(range_map, reg_idx, range->register_count,
signature->elements[element_idx].mask, true);
}
static int signature_element_mask_compare(const void *a, const void *b)
{
const struct signature_element *e = a, *f = b;
int ret;
return (ret = vkd3d_u32_compare(e->mask, f->mask)) ? ret : vkd3d_u32_compare(e->register_index, f->register_index);
}
static bool sysval_semantics_should_merge(const struct signature_element *e, const struct signature_element *f)
{
if (e->sysval_semantic < VKD3D_SHADER_SV_TESS_FACTOR_QUADEDGE
|| e->sysval_semantic > VKD3D_SHADER_SV_TESS_FACTOR_LINEDEN)
return false;
return e->sysval_semantic == f->sysval_semantic
/* Line detail and density must be merged together to match the SPIR-V array.
* This deletes one of the two sysvals, but these are not used. */
|| (e->sysval_semantic == VKD3D_SHADER_SV_TESS_FACTOR_LINEDET
&& f->sysval_semantic == VKD3D_SHADER_SV_TESS_FACTOR_LINEDEN)
|| (e->sysval_semantic == VKD3D_SHADER_SV_TESS_FACTOR_LINEDEN
&& f->sysval_semantic == VKD3D_SHADER_SV_TESS_FACTOR_LINEDET);
}
/* Merge tess factor sysvals because they are an array in SPIR-V. */
static void shader_signature_map_patch_constant_index_ranges(struct shader_signature *s,
uint8_t range_map[][VKD3D_VEC4_SIZE])
{
struct signature_element *e, *f;
unsigned int i, j, register_count;
qsort(s->elements, s->element_count, sizeof(s->elements[0]), signature_element_mask_compare);
for (i = 0; i < s->element_count; i += register_count)
{
e = &s->elements[i];
register_count = 1;
if (!e->sysval_semantic)
continue;
for (j = i + 1; j < s->element_count; ++j, ++register_count)
{
f = &s->elements[j];
if (f->register_index != e->register_index + register_count || !sysval_semantics_should_merge(e, f))
break;
}
if (register_count < 2)
continue;
range_map_set_register_range(range_map, e->register_index, register_count, e->mask, false);
}
}
static int signature_element_register_compare(const void *a, const void *b)
{
const struct signature_element *e = a, *f = b;
return vkd3d_u32_compare(e->register_index, f->register_index);
}
static int signature_element_index_compare(const void *a, const void *b)
{
const struct signature_element *e = a, *f = b;
return vkd3d_u32_compare(e->sort_index, f->sort_index);
}
static bool shader_signature_merge(struct shader_signature *s, uint8_t range_map[][VKD3D_VEC4_SIZE],
bool is_patch_constant)
{
unsigned int i, j, element_count, new_count, register_count;
struct signature_element *elements;
struct signature_element *e, *f;
element_count = s->element_count;
if (!(elements = vkd3d_malloc(element_count * sizeof(*elements))))
return false;
memcpy(elements, s->elements, element_count * sizeof(*elements));
qsort(elements, element_count, sizeof(elements[0]), signature_element_register_compare);
for (i = 0, new_count = 0; i < element_count; i = j, elements[new_count++] = *e)
{
e = &elements[i];
j = i + 1;
if (e->register_index == ~0u)
continue;
/* Do not merge if the register index will be relative-addressed. */
if (range_map_get_register_count(range_map, e->register_index, e->mask) > 1)
continue;
for (; j < element_count; ++j)
{
f = &elements[j];
/* Merge different components of the same register unless sysvals are different,
* or it will be relative-addressed. */
if (f->register_index != e->register_index || f->sysval_semantic != e->sysval_semantic
|| range_map_get_register_count(range_map, f->register_index, f->mask) > 1)
break;
TRACE("Merging %s, reg %u, mask %#x, sysval %#x with %s, mask %#x, sysval %#x.\n", e->semantic_name,
e->register_index, e->mask, e->sysval_semantic, f->semantic_name, f->mask, f->sysval_semantic);
assert(!(e->mask & f->mask));
e->mask |= f->mask;
e->used_mask |= f->used_mask;
e->semantic_index = min(e->semantic_index, f->semantic_index);
}
}
element_count = new_count;
vkd3d_free(s->elements);
s->elements = elements;
s->element_count = element_count;
if (is_patch_constant)
shader_signature_map_patch_constant_index_ranges(s, range_map);
for (i = 0, new_count = 0; i < element_count; i += register_count, elements[new_count++] = *e)
{
e = &elements[i];
register_count = 1;
if (e->register_index >= MAX_REG_OUTPUT)
continue;
register_count = range_map_get_register_count(range_map, e->register_index, e->mask);
assert(register_count != UINT8_MAX);
register_count += !register_count;
if (register_count > 1)
{
TRACE("Merging %s, base reg %u, count %u.\n", e->semantic_name, e->register_index, register_count);
e->register_count = register_count;
}
}
element_count = new_count;
/* Restoring the original order is required for sensible trace output. */
qsort(elements, element_count, sizeof(elements[0]), signature_element_index_compare);
s->element_count = element_count;
return true;
}
static unsigned int shader_register_normalise_arrayed_addressing(struct vkd3d_shader_register *reg,
unsigned int id_idx, unsigned int register_index)
{
assert(id_idx < ARRAY_SIZE(reg->idx) - 1);
/* For a relative-addressed register index, move the id up a slot to separate it from the address,
* because rel_addr can be replaced with a constant offset in some cases. */
if (reg->idx[id_idx].rel_addr)
{
reg->idx[id_idx + 1].rel_addr = NULL;
reg->idx[id_idx + 1].offset = reg->idx[id_idx].offset;
reg->idx[id_idx].offset -= register_index;
++id_idx;
}
/* Otherwise we have no address for the arrayed register, so insert one. This happens e.g. where
* tessellation level registers are merged into an array because they're an array in SPIR-V. */
else
{
++id_idx;
memmove(&reg->idx[1], &reg->idx[0], id_idx * sizeof(reg->idx[0]));
reg->idx[0].rel_addr = NULL;
reg->idx[0].offset = reg->idx[id_idx].offset - register_index;
}
return id_idx;
}
static bool shader_dst_param_io_normalise(struct vkd3d_shader_dst_param *dst_param, bool is_io_dcl,
struct io_normaliser *normaliser)
{
unsigned int id_idx, reg_idx, write_mask, element_idx;
struct vkd3d_shader_register *reg = &dst_param->reg;
struct vkd3d_shader_dst_param **dcl_params;
const struct shader_signature *signature;
const struct signature_element *e;
if ((reg->type == VKD3DSPR_OUTPUT && io_normaliser_is_in_fork_or_join_phase(normaliser))
|| reg->type == VKD3DSPR_PATCHCONST)
{
signature = normaliser->patch_constant_signature;
/* Convert patch constant outputs to the patch constant register type to avoid the need
* to convert compiler symbols when accessed as inputs in a later stage. */
reg->type = VKD3DSPR_PATCHCONST;
dcl_params = normaliser->pc_dcl_params;
}
else if (reg->type == VKD3DSPR_OUTPUT || dst_param->reg.type == VKD3DSPR_COLOROUT)
{
signature = normaliser->output_signature;
dcl_params = normaliser->output_dcl_params;
}
else if (dst_param->reg.type == VKD3DSPR_INCONTROLPOINT || dst_param->reg.type == VKD3DSPR_INPUT)
{
signature = normaliser->input_signature;
dcl_params = normaliser->input_dcl_params;
}
else
{
return true;
}
id_idx = reg->idx_count - 1;
reg_idx = reg->idx[id_idx].offset;
write_mask = dst_param->write_mask;
element_idx = shader_signature_find_element_for_reg(signature, reg_idx, write_mask);
e = &signature->elements[element_idx];
dst_param->write_mask >>= vkd3d_write_mask_get_component_idx(e->mask);
if (is_io_dcl)
{
/* Validated in the TPF reader. */
assert(element_idx < ARRAY_SIZE(normaliser->input_dcl_params));
if (dcl_params[element_idx])
{
/* Merge split declarations into a single one. */
dcl_params[element_idx]->write_mask |= dst_param->write_mask;
/* Turn this into a nop. */
return false;
}
else
{
dcl_params[element_idx] = dst_param;
}
}
if (io_normaliser_is_in_control_point_phase(normaliser) && reg->type == VKD3DSPR_OUTPUT)
{
if (is_io_dcl)
{
/* Emit an array size for the control points for consistency with inputs. */
reg->idx[0].offset = normaliser->output_control_point_count;
}
else
{
/* The control point id param. */
assert(reg->idx[0].rel_addr);
}
id_idx = 1;
}
if ((e->register_count > 1 || vsir_sysval_semantic_is_tess_factor(e->sysval_semantic)))
{
if (is_io_dcl)
{
/* For control point I/O, idx 0 contains the control point count.
* Ensure it is moved up to the next slot. */
reg->idx[id_idx].offset = reg->idx[0].offset;
reg->idx[0].offset = e->register_count;
++id_idx;
}
else
{
id_idx = shader_register_normalise_arrayed_addressing(reg, id_idx, e->register_index);
}
}
/* Replace the register index with the signature element index */
reg->idx[id_idx].offset = element_idx;
reg->idx_count = id_idx + 1;
return true;
}
static void shader_src_param_io_normalise(struct vkd3d_shader_src_param *src_param,
struct io_normaliser *normaliser)
{
unsigned int i, id_idx, reg_idx, write_mask, element_idx, component_idx;
struct vkd3d_shader_register *reg = &src_param->reg;
const struct shader_signature *signature;
const struct signature_element *e;
/* Input/output registers from one phase can be used as inputs in
* subsequent phases. Specifically:
*
* - Control phase inputs are available as "vicp" in fork and join
* phases.
* - Control phase outputs are available as "vocp" in fork and join
* phases.
* - Fork phase patch constants are available as "vpc" in join
* phases.
*
* We handle "vicp" here by converting INCONTROLPOINT src registers to
* type INPUT so they match the control phase declarations. We handle
* "vocp" by converting OUTCONTROLPOINT registers to type OUTPUT.
* Merging fork and join phases handles "vpc". */
switch (reg->type)
{
case VKD3DSPR_PATCHCONST:
signature = normaliser->patch_constant_signature;
break;
case VKD3DSPR_INCONTROLPOINT:
if (normaliser->shader_type == VKD3D_SHADER_TYPE_HULL)
reg->type = VKD3DSPR_INPUT;
/* fall through */
case VKD3DSPR_INPUT:
signature = normaliser->input_signature;
break;
case VKD3DSPR_OUTCONTROLPOINT:
if (normaliser->shader_type == VKD3D_SHADER_TYPE_HULL)
reg->type = VKD3DSPR_OUTPUT;
/* fall through */
case VKD3DSPR_OUTPUT:
signature = normaliser->output_signature;
break;
default:
return;
}
id_idx = reg->idx_count - 1;
reg_idx = reg->idx[id_idx].offset;
write_mask = VKD3DSP_WRITEMASK_0 << vkd3d_swizzle_get_component(src_param->swizzle, 0);
element_idx = shader_signature_find_element_for_reg(signature, reg_idx, write_mask);
e = &signature->elements[element_idx];
if ((e->register_count > 1 || vsir_sysval_semantic_is_tess_factor(e->sysval_semantic)))
id_idx = shader_register_normalise_arrayed_addressing(reg, id_idx, e->register_index);
reg->idx[id_idx].offset = element_idx;
reg->idx_count = id_idx + 1;
if ((component_idx = vkd3d_write_mask_get_component_idx(e->mask)))
{
for (i = 0; i < VKD3D_VEC4_SIZE; ++i)
if (vkd3d_swizzle_get_component(src_param->swizzle, i))
src_param->swizzle -= component_idx << VKD3D_SHADER_SWIZZLE_SHIFT(i);
}
}
static void shader_instruction_normalise_io_params(struct vkd3d_shader_instruction *ins,
struct io_normaliser *normaliser)
{
struct vkd3d_shader_register *reg;
unsigned int i;
switch (ins->handler_idx)
{
case VKD3DSIH_DCL_INPUT:
if (normaliser->shader_type == VKD3D_SHADER_TYPE_HULL)
{
reg = &ins->declaration.dst.reg;
if (reg->type == VKD3DSPR_OUTCONTROLPOINT)
normaliser->use_vocp = true;
/* We don't need to keep OUTCONTROLPOINT or PATCHCONST input declarations since their
* equivalents were declared earlier, but INCONTROLPOINT may be the first occurrence. */
if (reg->type == VKD3DSPR_OUTCONTROLPOINT || reg->type == VKD3DSPR_PATCHCONST)
vkd3d_shader_instruction_make_nop(ins);
else if (reg->type == VKD3DSPR_INCONTROLPOINT)
reg->type = VKD3DSPR_INPUT;
}
/* fall through */
case VKD3DSIH_DCL_INPUT_PS:
case VKD3DSIH_DCL_OUTPUT:
if (!shader_dst_param_io_normalise(&ins->declaration.dst, true, normaliser))
vkd3d_shader_instruction_make_nop(ins);
break;
case VKD3DSIH_DCL_INPUT_SGV:
case VKD3DSIH_DCL_INPUT_SIV:
case VKD3DSIH_DCL_INPUT_PS_SGV:
case VKD3DSIH_DCL_INPUT_PS_SIV:
case VKD3DSIH_DCL_OUTPUT_SIV:
if (!shader_dst_param_io_normalise(&ins->declaration.register_semantic.reg, true, normaliser))
vkd3d_shader_instruction_make_nop(ins);
break;
case VKD3DSIH_HS_CONTROL_POINT_PHASE:
case VKD3DSIH_HS_FORK_PHASE:
case VKD3DSIH_HS_JOIN_PHASE:
normaliser->phase = ins->handler_idx;
memset(normaliser->input_dcl_params, 0, sizeof(normaliser->input_dcl_params));
memset(normaliser->output_dcl_params, 0, sizeof(normaliser->output_dcl_params));
memset(normaliser->pc_dcl_params, 0, sizeof(normaliser->pc_dcl_params));
break;
default:
if (shader_instruction_is_dcl(ins))
break;
for (i = 0; i < ins->dst_count; ++i)
shader_dst_param_io_normalise((struct vkd3d_shader_dst_param *)&ins->dst[i], false, normaliser);
for (i = 0; i < ins->src_count; ++i)
shader_src_param_io_normalise((struct vkd3d_shader_src_param *)&ins->src[i], normaliser);
break;
}
}
static enum vkd3d_result shader_normalise_io_registers(struct vkd3d_shader_parser *parser)
{
struct io_normaliser normaliser = {parser->instructions};
struct vkd3d_shader_instruction *ins;
bool has_control_point_phase;
unsigned int i, j;
normaliser.phase = VKD3DSIH_INVALID;
normaliser.shader_type = parser->shader_version.type;
normaliser.input_signature = &parser->shader_desc.input_signature;
normaliser.output_signature = &parser->shader_desc.output_signature;
normaliser.patch_constant_signature = &parser->shader_desc.patch_constant_signature;
for (i = 0, has_control_point_phase = false; i < parser->instructions.count; ++i)
{
ins = &parser->instructions.elements[i];
switch (ins->handler_idx)
{
case VKD3DSIH_DCL_OUTPUT_CONTROL_POINT_COUNT:
normaliser.output_control_point_count = ins->declaration.count;
break;
case VKD3DSIH_DCL_INDEX_RANGE:
io_normaliser_add_index_range(&normaliser, ins);
vkd3d_shader_instruction_make_nop(ins);
break;
case VKD3DSIH_HS_CONTROL_POINT_PHASE:
has_control_point_phase = true;
/* fall through */
case VKD3DSIH_HS_FORK_PHASE:
case VKD3DSIH_HS_JOIN_PHASE:
normaliser.phase = ins->handler_idx;
break;
default:
break;
}
}
if (normaliser.shader_type == VKD3D_SHADER_TYPE_HULL && !has_control_point_phase)
{
/* Inputs and outputs must match for the default phase, so merge ranges must match too. */
for (i = 0; i < MAX_REG_OUTPUT; ++i)
{
for (j = 0; j < VKD3D_VEC4_SIZE; ++j)
{
if (!normaliser.input_range_map[i][j] && normaliser.output_range_map[i][j])
normaliser.input_range_map[i][j] = normaliser.output_range_map[i][j];
else if (normaliser.input_range_map[i][j] && !normaliser.output_range_map[i][j])
normaliser.output_range_map[i][j] = normaliser.input_range_map[i][j];
else assert(normaliser.input_range_map[i][j] == normaliser.output_range_map[i][j]);
}
}
}
if (!shader_signature_merge(&parser->shader_desc.input_signature, normaliser.input_range_map, false)
|| !shader_signature_merge(&parser->shader_desc.output_signature, normaliser.output_range_map, false)
|| !shader_signature_merge(&parser->shader_desc.patch_constant_signature, normaliser.pc_range_map, true))
{
parser->instructions = normaliser.instructions;
return VKD3D_ERROR_OUT_OF_MEMORY;
}
normaliser.phase = VKD3DSIH_INVALID;
for (i = 0; i < normaliser.instructions.count; ++i)
shader_instruction_normalise_io_params(&normaliser.instructions.elements[i], &normaliser);
parser->instructions = normaliser.instructions;
parser->shader_desc.use_vocp = normaliser.use_vocp;
return VKD3D_OK;
}
struct flat_constant_def
{
enum vkd3d_shader_d3dbc_constant_register set;
uint32_t index;
uint32_t value[4];
};
struct flat_constants_normaliser
{
struct vkd3d_shader_parser *parser;
struct flat_constant_def *defs;
size_t def_count, defs_capacity;
};
static bool get_flat_constant_register_type(const struct vkd3d_shader_register *reg,
enum vkd3d_shader_d3dbc_constant_register *set, uint32_t *index)
{
static const struct
{
enum vkd3d_shader_register_type type;
enum vkd3d_shader_d3dbc_constant_register set;
uint32_t offset;
}
regs[] =
{
{VKD3DSPR_CONST, VKD3D_SHADER_D3DBC_FLOAT_CONSTANT_REGISTER, 0},
{VKD3DSPR_CONST2, VKD3D_SHADER_D3DBC_FLOAT_CONSTANT_REGISTER, 2048},
{VKD3DSPR_CONST3, VKD3D_SHADER_D3DBC_FLOAT_CONSTANT_REGISTER, 4096},
{VKD3DSPR_CONST4, VKD3D_SHADER_D3DBC_FLOAT_CONSTANT_REGISTER, 6144},
{VKD3DSPR_CONSTINT, VKD3D_SHADER_D3DBC_INT_CONSTANT_REGISTER, 0},
{VKD3DSPR_CONSTBOOL, VKD3D_SHADER_D3DBC_BOOL_CONSTANT_REGISTER, 0},
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(regs); ++i)
{
if (reg->type == regs[i].type)
{
if (reg->idx[0].rel_addr)
{
FIXME("Unhandled relative address.\n");
return false;
}
*set = regs[i].set;
*index = regs[i].offset + reg->idx[0].offset;
return true;
}
}
return false;
}
static void shader_register_normalise_flat_constants(struct vkd3d_shader_src_param *param,
const struct flat_constants_normaliser *normaliser)
{
enum vkd3d_shader_d3dbc_constant_register set;
uint32_t index;
size_t i, j;
if (!get_flat_constant_register_type(&param->reg, &set, &index))
return;
for (i = 0; i < normaliser->def_count; ++i)
{
if (normaliser->defs[i].set == set && normaliser->defs[i].index == index)
{
param->reg.type = VKD3DSPR_IMMCONST;
param->reg.idx_count = 0;
param->reg.dimension = VSIR_DIMENSION_VEC4;
for (j = 0; j < 4; ++j)
param->reg.u.immconst_uint[j] = normaliser->defs[i].value[j];
return;
}
}
param->reg.type = VKD3DSPR_CONSTBUFFER;
param->reg.idx[0].offset = set; /* register ID */
param->reg.idx[1].offset = set; /* register index */
param->reg.idx[2].offset = index; /* buffer index */
param->reg.idx_count = 3;
}
static enum vkd3d_result instruction_array_normalise_flat_constants(struct vkd3d_shader_parser *parser)
{
struct flat_constants_normaliser normaliser = {.parser = parser};
unsigned int i, j;
for (i = 0; i < parser->instructions.count; ++i)
{
struct vkd3d_shader_instruction *ins = &parser->instructions.elements[i];
if (ins->handler_idx == VKD3DSIH_DEF || ins->handler_idx == VKD3DSIH_DEFI || ins->handler_idx == VKD3DSIH_DEFB)
{
struct flat_constant_def *def;
if (!vkd3d_array_reserve((void **)&normaliser.defs, &normaliser.defs_capacity,
normaliser.def_count + 1, sizeof(*normaliser.defs)))
{
vkd3d_free(normaliser.defs);
return VKD3D_ERROR_OUT_OF_MEMORY;
}
def = &normaliser.defs[normaliser.def_count++];
get_flat_constant_register_type((struct vkd3d_shader_register *)&ins->dst[0].reg, &def->set, &def->index);
for (j = 0; j < 4; ++j)
def->value[j] = ins->src[0].reg.u.immconst_uint[j];
vkd3d_shader_instruction_make_nop(ins);
}
else
{
for (j = 0; j < ins->src_count; ++j)
shader_register_normalise_flat_constants((struct vkd3d_shader_src_param *)&ins->src[j], &normaliser);
}
}
vkd3d_free(normaliser.defs);
return VKD3D_OK;
}
static void remove_dead_code(struct vkd3d_shader_parser *parser)
{
size_t i, depth = 0;
bool dead = false;
for (i = 0; i < parser->instructions.count; ++i)
{
struct vkd3d_shader_instruction *ins = &parser->instructions.elements[i];
switch (ins->handler_idx)
{
case VKD3DSIH_IF:
case VKD3DSIH_LOOP:
case VKD3DSIH_SWITCH:
if (dead)
{
vkd3d_shader_instruction_make_nop(ins);
++depth;
}
break;
case VKD3DSIH_ENDIF:
case VKD3DSIH_ENDLOOP:
case VKD3DSIH_ENDSWITCH:
case VKD3DSIH_ELSE:
if (dead)
{
if (depth > 0)
{
vkd3d_shader_instruction_make_nop(ins);
if (ins->handler_idx != VKD3DSIH_ELSE)
--depth;
}
else
{
dead = false;
}
}
break;
/* `depth' is counted with respect to where the dead code
* segment began. So it starts at zero and it signals the
* termination of the dead code segment when it would
* become negative. */
case VKD3DSIH_BREAK:
case VKD3DSIH_RET:
case VKD3DSIH_CONTINUE:
if (dead)
{
vkd3d_shader_instruction_make_nop(ins);
}
else
{
dead = true;
depth = 0;
}
break;
/* If `case' or `default' appears at zero depth, it means
* that they are a possible target for the corresponding
* switch, so the code is live again. */
case VKD3DSIH_CASE:
case VKD3DSIH_DEFAULT:
if (dead)
{
if (depth == 0)
dead = false;
else
vkd3d_shader_instruction_make_nop(ins);
}
break;
/* Phase instructions can only appear in hull shaders and
* outside of any block. When a phase returns, control is
* moved to the following phase, so they make code live
* again. */
case VKD3DSIH_HS_CONTROL_POINT_PHASE:
case VKD3DSIH_HS_FORK_PHASE:
case VKD3DSIH_HS_JOIN_PHASE:
dead = false;
break;
default:
if (dead)
vkd3d_shader_instruction_make_nop(ins);
break;
}
}
}
static enum vkd3d_result normalise_combined_samplers(struct vkd3d_shader_parser *parser)
{
unsigned int i;
for (i = 0; i < parser->instructions.count; ++i)
{
struct vkd3d_shader_instruction *ins = &parser->instructions.elements[i];
struct vkd3d_shader_src_param *srcs;
switch (ins->handler_idx)
{
case VKD3DSIH_TEX:
if (!(srcs = shader_src_param_allocator_get(&parser->instructions.src_params, 3)))
return VKD3D_ERROR_OUT_OF_MEMORY;
memset(srcs, 0, sizeof(*srcs) * 3);
ins->handler_idx = VKD3DSIH_SAMPLE;
srcs[0] = ins->src[0];
srcs[1].reg.type = VKD3DSPR_RESOURCE;
srcs[1].reg.idx[0] = ins->src[1].reg.idx[0];
srcs[1].reg.idx[1] = ins->src[1].reg.idx[0];
srcs[1].reg.idx_count = 2;
srcs[1].reg.data_type = VKD3D_DATA_RESOURCE;
srcs[1].swizzle = VKD3D_SHADER_NO_SWIZZLE;
srcs[2].reg.type = VKD3DSPR_SAMPLER;
srcs[2].reg.idx[0] = ins->src[1].reg.idx[0];
srcs[2].reg.idx[1] = ins->src[1].reg.idx[0];
srcs[2].reg.idx_count = 2;
srcs[2].reg.data_type = VKD3D_DATA_SAMPLER;
ins->src = srcs;
ins->src_count = 3;
break;
case VKD3DSIH_TEXBEM:
case VKD3DSIH_TEXBEML:
case VKD3DSIH_TEXCOORD:
case VKD3DSIH_TEXDEPTH:
case VKD3DSIH_TEXDP3:
case VKD3DSIH_TEXDP3TEX:
case VKD3DSIH_TEXLDD:
case VKD3DSIH_TEXLDL:
case VKD3DSIH_TEXM3x2PAD:
case VKD3DSIH_TEXM3x2TEX:
case VKD3DSIH_TEXM3x3DIFF:
case VKD3DSIH_TEXM3x3PAD:
case VKD3DSIH_TEXM3x3SPEC:
case VKD3DSIH_TEXM3x3TEX:
case VKD3DSIH_TEXM3x3VSPEC:
case VKD3DSIH_TEXREG2AR:
case VKD3DSIH_TEXREG2GB:
case VKD3DSIH_TEXREG2RGB:
vkd3d_shader_parser_error(parser, VKD3D_SHADER_ERROR_VSIR_NOT_IMPLEMENTED,
"Aborting due to not yet implemented feature: "
"Combined sampler instruction %#x.", ins->handler_idx);
return VKD3D_ERROR_NOT_IMPLEMENTED;
default:
break;
}
}
return VKD3D_OK;
}
enum vkd3d_result vkd3d_shader_normalise(struct vkd3d_shader_parser *parser,
const struct vkd3d_shader_compile_info *compile_info)
{
struct vkd3d_shader_instruction_array *instructions = &parser->instructions;
enum vkd3d_result result = VKD3D_OK;
if (parser->shader_desc.is_dxil)
return result;
if (parser->shader_version.type != VKD3D_SHADER_TYPE_PIXEL
&& (result = remap_output_signature(parser, compile_info)) < 0)
return result;
if (parser->shader_version.type == VKD3D_SHADER_TYPE_HULL
&& (result = instruction_array_flatten_hull_shader_phases(instructions)) >= 0)
{
result = instruction_array_normalise_hull_shader_control_point_io(instructions,
&parser->shader_desc.input_signature);
}
if (result >= 0)
result = shader_normalise_io_registers(parser);
if (result >= 0)
result = instruction_array_normalise_flat_constants(parser);
if (result >= 0)
remove_dead_code(parser);
if (result >= 0)
result = normalise_combined_samplers(parser);
if (result >= 0 && TRACE_ON())
vkd3d_shader_trace(instructions, &parser->shader_version);
if (result >= 0 && !parser->failed)
vsir_validate(parser);
if (result >= 0 && parser->failed)
result = VKD3D_ERROR_INVALID_SHADER;
return result;
}
struct validation_context
{
struct vkd3d_shader_parser *parser;
size_t instruction_idx;
bool dcl_temps_found;
enum vkd3d_shader_opcode *blocks;
size_t depth;
size_t blocks_capacity;
};
static void VKD3D_PRINTF_FUNC(3, 4) validator_error(struct validation_context *ctx,
enum vkd3d_shader_error error, const char *format, ...)
{
struct vkd3d_string_buffer buf;
va_list args;
vkd3d_string_buffer_init(&buf);
va_start(args, format);
vkd3d_string_buffer_vprintf(&buf, format, args);
va_end(args);
vkd3d_shader_parser_error(ctx->parser, error, "instruction %zu: %s", ctx->instruction_idx + 1, buf.buffer);
ERR("VSIR validation error: instruction %zu: %s\n", ctx->instruction_idx + 1, buf.buffer);
vkd3d_string_buffer_cleanup(&buf);
}
static void vsir_validate_register(struct validation_context *ctx,
const struct vkd3d_shader_register *reg)
{
if (reg->type >= VKD3DSPR_COUNT)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_REGISTER_TYPE, "Invalid register type %#x.",
reg->type);
if (reg->precision >= VKD3D_SHADER_REGISTER_PRECISION_COUNT)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_PRECISION, "Invalid register precision %#x.",
reg->precision);
if (reg->data_type >= VKD3D_DATA_COUNT)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_DATA_TYPE, "Invalid register data type %#x.",
reg->data_type);
if (reg->dimension >= VSIR_DIMENSION_COUNT)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_DIMENSION, "Invalid register dimension %#x.",
reg->dimension);
if (reg->idx_count > ARRAY_SIZE(reg->idx))
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX_COUNT, "Invalid register index count %u.",
reg->idx_count);
switch (reg->type)
{
case VKD3DSPR_TEMP:
if (reg->idx_count != 1)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX_COUNT, "Invalid index count %u for a TEMP register.",
reg->idx_count);
if (reg->idx_count >= 1 && reg->idx[0].rel_addr)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX, "Non-NULL relative address for a TEMP register.");
if (reg->idx_count >= 1 && reg->idx[0].offset >= ctx->parser->shader_desc.temp_count)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INDEX, "TEMP register index %u exceeds the declared count %u.",
reg->idx[0].offset, ctx->parser->shader_desc.temp_count);
break;
default:
break;
}
}
static void vsir_validate_dst_param(struct validation_context *ctx,
const struct vkd3d_shader_dst_param *dst)
{
vsir_validate_register(ctx, &dst->reg);
if (dst->write_mask & ~VKD3DSP_WRITEMASK_ALL)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_WRITE_MASK, "Destination has invalid write mask %#x.",
dst->write_mask);
if (dst->modifiers & ~VKD3DSPDM_MASK)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_MODIFIERS, "Destination has invalid modifiers %#x.",
dst->modifiers);
switch (dst->shift)
{
case 0:
case 1:
case 2:
case 3:
case 13:
case 14:
case 15:
break;
default:
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_SHIFT, "Destination has invalid shift %#x.",
dst->shift);
}
}
static void vsir_validate_src_param(struct validation_context *ctx,
const struct vkd3d_shader_src_param *src)
{
vsir_validate_register(ctx, &src->reg);
if (src->swizzle & ~0x03030303u)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_SWIZZLE, "Source has invalid swizzle %#x.",
src->swizzle);
if (src->modifiers >= VKD3DSPSM_COUNT)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_MODIFIERS, "Source has invalid modifiers %#x.",
src->modifiers);
}
static void vsir_validate_dst_count(struct validation_context *ctx,
const struct vkd3d_shader_instruction *instruction, unsigned int count)
{
if (instruction->dst_count != count)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_DEST_COUNT,
"Invalid destination count %u for an instruction of type %#x, expected %u.",
instruction->dst_count, instruction->handler_idx, count);
}
static void vsir_validate_src_count(struct validation_context *ctx,
const struct vkd3d_shader_instruction *instruction, unsigned int count)
{
if (instruction->src_count != count)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_SOURCE_COUNT,
"Invalid source count %u for an instruction of type %#x, expected %u.",
instruction->src_count, instruction->handler_idx, count);
}
static void vsir_validate_instruction(struct validation_context *ctx)
{
const struct vkd3d_shader_instruction *instruction = &ctx->parser->instructions.elements[ctx->instruction_idx];
size_t i;
ctx->parser->location = instruction->location;
for (i = 0; i < instruction->dst_count; ++i)
vsir_validate_dst_param(ctx, &instruction->dst[i]);
for (i = 0; i < instruction->src_count; ++i)
vsir_validate_src_param(ctx, &instruction->src[i]);
if (instruction->handler_idx >= VKD3DSIH_INVALID)
{
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_HANDLER, "Invalid instruction handler %#x.",
instruction->handler_idx);
}
switch (instruction->handler_idx)
{
case VKD3DSIH_DCL_TEMPS:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
/* TODO Check that each phase in a hull shader has at most
* one occurrence. */
if (ctx->dcl_temps_found && ctx->parser->shader_version.type != VKD3D_SHADER_TYPE_HULL)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_DUPLICATE_DCL_TEMPS, "Duplicate DCL_TEMPS instruction.");
ctx->dcl_temps_found = true;
if (instruction->declaration.count != ctx->parser->shader_desc.temp_count &&
ctx->parser->shader_version.type != VKD3D_SHADER_TYPE_HULL)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_DCL_TEMPS, "Invalid DCL_TEMPS count %u, expected %u.",
instruction->declaration.count, ctx->parser->shader_desc.temp_count);
break;
case VKD3DSIH_IF:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 1);
if (!vkd3d_array_reserve((void **)&ctx->blocks, &ctx->blocks_capacity, ctx->depth + 1, sizeof(*ctx->blocks)))
return;
ctx->blocks[ctx->depth++] = instruction->handler_idx;
break;
case VKD3DSIH_ELSE:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
if (ctx->depth == 0 || ctx->blocks[ctx->depth - 1] != VKD3DSIH_IF)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INSTRUCTION_NESTING, "ELSE instruction doesn't terminate IF block.");
else
ctx->blocks[ctx->depth - 1] = instruction->handler_idx;
break;
case VKD3DSIH_ENDIF:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
if (ctx->depth == 0 || (ctx->blocks[ctx->depth - 1] != VKD3DSIH_IF && ctx->blocks[ctx->depth - 1] != VKD3DSIH_ELSE))
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INSTRUCTION_NESTING, "ENDIF instruction doesn't terminate IF/ELSE block.");
else
--ctx->depth;
break;
case VKD3DSIH_LOOP:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
if (!vkd3d_array_reserve((void **)&ctx->blocks, &ctx->blocks_capacity, ctx->depth + 1, sizeof(*ctx->blocks)))
return;
ctx->blocks[ctx->depth++] = instruction->handler_idx;
break;
case VKD3DSIH_ENDLOOP:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
if (ctx->depth == 0 || ctx->blocks[ctx->depth - 1] != VKD3DSIH_LOOP)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INSTRUCTION_NESTING, "ENDLOOP instruction doesn't terminate LOOP block.");
else
--ctx->depth;
break;
case VKD3DSIH_REP:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 1);
if (!vkd3d_array_reserve((void **)&ctx->blocks, &ctx->blocks_capacity, ctx->depth + 1, sizeof(*ctx->blocks)))
return;
ctx->blocks[ctx->depth++] = instruction->handler_idx;
break;
case VKD3DSIH_ENDREP:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
if (ctx->depth == 0 || ctx->blocks[ctx->depth - 1] != VKD3DSIH_REP)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INSTRUCTION_NESTING, "ENDREP instruction doesn't terminate REP block.");
else
--ctx->depth;
break;
case VKD3DSIH_SWITCH:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 1);
if (!vkd3d_array_reserve((void **)&ctx->blocks, &ctx->blocks_capacity, ctx->depth + 1, sizeof(*ctx->blocks)))
return;
ctx->blocks[ctx->depth++] = instruction->handler_idx;
break;
case VKD3DSIH_ENDSWITCH:
vsir_validate_dst_count(ctx, instruction, 0);
vsir_validate_src_count(ctx, instruction, 0);
if (ctx->depth == 0 || ctx->blocks[ctx->depth - 1] != VKD3DSIH_SWITCH)
validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INSTRUCTION_NESTING, "ENDSWITCH instruction doesn't terminate SWITCH block.");
else
--ctx->depth;
break;
default:
break;
}
}
void vsir_validate(struct vkd3d_shader_parser *parser)
{
struct validation_context ctx = { .parser = parser };
if (!(parser->config_flags & VKD3D_SHADER_CONFIG_FLAG_FORCE_VALIDATION))
return;
for (ctx.instruction_idx = 0; ctx.instruction_idx < parser->instructions.count; ++ctx.instruction_idx)
vsir_validate_instruction(&ctx);
if (ctx.depth != 0)
validator_error(&ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_INSTRUCTION_NESTING, "%zu nested blocks were not closed.", ctx.depth);
free(ctx.blocks);
}
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