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- /* GIMP - The GNU Image Manipulation Program
- * Copyright (C) 1995 Spencer Kimball and Peter Mattis
- *
- * gimpinputdevicestore-dx.c
- * Input device store based on DirectX.
- * Copyright (C) 2007 Sven Neumann <sven@gimp.org>
- * Copyright (C) 2007 Tor Lillqvist <tml@novell.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
- #include "config.h"
- #include <string.h>
- #include <gtk/gtk.h>
- #ifdef HAVE_DX_DINPUT
- #include <windows.h>
- #include <dinput.h>
- #include <rpc.h>
- #ifndef GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
- #define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS 0x00000004
- #endif
- #include <gdk/gdkwin32.h>
- #include "libgimpmodule/gimpmodule.h"
- #include "gimpinputdevicestore.h"
- enum
- {
- COLUMN_GUID,
- COLUMN_LABEL,
- COLUMN_IDEVICE,
- NUM_COLUMNS
- };
- enum
- {
- DEVICE_ADDED,
- DEVICE_REMOVED,
- LAST_SIGNAL
- };
- typedef struct _GimpInputDeviceStoreClass GimpInputDeviceStoreClass;
- struct _GimpInputDeviceStore
- {
- GtkListStore parent_instance;
- GdkWindow *window;
- LPDIRECTINPUT8W directinput8;
- GError *error;
- };
- struct _GimpInputDeviceStoreClass
- {
- GtkListStoreClass parent_class;
- void (* device_added) (GimpInputDeviceStore *store,
- const gchar *udi);
- void (* device_removed) (GimpInputDeviceStore *store,
- const gchar *udi);
- };
- static void gimp_input_device_store_finalize (GObject *object);
- static gboolean gimp_input_device_store_add (GimpInputDeviceStore *store,
- const GUID *guid);
- static gboolean gimp_input_device_store_remove (GimpInputDeviceStore *store,
- const gchar *udi);
- G_DEFINE_DYNAMIC_TYPE (GimpInputDeviceStore, gimp_input_device_store,
- GTK_TYPE_LIST_STORE)
- static guint store_signals[LAST_SIGNAL] = { 0 };
- void
- gimp_input_device_store_register_types (GTypeModule *module)
- {
- gimp_input_device_store_register_type (module);
- }
- static void
- gimp_input_device_store_class_init (GimpInputDeviceStoreClass *klass)
- {
- GObjectClass *object_class = G_OBJECT_CLASS (klass);
- store_signals[DEVICE_ADDED] =
- g_signal_new ("device-added",
- G_TYPE_FROM_CLASS (klass),
- G_SIGNAL_RUN_FIRST,
- G_STRUCT_OFFSET (GimpInputDeviceStoreClass, device_added),
- NULL, NULL, NULL,
- G_TYPE_NONE, 1, G_TYPE_STRING);
- store_signals[DEVICE_REMOVED] =
- g_signal_new ("device-removed",
- G_TYPE_FROM_CLASS (klass),
- G_SIGNAL_RUN_FIRST,
- G_STRUCT_OFFSET (GimpInputDeviceStoreClass, device_removed),
- NULL, NULL, NULL,
- G_TYPE_NONE, 1, G_TYPE_STRING);
- object_class->finalize = gimp_input_device_store_finalize;
- klass->device_added = NULL;
- klass->device_removed = NULL;
- }
- static void
- gimp_input_device_store_class_finalize (GimpInputDeviceStoreClass *klass)
- {
- }
- static GdkFilterReturn
- aux_window_filter (GdkXEvent *xevent,
- GdkEvent *event,
- gpointer data)
- {
- #if 0
- GimpInputDeviceStore *store = (GimpInputDeviceStore *) data;
- const MSG *msg = (MSG *) xevent;
- /* Look for deviced being added or removed */
- switch (msg->message)
- {
- }
- #endif
- return GDK_FILTER_REMOVE;
- }
- static GdkWindow *
- create_aux_window (GimpInputDeviceStore *store)
- {
- GdkWindowAttr wa;
- GdkWindow *retval;
- /* Create a dummy window to be associated with DirectInput devices */
- wa.wclass = GDK_INPUT_OUTPUT;
- wa.event_mask = GDK_ALL_EVENTS_MASK;
- wa.width = 2;
- wa.height = 2;
- wa.x = -100;
- wa.y = -100;
- wa.window_type = GDK_WINDOW_TOPLEVEL;
- if ((retval = gdk_window_new (NULL, &wa, GDK_WA_X|GDK_WA_Y)) == NULL)
- return NULL;
- g_object_ref (retval);
- gdk_window_add_filter (retval, aux_window_filter, store);
- return retval;
- }
- static BOOL CALLBACK
- enum_devices (const DIDEVICEINSTANCEW *di,
- void *user_data)
- {
- GimpInputDeviceStore *store = (GimpInputDeviceStore *) user_data;
- gimp_input_device_store_add (store, &di->guidInstance);
- return DIENUM_CONTINUE;
- }
- static void
- gimp_input_device_store_init (GimpInputDeviceStore *store)
- {
- GType types[] = { G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER };
- HRESULT hresult;
- HMODULE thismodule;
- HMODULE dinput8;
- typedef HRESULT (WINAPI *t_DirectInput8Create) (HINSTANCE, DWORD, REFIID, LPVOID *, LPUNKNOWN);
- t_DirectInput8Create p_DirectInput8Create;
- g_assert (G_N_ELEMENTS (types) == NUM_COLUMNS);
- gtk_list_store_set_column_types (GTK_LIST_STORE (store),
- G_N_ELEMENTS (types), types);
- if (!GetModuleHandleExW (GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
- GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
- (LPCWSTR) &gimp_input_device_store_init,
- &thismodule))
- return;
- if ((store->window = create_aux_window (store)) == NULL)
- {
- g_set_error_literal (&store->error, GIMP_MODULE_ERROR, GIMP_MODULE_FAILED,
- "Could not create aux window");
- return;
- }
- if ((dinput8 = LoadLibraryW (L"dinput8.dll")) == NULL)
- {
- g_set_error_literal (&store->error, GIMP_MODULE_ERROR, GIMP_MODULE_FAILED,
- "Could not load dinput8.dll");
- return;
- }
- if ((p_DirectInput8Create = (t_DirectInput8Create) GetProcAddress (dinput8, "DirectInput8Create")) == NULL)
- {
- g_set_error_literal (&store->error, GIMP_MODULE_ERROR, GIMP_MODULE_FAILED,
- "Could not find DirectInput8Create in dinput8.dll");
- return;
- }
- if (FAILED ((hresult = (*p_DirectInput8Create) (thismodule,
- DIRECTINPUT_VERSION,
- &IID_IDirectInput8W,
- (LPVOID *) &store->directinput8,
- NULL))))
- {
- g_set_error (&store->error, GIMP_MODULE_ERROR, GIMP_MODULE_FAILED,
- "DirectInput8Create failed: %s",
- g_win32_error_message (hresult));
- return;
- }
- if (FAILED ((hresult = IDirectInput8_EnumDevices (store->directinput8,
- DI8DEVCLASS_GAMECTRL,
- enum_devices,
- store,
- DIEDFL_ATTACHEDONLY))))
- {
- g_set_error (&store->error, GIMP_MODULE_ERROR, GIMP_MODULE_FAILED,
- "IDirectInput8::EnumDevices failed: %s",
- g_win32_error_message (hresult));
- return;
- }
- }
- static void
- gimp_input_device_store_finalize (GObject *object)
- {
- GimpInputDeviceStore *store = GIMP_INPUT_DEVICE_STORE (object);
- if (store->directinput8)
- {
- IDirectInput8_Release (store->directinput8);
- store->directinput8 = NULL;
- }
- if (store->error)
- {
- g_error_free (store->error);
- store->error = NULL;
- }
- G_OBJECT_CLASS (gimp_input_device_store_parent_class)->finalize (object);
- }
- static gboolean
- gimp_input_device_store_lookup (GimpInputDeviceStore *store,
- const gchar *guid,
- GtkTreeIter *iter)
- {
- GtkTreeModel *model = GTK_TREE_MODEL (store);
- GValue value = G_VALUE_INIT;
- gboolean iter_valid;
- for (iter_valid = gtk_tree_model_get_iter_first (model, iter);
- iter_valid;
- iter_valid = gtk_tree_model_iter_next (model, iter))
- {
- const gchar *str;
- gtk_tree_model_get_value (model, iter, COLUMN_GUID, &value);
- str = g_value_get_string (&value);
- if (strcmp (str, guid) == 0)
- {
- g_value_unset (&value);
- break;
- }
- g_value_unset (&value);
- }
- return iter_valid;
- }
- /* insert in alphabetic order */
- static void
- gimp_input_device_store_insert (GimpInputDeviceStore *store,
- const gchar *guid,
- const gchar *label,
- LPDIRECTINPUTDEVICE8W didevice8)
- {
- GtkTreeModel *model = GTK_TREE_MODEL (store);
- GtkTreeIter iter;
- GValue value = G_VALUE_INIT;
- gint pos = 0;
- gboolean iter_valid;
- for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);
- iter_valid;
- iter_valid = gtk_tree_model_iter_next (model, &iter), pos++)
- {
- const gchar *str;
- gtk_tree_model_get_value (model, &iter, COLUMN_LABEL, &value);
- str = g_value_get_string (&value);
- if (g_utf8_collate (label, str) < 0)
- {
- g_value_unset (&value);
- break;
- }
- g_value_unset (&value);
- }
- gtk_list_store_insert_with_values (GTK_LIST_STORE (store), &iter, pos,
- COLUMN_GUID, guid,
- COLUMN_LABEL, label,
- COLUMN_IDEVICE, didevice8,
- -1);
- }
- static gboolean
- gimp_input_device_store_add (GimpInputDeviceStore *store,
- const GUID *guid)
- {
- HRESULT hresult;
- LPDIRECTINPUTDEVICE8W didevice8;
- DIDEVICEINSTANCEW di;
- gboolean added = FALSE;
- unsigned char *s;
- gchar *guidstring;
- gchar *name;
- if (UuidToString (guid, &s) != S_OK)
- return FALSE;
- guidstring = g_strdup (s);
- RpcStringFree (&s);
- if (FAILED ((hresult = IDirectInput8_CreateDevice (store->directinput8,
- guid,
- &didevice8,
- NULL))))
- {
- g_free (guidstring);
- return FALSE;
- }
- if (FAILED ((hresult = IDirectInputDevice8_SetCooperativeLevel (didevice8,
- (HWND) gdk_win32_window_get_handle (store->window),
- DISCL_NONEXCLUSIVE | DISCL_BACKGROUND))))
- {
- g_warning ("IDirectInputDevice8::SetCooperativeLevel failed: %s",
- g_win32_error_message (hresult));
- g_free (guidstring);
- return FALSE;
- }
- di.dwSize = sizeof (DIDEVICEINSTANCEW);
- if (FAILED ((hresult = IDirectInputDevice8_GetDeviceInfo (didevice8,
- &di))))
- {
- g_warning ("IDirectInputDevice8::GetDeviceInfo failed: %s",
- g_win32_error_message (hresult));
- g_free (guidstring);
- return FALSE;
- }
- name = g_utf16_to_utf8 (di.tszInstanceName, -1, NULL, NULL, NULL);
- gimp_input_device_store_insert (store, guidstring, name, didevice8);
- return added;
- }
- static gboolean
- gimp_input_device_store_remove (GimpInputDeviceStore *store,
- const gchar *guid)
- {
- GtkTreeIter iter;
- if (gimp_input_device_store_lookup (store, guid, &iter))
- {
- gtk_list_store_remove (GTK_LIST_STORE (store), &iter);
- return TRUE;
- }
- return FALSE;
- }
- #if 0
- static void
- gimp_input_device_store_device_added (LibHalContext *ctx,
- const char *guid)
- {
- GimpInputDeviceStore *store = libhal_ctx_get_user_data (ctx);
- if (gimp_input_device_store_add (store, udi))
- {
- g_signal_emit (store, store_signals[DEVICE_ADDED], 0, udi);
- }
- }
- static void
- gimp_input_device_store_device_removed (LibHalContext *ctx,
- const char *udi)
- {
- GimpInputDeviceStore *store = libhal_ctx_get_user_data (ctx);
- if (gimp_input_device_store_remove (store, udi))
- {
- g_signal_emit (store, store_signals[DEVICE_REMOVED], 0, udi);
- }
- }
- #endif
- GimpInputDeviceStore *
- gimp_input_device_store_new (void)
- {
- return g_object_new (GIMP_TYPE_INPUT_DEVICE_STORE, NULL);
- }
- gchar *
- gimp_input_device_store_get_device_file (GimpInputDeviceStore *store,
- const gchar *udi)
- {
- GtkTreeIter iter;
- GValue value = G_VALUE_INIT;
- g_return_val_if_fail (GIMP_IS_INPUT_DEVICE_STORE (store), NULL);
- g_return_val_if_fail (udi != NULL, NULL);
- if (! store->directinput8)
- return NULL;
- if (gimp_input_device_store_lookup (store, udi, &iter))
- {
- gtk_tree_model_get_value (GTK_TREE_MODEL (store),
- &iter, COLUMN_IDEVICE, &value);
- return g_value_get_pointer (&value);
- }
- return NULL;
- }
- GError *
- gimp_input_device_store_get_error (GimpInputDeviceStore *store)
- {
- g_return_val_if_fail (GIMP_IS_INPUT_DEVICE_STORE (store), NULL);
- return store->error ? g_error_copy (store->error) : NULL;
- }
- #endif /* HAVE_DX_DINPUT */
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