wined3d: Add support for returning multiple viewports.

dlls/d3d11/device.c

@@ -2107,7 +2107,7 @@ static void STDMETHODCALLTYPE d3d11_immediate_context_RSGetViewports(ID3D11Devic
         return;
 
     wined3d_mutex_lock();
-    wined3d_device_get_viewport(device->wined3d_device, &wined3d_vp);
+    wined3d_device_get_viewports(device->wined3d_device, NULL, &wined3d_vp);
     wined3d_mutex_unlock();
 
     viewports[0].TopLeftX = wined3d_vp.x;
@@ -4909,7 +4909,7 @@ static void STDMETHODCALLTYPE d3d10_device_RSGetViewports(ID3D10Device1 *iface,
         return;
 
     wined3d_mutex_lock();
-    wined3d_device_get_viewport(device->wined3d_device, &wined3d_vp);
+    wined3d_device_get_viewports(device->wined3d_device, NULL, &wined3d_vp);
     wined3d_mutex_unlock();
 
     viewports[0].TopLeftX = wined3d_vp.x;

dlls/d3d8/device.c

@@ -1664,7 +1664,7 @@ static HRESULT WINAPI d3d8_device_GetViewport(IDirect3DDevice8 *iface, D3DVIEWPO
     TRACE("iface %p, viewport %p.\n", iface, viewport);
 
     wined3d_mutex_lock();
-    wined3d_device_get_viewport(device->wined3d_device, &wined3d_viewport);
+    wined3d_device_get_viewports(device->wined3d_device, NULL, &wined3d_viewport);
     wined3d_mutex_unlock();
 
     viewport->X = wined3d_viewport.x;

dlls/d3d9/device.c

@@ -2082,7 +2082,7 @@ static HRESULT WINAPI d3d9_device_GetViewport(IDirect3DDevice9Ex *iface, D3DVIEW
     TRACE("iface %p, viewport %p.\n", iface, viewport);
 
     wined3d_mutex_lock();
-    wined3d_device_get_viewport(device->wined3d_device, &wined3d_viewport);
+    wined3d_device_get_viewports(device->wined3d_device, NULL, &wined3d_viewport);
     wined3d_mutex_unlock();
 
     viewport->X = wined3d_viewport.x;

dlls/ddraw/device.c

@@ -5367,7 +5367,7 @@ static HRESULT d3d_device7_GetViewport(IDirect3DDevice7 *iface, D3DVIEWPORT7 *vi
         return DDERR_INVALIDPARAMS;
 
     wined3d_mutex_lock();
-    wined3d_device_get_viewport(device->wined3d_device, &wined3d_viewport);
+    wined3d_device_get_viewports(device->wined3d_device, NULL, &wined3d_viewport);
     wined3d_mutex_unlock();
 
     viewport->dwX = wined3d_viewport.x;

dlls/wined3d/device.c

@@ -1940,11 +1940,18 @@ void CDECL wined3d_device_set_viewports(struct wined3d_device *device, unsigned
     wined3d_cs_emit_set_viewports(device->cs, viewport_count, viewports);
 }
 
-void CDECL wined3d_device_get_viewport(const struct wined3d_device *device, struct wined3d_viewport *viewport)
+void CDECL wined3d_device_get_viewports(const struct wined3d_device *device, unsigned int *viewport_count,
+        struct wined3d_viewport *viewports)
 {
-    TRACE("device %p, viewport %p.\n", device, viewport);
+    unsigned int count;
 
-    *viewport = device->state.viewports[0];
+    TRACE("device %p, viewport_count %p, viewports %p.\n", device, viewport_count, viewports);
+
+    count = viewport_count ? min(*viewport_count, device->state.viewport_count) : 1;
+    if (count && viewports)
+        memcpy(viewports, device->state.viewports, count * sizeof(*viewports));
+    if (viewport_count)
+        *viewport_count = device->state.viewport_count;
 }
 
 static void resolve_depth_buffer(struct wined3d_device *device)
@@ -3139,7 +3146,7 @@ static HRESULT process_vertices_strided(const struct wined3d_device *device, DWO
     TRACE("%.8e %.8e %.8e %.8e\n", world_mat._41, world_mat._42, world_mat._43, world_mat._44);
 
     /* Get the viewport */
-    wined3d_device_get_viewport(device, &vp);
+    wined3d_device_get_viewports(device, NULL, &vp);
     TRACE("viewport  x %.8e, y %.8e, width %.8e, height %.8e, min_z %.8e, max_z %.8e.\n",
           vp.x, vp.y, vp.width, vp.height, vp.min_z, vp.max_z);
 

dlls/wined3d/wined3d.spec

@@ -114,7 +114,7 @@
 @ cdecl wined3d_device_get_unordered_access_view(ptr long)
 @ cdecl wined3d_device_get_vertex_declaration(ptr)
 @ cdecl wined3d_device_get_vertex_shader(ptr)
-@ cdecl wined3d_device_get_viewport(ptr ptr)
+@ cdecl wined3d_device_get_viewports(ptr ptr ptr)
 @ cdecl wined3d_device_get_vs_cb(ptr long)
 @ cdecl wined3d_device_get_vs_consts_b(ptr long long ptr)
 @ cdecl wined3d_device_get_vs_consts_f(ptr long long ptr)

include/wine/wined3d.h

@@ -2324,7 +2324,8 @@ struct wined3d_unordered_access_view * __cdecl wined3d_device_get_unordered_acce
         const struct wined3d_device *device, unsigned int idx);
 struct wined3d_vertex_declaration * __cdecl wined3d_device_get_vertex_declaration(const struct wined3d_device *device);
 struct wined3d_shader * __cdecl wined3d_device_get_vertex_shader(const struct wined3d_device *device);
-void __cdecl wined3d_device_get_viewport(const struct wined3d_device *device, struct wined3d_viewport *viewport);
+void __cdecl wined3d_device_get_viewports(const struct wined3d_device *device, unsigned int *viewport_count,
+        struct wined3d_viewport *viewports);
 struct wined3d_buffer * __cdecl wined3d_device_get_vs_cb(const struct wined3d_device *device, UINT idx);
 HRESULT __cdecl wined3d_device_get_vs_consts_b(const struct wined3d_device *device,
         unsigned int start_idx, unsigned int count, BOOL *constants);