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d3d12: Add a debug flag to opt out of singleton behavior

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For testing, it can be useful to observe behaviors on the singleton
device by just having the test also just use D3D12CreateDevice

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26744>
This commit is contained in:
Jesse Natalie 2023-12-18 10:05:05 -08:00 • committed by Marge Bot
parent bed69133cd
commit ff9868c569
2 changed files with 5 additions and 0 deletions
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1
src/gallium/drivers/d3d12/d3d12_debug.h
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@ -38,6 +38,7 @@ extern "C" {
#define D3D12_DEBUG_RESOURCE (1 << 5)
#define D3D12_DEBUG_DEBUG_LAYER (1 << 6)
#define D3D12_DEBUG_GPU_VALIDATOR (1 << 7)
#define D3D12_DEBUG_SINGLETON (1 << 8)
extern uint32_t d3d12_debug;

4
src/gallium/drivers/d3d12/d3d12_screen.cpp
View file

@ -68,6 +68,7 @@ d3d12_debug_options[] = {
{ "res", D3D12_DEBUG_RESOURCE, "Debug resources" },
{ "debuglayer", D3D12_DEBUG_DEBUG_LAYER, "Enable debug layer" },
{ "gpuvalidator", D3D12_DEBUG_GPU_VALIDATOR, "Enable GPU validator" },
{ "singleton", D3D12_DEBUG_SINGLETON, "Disallow use of device factory" },
DEBUG_NAMED_VALUE_END
};
@ -1393,6 +1394,9 @@ try_find_d3d12core_next_to_self(char *path, size_t path_arr_size)
static ID3D12DeviceFactory *
try_create_device_factory(util_dl_library *d3d12_mod)
{
if (d3d12_debug & D3D12_DEBUG_SINGLETON)
return nullptr;
/* A device factory allows us to isolate things like debug layer enablement from other callers,
* and can potentially even refer to a different D3D12 redist implementation from others.
*/