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vkd3d-shader/hlsl: Add a stub for the noise() intrinsic.

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This function is used in tx_1_0 code, but is also supported in
fx_2_0 and fx_4_0 expressions.

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov
2025-06-11 10:10:33 +02:00
committed by Henri Verbeet
parent 93e1a8c784
commit f135f7fe07
Notes: Henri Verbeet 2025-06-19 20:52:05 +02:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1564
5 changed files with 59 additions and 0 deletions
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23
libs/vkd3d-shader/hlsl.y
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@@ -4294,6 +4294,28 @@ static bool intrinsic_mul(struct hlsl_ctx *ctx,
return true;
}
static bool intrinsic_noise(struct hlsl_ctx *ctx,
const struct parse_initializer *params, const struct vkd3d_shader_location *loc)
{
struct hlsl_type *type = params->args[0]->data_type, *ret_type;
struct hlsl_ir_node *args[HLSL_MAX_OPERANDS] = {0};
type = params->args[0]->data_type;
if (type->class == HLSL_CLASS_MATRIX)
{
struct vkd3d_string_buffer *string;
if ((string = hlsl_type_to_string(ctx, type)))
hlsl_error(ctx, loc, VKD3D_SHADER_ERROR_HLSL_INVALID_TYPE,
"Wrong argument type for noise(): expected vector or scalar, but got '%s'.", string->buffer);
hlsl_release_string_buffer(ctx, string);
}
args[0] = intrinsic_float_convert_arg(ctx, params, params->args[0], loc);
ret_type = hlsl_get_scalar_type(ctx, args[0]->data_type->e.numeric.type);
return !!add_expr(ctx, params->instrs, HLSL_OP1_NOISE, args, ret_type, loc);
}
static bool intrinsic_normalize(struct hlsl_ctx *ctx,
const struct parse_initializer *params, const struct vkd3d_shader_location *loc)
{
@@ -5258,6 +5280,7 @@ intrinsic_functions[] =
{"min", 2, true, intrinsic_min},
{"modf", 2, true, intrinsic_modf},
{"mul", 2, true, intrinsic_mul},
{"noise", 1, true, intrinsic_noise},
{"normalize", 1, true, intrinsic_normalize},
{"pow", 2, true, intrinsic_pow},
{"radians", 1, true, intrinsic_radians},