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vkd3d-shader/hlsl: Support frac() intrinsic.

Browse Source 
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=34242
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov 2023-01-24 10:57:18 +03:00 committed by Alexandre Julliard
parent 3db509383b
commit 3e6fccdbf9
Notes: Alexandre Julliard 2023-01-25 22:43:33 +01:00 
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/68
4 changed files with 29 additions and 0 deletions
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1
Makefile.am
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@ -60,6 +60,7 @@ vkd3d_shader_tests = \
tests/compute.shader_test \
tests/conditional.shader_test \
tests/floor.shader_test \
tests/frac.shader_test \
tests/hlsl-array-dimension.shader_test \
tests/hlsl-attributes.shader_test \
tests/hlsl-bool-cast.shader_test \

12
libs/vkd3d-shader/hlsl.y
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@ -2502,6 +2502,17 @@ static bool intrinsic_floor(struct hlsl_ctx *ctx,
return !!add_unary_arithmetic_expr(ctx, params->instrs, HLSL_OP1_FLOOR, arg, loc);
}
static bool intrinsic_frac(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_FRACT, arg, loc);
}
static bool intrinsic_ldexp(struct hlsl_ctx *ctx,
const struct parse_initializer *params, const struct vkd3d_shader_location *loc)
{
@ -2922,6 +2933,7 @@ intrinsic_functions[] =
{"cross", 2, true, intrinsic_cross},
{"dot", 2, true, intrinsic_dot},
{"floor", 1, true, intrinsic_floor},
{"frac", 1, true, intrinsic_frac},
{"ldexp", 2, true, intrinsic_ldexp},
{"length", 1, true, intrinsic_length},
{"lerp", 3, true, intrinsic_lerp},

4
libs/vkd3d-shader/hlsl_sm1.c
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@ -658,6 +658,10 @@ static void write_sm1_expr(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *b
write_sm1_binary_op(ctx, buffer, D3DSIO_MUL, &instr->reg, &arg1->reg, &arg2->reg);
break;
case HLSL_OP1_FRACT:
write_sm1_unary_op(ctx, buffer, D3DSIO_FRC, &instr->reg, &arg1->reg, D3DSPSM_NONE);
break;
default:
hlsl_fixme(ctx, &instr->loc, "SM1 \"%s\" expression.", debug_hlsl_expr_op(expr->op));
break;

12
tests/frac.shader_test Normal file
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@ -0,0 +1,12 @@
[pixel shader]
uniform float4 f;
float4 main() : sv_target
{
return frac(f);
}
[test]
uniform 0 float4 -1.1 1.6 1.3 0.5
draw quad
probe all rgba (0.9, 0.6, 0.3, 0.5) 2