Remove the need for a patched nvidia library for NvFBC. (#2471)

LizardByte · Jun 1, 2024 · 9afb1ae · 9afb1ae
1 parent 17e0f1a
commit 9afb1ae
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/platform/linux/cuda.cpp b/src/platform/linux/cuda.cpp
@@ -614,6 +614,12 @@ namespace cuda {
       make() {
         NVFBC_CREATE_HANDLE_PARAMS params { NVFBC_CREATE_HANDLE_PARAMS_VER };
 
+        // Set privateData to allow NvFBC on consumer NVIDIA GPUs.
+        // Based on https://github.com/keylase/nvidia-patch/blob/3193b4b1cea91527bf09ea9b8db5aade6a3f3c0a/win/nvfbcwrp/nvfbcwrp_main.cpp#L23-L25 .
+        const unsigned int MAGIC_PRIVATE_DATA[4] = { 0xAEF57AC5, 0x401D1A39, 0x1B856BBE, 0x9ED0CEBA };
+        params.privateData = MAGIC_PRIVATE_DATA;
+        params.privateDataSize = sizeof(MAGIC_PRIVATE_DATA);
+
         handle_t handle;
         auto status = func.nvFBCCreateHandle(&handle.handle, &params);
         if (status) {