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libs/vkd3d-shader: Decrement OpAtomicIDecrement result.

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This commit is contained in:
Józef Kucia 2017-10-12 13:10:26 +02:00
parent 94a33020d3
commit 2171ba6d32
1 changed files with 6 additions and 0 deletions
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6
libs/vkd3d-shader/spirv.c
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@ -5016,6 +5016,12 @@ static void vkd3d_dxbc_compiler_emit_uav_counter_instruction(struct vkd3d_dxbc_c
operands[2] = vkd3d_dxbc_compiler_get_constant_uint(compiler, SpvMemorySemanticsMaskNone);
result_id = vkd3d_spirv_build_op_trv(builder, &builder->function_stream,
op, type_id, operands, ARRAY_SIZE(operands));
if (op == SpvOpAtomicIDecrement)
{
/* SpvOpAtomicIDecrement returns the original value. */
result_id = vkd3d_spirv_build_op_isub(builder, type_id, result_id,
vkd3d_dxbc_compiler_get_constant_uint(compiler, 1));
}
vkd3d_dxbc_compiler_emit_store_dst(compiler, dst, result_id);
}