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vkd3d-shader: Add constant folding for 'dp2add' operation.

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Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov 2023-06-18 23:19:02 +02:00 committed by Alexandre Julliard
parent 25ff56769b
commit 7e99188dc7
Notes: Alexandre Julliard 2023-08-14 21:00:32 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Francisco Casas (@fcasas)
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/240
1 changed files with 37 additions and 1 deletions
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38
libs/vkd3d-shader/hlsl_constant_ops.c
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@ -376,6 +376,36 @@ static bool fold_dot(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, cons
return true;
}
static bool fold_dp2add(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, const struct hlsl_type *dst_type,
const struct hlsl_ir_constant *src1, const struct hlsl_ir_constant *src2, const struct hlsl_ir_constant *src3)
{
enum hlsl_base_type type = dst_type->base_type;
unsigned int k;
assert(type == src1->node.data_type->base_type);
assert(type == src2->node.data_type->base_type);
assert(type == src3->node.data_type->base_type);
assert(src1->node.data_type->dimx == src2->node.data_type->dimx);
assert(src3->node.data_type->dimx == 1);
dst->u[0].f = src3->value.u[0].f;
for (k = 0; k < src1->node.data_type->dimx; ++k)
{
switch (type)
{
case HLSL_TYPE_FLOAT:
case HLSL_TYPE_HALF:
dst->u[0].f += src1->value.u[k].f * src2->value.u[k].f;
break;
default:
FIXME("Fold 'dp2add' for type %s.\n", debug_hlsl_type(ctx, dst_type));
return false;
}
}
return true;
}
static bool fold_div(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, const struct hlsl_type *dst_type,
const struct hlsl_ir_constant *src1, const struct hlsl_ir_constant *src2,
const struct vkd3d_shader_location *loc)
@ -751,7 +781,7 @@ static bool fold_nequal(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, c
bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, void *context)
{
struct hlsl_ir_constant *arg1, *arg2 = NULL;
struct hlsl_ir_constant *arg1, *arg2 = NULL, *arg3 = NULL;
struct hlsl_constant_value res = {0};
struct hlsl_ir_node *res_node;
struct hlsl_ir_expr *expr;
@ -779,6 +809,8 @@ bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,
arg1 = hlsl_ir_constant(expr->operands[0].node);
if (expr->operands[1].node)
arg2 = hlsl_ir_constant(expr->operands[1].node);
if (expr->operands[2].node)
arg3 = hlsl_ir_constant(expr->operands[2].node);
switch (expr->op)
{
@ -856,6 +888,10 @@ bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,
success = fold_nequal(ctx, &res, instr->data_type, arg1, arg2);
break;
case HLSL_OP3_DP2ADD:
success = fold_dp2add(ctx, &res, instr->data_type, arg1, arg2, arg3);
break;
default:
FIXME("Fold \"%s\" expression.\n", debug_hlsl_expr_op(expr->op));
success = false;