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vkd3d-shader: Add support for floor() on SM1-3.

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Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov 2023-10-17 23:26:04 +02:00 committed by Alexandre Julliard
parent aaef82e680
commit 9a70ae5b6a
Notes: Alexandre Julliard 2023-11-08 23:02:33 +01:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Francisco Casas (@fcasas)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/417
1 changed files with 30 additions and 0 deletions
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30
libs/vkd3d-shader/hlsl_codegen.c
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@ -2714,6 +2714,35 @@ static bool lower_ceil(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, struct
return true;
}
/* Lower FLOOR to FRC */
static bool lower_floor(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, struct hlsl_block *block)
{
struct hlsl_ir_node *arg, *neg, *sum, *frc;
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_FLOOR)
return false;
if (!(frc = hlsl_new_unary_expr(ctx, HLSL_OP1_FRACT, arg, &instr->loc)))
return false;
hlsl_block_add_instr(block, frc);
if (!(neg = hlsl_new_unary_expr(ctx, HLSL_OP1_NEG, frc, &instr->loc)))
return false;
hlsl_block_add_instr(block, neg);
if (!(sum = hlsl_new_binary_expr(ctx, HLSL_OP2_ADD, neg, arg)))
return false;
hlsl_block_add_instr(block, sum);
return true;
}
/* Use 'movc' for the ternary operator. */
static bool lower_ternary(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, struct hlsl_block *block)
{
@ -4881,6 +4910,7 @@ int hlsl_emit_bytecode(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry
lower_ir(ctx, lower_dot, body);
lower_ir(ctx, lower_round, body);
lower_ir(ctx, lower_ceil, body);
lower_ir(ctx, lower_floor, body);
}
if (profile->major_version < 2)