[PATCH 1/8] d3d8: Call IDirect3DSwapChain8::Present in IDirect3DDevice8::Present.

[Stefan Dösinger]

The immediate purpose this time is to have one place where we call the
wined3d method and have to update pointers after rotating through
buffers. But while I'm at it I am implementing the behavior fraps wants
to display its overlay in d3d8 games.
---
 dlls/d3d8/d3d8_private.h |  4 ++++
 dlls/d3d8/device.c       | 23 +++++++++++++----------
 2 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/dlls/d3d8/d3d8_private.h b/dlls/d3d8/d3d8_private.h
index 6283c8d..447719a 100644
--- a/dlls/d3d8/d3d8_private.h
+++ b/dlls/d3d8/d3d8_private.h
@@ -176,6 +176,10 @@ struct d3d8_device
     LONG device_state;
     /* Avoids recursion with nested ReleaseRef to 0 */
     BOOL                    inDestruction;
+
+    /* The d3d8 API supports only one implicit swapchain (no D3DCREATE_ADAPTERGROUP_DEVICE,
+     * no GetSwapchain, GetBackBuffer doesn't accept a swapchain number). */
+    IDirect3DSwapChain8     *implicit_swapchain;
 };
 
 HRESULT device_init(struct d3d8_device *device, struct d3d8 *parent, struct wined3d *wined3d, UINT adapter,
diff --git a/dlls/d3d8/device.c b/dlls/d3d8/device.c
index e899b34..6c66267 100644
--- a/dlls/d3d8/device.c
+++ b/dlls/d3d8/device.c
@@ -704,20 +704,17 @@ static HRESULT WINAPI d3d8_device_Present(IDirect3DDevice8 *iface, const RECT *s
         const RECT *dst_rect, HWND dst_window_override, const RGNDATA *dirty_region)
 {
     struct d3d8_device *device = impl_from_IDirect3DDevice8(iface);
-    HRESULT hr;
 
     TRACE("iface %p, src_rect %s, dst_rect %s, dst_window_override %p, dirty_region %p.\n",
             iface, wine_dbgstr_rect(src_rect), wine_dbgstr_rect(dst_rect), dst_window_override, dirty_region);
 
-    if (device->device_state != D3D8_DEVICE_STATE_OK)
-        return D3DERR_DEVICELOST;
-
-    wined3d_mutex_lock();
-    hr = wined3d_device_present(device->wined3d_device, src_rect, dst_rect,
-            dst_window_override, dirty_region, 0);
-    wined3d_mutex_unlock();
-
-    return hr;
+    /* Fraps does not hook IDirect3DDevice8::Present regardless of the hotpatch
+     * attribute. It only hooks IDirect3DSwapChain8::Present. Yet it properly
+     * shows a framerate on Windows in applications that only call the device
+     * method, like e.g. the dx8 sdk samples. The conclusion is that native
+     * calls the swapchain's public method from the device. */
+    return IDirect3DSwapChain8_Present(device->implicit_swapchain, src_rect,
+            dst_rect, dst_window_override, dirty_region);
 }
 
 static HRESULT WINAPI d3d8_device_GetBackBuffer(IDirect3DDevice8 *iface,
@@ -3113,6 +3110,8 @@ HRESULT device_init(struct d3d8_device *device, struct d3d8 *parent, struct wine
         D3DDEVTYPE device_type, HWND focus_window, DWORD flags, D3DPRESENT_PARAMETERS *parameters)
 {
     struct wined3d_swapchain_desc swapchain_desc;
+    struct wined3d_swapchain *wined3d_swapchain;
+    struct d3d8_swapchain *swapchain_impl;
     HRESULT hr;
 
     device->IDirect3DDevice8_iface.lpVtbl = &d3d8_device_vtbl;
@@ -3199,6 +3198,10 @@ HRESULT device_init(struct d3d8_device *device, struct d3d8 *parent, struct wine
         goto err;
     }
 
+    wined3d_swapchain = wined3d_device_get_swapchain(device->wined3d_device, 0);
+    swapchain_impl = wined3d_swapchain_get_parent(wined3d_swapchain);
+    device->implicit_swapchain = &swapchain_impl->IDirect3DSwapChain8_iface;
+
     device->d3d_parent = &parent->IDirect3D8_iface;
     IDirect3D8_AddRef(device->d3d_parent);
 
-- 
2.4.6