From 5c987ea3d163b2e3925a906b9027224b05626946 Mon Sep 17 00:00:00 2001
From: Paul Gofman <pgofman@codeweavers.com>
Date: Wed, 31 Jul 2024 11:50:31 -0600
Subject: [PATCH] [d3d9] Handle map failure in texture initializer

---
 src/d3d9/d3d9_common_texture.cpp |  2 ++
 src/d3d9/d3d9_initializer.cpp    | 21 +++++++++++++++------
 src/d3d9/d3d9_initializer.h      |  5 +++--
 3 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/src/d3d9/d3d9_common_texture.cpp b/src/d3d9/d3d9_common_texture.cpp
index ba8a3140..be7474b5 100644
--- a/src/d3d9/d3d9_common_texture.cpp
+++ b/src/d3d9/d3d9_common_texture.cpp
@@ -194,6 +194,8 @@ namespace dxvk {
 
     m_data.Map();
     uint8_t* ptr = reinterpret_cast<uint8_t*>(m_data.Ptr());
+    if (ptr == nullptr)
+      return nullptr;
     ptr += m_memoryOffset[Subresource];
     return ptr;
   }
diff --git a/src/d3d9/d3d9_initializer.cpp b/src/d3d9/d3d9_initializer.cpp
index 26dae412..ece83bd7 100644
--- a/src/d3d9/d3d9_initializer.cpp
+++ b/src/d3d9/d3d9_initializer.cpp
@@ -44,11 +44,21 @@ namespace dxvk {
     if (pTexture->GetMapMode() == D3D9_COMMON_TEXTURE_MAP_MODE_NONE)
       return;
 
+    void* mapPtr = nullptr;
+
+    if (pTexture->Desc()->Pool != D3DPOOL_DEFAULT) {
+      mapPtr = pTexture->GetData(0);
+      if (mapPtr == nullptr)
+        throw DxvkError("D3D9: InitTexture: map failed");
+    }
+
     if (pTexture->GetImage() != nullptr)
       InitDeviceLocalTexture(pTexture);
 
-    if (pTexture->Desc()->Pool != D3DPOOL_DEFAULT)
-      InitHostVisibleTexture(pTexture, pInitialData);
+    if (mapPtr != nullptr) {
+      InitHostVisibleTexture(pTexture, pInitialData, mapPtr);
+      pTexture->UnmapData();
+    }
   }
 
 
@@ -109,11 +119,11 @@ namespace dxvk {
 
   void D3D9Initializer::InitHostVisibleTexture(
           D3D9CommonTexture* pTexture,
-          void*              pInitialData) {
+          void*              pInitialData,
+          void*              mapPtr) {
     // If the buffer is mapped, we can write data directly
     // to the mapped memory region instead of doing it on
     // the GPU. Same goes for zero-initialization.
-    void* mapPtr = pTexture->GetData(0);
     if (pInitialData) {
       // Initial data is only supported for textures with 1 subresource
       VkExtent3D mipExtent = pTexture->GetExtentMip(0);
@@ -141,7 +151,6 @@ namespace dxvk {
         mapPtr, 0,
         pTexture->GetTotalSize());
     }
-    pTexture->UnmapData();
   }
 
 
@@ -159,4 +168,4 @@ namespace dxvk {
     m_transferMemory   = 0;
   }
 
-}
\ No newline at end of file
+}
diff --git a/src/d3d9/d3d9_initializer.h b/src/d3d9/d3d9_initializer.h
index 59802f95..69ce5d33 100644
--- a/src/d3d9/d3d9_initializer.h
+++ b/src/d3d9/d3d9_initializer.h
@@ -52,11 +52,12 @@ namespace dxvk {
 
     void InitHostVisibleTexture(
             D3D9CommonTexture* pTexture,
-            void*              pInitialData);
+            void*              pInitialData,
+            void*              mapPtr);
     
     void FlushImplicit();
     void FlushInternal();
 
   };
 
-}
\ No newline at end of file
+}