/*****************************************************************************
* IDirectDrawClipper::GetClipList
*
* Retrieve a copy of the clip list
*
* Arguments:
* rect: Rectangle to be used to clip the clip list or NULL for the
* entire clip list.
* clip_list: structure for the resulting copy of the clip list.
* If NULL, fills Size up to the number of bytes necessary to hold
* the entire clip.
* clip_list_size: Size of resulting clip list; size of the buffer at clip_list
* or, if clip_list is NULL, receives the required size of the buffer
* in bytes.
*
* RETURNS
* Either DD_OK or DDERR_*
************************************************************************/
static HRESULT WINAPI ddraw_clipper_GetClipList(IDirectDrawClipper *iface, RECT *rect,
RGNDATA *clip_list, DWORD *clip_list_size)
{
struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
HRGN region;
TRACE("iface %p, rect %s, clip_list %p, clip_list_size %p.\n",
iface, wine_dbgstr_rect(rect), clip_list, clip_list_size);
wined3d_mutex_lock();
if (clipper->window)
{
if (!(region = get_window_region(clipper->window)))
{
wined3d_mutex_unlock();
WARN("Failed to get window region.\n");
return E_FAIL;
}
}
else
{
if (!(region = clipper->region))
{
wined3d_mutex_unlock();
WARN("No clip list set.\n");
return DDERR_NOCLIPLIST;
}
}
if (rect)
{
HRGN clip_region;
if (!(clip_region = CreateRectRgnIndirect(rect)))
{
wined3d_mutex_unlock();
ERR("Failed to create region.\n");
if (clipper->window)
DeleteObject(region);
return E_FAIL;
}
if (CombineRgn(clip_region, region, clip_region, RGN_AND) == ERROR)
{
wined3d_mutex_unlock();
ERR("Failed to combine regions.\n");
DeleteObject(clip_region);
if (clipper->window)
DeleteObject(region);
return E_FAIL;
}
if (clipper->window)
DeleteObject(region);
region = clip_region;
}
*clip_list_size = GetRegionData(region, *clip_list_size, clip_list);
if (rect || clipper->window)
DeleteObject(region);
wined3d_mutex_unlock();
return DD_OK;
}
CoglOnscreen* ImGui_ImplGtk3Cogl_Init(GtkWidget* widget,
void (*callback)(CoglOnscreen *onscreen, void *data),
void *data)
{
g_clear_pointer(&g_GtkWidget, g_object_unref);
g_clear_pointer(&g_GdkWindow, g_object_unref);
g_clear_pointer(&g_Framebuffer, cogl_object_unref);
g_clear_pointer(&g_Context, cogl_object_unref);
g_GtkWidget = GTK_WIDGET(g_object_ref(widget));
gtk_widget_realize(widget);
GdkWindow *parent_window = gtk_widget_get_window(widget);
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
g_Callbacks = get_backend_callbacks(parent_window);
GdkWindowAttr attributes;
memset(&attributes, 0, sizeof(attributes));
attributes.x = 0;
attributes.y = 0;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.window_type = g_Callbacks->winsys == COGL_WINSYS_ID_EGL_WAYLAND ?
GDK_WINDOW_SUBSURFACE : GDK_WINDOW_CHILD;
GdkDisplay *display = gdk_window_get_display(parent_window);
attributes.visual = gtk_widget_get_visual(widget);
g_GdkWindow = gdk_window_new(parent_window, &attributes,
GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL);
gdk_window_set_transient_for(g_GdkWindow, parent_window);
gdk_window_set_pass_through(g_GdkWindow, TRUE);
cairo_rectangle_int_t empty_rect;
memset(&empty_rect, 0, sizeof(empty_rect));
cairo_region_t *input_region = cairo_region_create_rectangle(&empty_rect);
gdk_window_input_shape_combine_region(g_GdkWindow, input_region, 0, 0);
cairo_region_destroy(input_region);
cairo_region_t *region = get_window_region(g_GdkWindow);
gdk_window_set_opaque_region(g_GdkWindow, region);
cairo_region_destroy(region);
CoglRenderer *renderer = cogl_renderer_new();
cogl_renderer_set_winsys_id(renderer, g_Callbacks->winsys);
g_Callbacks->init(renderer, display, g_GdkWindow);
gdk_window_ensure_native(g_GdkWindow);
g_Context = cogl_context_new(cogl_display_new(renderer, NULL), NULL);
CoglOnscreen *onscreen = cogl_onscreen_new(g_Context, 1, 1);
cogl_object_unref(renderer);
g_Callbacks->resize(g_GdkWindow, onscreen,
allocation.width, allocation.height,
allocation.x, allocation.y);
gtk_widget_add_events(widget, EVENT_MASK);
g_signal_connect(widget, "event", G_CALLBACK(handle_gdk_event), NULL);
g_signal_connect(widget, "size-allocate", G_CALLBACK(handle_allocate), NULL);
g_Callbacks->set_window(onscreen, g_GdkWindow);
if (!cogl_framebuffer_allocate(COGL_FRAMEBUFFER(onscreen), NULL))
g_warning("Unable to allocate framebuffer");
g_Framebuffer = COGL_FRAMEBUFFER(onscreen);
ImGuiIO& io = ImGui::GetIO();
for (int i = 0; i < ImGuiKey_COUNT; i++)
{
io.KeyMap[i] = i;
}
io.SetClipboardTextFn = ImGui_ImplGtk3Cogl_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGtk3Cogl_GetClipboardText;
io.ClipboardUserData = gtk_widget_get_clipboard(g_GtkWidget,
GDK_SELECTION_CLIPBOARD);
g_Callback = callback;
g_CallbackData = data;
GdkFrameClock *clock = gdk_window_get_frame_clock(g_GdkWindow);
g_signal_connect(clock, "paint", G_CALLBACK(handle_repaint), NULL);
gdk_frame_clock_request_phase(clock, GDK_FRAME_CLOCK_PHASE_PAINT);
gdk_window_show(g_GdkWindow);
return COGL_ONSCREEN(g_Framebuffer);
}