Paul Gofman : ddraw: Deny locking lost surfaces.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 530a3d94de949030f8d74bacd6c20986b32f1a31
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=530a3d94de949030f8d74bacd...

Author: Paul Gofman 
Date:   Thu Mar 26 16:09:41 2020 +0300

ddraw: Deny locking lost surfaces.

Signed-off-by: Paul Gofman 
Signed-off-by: Henri Verbeet 
Signed-off-by: Alexandre Julliard

---

dlls/ddraw/surface.c      | 18 ++++++++++++++++++
 dlls/ddraw/tests/ddraw7.c | 13 +++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/dlls/ddraw/surface.c b/dlls/ddraw/surface.c
index b6a7ebb734..9850a1e8c9 100644
--- a/dlls/ddraw/surface.c
+++ b/dlls/ddraw/surface.c
@@ -1110,6 +1110,12 @@ static HRESULT WINAPI ddraw_surface7_Lock(IDirectDrawSurface7 *iface,
     if (!surface_validate_lock_desc(surface, (DDSURFACEDESC *)surface_desc, &surface_desc_size))
         return DDERR_INVALIDPARAMS;

+    if (ddraw_surface_is_lost(surface))
+    {
+        WARN("Surface is lost.\n");
+        return DDERR_SURFACELOST;
+    }
+
     return surface_lock(surface, rect, surface_desc, surface_desc_size, flags, h);
 }

@@ -1125,6 +1131,12 @@ static HRESULT WINAPI ddraw_surface4_Lock(IDirectDrawSurface4 *iface, RECT *rect
     if (!surface_validate_lock_desc(surface, (DDSURFACEDESC *)surface_desc, &surface_desc_size))
         return DDERR_INVALIDPARAMS;

+    if (ddraw_surface_is_lost(surface))
+    {
+        WARN("Surface is lost.\n");
+        return DDERR_SURFACELOST;
+    }
+
     return surface_lock(surface, rect, surface_desc, surface_desc_size, flags, h);
 }

@@ -1138,6 +1150,12 @@ static HRESULT ddraw_surface_lock_ddsd(struct ddraw_surface *surface, RECT *rect
     if (!surface_validate_lock_desc(surface, surface_desc, &surface_desc_size))
         return DDERR_INVALIDPARAMS;

+    if (ddraw_surface_is_lost(surface))
+    {
+        WARN("Surface is lost.\n");
+        return DDERR_SURFACELOST;
+    }
+
     surface_desc2.dwSize = surface_desc->dwSize;
     surface_desc2.dwFlags = 0;
     hr = surface_lock(surface, rect, &surface_desc2, surface_desc_size, flags, h);
diff --git a/dlls/ddraw/tests/ddraw7.c b/dlls/ddraw/tests/ddraw7.c
index 5c0c5bb7c3..abe5249cc0 100644
--- a/dlls/ddraw/tests/ddraw7.c
+++ b/dlls/ddraw/tests/ddraw7.c
@@ -1056,6 +1056,7 @@ static void test_coop_level_d3d_state(void)
     IDirectDrawSurface7 *rt, *surface;
     IDirect3DDevice7 *device;
     IDirectDraw7 *ddraw;
+    DDSURFACEDESC2 lock;
     IDirect3D7 *d3d;
     D3DCOLOR color;
     DDSCAPS2 caps;
@@ -1116,6 +1117,13 @@ static void test_coop_level_d3d_state(void)
     hr = IDirectDrawSurface7_IsLost(rt);
     ok(hr == DDERR_SURFACELOST, "Got unexpected hr %#x.\n", hr);

+    memset(&lock, 0, sizeof(lock));
+    lock.dwSize = sizeof(lock);
+    lock.lpSurface = (void *)0xdeadbeef;
+    hr = IDirectDrawSurface7_Lock(rt, NULL, &lock, DDLOCK_READONLY, NULL);
+    ok(hr == DDERR_SURFACELOST, "Got unexpected hr %#x.\n", hr);
+    ok(lock.lpSurface == (void *)0xdeadbeef, "Got unexpected lock.lpSurface %p.\n", lock.lpSurface);
+
     memset(&caps, 0, sizeof(caps));
     caps.dwCaps = DDSCAPS_ZBUFFER;
     hr = IDirectDrawSurface7_GetAttachedSurface(rt, &caps, &surface);
@@ -1127,6 +1135,11 @@ static void test_coop_level_d3d_state(void)
     hr = IDirectDraw7_RestoreAllSurfaces(ddraw);
     ok(hr == DD_OK, "Got unexpected hr %#x.\n", hr);

+    hr = IDirectDrawSurface7_Lock(rt, NULL, &lock, DDLOCK_READONLY, NULL);
+    ok(hr == DD_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirectDrawSurface7_Unlock(rt, NULL);
+    ok(hr == DD_OK, "Got unexpected hr %#x.\n", hr);
+
     caps.dwCaps = DDSCAPS_ZBUFFER;
     hr = IDirectDrawSurface7_GetAttachedSurface(rt, &caps, &surface);
     ok(hr == DD_OK, "Got unexpected hr %#x.\n", hr);