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vkd3d: Add VKD3D_CONFIG to skip memory allocator clears. 

For cases where games spam committed allocations and don't use
NOT_ZEROED. We still rely on zerovram behavior for initial backing which
should be enough in most cases.

Strictly speaking however, we are forced to clear the allocations every
time if application does not use the flag correctly.

Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
This commit is contained in:
Hans-Kristian Arntzen 2022-02-24 12:38:40 +01:00
parent 76ca492a39
commit 8a46c21254
3 changed files with 4 additions and 1 deletions
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1
include/vkd3d.h
View File

@ -83,6 +83,7 @@ enum vkd3d_config_flags
VKD3D_CONFIG_FLAG_PIPELINE_LIBRARY_LOG = 0x00100000,
VKD3D_CONFIG_FLAG_PIPELINE_LIBRARY_IGNORE_SPIRV = 0x00200000,
VKD3D_CONFIG_FLAG_MUTABLE_SINGLE_SET = 0x00400000,
VKD3D_CONFIG_FLAG_MEMORY_ALLOCATOR_SKIP_CLEAR = 0x00800000,
};
typedef HRESULT (*PFN_vkd3d_signal_event)(HANDLE event);

1
libs/vkd3d/device.c
View File

@ -610,6 +610,7 @@ static const struct vkd3d_debug_option vkd3d_config_options[] =
{"pipeline_library_log", VKD3D_CONFIG_FLAG_PIPELINE_LIBRARY_LOG},
{"pipeline_library_ignore_spirv", VKD3D_CONFIG_FLAG_PIPELINE_LIBRARY_IGNORE_SPIRV},
{"mutable_single_set", VKD3D_CONFIG_FLAG_MUTABLE_SINGLE_SET},
{"memory_allocator_skip_clear", VKD3D_CONFIG_FLAG_MEMORY_ALLOCATOR_SKIP_CLEAR},
};
static void vkd3d_config_flags_init_once(void)

3
libs/vkd3d/memory.c
View File

@ -1404,7 +1404,8 @@ HRESULT vkd3d_allocate_memory(struct d3d12_device *device, struct vkd3d_memory_a
if (FAILED(hr))
return hr;
if (!(info->heap_flags & D3D12_HEAP_FLAG_CREATE_NOT_ZEROED))
if (!(info->heap_flags & D3D12_HEAP_FLAG_CREATE_NOT_ZEROED) &&
!(vkd3d_config_flags & VKD3D_CONFIG_FLAG_MEMORY_ALLOCATOR_SKIP_CLEAR))
vkd3d_memory_allocator_clear_allocation(allocator, device, allocation);
return hr;