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d3d12: Support creating memory objects

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They can wrap either an opened heap or resource

Reviewed-by: Bill Kristiansen <billkris@microsoft.com>
Reviewed-by: Giancarlo Devich <gdevich@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17446>
This commit is contained in:
Jesse Natalie
2022-07-09 18:51:54 -07:00
committed by Marge Bot
parent c87d7cfaad
commit bd0407a4a6
2 changed files with 71 additions and 0 deletions
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59
src/gallium/drivers/d3d12/d3d12_resource.cpp
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@@ -761,6 +761,62 @@ d3d12_resource_get_info(struct pipe_screen *pscreen,
}
}
static struct pipe_memory_object *
d3d12_memobj_create_from_handle(struct pipe_screen *pscreen, struct winsys_handle *handle, bool dedicated)
{
if (handle->type != WINSYS_HANDLE_TYPE_WIN32_HANDLE) {
debug_printf("d3d12: Unsupported memobj handle type\n");
return NULL;
}
struct d3d12_screen *screen = d3d12_screen(pscreen);
IUnknown *obj;
#ifdef _WIN32
HANDLE d3d_handle = handle->handle;
#else
HANDLE d3d_handle = (HANDLE)(intptr_t)handle->handle;
#endif
if (FAILED(screen->dev->OpenSharedHandle(d3d_handle, IID_PPV_ARGS(&obj)))) {
debug_printf("d3d12: Failed to open memobj handle as anything\n");
return NULL;
}
struct d3d12_memory_object *memobj = CALLOC_STRUCT(d3d12_memory_object);
if (!memobj) {
obj->Release();
return NULL;
}
memobj->base.dedicated = dedicated;
(void)obj->QueryInterface(&memobj->res);
(void)obj->QueryInterface(&memobj->heap);
obj->Release();
if (!memobj->res && !memobj->heap) {
debug_printf("d3d12: Memory object isn't a resource or heap\n");
free(memobj);
return NULL;
}
bool expect_dedicated = memobj->res != nullptr;
if (dedicated != expect_dedicated)
debug_printf("d3d12: Expected dedicated to be %s for imported %s\n",
expect_dedicated ? "true" : "false",
expect_dedicated ? "resource" : "heap");
return &memobj->base;
}
static void
d3d12_memobj_destroy(struct pipe_screen *pscreen, struct pipe_memory_object *pmemobj)
{
struct d3d12_memory_object *memobj = d3d12_memory_object(pmemobj);
if (memobj->res)
memobj->res->Release();
if (memobj->heap)
memobj->heap->Release();
free(memobj);
}
void
d3d12_screen_resource_init(struct pipe_screen *pscreen)
{
@@ -769,6 +825,9 @@ d3d12_screen_resource_init(struct pipe_screen *pscreen)
pscreen->resource_get_handle = d3d12_resource_get_handle;
pscreen->resource_destroy = d3d12_resource_destroy;
pscreen->resource_get_info = d3d12_resource_get_info;
pscreen->memobj_create_from_handle = d3d12_memobj_create_from_handle;
pscreen->memobj_destroy = d3d12_memobj_destroy;
}
unsigned int