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vkd3d-shader/hlsl: Implement the rcp() intrinisic.

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SM1 already has the RCP opcode implemented; SM4 implementation is in the
next commit.
This commit is contained in:
Petrichor Park
2024-04-29 12:46:15 -05:00
committed by Henri Verbeet
parent 3a49852075
commit b3f0cd5788
Notes: Henri Verbeet 2024-07-11 17:16:15 +02:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/822
2 changed files with 25 additions and 13 deletions
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12
libs/vkd3d-shader/hlsl.y
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@@ -4065,6 +4065,17 @@ static bool intrinsic_radians(struct hlsl_ctx *ctx,
return !!add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_MUL, arg, rad, loc);
}
static bool intrinsic_rcp(struct hlsl_ctx *ctx,
const struct parse_initializer *params, const struct vkd3d_shader_location *loc)
{
struct hlsl_ir_node *arg;
if (!(arg = intrinsic_float_convert_arg(ctx, params, params->args[0], loc)))
return false;
return !!add_unary_arithmetic_expr(ctx, params->instrs, HLSL_OP1_RCP, arg, loc);
}
static bool intrinsic_reflect(struct hlsl_ctx *ctx,
const struct parse_initializer *params, const struct vkd3d_shader_location *loc)
{
@@ -4760,6 +4771,7 @@ intrinsic_functions[] =
{"normalize", 1, true, intrinsic_normalize},
{"pow", 2, true, intrinsic_pow},
{"radians", 1, true, intrinsic_radians},
{"rcp", 1, true, intrinsic_rcp},
{"reflect", 2, true, intrinsic_reflect},
{"refract", 3, true, intrinsic_refract},
{"round", 1, true, intrinsic_round},