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vkd3d-shader/hlsl: Parse the pow() intrinsic.

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Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Giovanni Mascellani <gmascellani@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura
2021-09-20 14:20:56 +02:00
committed by Alexandre Julliard
parent 96fd5f74f9
commit 2461ad601b
5 changed files with 35 additions and 2 deletions
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23
libs/vkd3d-shader/hlsl.y
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@@ -1585,6 +1585,28 @@ static bool intrinsic_max(struct hlsl_ctx *ctx,
return !!add_expr(ctx, params->instrs, HLSL_OP2_MAX, args, &loc);
}
static bool intrinsic_pow(struct hlsl_ctx *ctx,
const struct parse_initializer *params, struct vkd3d_shader_location loc)
{
struct hlsl_ir_node *args[3] = {0};
struct hlsl_ir_node *log, *exp;
struct hlsl_ir_expr *mul;
if (!(log = hlsl_new_unary_expr(ctx, HLSL_OP1_LOG2, params->args[0], loc)))
return false;
list_add_tail(params->instrs, &log->entry);
args[0] = params->args[1];
args[1] = log;
if (!(mul = add_expr(ctx, params->instrs, HLSL_OP2_MUL, args, &loc)))
return false;
if (!(exp = hlsl_new_unary_expr(ctx, HLSL_OP1_EXP2, &mul->node, loc)))
return false;
list_add_tail(params->instrs, &exp->entry);
return true;
}
static bool intrinsic_saturate(struct hlsl_ctx *ctx,
const struct parse_initializer *params, struct vkd3d_shader_location loc)
{
@@ -1605,6 +1627,7 @@ intrinsic_functions[] =
{"abs", 1, true, intrinsic_abs},
{"clamp", 3, true, intrinsic_clamp},
{"max", 2, true, intrinsic_max},
{"pow", 2, true, intrinsic_pow},
{"saturate", 1, true, intrinsic_saturate},
};