wine/vkd3d
0
0
Fork 0
mirror of https://gitlab.winehq.org/wine/vkd3d.git synced 2025-01-28 13:05:02 -08:00
Code Issues Packages Projects Releases Wiki Activity

vkd3d-shader/hlsl: Handle round() for SM1.

Browse Source
This commit is contained in:
Nikolay Sivov 2023-03-16 21:14:12 +01:00 committed by Alexandre Julliard
parent c87a292f98
commit eb71c5f20d
Notes: Alexandre Julliard 2023-04-03 22:09:22 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/128
1 changed files with 46 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
libs/vkd3d-shader/hlsl_codegen.c
View File

@ -1848,6 +1848,51 @@ static bool lower_abs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *co
return true;
}
/* Lower ROUND using FRC, ROUND(x) -> ((x + 0.5) - FRC(x + 0.5)). */
static bool lower_round(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
struct hlsl_ir_node *arg, *neg, *sum, *frc, *replacement;
struct hlsl_type *type = instr->data_type;
unsigned int i, component_count;
struct hlsl_ir_constant *half;
struct hlsl_ir_expr *expr;
if (instr->type != HLSL_IR_EXPR)
return false;
expr = hlsl_ir_expr(instr);
arg = expr->operands[0].node;
if (expr->op != HLSL_OP1_ROUND)
return false;
if (!(half = hlsl_new_constant(ctx, type, &expr->node.loc)))
return false;
component_count = hlsl_type_component_count(type);
for (i = 0; i < component_count; ++i)
half->value[i].f = 0.5f;
list_add_before(&instr->entry, &half->node.entry);
if (!(sum = hlsl_new_binary_expr(ctx, HLSL_OP2_ADD, arg, &half->node)))
return false;
list_add_before(&instr->entry, &sum->entry);
if (!(frc = hlsl_new_unary_expr(ctx, HLSL_OP1_FRACT, sum, instr->loc)))
return false;
list_add_before(&instr->entry, &frc->entry);
if (!(neg = hlsl_new_unary_expr(ctx, HLSL_OP1_NEG, frc, instr->loc)))
return false;
list_add_before(&instr->entry, &neg->entry);
if (!(replacement = hlsl_new_binary_expr(ctx, HLSL_OP2_ADD, sum, neg)))
return false;
list_add_before(&instr->entry, &replacement->entry);
hlsl_replace_node(instr, replacement);
return true;
}
static bool lower_casts_to_bool(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
struct hlsl_type *type = instr->data_type, *arg_type;
@ -3305,6 +3350,7 @@ int hlsl_emit_bytecode(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry
transform_ir(ctx, lower_division, body, NULL);
transform_ir(ctx, lower_sqrt, body, NULL);
transform_ir(ctx, lower_dot, body, NULL);
transform_ir(ctx, lower_round, body, NULL);
}
if (profile->major_version < 2)