Stefan Dösinger : wined3d: Don' t store user memory in allocatedMemory.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: fb752928757498e04362b4ca1366e83985273173
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=fb752928757498e04362b4ca13...

Author: Stefan Dösinger <stefan(a)codeweavers.com>
Date:   Fri Dec 13 12:30:13 2013 +0100

wined3d: Don't store user memory in allocatedMemory.

---

 dlls/wined3d/surface.c         |   45 ++++++++++++++++++++++++----------------
 dlls/wined3d/wined3d_private.h |    1 +
 2 files changed, 28 insertions(+), 18 deletions(-)

diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index f18bab1..2fca299 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -88,9 +88,6 @@ static void surface_cleanup(struct wined3d_surface *surface)
         surface->resource.allocatedMemory = NULL;
     }
 
-    if (surface->flags & SFLAG_USERPTR)
-        surface->resource.allocatedMemory = NULL;
-
     if (surface->overlay_dest)
         list_remove(&surface->overlay_entry);
 
@@ -497,7 +494,7 @@ static HRESULT surface_create_dib_section(struct wined3d_surface *surface)
         memcpy(surface->dib.bitmap_data, surface->resource.allocatedMemory,
                 surface->resource.height * wined3d_surface_get_pitch(surface));
     }
-    else
+    else if (!surface->user_memory)
     {
         /* This is to make maps read the GL texture although memory is allocated. */
         surface->flags &= ~SFLAG_INSYSMEM;
@@ -519,16 +516,20 @@ static HRESULT surface_create_dib_section(struct wined3d_surface *surface)
 
 static void surface_get_memory(const struct wined3d_surface *surface, struct wined3d_bo_address *data)
 {
+    if (surface->user_memory)
+    {
+        data->addr = surface->user_memory;
+        data->buffer_object = 0;
+        return;
+    }
     if (surface->flags & SFLAG_PBO)
     {
         data->addr = NULL;
         data->buffer_object = surface->pbo;
+        return;
     }
-    else
-    {
-        data->addr = surface->resource.allocatedMemory;
-        data->buffer_object = 0;
-    }
+    data->addr = surface->resource.allocatedMemory;
+    data->buffer_object = 0;
 }
 
 static BOOL surface_need_pbo(const struct wined3d_surface *surface, const struct wined3d_gl_info *gl_info)
@@ -587,7 +588,8 @@ static void surface_prepare_system_memory(struct wined3d_surface *surface)
 
     if (!(surface->flags & SFLAG_PBO) && surface_need_pbo(surface, gl_info))
         surface_create_pbo(surface, gl_info);
-    else if (!(surface->resource.allocatedMemory || surface->flags & SFLAG_PBO))
+    else if (!(surface->resource.allocatedMemory || surface->flags & SFLAG_PBO
+            || surface->user_memory))
     {
         /* Whatever surface we have, make sure that there is memory allocated
          * for the downloaded copy, or a PBO to map. */
@@ -831,6 +833,9 @@ static BYTE *surface_map(struct wined3d_surface *surface, const RECT *rect, DWOR
         return ret;
     }
 
+    if (surface->user_memory)
+        return surface->user_memory;
+
     return surface->resource.allocatedMemory;
 }
 
@@ -1296,7 +1301,11 @@ static void surface_remove_pbo(struct wined3d_surface *surface, const struct win
 
 static BOOL surface_init_sysmem(struct wined3d_surface *surface)
 {
-    if (!surface->resource.allocatedMemory)
+    if (surface->resource.allocatedMemory)
+    {
+        memset(surface->resource.allocatedMemory, 0, surface->resource.size);
+    }
+    else if (!surface->user_memory)
     {
         if (!surface->resource.heap_memory)
         {
@@ -1314,10 +1323,6 @@ static BOOL surface_init_sysmem(struct wined3d_surface *surface)
 
         surface->resource.allocatedMemory = surface->resource.heap_memory;
     }
-    else
-    {
-        memset(surface->resource.allocatedMemory, 0, surface->resource.size);
-    }
 
     surface_validate_location(surface, SFLAG_INSYSMEM);
     surface_invalidate_location(surface, ~SFLAG_INSYSMEM);
@@ -1491,6 +1496,9 @@ static BYTE *gdi_surface_map(struct wined3d_surface *surface, const RECT *rect,
     TRACE("surface %p, rect %s, flags %#x.\n",
             surface, wine_dbgstr_rect(rect), flags);
 
+    if (surface->user_memory)
+        return surface->user_memory;
+
     return surface->resource.allocatedMemory;
 }
 
@@ -2611,7 +2619,7 @@ HRESULT CDECL wined3d_surface_set_mem(struct wined3d_surface *surface, void *mem
         return WINED3DERR_INVALIDCALL;
     }
 
-    if (mem && mem != surface->resource.allocatedMemory)
+    if (mem && mem != surface->user_memory)
     {
         /* Do I have to copy the old surface content? */
         if (surface->flags & SFLAG_DIBSECTION)
@@ -2626,8 +2634,9 @@ HRESULT CDECL wined3d_surface_set_mem(struct wined3d_surface *surface, void *mem
         else if (!(surface->flags & SFLAG_USERPTR))
         {
             wined3d_resource_free_sysmem(&surface->resource);
+            surface->resource.allocatedMemory = NULL;
         }
-        surface->resource.allocatedMemory = mem;
+        surface->user_memory = mem;
         surface->flags |= SFLAG_USERPTR;
 
         /* Now the surface memory is most up do date. Invalidate drawable and texture. */
@@ -2646,7 +2655,7 @@ HRESULT CDECL wined3d_surface_set_mem(struct wined3d_surface *surface, void *mem
 
         if (!mem)
         {
-            surface->resource.allocatedMemory = NULL;
+            surface->user_memory = NULL;
             surface->flags &= ~(SFLAG_USERPTR | SFLAG_INSYSMEM);
 
             if (surface->flags & SFLAG_CLIENT)
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index d0a8624..5f42964 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -2186,6 +2186,7 @@ struct wined3d_surface
     struct wined3d_swapchain *swapchain;
     struct wined3d_palette *palette; /* D3D7 style palette handling */
     DWORD draw_binding;
+    void *user_memory;
 
     DWORD flags;