[PATCH] wined3d: End transform feedback on SO buffer destruction even if the D3D buffer isn't bound.

[Henri Verbeet]

From: Matteo Bruni

It might still be bound in GL.

Signed-off-by: Zebediah Figura 
Signed-off-by: Henri Verbeet 
---
v3:
    - Invalidate state in wined3d_device_uninit_3d(). In some sense that's
      redundant, because the device is subsequently going to be destroyed.
      However, we now rely on STATE_STREAM_OUTPUT being invalidated during
      device destruction. (As shown by the test_index_buffer_offset() test.)
    - Avoid (deprecated) isStateDirty().
    - Minor spelling fix.
This supersedes patch 217693.

dlls/wined3d/buffer.c | 16 ++++++++++------
 dlls/wined3d/device.c |  2 +-
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/dlls/wined3d/buffer.c b/dlls/wined3d/buffer.c
index d259b64bfaf..854fa71aefe 100644
--- a/dlls/wined3d/buffer.c
+++ b/dlls/wined3d/buffer.c
@@ -145,12 +145,16 @@ static void wined3d_buffer_gl_destroy_buffer_object(struct wined3d_buffer_gl *bu
     if (!buffer_gl->b.buffer_object)
         return;

-    if (context_gl->c.transform_feedback_active && resource->bind_count
-            && resource->bind_flags & WINED3D_BIND_STREAM_OUTPUT)
-    {
-        /* We have to make sure that transform feedback is not active
-         * when deleting a potentially bound transform feedback buffer.
-         * This may happen when the device is being destroyed. */
+    if (context_gl->c.transform_feedback_active && (resource->bind_flags & WINED3D_BIND_STREAM_OUTPUT)
+            && wined3d_context_is_graphics_state_dirty(&context_gl->c, STATE_STREAM_OUTPUT))
+    {
+        /* It's illegal to (un)bind GL_TRANSFORM_FEEDBACK_BUFFER while transform
+         * feedback is active. Deleting a buffer implicitly unbinds it, so we
+         * need to end transform feedback here if this buffer was bound.
+         *
+         * This should only be possible if STATE_STREAM_OUTPUT is dirty; if we
+         * do a draw call before destroying this buffer then the draw call will
+         * already rebind the GL target. */
         WARN("Deleting buffer object for buffer %p, disabling transform feedback.\n", buffer_gl);
         wined3d_context_gl_end_transform_feedback(context_gl);
     }
diff --git a/dlls/wined3d/device.c b/dlls/wined3d/device.c
index 86945485e20..1c584b93fe0 100644
--- a/dlls/wined3d/device.c
+++ b/dlls/wined3d/device.c
@@ -1182,7 +1182,7 @@ void wined3d_device_uninit_3d(struct wined3d_device *device)
         wined3d_texture_decref(texture);
     }

-    wined3d_device_context_emit_reset_state(&device->cs->c, false);
+    wined3d_device_context_emit_reset_state(&device->cs->c, true);
     state_cleanup(state);

wine_rb_clear(&device->samplers, device_free_sampler, NULL);