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vkd3d-shader/hlsl: Parse lerp() intrinsic.

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Signed-off-by: Giovanni Mascellani <gmascellani@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Giovanni Mascellani 2022-06-24 09:41:30 +02:00 committed by Alexandre Julliard
parent bb32ffad18
commit 7682da58a8
2 changed files with 23 additions and 2 deletions
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21
libs/vkd3d-shader/hlsl.y
View File

@ -2109,6 +2109,26 @@ static bool intrinsic_ldexp(struct hlsl_ctx *ctx,
return !!add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_MUL, params->args[0], arg, loc);
}
static bool intrinsic_lerp(struct hlsl_ctx *ctx,
const struct parse_initializer *params, const struct vkd3d_shader_location *loc)
{
struct hlsl_ir_node *arg, *neg, *add, *mul;
if (!(arg = intrinsic_float_convert_arg(ctx, params, params->args[0], loc)))
return false;
if (!(neg = add_unary_arithmetic_expr(ctx, params->instrs, HLSL_OP1_NEG, arg, loc)))
return false;
if (!(add = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_ADD, params->args[1], neg, loc)))
return false;
if (!(mul = add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_MUL, params->args[2], add, loc)))
return false;
return !!add_binary_arithmetic_expr(ctx, params->instrs, HLSL_OP2_ADD, arg, mul, loc);
}
static bool intrinsic_max(struct hlsl_ctx *ctx,
const struct parse_initializer *params, const struct vkd3d_shader_location *loc)
{
@ -2298,6 +2318,7 @@ intrinsic_functions[] =
{"dot", 2, true, intrinsic_dot},
{"floor", 1, true, intrinsic_floor},
{"ldexp", 2, true, intrinsic_ldexp},
{"lerp", 3, true, intrinsic_lerp},
{"max", 2, true, intrinsic_max},
{"min", 2, true, intrinsic_min},
{"mul", 2, true, intrinsic_mul},

4
tests/hlsl-lerp.shader_test
View File

@ -12,7 +12,7 @@ float4 main() : SV_TARGET
uniform 0 float4 2.0 3.0 4.0 5.0
uniform 4 float4 0.0 -10.0 10.0 100.0
uniform 8 float4 0.0 1.0 -1.0 0.75
todo draw quad
draw quad
probe all rgba (2.0, -10.0, -2.0, 76.25)
[require]
@ -32,5 +32,5 @@ float4 main() : SV_TARGET
uniform 0 int4 2 3 4 0
uniform 4 int4 0 -10 10 1000000
uniform 8 int4 0 1 -1 1000000
todo draw quad
draw quad
probe all rgba (2.0, -10.0, -2.0, 1e12)