--- /dev/null
+/*****************************************************************************
+ * androidsurface.c: android video output using Surface Flinger
+ *****************************************************************************
+ * Copyright © 2011 VideoLAN
+ *
+ * Authors: Ming Hu <tewilove@gmail.com>
+ * Ludovic Fauvet <etix@l0cal.com>
+ * Sébastien Toque <xilasz@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_vout_display.h>
+#include <vlc_picture_pool.h>
+
+#include <dlfcn.h>
+
+#ifndef ANDROID_SYM_S_LOCK
+# define ANDROID_SYM_S_LOCK "_ZN7android7Surface4lockEPNS0_11SurfaceInfoEb"
+#endif
+#ifndef ANDROID_SYM_S_UNLOCK
+# define ANDROID_SYM_S_UNLOCK "_ZN7android7Surface13unlockAndPostEv"
+#endif
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+
+static int Open (vlc_object_t *);
+static void Close(vlc_object_t *);
+
+vlc_module_begin()
+ set_category(CAT_VIDEO)
+ set_subcategory(SUBCAT_VIDEO_VOUT)
+ set_shortname("AndroidSurface")
+ set_description(N_("Android Surface video output"))
+ set_capability("vout display", 155)
+ add_shortcut("androidsurface", "android")
+ set_callbacks(Open, Close)
+vlc_module_end()
+
+/*****************************************************************************
+ * JNI prototypes
+ *****************************************************************************/
+
+extern void *jni_LockAndGetAndroidSurface();
+extern void jni_UnlockAndroidSurface();
+extern void jni_SetAndroidSurfaceSize(int width, int height);
+
+// _ZN7android7Surface4lockEPNS0_11SurfaceInfoEb
+typedef void (*Surface_lock)(void *, void *, int);
+// _ZN7android7Surface13unlockAndPostEv
+typedef void (*Surface_unlockAndPost)(void *);
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+
+static picture_pool_t *Pool (vout_display_t *, unsigned);
+static void Display(vout_display_t *, picture_t *, subpicture_t *);
+static int Control(vout_display_t *, int, va_list);
+
+/* */
+struct vout_display_sys_t {
+ picture_pool_t *pool;
+ void *p_library;
+ Surface_lock s_lock;
+ Surface_unlockAndPost s_unlockAndPost;
+
+ picture_resource_t resource;
+};
+
+/* */
+typedef struct _SurfaceInfo {
+ uint32_t w;
+ uint32_t h;
+ uint32_t s;
+ uint32_t usage;
+ uint32_t format;
+ uint32_t* bits;
+ uint32_t reserved[2];
+} SurfaceInfo;
+
+struct picture_sys_t
+{
+ void *surf;
+ SurfaceInfo info;
+ vout_display_sys_t *sys;
+};
+
+static int AndroidLockSurface(picture_t *);
+static void AndroidUnlockSurface(picture_t *);
+
+static vlc_mutex_t single_instance = VLC_STATIC_MUTEX;
+
+static inline void *LoadSurface(const char *psz_lib, vout_display_sys_t *sys) {
+ void *p_library = dlopen(psz_lib, RTLD_NOW);
+ if (p_library) {
+ sys->s_lock = (Surface_lock)(dlsym(p_library, ANDROID_SYM_S_LOCK));
+ sys->s_unlockAndPost =
+ (Surface_unlockAndPost)(dlsym(p_library, ANDROID_SYM_S_UNLOCK));
+ if (sys->s_lock && sys->s_unlockAndPost) {
+ return p_library;
+ }
+ dlclose(p_library);
+ }
+ return NULL;
+}
+
+static void *InitLibrary(vout_display_sys_t *sys) {
+ void *p_library;
+ if ((p_library = LoadSurface("libsurfaceflinger_client.so", sys)))
+ return p_library;
+ return LoadSurface("libui.so", sys);
+}
+
+static int Open(vlc_object_t *p_this) {
+ vout_display_t *vd = (vout_display_t *)p_this;
+ vout_display_sys_t *sys;
+ void *p_library;
+
+ /* */
+ if (vlc_mutex_trylock(&single_instance) != 0) {
+ msg_Err(vd, "Can't start more than one instance at a time");
+ return VLC_EGENERIC;
+ }
+
+ /* Allocate structure */
+ sys = (struct vout_display_sys_t*) calloc(1, sizeof(*sys));
+ if (!sys) {
+ vlc_mutex_unlock(&single_instance);
+ return VLC_ENOMEM;
+ }
+
+ /* */
+ sys->p_library = p_library = InitLibrary(sys);
+ if (!p_library) {
+ free(sys);
+ msg_Err(vd, "Could not initialize libui.so/libsurfaceflinger_client.so!");
+ vlc_mutex_unlock(&single_instance);
+ return VLC_EGENERIC;
+ }
+
+ /* Setup chroma */
+ video_format_t fmt = vd->fmt;
+ fmt.i_chroma = VLC_CODEC_RGB32;
+ fmt.i_rmask = 0x000000ff;
+ fmt.i_gmask = 0x0000ff00;
+ fmt.i_bmask = 0x00ff0000;
+ video_format_FixRgb(&fmt);
+
+ /* Create the associated picture */
+ picture_resource_t *rsc = &sys->resource;
+ rsc->p_sys = malloc(sizeof(*rsc->p_sys));
+ if (!rsc->p_sys)
+ goto enomem;
+ rsc->p_sys->sys = sys;
+
+ for (int i = 0; i < PICTURE_PLANE_MAX; i++) {
+ rsc->p[i].p_pixels = NULL;
+ rsc->p[i].i_pitch = 0;
+ rsc->p[i].i_lines = 0;
+ }
+ picture_t *picture = picture_NewFromResource(&fmt, rsc);
+ if (!picture)
+ goto enomem;
+
+ /* Wrap it into a picture pool */
+ picture_pool_configuration_t pool_cfg;
+ memset(&pool_cfg, 0, sizeof(pool_cfg));
+ pool_cfg.picture_count = 1;
+ pool_cfg.picture = &picture;
+ pool_cfg.lock = AndroidLockSurface;
+ pool_cfg.unlock = AndroidUnlockSurface;
+
+ sys->pool = picture_pool_NewExtended(&pool_cfg);
+ if (!sys->pool) {
+ picture_Release(picture);
+ goto enomem;
+ }
+
+ /* Setup vout_display */
+ vd->sys = sys;
+ vd->fmt = fmt;
+ vd->pool = Pool;
+ vd->display = Display;
+ vd->control = Control;
+ vd->prepare = NULL;
+ vd->manage = NULL;
+
+ /* Fix initial state */
+ vout_display_SendEventFullscreen(vd, false);
+
+ return VLC_SUCCESS;
+
+enomem:
+ free(rsc->p_sys);
+ free(sys);
+ dlclose(p_library);
+ vlc_mutex_unlock(&single_instance);
+ return VLC_ENOMEM;
+}
+
+static void Close(vlc_object_t *p_this) {
+ vout_display_t *vd = (vout_display_t *)p_this;
+ vout_display_sys_t *sys = vd->sys;
+
+ picture_pool_Delete(sys->pool);
+ dlclose(sys->p_library);
+ free(sys);
+ vlc_mutex_unlock(&single_instance);
+}
+
+static picture_pool_t *Pool(vout_display_t *vd, unsigned count) {
+ vout_display_sys_t *sys = vd->sys;
+ VLC_UNUSED(count);
+ return sys->pool;
+}
+
+static int AndroidLockSurface(picture_t *picture) {
+ picture_sys_t *picsys = picture->p_sys;
+ vout_display_sys_t *sys = picsys->sys;
+ SurfaceInfo *info;
+ uint32_t sw, sh;
+ void *surf;
+
+ sw = picture->p[0].i_visible_pitch / picture->p[0].i_pixel_pitch;
+ sh = picture->p[0].i_visible_lines;
+
+ picsys->surf = surf = jni_LockAndGetAndroidSurface();
+ info = &(picsys->info);
+
+ if (unlikely(!surf)) {
+ jni_UnlockAndroidSurface();
+ return VLC_EGENERIC;
+ }
+
+ sys->s_lock(surf, info, 1);
+
+ // input size doesn't match the surface size,
+ // request a resize
+ if (info->w != sw || info->h != sh) {
+ jni_SetAndroidSurfaceSize(sw, sh);
+ sys->s_unlockAndPost(surf);
+ jni_UnlockAndroidSurface();
+ return VLC_EGENERIC;
+ }
+
+ picture->p->p_pixels = (uint8_t*)info->bits;
+ picture->p->i_pitch = 4 * info->s;
+ picture->p->i_lines = info->h;
+
+ return VLC_SUCCESS;
+}
+
+static void AndroidUnlockSurface(picture_t *picture) {
+ picture_sys_t *picsys = picture->p_sys;
+ vout_display_sys_t *sys = picsys->sys;
+
+ if (likely(picsys->surf))
+ sys->s_unlockAndPost(picsys->surf);
+ jni_UnlockAndroidSurface();
+}
+
+static void Display(vout_display_t *vd, picture_t *picture, subpicture_t *subpicture) {
+ VLC_UNUSED(vd);
+ VLC_UNUSED(subpicture);
+ picture_Release(picture);
+}
+
+static int Control(vout_display_t *vd, int query, va_list args) {
+ VLC_UNUSED(args);
+
+ switch (query) {
+ case VOUT_DISPLAY_CHANGE_FULLSCREEN:
+ case VOUT_DISPLAY_CHANGE_WINDOW_STATE:
+ case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE:
+ case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED:
+ case VOUT_DISPLAY_CHANGE_ZOOM:
+ case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT:
+ case VOUT_DISPLAY_CHANGE_SOURCE_CROP:
+ case VOUT_DISPLAY_GET_OPENGL:
+ return VLC_EGENERIC;
+ case VOUT_DISPLAY_HIDE_MOUSE:
+ return VLC_SUCCESS;
+ default:
+ msg_Err(vd, "Unknown request in android vout display");
+ return VLC_EGENERIC;
+ }
+}
projects / vlc / commitdiff