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/**************************************************************************
*
* Copyright 2010, 2011 BMW Car IT GmbH
* Copyright (C) 2011 DENSO CORPORATION and Robert Bosch Car Multimedia Gmbh
*
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "WLContext.h"
#define WL_UNUSED(A) (A)=(A)
//////////////////////////////////////////////////////////////////////////////
static struct wl_registry_listener registryListener = {
WLContext::RegistryHandleGlobal,
NULL
};
static struct wl_seat_listener seatListener = {
WLContext::SeatHandleCapabilities,
NULL
};
//////////////////////////////////////////////////////////////////////////////
WLContext::WLContext()
: m_wlDisplay(NULL)
, m_wlRegistry(NULL)
, m_wlCompositor(NULL)
, m_iviApp(NULL)
, m_wlPointerListener(NULL)
, m_wlKeyboardListener(NULL)
, m_wlTouchListener(NULL)
, m_wlCursorTheme(NULL)
, m_wlCursor(NULL)
, m_wlShm(NULL)
{
}
WLContext::~WLContext()
{
DestroyWLContext();
}
//////////////////////////////////////////////////////////////////////////////
/*
* The following correspondences between file names and cursors was copied
* from: https://bugs.kde.org/attachment.cgi?id=67313
*/
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
static const char *left_ptrs[] = {
"left_ptr",
"default",
"top_left_arrow",
"left-arrow"
};
static void
create_cursors(WLContext* wlContext)
{
int size = 32;
unsigned int j;
struct wl_cursor *cursor = NULL;
wlContext->SetWLCursorTheme(wl_cursor_theme_load(NULL, size, wlContext->GetWLShm()));
if (!wlContext->GetWLCursorTheme()) {
fprintf(stderr, "could not load default theme\n");
return;
}
for (j = 0; !cursor && j < ARRAY_SIZE(left_ptrs); ++j)
cursor = wl_cursor_theme_get_cursor(wlContext->GetWLCursorTheme(),
left_ptrs[j]);
if (!cursor)
fprintf(stderr, "could not load any cursor\n");
wlContext->SetWLCursor(cursor);
}
void
WLContext::RegistryHandleGlobal(void* data,
struct wl_registry* registry,
uint32_t name,
const char* interface,
uint32_t version)
{
WL_UNUSED(version);
WLContext* surface = static_cast<WLContext*>(data);
assert(surface);
do {
if (!strcmp(interface, "wl_compositor")){
surface->SetWLCompositor(
(wl_compositor*)wl_registry_bind(registry,
name,
&wl_compositor_interface,
1));
break;
}
if (!strcmp(interface, "ivi_application")){
surface->SetIviApp(
(struct ivi_application*)wl_registry_bind(registry,
name,
&ivi_application_interface,
1));
}
if (!strcmp(interface, "wl_shm")){
surface->SetWLShm(
(struct wl_shm*)wl_registry_bind(registry,
name,
&wl_shm_interface,
1));
}
if (!strcmp(interface, "wl_seat")){
struct seat_data *seat_data = (struct seat_data *)calloc(1, sizeof *seat_data);
seat_data->ctx = surface;
seat_data->wlSeat = (wl_seat*)wl_registry_bind(
registry, name, &wl_seat_interface, 1);
wl_seat_add_listener(seat_data->wlSeat, &seatListener,
(void *)seat_data);
}
} while (0);
}
void
WLContext::SeatHandleCapabilities(void* data, struct wl_seat* seat, uint32_t caps)
{
struct seat_data* context =
static_cast<struct seat_data*>(data);
assert(context);
if ((caps & WL_SEAT_CAPABILITY_POINTER) && !context->wlPointer){
context->wlPointer = wl_seat_get_pointer(seat);
wl_pointer_set_user_data(context->wlPointer, data);
wl_pointer_add_listener(context->wlPointer,
context->ctx->GetWLPointerListener(), data);
// create cursors
create_cursors(context->ctx);
context->ctx->SetPointerSurface(wl_compositor_create_surface(context->ctx->GetWLCompositor()));
} else
if (!(caps & WL_SEAT_CAPABILITY_POINTER) && context->wlPointer){
wl_pointer_destroy(context->wlPointer);
context->wlPointer = NULL;
if (context->ctx->GetPointerSurface()){
wl_surface_destroy(context->ctx->GetPointerSurface());
context->ctx->SetPointerSurface(NULL);
}
if (context->ctx->GetWLCursorTheme()){
wl_cursor_theme_destroy(context->ctx->GetWLCursorTheme());
context->ctx->SetWLCursor(NULL);
}
}
if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !context->wlKeyboard){
context->wlKeyboard = wl_seat_get_keyboard(seat);
wl_keyboard_set_user_data(context->wlKeyboard, data);
wl_keyboard_add_listener(context->wlKeyboard,
context->ctx->GetWLKeyboardListener(), data);
} else
if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && context->wlKeyboard){
wl_keyboard_destroy(context->wlKeyboard);
context->wlKeyboard = NULL;
}
if ((caps & WL_SEAT_CAPABILITY_TOUCH) && !context->wlTouch){
context->wlTouch = wl_seat_get_touch(seat);
wl_touch_set_user_data(context->wlTouch, data);
wl_touch_add_listener(context->wlTouch, context->ctx->GetWLTouchListener(), data);
} else
if (!(caps & WL_SEAT_CAPABILITY_TOUCH) && context->wlTouch){
wl_touch_destroy(context->wlTouch);
context->wlTouch = NULL;
}
wl_display_dispatch(context->ctx->GetWLDisplay());
}
//////////////////////////////////////////////////////////////////////////////
bool
WLContext::InitWLContext(const struct wl_pointer_listener* wlPointerListener,
const struct wl_keyboard_listener* wlKeyboardListener,
const struct wl_touch_listener* wlTouchListener)
{
m_wlPointerListener = const_cast<wl_pointer_listener*>(wlPointerListener);
m_wlKeyboardListener = const_cast<wl_keyboard_listener*>(wlKeyboardListener);
m_wlTouchListener = const_cast<wl_touch_listener*>(wlTouchListener);
m_wlDisplay = wl_display_connect(NULL);
m_wlRegistry = wl_display_get_registry(m_wlDisplay);
wl_registry_add_listener(m_wlRegistry, ®istryListener, this);
wl_display_dispatch(m_wlDisplay);
wl_display_roundtrip(m_wlDisplay);
return true;
}
void
WLContext::DestroyWLContext()
{
if (m_iviApp)
ivi_application_destroy(m_iviApp);
if (m_wlCompositor)
wl_compositor_destroy(m_wlCompositor);
if (m_pointerSurface){
wl_surface_destroy(m_pointerSurface);
m_pointerSurface = NULL;
}
if (m_wlCursorTheme){
wl_cursor_theme_destroy(m_wlCursorTheme);
m_wlCursorTheme = NULL;
m_wlCursor = NULL;
}
wl_registry_destroy(m_wlRegistry);
wl_display_flush(m_wlDisplay);
wl_display_disconnect(m_wlDisplay);
}
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