d3d12: Handle import/export of fd shared handles
Reviewed-by: Bill Kristiansen <billkris@microsoft.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13054>
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@ -42,6 +42,11 @@
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#include <dxguids/dxguids.h>
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#include <memory>
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#ifndef GENERIC_ALL
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// This is only added to winadapter.h in newer DirectX-Headers
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#define GENERIC_ALL 0x10000000L
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#endif
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static bool
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can_map_directly(struct pipe_resource *pres)
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{
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@ -293,7 +298,8 @@ d3d12_resource_from_handle(struct pipe_screen *pscreen,
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const struct pipe_resource *templ,
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struct winsys_handle *handle, unsigned usage)
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{
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if (handle->type != WINSYS_HANDLE_TYPE_D3D12_RES)
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if (handle->type != WINSYS_HANDLE_TYPE_D3D12_RES &&
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handle->type != WINSYS_HANDLE_TYPE_FD)
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return NULL;
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struct d3d12_resource *res = CALLOC_STRUCT(d3d12_resource);
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@ -305,7 +311,25 @@ d3d12_resource_from_handle(struct pipe_screen *pscreen,
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res->base.b.screen = pscreen;
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res->dxgi_format = templ->target == PIPE_BUFFER ? DXGI_FORMAT_UNKNOWN :
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d3d12_get_format(templ->format);
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if (handle->type == WINSYS_HANDLE_TYPE_D3D12_RES) {
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res->bo = d3d12_bo_wrap_res((ID3D12Resource *)handle->com_obj, templ->format);
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} else {
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struct d3d12_screen *screen = d3d12_screen(pscreen);
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ID3D12Resource *d3d12_res = nullptr;
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#ifdef _WIN32
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HANDLE d3d_handle = handle->handle;
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#else
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HANDLE d3d_handle = (HANDLE)(intptr_t)handle->handle;
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#endif
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screen->dev->OpenSharedHandle(d3d_handle, IID_PPV_ARGS(&d3d12_res));
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if (!d3d12_res) {
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FREE(res);
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return NULL;
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}
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res->bo = d3d12_bo_wrap_res(d3d12_res, templ->format);
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}
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init_valid_range(res);
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threaded_resource_init(&res->base.b, false, 0);
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return &res->base.b;
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@ -319,12 +343,35 @@ d3d12_resource_get_handle(struct pipe_screen *pscreen,
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unsigned usage)
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{
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struct d3d12_resource *res = d3d12_resource(pres);
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struct d3d12_screen *screen = d3d12_screen(pscreen);
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if (handle->type != WINSYS_HANDLE_TYPE_D3D12_RES)
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return false;
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switch (handle->type) {
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case WINSYS_HANDLE_TYPE_D3D12_RES:
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handle->com_obj = d3d12_resource_resource(res);
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return true;
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case WINSYS_HANDLE_TYPE_FD: {
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HANDLE d3d_handle = nullptr;
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screen->dev->CreateSharedHandle(d3d12_resource_resource(res),
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nullptr,
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GENERIC_ALL,
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nullptr,
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&d3d_handle);
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if (!d3d_handle)
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return false;
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#ifdef _WIN32
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handle->handle = d3d_handle;
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#else
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handle->handle = (int)(intptr_t)d3d_handle;
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#endif
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handle->format = pres->format;
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handle->modifier = ~0ull;
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return true;
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}
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default:
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return false;
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}
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}
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void
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