/**
* Get the frame buffer sizes.
* @param root The window (Unused).
* @param num The number of sizes.
* @return The sizes.
*
* Get the list of possible frame buffer sizes (at the normal
* orientation supported by the screen associated to @p window (passed
* to ecore_x_randr_get_screen_info_prefetch()). Each size indicates
* both the linear physical size of the screen and the pixel size.
*
* To use this function, you must call before, and in order,
* ecore_x_randr_get_screen_info_prefetch(), which sends the GetScreenInfo request,
* then ecore_x_randr_get_screen_info_fetch(), which gets the reply.
* @ingroup Ecore_X_RandR_Group
*/
EAPI Ecore_X_Screen_Size *
ecore_x_randr_screen_sizes_get(Ecore_X_Window root __UNUSED__,
int *num)
{
#ifdef ECORE_XCB_RANDR
xcb_randr_get_screen_info_reply_t *reply;
xcb_randr_screen_size_t *sizes;
Ecore_X_Screen_Size *ret;
int n;
int i;
if (num) *num = 0;
reply = _ecore_xcb_reply_get();
if (!reply)
return NULL;
n = xcb_randr_get_screen_info_sizes_length(reply);
ret = calloc(n, sizeof(Ecore_X_Screen_Size));
if (!ret) return NULL;
if (num) *num = n;
sizes = xcb_randr_get_screen_info_sizes(reply);
for (i = 0; i < n; i++)
{
ret[i].width = sizes[i].width;
ret[i].height = sizes[i].height;
}
return ret;
#else
if (num) *num = 0;
return NULL;
#endif /* ECORE_XCB_RANDR */
}
/**
* Get the current frame buffer size.
* @param root The window (Unused).
* @return The active size.
*
* Get the active frame buffer size supported by the screen associated
* to @p window (passed to
* ecore_x_randr_get_screen_info_prefetch()).
*
* To use this function, you must call before, and in order,
* ecore_x_randr_get_screen_info_prefetch(), which sends the GetScreenInfo request,
* then ecore_x_randr_get_screen_info_fetch(), which gets the reply.
* @ingroup Ecore_X_RandR_Group
*/
EAPI Ecore_X_Screen_Size
ecore_x_randr_current_screen_size_get(Ecore_X_Window root __UNUSED__)
{
Ecore_X_Screen_Size ret = { -1, -1 };
#ifdef ECORE_XCB_RANDR
xcb_randr_get_screen_info_reply_t *reply;
xcb_randr_screen_size_t *sizes;
uint16_t size_index;
reply = _ecore_xcb_reply_get();
if (!reply)
return ret;
size_index = reply->sizeID;
sizes = xcb_randr_get_screen_info_sizes(reply);
if (size_index < reply->nSizes)
{
ret.width = sizes[size_index].width;
ret.height = sizes[size_index].height;
}
#endif /* ECORE_XCB_RANDR */
return ret;
}
std::vector<VideoMode> VideoModeImpl::getFullscreenModes()
{
std::vector<VideoMode> modes;
// Open a connection with the X server
xcb_connection_t* connection = OpenConnection();
// Retrieve the default screen
xcb_screen_t* screen = XCBDefaultScreen(connection);
ScopedXcbPtr<xcb_generic_error_t> error(NULL);
const xcb_query_extension_reply_t* randrExt = xcb_get_extension_data(connection, &xcb_randr_id);
if (!randrExt || !randrExt->present)
{
// Randr extension is not supported: we cannot get the video modes
err() << "Failed to use the RandR extension while trying to get the supported video modes" << std::endl;
// Close the connection with the X server
CloseConnection(connection);
return modes;
}
// Load RandR and check its version
ScopedXcbPtr<xcb_randr_query_version_reply_t> randrVersion(xcb_randr_query_version_reply(
connection,
xcb_randr_query_version(
connection,
1,
1
),
&error
));
if (error)
{
err() << "Failed to load the RandR extension while trying to get the supported video modes" << std::endl;
// Close the connection with the X server
CloseConnection(connection);
return modes;
}
// Get the current configuration
ScopedXcbPtr<xcb_randr_get_screen_info_reply_t> config(xcb_randr_get_screen_info_reply(
connection,
xcb_randr_get_screen_info(
connection,
screen->root
),
&error
));
if (error)
{
// Failed to get the screen configuration
err() << "Failed to retrieve the screen configuration while trying to get the supported video modes" << std::endl;
// Close the connection with the X server
CloseConnection(connection);
return modes;
}
// Get the available screen sizes
xcb_randr_screen_size_t* sizes = xcb_randr_get_screen_info_sizes(config.get());
if (sizes && (config->nSizes > 0))
{
// Get the list of supported depths
xcb_depth_iterator_t iter = xcb_screen_allowed_depths_iterator(screen);
// Combine depths and sizes to fill the array of supported modes
for (; iter.rem; xcb_depth_next(&iter))
{
for (int j = 0; j < config->nSizes; ++j)
{
// Convert to VideoMode
VideoMode mode(sizes[j].width, sizes[j].height, iter.data->depth);
if (config->rotation == XCB_RANDR_ROTATION_ROTATE_90 ||
config->rotation == XCB_RANDR_ROTATION_ROTATE_270)
std::swap(mode.width, mode.height);
// Add it only if it is not already in the array
if (std::find(modes.begin(), modes.end(), mode) == modes.end())
modes.push_back(mode);
}
}
}
// Close the connection with the X server
CloseConnection(connection);
return modes;
}
VideoMode VideoModeImpl::getDesktopMode()
{
VideoMode desktopMode;
// Open a connection with the X server
xcb_connection_t* connection = OpenConnection();
// Retrieve the default screen
xcb_screen_t* screen = XCBDefaultScreen(connection);
ScopedXcbPtr<xcb_generic_error_t> error(NULL);
// Check if the RandR extension is present
const xcb_query_extension_reply_t* randrExt = xcb_get_extension_data(connection, &xcb_randr_id);
if (!randrExt || !randrExt->present)
{
// Randr extension is not supported: we cannot get the video modes
err() << "Failed to use the RandR extension while trying to get the desktop video mode" << std::endl;
// Close the connection with the X server
CloseConnection(connection);
return desktopMode;
}
// Load RandR and check its version
ScopedXcbPtr<xcb_randr_query_version_reply_t> randrVersion(xcb_randr_query_version_reply(
connection,
xcb_randr_query_version(
connection,
1,
1
),
&error
));
if (error)
{
err() << "Failed to load the RandR extension while trying to get the desktop video mode" << std::endl;
// Close the connection with the X server
CloseConnection(connection);
return desktopMode;
}
// Get the current configuration
ScopedXcbPtr<xcb_randr_get_screen_info_reply_t> config(xcb_randr_get_screen_info_reply(
connection,
xcb_randr_get_screen_info(
connection,
screen->root
),
&error
));
if (error)
{
// Failed to get the screen configuration
err() << "Failed to retrieve the screen configuration while trying to get the desktop video mode" << std::endl;
// Close the connection with the X server
CloseConnection(connection);
return desktopMode;
}
// Get the current video mode
xcb_randr_mode_t currentMode = config->sizeID;
// Get the available screen sizes
int nbSizes = xcb_randr_get_screen_info_sizes_length(config.get());
xcb_randr_screen_size_t* sizes = xcb_randr_get_screen_info_sizes(config.get());
if (sizes && (nbSizes > 0))
{
desktopMode = VideoMode(sizes[currentMode].width, sizes[currentMode].height, screen->root_depth);
if (config->rotation == XCB_RANDR_ROTATION_ROTATE_90 ||
config->rotation == XCB_RANDR_ROTATION_ROTATE_270)
std::swap(desktopMode.width, desktopMode.height);
}
else
{
err() << "Failed to retrieve any screen sizes while trying to get the desktop video mode" << std::endl;
}
// Close the connection with the X server
CloseConnection(connection);
return desktopMode;
}
