From edf1b8e8e648de2d59fc1137151aae048eb430e4 Mon Sep 17 00:00:00 2001
From: Megamouse <studienricky89@googlemail.com>
Date: Thu, 6 Feb 2025 17:17:14 +0100
Subject: [PATCH] cellVdec: implement cellVdecOpenExt

---
 rpcs3/Emu/Cell/Modules/cellVdec.cpp | 21 ++++++++++++++++++---
 rpcs3/Emu/Cell/Modules/cellVdec.h   | 10 ++++++++++
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/rpcs3/Emu/Cell/Modules/cellVdec.cpp b/rpcs3/Emu/Cell/Modules/cellVdec.cpp
index 7ba9644d15..4574d99d59 100644
--- a/rpcs3/Emu/Cell/Modules/cellVdec.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellVdec.cpp
@@ -1619,10 +1619,25 @@ error_code cellVdecSetFrameRate(u32 handle, CellVdecFrameRate frameRateCode)
 	return CELL_OK;
 }
 
-error_code cellVdecOpenExt()
+error_code cellVdecOpenExt(ppu_thread& ppu, vm::cptr<CellVdecType> type, vm::cptr<CellVdecResourceExt> res, vm::cptr<CellVdecCb> cb, vm::ptr<u32> handle)
 {
-	UNIMPLEMENTED_FUNC(cellVdec);
-	return CELL_OK;
+	cellVdec.warning("cellVdecOpenExt(type=*0x%x, res=*0x%x, cb=*0x%x, handle=*0x%x)", type, res, cb, handle);
+
+	if (!res)
+	{
+		return CELL_VDEC_ERROR_ARG;
+	}
+
+	vm::var<CellVdecResource> tmp = vm::make_var<CellVdecResource>({});
+	tmp->memAddr = res->memAddr;
+	tmp->memSize = res->memSize;
+	tmp->ppuThreadPriority = res->ppuThreadPriority;
+	tmp->ppuThreadStackSize = res->ppuThreadStackSize;
+	tmp->spuThreadPriority = 0;
+	tmp->numOfSpus = res->numOfSpus;
+
+	const vm::ptr<CellVdecResource> ptr = vm::cast(tmp.addr());
+	return vdecOpen(ppu, type, ptr, cb, handle);
 }
 
 error_code cellVdecStartSeqExt()
diff --git a/rpcs3/Emu/Cell/Modules/cellVdec.h b/rpcs3/Emu/Cell/Modules/cellVdec.h
index e09695bcc3..9f30b7d1b0 100644
--- a/rpcs3/Emu/Cell/Modules/cellVdec.h
+++ b/rpcs3/Emu/Cell/Modules/cellVdec.h
@@ -133,6 +133,16 @@ struct CellVdecResourceEx
 	be_t<u32> spursResource_addr;
 };
 
+struct CellVdecResourceExt // speculative
+{
+	be_t<u32> memAddr;
+	be_t<u32> memSize;
+	be_t<s32> ppuThreadPriority;
+	be_t<u32> ppuThreadStackSize;
+	u8 unk[12];
+	be_t<u32> numOfSpus;
+};
+
 // Access Unit Information
 struct CellVdecAuInfo
 {