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vkd3d-shader/hlsl: Implement ternary operator for older vertex profiles.

Browse Source 
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56333
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov 2024-02-22 15:40:26 +01:00 committed by Alexandre Julliard
parent f866fb95ad
commit 937d76507d
Notes: Alexandre Julliard 2024-03-06 23:29:00 +01:00 
Approved-by: Giovanni Mascellani (@giomasce)
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/669
4 changed files with 45 additions and 3 deletions
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4
libs/vkd3d-shader/d3dbc.c
View File

@ -2329,6 +2329,10 @@ static void write_sm1_expr(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *b
}
break;
case HLSL_OP2_SLT:
write_sm1_binary_op(ctx, buffer, D3DSIO_SLT, &instr->reg, &arg1->reg, &arg2->reg);
break;
case HLSL_OP3_CMP:
write_sm1_ternary_op(ctx, buffer, D3DSIO_CMP, &instr->reg, &arg1->reg, &arg2->reg, &arg3->reg);
break;

1
libs/vkd3d-shader/hlsl.c
View File

@ -2611,6 +2611,7 @@ const char *debug_hlsl_expr_op(enum hlsl_ir_expr_op op)
[HLSL_OP2_MUL] = "*",
[HLSL_OP2_NEQUAL] = "!=",
[HLSL_OP2_RSHIFT] = ">>",
[HLSL_OP2_SLT] = "slt",
[HLSL_OP3_CMP] = "cmp",
[HLSL_OP3_DP2ADD] = "dp2add",

1
libs/vkd3d-shader/hlsl.h
View File

@ -593,6 +593,7 @@ enum hlsl_ir_expr_op
HLSL_OP2_MUL,
HLSL_OP2_NEQUAL,
HLSL_OP2_RSHIFT,
HLSL_OP2_SLT,
/* DP2ADD(a, b, c) computes the scalar product of a.xy and b.xy,
* then adds c. */

42
libs/vkd3d-shader/hlsl_codegen.c
View File

@ -2903,7 +2903,7 @@ static bool lower_floor(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, struct
return true;
}
/* Use 'movc' for the ternary operator. */
/* Use movc/cmp/slt for the ternary operator. */
static bool lower_ternary(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, struct hlsl_block *block)
{
struct hlsl_ir_node *operands[HLSL_MAX_OPERANDS] = { 0 }, *replacement;
@ -2949,8 +2949,44 @@ static bool lower_ternary(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, stru
}
else if (ctx->profile->major_version < 4 && ctx->profile->type == VKD3D_SHADER_TYPE_VERTEX)
{
hlsl_fixme(ctx, &instr->loc, "Ternary operator is not implemented for %s profile.", ctx->profile->name);
return false;
struct hlsl_ir_node *neg, *slt, *sum, *mul, *cond2;
/* Expression used here is "slt(<cond>) * (first - second) + second". */
if (ctx->profile->major_version == 3)
{
if (!(cond2 = hlsl_new_unary_expr(ctx, HLSL_OP1_ABS, cond, &instr->loc)))
return false;
}
else
{
if (!(cond2 = hlsl_new_binary_expr(ctx, HLSL_OP2_MUL, cond, cond)))
return false;
}
hlsl_block_add_instr(block, cond2);
if (!(neg = hlsl_new_unary_expr(ctx, HLSL_OP1_NEG, cond2, &instr->loc)))
return false;
hlsl_block_add_instr(block, neg);
if (!(slt = hlsl_new_binary_expr(ctx, HLSL_OP2_SLT, neg, cond2)))
return false;
hlsl_block_add_instr(block, slt);
if (!(neg = hlsl_new_unary_expr(ctx, HLSL_OP1_NEG, second, &instr->loc)))
return false;
hlsl_block_add_instr(block, neg);
if (!(sum = hlsl_new_binary_expr(ctx, HLSL_OP2_ADD, first, neg)))
return false;
hlsl_block_add_instr(block, sum);
if (!(mul = hlsl_new_binary_expr(ctx, HLSL_OP2_MUL, slt, sum)))
return false;
hlsl_block_add_instr(block, mul);
if (!(replacement = hlsl_new_binary_expr(ctx, HLSL_OP2_ADD, mul, second)))
return false;
}
else
{