From 5ff1237563bdb8723c368ceca63385fe1227cf55 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20D=C3=B6singer?= <stefan@codeweavers.com>
Date: Thu, 22 Aug 2013 23:22:46 +0200
Subject: [PATCH] wined3d: Free volume sysmem after upload.

---
 dlls/wined3d/volume.c          | 30 ++++++++++++++++++++++++++++++
 dlls/wined3d/wined3d_private.h |  1 +
 2 files changed, 31 insertions(+)

diff --git a/dlls/wined3d/volume.c b/dlls/wined3d/volume.c
index e2adf057d16..d95fd9138b6 100644
--- a/dlls/wined3d/volume.c
+++ b/dlls/wined3d/volume.c
@@ -112,6 +112,26 @@ static void wined3d_volume_invalidate_location(struct wined3d_volume *volume, DW
     TRACE("new location flags are %s.\n", wined3d_debug_location(volume->locations));
 }
 
+/* Context activation is done by the caller. */
+static void wined3d_volume_download_data(struct wined3d_volume *volume,
+        const struct wined3d_context *context)
+{
+    const struct wined3d_gl_info *gl_info = context->gl_info;
+    const struct wined3d_format *format = volume->resource.format;
+
+    gl_info->gl_ops.gl.p_glGetTexImage(GL_TEXTURE_3D, volume->texture_level,
+            format->glFormat, format->glType, volume->resource.allocatedMemory);
+    checkGLcall("glGetTexImage");
+}
+
+static void wined3d_volume_evict_sysmem(struct wined3d_volume *volume)
+{
+    wined3d_resource_free_sysmem(volume->resource.heap_memory);
+    volume->resource.heap_memory = NULL;
+    volume->resource.allocatedMemory = NULL;
+    wined3d_volume_invalidate_location(volume, WINED3D_LOCATION_SYSMEM);
+}
+
 /* Context activation is done by the caller. */
 static void wined3d_volume_load_location(struct wined3d_volume *volume,
         struct wined3d_context *context, DWORD location)
@@ -160,6 +180,10 @@ static void wined3d_volume_load_location(struct wined3d_volume *volume,
                 return;
             }
             wined3d_volume_validate_location(volume, WINED3D_LOCATION_TEXTURE_RGB);
+
+            if (volume->resource.pool == WINED3D_POOL_MANAGED && volume->download_count < 10)
+                wined3d_volume_evict_sysmem(volume);
+
             break;
 
         case WINED3D_LOCATION_SYSMEM:
@@ -174,6 +198,12 @@ static void wined3d_volume_load_location(struct wined3d_volume *volume,
                 TRACE("Volume previously discarded, nothing to do.\n");
                 wined3d_volume_invalidate_location(volume, WINED3D_LOCATION_DISCARDED);
             }
+            else if (volume->locations & WINED3D_LOCATION_TEXTURE_RGB)
+            {
+                volume_bind_and_dirtify(volume, context);
+                volume->download_count++;
+                wined3d_volume_download_data(volume, context);
+            }
             else
             {
                 FIXME("Implement WINED3D_LOCATION_SYSMEM loading from %s.\n",
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index a09ee807427..0bc84bfdca1 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -2067,6 +2067,7 @@ struct wined3d_volume
 
     DWORD flags, locations;
     GLint texture_level;
+    DWORD download_count;
 };
 
 static inline struct wined3d_volume *volume_from_resource(struct wined3d_resource *resource)