--- /dev/null
+/*****************************************************************************
+ * mmal.c: MMAL-based vout plugin for Raspberry Pi
+ *****************************************************************************
+ * Copyright © 2014 jusst technologies GmbH
+ * $Id$
+ *
+ * Authors: Dennis Hamester <dennis.hamester@gmail.com>
+ * Julian Scheel <julian@jusst.de>
+ *
+ * This program 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 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <math.h>
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_threads.h>
+#include <vlc_vout_display.h>
+
+#include <bcm_host.h>
+#include <interface/mmal/mmal.h>
+#include <interface/mmal/util/mmal_util.h>
+#include <interface/mmal/util/mmal_default_components.h>
+#include <interface/vmcs_host/vc_tvservice.h>
+#include <interface/vmcs_host/vc_dispmanx.h>
+
+/* This value must match the define in codec/mmal.c
+ * Think twice before changing this. Incorrect values cause havoc.
+ */
+#define NUM_ACTUAL_OPAQUE_BUFFERS 40
+
+#define MAX_BUFFERS_IN_TRANSIT 2
+#define VC_TV_MAX_MODE_IDS 127
+
+#define MMAL_LAYER_NAME "mmal-layer"
+#define MMAL_LAYER_TEXT N_("VideoCore layer where the video is displayed.")
+#define MMAL_LAYER_LONGTEXT N_("VideoCore layer where the video is displayed. Subpictures are displayed directly above and a black background directly below.")
+
+#define MMAL_ADJUST_REFRESHRATE_NAME "mmal-adjust-refreshrate"
+#define MMAL_ADJUST_REFRESHRATE_TEXT N_("Adjust HDMI refresh rate to the video.")
+#define MMAL_ADJUST_REFRESHRATE_LONGTEXT N_("Adjust HDMI refresh rate to the video.")
+
+static int Open(vlc_object_t *);
+static void Close(vlc_object_t *);
+
+vlc_module_begin()
+ set_shortname(N_("MMAL vout"))
+ set_description(N_("MMAL-based vout plugin for Raspberry Pi"))
+ set_capability("vout display", 90)
+ add_shortcut("mmal_vout")
+ add_integer(MMAL_LAYER_NAME, 1, MMAL_LAYER_TEXT, MMAL_LAYER_LONGTEXT, false)
+ add_bool(MMAL_ADJUST_REFRESHRATE_NAME, false, MMAL_ADJUST_REFRESHRATE_TEXT,
+ MMAL_ADJUST_REFRESHRATE_LONGTEXT, false)
+ set_callbacks(Open, Close)
+vlc_module_end()
+
+struct dmx_region_t {
+ struct dmx_region_t *next;
+ picture_t *picture;
+ VC_RECT_T bmp_rect;
+ VC_RECT_T src_rect;
+ VC_RECT_T dst_rect;
+ VC_DISPMANX_ALPHA_T alpha;
+ DISPMANX_ELEMENT_HANDLE_T element;
+ DISPMANX_RESOURCE_HANDLE_T resource;
+ int32_t pos_x;
+ int32_t pos_y;
+};
+
+struct vout_display_sys_t {
+ picture_t **pictures;
+ picture_pool_t *picture_pool;
+
+ MMAL_COMPONENT_T *component;
+ MMAL_PORT_T *input;
+ MMAL_POOL_T *pool;
+ struct dmx_region_t *dmx_region;
+ plane_t planes[3];
+
+ vlc_mutex_t buffer_mutex;
+ vlc_mutex_t manage_mutex;
+ vlc_cond_t buffer_cond;
+ uint32_t buffer_size;
+ int buffers_in_transit;
+ unsigned num_buffers;
+
+ DISPMANX_DISPLAY_HANDLE_T dmx_handle;
+ DISPMANX_ELEMENT_HANDLE_T bkg_element;
+ DISPMANX_RESOURCE_HANDLE_T bkg_resource;
+ unsigned display_width;
+ unsigned display_height;
+ bool need_configure_display;
+
+ int layer;
+ bool opaque;
+};
+
+struct picture_sys_t {
+ vout_display_t *vd;
+ MMAL_BUFFER_HEADER_T *buffer;
+ bool displayed;
+};
+
+static const vlc_fourcc_t subpicture_chromas[] = {
+ VLC_CODEC_RGBA,
+ 0
+};
+
+/* Utility functions */
+static inline uint32_t align(uint32_t x, uint32_t y);
+static int configure_display(vout_display_t *vd, const vout_display_cfg_t *cfg,
+ const video_format_t *fmt);
+
+/* VLC vout display callbacks */
+static picture_pool_t *vd_pool(vout_display_t *vd, unsigned count);
+static void vd_display(vout_display_t *vd, picture_t *picture,
+ subpicture_t *subpicture);
+static int vd_control(vout_display_t *vd, int query, va_list args);
+static void vd_manage(vout_display_t *vd);
+
+/* VLC picture pool */
+static int picture_lock(picture_t *picture);
+static void picture_unlock(picture_t *picture);
+
+/* MMAL callbacks */
+static void control_port_cb(MMAL_PORT_T *port, MMAL_BUFFER_HEADER_T *buffer);
+static void input_port_cb(MMAL_PORT_T *port, MMAL_BUFFER_HEADER_T *buffer);
+
+/* TV service */
+static int query_resolution(vout_display_t *vd, unsigned *width, unsigned *height);
+static void tvservice_cb(void *callback_data, uint32_t reason, uint32_t param1,
+ uint32_t param2);
+static void adjust_refresh_rate(vout_display_t *vd);
+
+/* DispManX */
+static void display_subpicture(vout_display_t *vd, subpicture_t *subpicture);
+static void close_dmx(vout_display_t *vd);
+static struct dmx_region_t *dmx_region_new(vout_display_t *vd,
+ DISPMANX_UPDATE_HANDLE_T update, subpicture_region_t *region);
+static void dmx_region_update(struct dmx_region_t *dmx_region,
+ DISPMANX_UPDATE_HANDLE_T update, picture_t *picture);
+static void dmx_region_delete(struct dmx_region_t *dmx_region,
+ DISPMANX_UPDATE_HANDLE_T update);
+static void show_background(vout_display_t *vd, bool enable);
+
+static int Open(vlc_object_t *object)
+{
+ vout_display_t *vd = (vout_display_t *)object;
+ vout_display_sys_t *sys;
+ uint32_t buffer_pitch, buffer_height;
+ vout_display_place_t place;
+ MMAL_DISPLAYREGION_T display_region;
+ uint32_t offsets[3];
+ MMAL_STATUS_T status;
+ int ret = VLC_SUCCESS;
+ unsigned i;
+
+ sys = calloc(1, sizeof(struct vout_display_sys_t));
+ if (!sys)
+ return VLC_ENOMEM;
+ vd->sys = sys;
+
+ sys->layer = var_InheritInteger(vd, MMAL_LAYER_NAME);
+ bcm_host_init();
+
+ vd->info.has_hide_mouse = true;
+ sys->opaque = vd->fmt.i_chroma == VLC_CODEC_MMAL_OPAQUE;
+
+ if (!sys->opaque)
+ vd->fmt.i_chroma = VLC_CODEC_I420;
+ vd->fmt.i_sar_num = vd->source.i_sar_num;
+ vd->fmt.i_sar_den = vd->source.i_sar_den;
+
+ buffer_pitch = align(vd->fmt.i_width, 32);
+ buffer_height = align(vd->fmt.i_height, 16);
+ sys->buffer_size = 3 * buffer_pitch * buffer_height / 2;
+
+ status = mmal_component_create(MMAL_COMPONENT_DEFAULT_VIDEO_RENDERER, &sys->component);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to create MMAL component %s (status=%"PRIx32" %s)",
+ MMAL_COMPONENT_DEFAULT_VIDEO_RENDERER, status, mmal_status_to_string(status));
+ ret = VLC_EGENERIC;
+ goto out;
+ }
+
+ sys->component->control->userdata = (struct MMAL_PORT_USERDATA_T *)vd;
+ status = mmal_port_enable(sys->component->control, control_port_cb);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to enable control port %s (status=%"PRIx32" %s)",
+ sys->component->control->name, status, mmal_status_to_string(status));
+ ret = VLC_EGENERIC;
+ goto out;
+ }
+
+ sys->input = sys->component->input[0];
+ sys->input->userdata = (struct MMAL_PORT_USERDATA_T *)vd;
+ if (sys->opaque)
+ sys->input->format->encoding = MMAL_ENCODING_OPAQUE;
+ else
+ sys->input->format->encoding = MMAL_ENCODING_I420;
+ sys->input->format->es->video.width = vd->fmt.i_width;
+ sys->input->format->es->video.height = vd->fmt.i_height;
+ sys->input->format->es->video.crop.x = 0;
+ sys->input->format->es->video.crop.y = 0;
+ sys->input->format->es->video.crop.width = vd->fmt.i_width;
+ sys->input->format->es->video.crop.height = vd->fmt.i_height;
+ sys->input->format->es->video.par.num = vd->source.i_sar_num;
+ sys->input->format->es->video.par.den = vd->source.i_sar_den;
+
+ status = mmal_port_format_commit(sys->input);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to commit format for input port %s (status=%"PRIx32" %s)",
+ sys->input->name, status, mmal_status_to_string(status));
+ ret = VLC_EGENERIC;
+ goto out;
+ }
+ sys->input->buffer_size = sys->input->buffer_size_recommended;
+
+ vout_display_PlacePicture(&place, &vd->source, vd->cfg, false);
+ display_region.hdr.id = MMAL_PARAMETER_DISPLAYREGION;
+ display_region.hdr.size = sizeof(MMAL_DISPLAYREGION_T);
+ display_region.fullscreen = MMAL_FALSE;
+ display_region.src_rect.x = vd->fmt.i_x_offset;
+ display_region.src_rect.y = vd->fmt.i_y_offset;
+ display_region.src_rect.width = vd->fmt.i_visible_width;
+ display_region.src_rect.height = vd->fmt.i_visible_height;
+ display_region.dest_rect.x = place.x;
+ display_region.dest_rect.y = place.y;
+ display_region.dest_rect.width = place.width;
+ display_region.dest_rect.height = place.height;
+ display_region.layer = sys->layer;
+ display_region.set = MMAL_DISPLAY_SET_FULLSCREEN | MMAL_DISPLAY_SET_SRC_RECT |
+ MMAL_DISPLAY_SET_DEST_RECT | MMAL_DISPLAY_SET_LAYER;
+ status = mmal_port_parameter_set(sys->input, &display_region.hdr);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to set display region (status=%"PRIx32" %s)",
+ status, mmal_status_to_string(status));
+ ret = VLC_EGENERIC;
+ goto out;
+ }
+
+ offsets[0] = 0;
+ for (i = 0; i < 3; ++i) {
+ sys->planes[i].i_lines = buffer_height;
+ sys->planes[i].i_pitch = buffer_pitch;
+ sys->planes[i].i_visible_lines = vd->fmt.i_visible_height;
+ sys->planes[i].i_visible_pitch = vd->fmt.i_visible_width;
+
+ if (i > 0) {
+ offsets[i] = offsets[i - 1] + sys->planes[i - 1].i_pitch * sys->planes[i - 1].i_lines;
+ sys->planes[i].i_lines /= 2;
+ sys->planes[i].i_pitch /= 2;
+ sys->planes[i].i_visible_lines /= 2;
+ sys->planes[i].i_visible_pitch /= 2;
+ }
+
+ sys->planes[i].p_pixels = (uint8_t *)offsets[i];
+ }
+
+ vlc_mutex_init(&sys->buffer_mutex);
+ vlc_cond_init(&sys->buffer_cond);
+ vlc_mutex_init(&sys->manage_mutex);
+
+ vd->pool = vd_pool;
+ vd->display = vd_display;
+ vd->control = vd_control;
+ vd->manage = vd_manage;
+
+ vc_tv_register_callback(tvservice_cb, vd);
+
+ if (query_resolution(vd, &sys->display_width, &sys->display_height) >= 0) {
+ vout_display_SendEventDisplaySize(vd, sys->display_width, sys->display_height,
+ vd->cfg->is_fullscreen);
+ } else {
+ sys->display_width = vd->cfg->display.width;
+ sys->display_height = vd->cfg->display.height;
+ }
+
+ sys->dmx_handle = vc_dispmanx_display_open(0);
+ vd->info.subpicture_chromas = subpicture_chromas;
+
+out:
+ if (ret != VLC_SUCCESS)
+ Close(object);
+
+ return ret;
+}
+
+static void Close(vlc_object_t *object)
+{
+ vout_display_t *vd = (vout_display_t *)object;
+ vout_display_sys_t *sys = vd->sys;
+ unsigned i;
+
+ vc_tv_unregister_callback_full(tvservice_cb, vd);
+
+ if (sys->dmx_handle)
+ close_dmx(vd);
+
+ if (sys->component && sys->component->control->is_enabled)
+ mmal_port_disable(sys->component->control);
+
+ if (sys->input && sys->input->is_enabled)
+ mmal_port_disable(sys->input);
+
+ if (sys->component && sys->component->is_enabled)
+ mmal_component_disable(sys->component);
+
+ if (sys->pool)
+ mmal_pool_destroy(sys->pool);
+
+ if (sys->component)
+ mmal_component_release(sys->component);
+
+ if (sys->picture_pool)
+ picture_pool_Delete(sys->picture_pool);
+ else
+ for (i = 0; i < sys->num_buffers; ++i)
+ if (sys->pictures[i])
+ picture_Release(sys->pictures[i]);
+
+ vlc_mutex_destroy(&sys->buffer_mutex);
+ vlc_cond_destroy(&sys->buffer_cond);
+ vlc_mutex_destroy(&sys->manage_mutex);
+
+ free(sys);
+
+ bcm_host_deinit();
+}
+
+static inline uint32_t align(uint32_t x, uint32_t y) {
+ uint32_t mod = x % y;
+ if (mod == 0)
+ return x;
+ else
+ return x + y - mod;
+}
+
+static int configure_display(vout_display_t *vd, const vout_display_cfg_t *cfg,
+ const video_format_t *fmt)
+{
+ vout_display_sys_t *sys = vd->sys;
+ vout_display_place_t place;
+ MMAL_DISPLAYREGION_T display_region;
+ MMAL_STATUS_T status;
+
+ if (!cfg && !fmt)
+ return -EINVAL;
+
+ if (fmt) {
+ sys->input->format->es->video.par.num = fmt->i_sar_num;
+ sys->input->format->es->video.par.den = fmt->i_sar_den;
+
+ status = mmal_port_format_commit(sys->input);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to commit format for input port %s (status=%"PRIx32" %s)",
+ sys->input->name, status, mmal_status_to_string(status));
+ return -EINVAL;
+ }
+ } else {
+ fmt = &vd->fmt;
+ }
+
+ if (!cfg)
+ cfg = vd->cfg;
+
+ vout_display_PlacePicture(&place, fmt, cfg, false);
+
+ display_region.hdr.id = MMAL_PARAMETER_DISPLAYREGION;
+ display_region.hdr.size = sizeof(MMAL_DISPLAYREGION_T);
+ display_region.fullscreen = MMAL_FALSE;
+ display_region.src_rect.x = fmt->i_x_offset;
+ display_region.src_rect.y = fmt->i_y_offset;
+ display_region.src_rect.width = fmt->i_visible_width;
+ display_region.src_rect.height = fmt->i_visible_height;
+ display_region.dest_rect.x = place.x;
+ display_region.dest_rect.y = place.y;
+ display_region.dest_rect.width = place.width;
+ display_region.dest_rect.height = place.height;
+ display_region.layer = sys->layer;
+ display_region.set = MMAL_DISPLAY_SET_FULLSCREEN | MMAL_DISPLAY_SET_SRC_RECT |
+ MMAL_DISPLAY_SET_DEST_RECT | MMAL_DISPLAY_SET_LAYER;
+ status = mmal_port_parameter_set(sys->input, &display_region.hdr);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to set display region (status=%"PRIx32" %s)",
+ status, mmal_status_to_string(status));
+ return -EINVAL;
+ }
+
+ show_background(vd, cfg->is_fullscreen);
+ if (var_InheritBool(vd, MMAL_ADJUST_REFRESHRATE_NAME))
+ adjust_refresh_rate(vd);
+
+ if (fmt != &vd->fmt)
+ memcpy(&vd->fmt, fmt, sizeof(video_format_t));
+
+ return 0;
+}
+
+static picture_pool_t *vd_pool(vout_display_t *vd, unsigned count)
+{
+ vout_display_sys_t *sys = vd->sys;
+ picture_resource_t picture_res;
+ picture_pool_configuration_t picture_pool_cfg;
+ video_format_t fmt = vd->fmt;
+ MMAL_STATUS_T status;
+ unsigned i;
+
+ if (sys->picture_pool) {
+ if (sys->num_buffers < count)
+ msg_Warn(vd, "Picture pool with %u pictures requested, but we already have one with %u pictures",
+ count, sys->num_buffers);
+
+ goto out;
+ }
+
+ if (sys->opaque) {
+ if (count <= NUM_ACTUAL_OPAQUE_BUFFERS)
+ count = NUM_ACTUAL_OPAQUE_BUFFERS;
+ else
+ msg_Err(vd, "More picture (%u) than NUM_ACTUAL_OPAQUE_BUFFERS (%d) requested. Expect errors",
+ count, NUM_ACTUAL_OPAQUE_BUFFERS);
+ }
+
+ if (count < sys->input->buffer_num_recommended)
+ count = sys->input->buffer_num_recommended;
+
+#ifndef NDEBUG
+ msg_Dbg(vd, "Creating picture pool with %u pictures", count);
+#endif
+
+ sys->input->buffer_num = count;
+ status = mmal_port_enable(sys->input, input_port_cb);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to enable input port %s (status=%"PRIx32" %s)",
+ sys->input->name, status, mmal_status_to_string(status));
+ goto out;
+ }
+
+ status = mmal_component_enable(sys->component);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to enable component %s (status=%"PRIx32" %s)",
+ sys->component->name, status, mmal_status_to_string(status));
+ goto out;
+ }
+
+ sys->pool = mmal_pool_create_with_allocator(count, sys->input->buffer_size,
+ sys->input,
+ (mmal_pool_allocator_alloc_t)mmal_port_payload_alloc,
+ (mmal_pool_allocator_free_t)mmal_port_payload_free);
+ if (!sys->pool) {
+ msg_Err(vd, "Failed to create MMAL pool for %u buffers of size %"PRIu32,
+ count, sys->input->buffer_size);
+ goto out;
+ }
+ sys->num_buffers = count;
+
+ memset(&picture_res, 0, sizeof(picture_resource_t));
+ sys->pictures = calloc(sys->num_buffers, sizeof(picture_t *));
+ for (i = 0; i < sys->num_buffers; ++i) {
+ picture_res.p_sys = malloc(sizeof(picture_sys_t));
+ picture_res.p_sys->vd = vd;
+ picture_res.p_sys->buffer = NULL;
+
+ sys->pictures[i] = picture_NewFromResource(&fmt, &picture_res);
+ if (!sys->pictures[i]) {
+ msg_Err(vd, "Failed to create picture");
+ free(picture_res.p_sys);
+ goto out;
+ }
+ }
+
+ memset(&picture_pool_cfg, 0, sizeof(picture_pool_configuration_t));
+ picture_pool_cfg.picture_count = sys->num_buffers;
+ picture_pool_cfg.picture = sys->pictures;
+ picture_pool_cfg.lock = picture_lock;
+ picture_pool_cfg.unlock = picture_unlock;
+
+ sys->picture_pool = picture_pool_NewExtended(&picture_pool_cfg);
+ if (!sys->picture_pool) {
+ msg_Err(vd, "Failed to create picture pool");
+ goto out;
+ }
+
+out:
+ return sys->picture_pool;
+}
+
+static void vd_display(vout_display_t *vd, picture_t *picture,
+ subpicture_t *subpicture)
+{
+ vout_display_sys_t *sys = vd->sys;
+ picture_sys_t *pic_sys = picture->p_sys;
+ MMAL_BUFFER_HEADER_T *buffer = pic_sys->buffer;
+ MMAL_STATUS_T status;
+
+ if (!pic_sys->displayed || !sys->opaque) {
+ buffer->cmd = 0;
+ buffer->length = sys->input->buffer_size;
+
+ vlc_mutex_lock(&sys->buffer_mutex);
+ while (sys->buffers_in_transit >= MAX_BUFFERS_IN_TRANSIT)
+ vlc_cond_wait(&sys->buffer_cond, &sys->buffer_mutex);
+
+ status = mmal_port_send_buffer(sys->input, buffer);
+ if (status == MMAL_SUCCESS)
+ ++sys->buffers_in_transit;
+
+ vlc_mutex_unlock(&sys->buffer_mutex);
+ if (status != MMAL_SUCCESS) {
+ msg_Err(vd, "Failed to send buffer to input port. Frame dropped");
+ picture_Release(picture);
+ }
+
+ pic_sys->displayed = true;
+ } else {
+ picture_Release(picture);
+ }
+
+ display_subpicture(vd, subpicture);
+
+ if (subpicture)
+ subpicture_Delete(subpicture);
+}
+
+static int vd_control(vout_display_t *vd, int query, va_list args)
+{
+ vout_display_sys_t *sys = vd->sys;
+ vout_display_cfg_t cfg;
+ const vout_display_cfg_t *tmp_cfg;
+ video_format_t fmt;
+ const video_format_t *tmp_fmt;
+ int ret = VLC_EGENERIC;
+
+ switch (query) {
+ case VOUT_DISPLAY_HIDE_MOUSE:
+ case VOUT_DISPLAY_CHANGE_WINDOW_STATE:
+ ret = VLC_SUCCESS;
+ break;
+
+ case VOUT_DISPLAY_CHANGE_FULLSCREEN:
+ tmp_cfg = va_arg(args, const vout_display_cfg_t *);
+ vout_display_SendEventDisplaySize(vd, sys->display_width,
+ sys->display_height, tmp_cfg->is_fullscreen);
+ ret = VLC_SUCCESS;
+ break;
+
+ case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE:
+ tmp_cfg = va_arg(args, const vout_display_cfg_t *);
+ if (tmp_cfg->display.width == sys->display_width &&
+ tmp_cfg->display.height == sys->display_height) {
+ cfg = *vd->cfg;
+ cfg.display.width = sys->display_width;
+ cfg.display.height = sys->display_height;
+ if (configure_display(vd, &cfg, NULL) >= 0)
+ ret = VLC_SUCCESS;
+ }
+ break;
+
+ case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED:
+ cfg = *vd->cfg;
+ tmp_cfg = va_arg(args, const vout_display_cfg_t *);
+ cfg.is_display_filled = tmp_cfg->is_display_filled;
+ if (configure_display(vd, &cfg, NULL) >= 0)
+ ret = VLC_SUCCESS;
+ break;
+
+ case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT:
+ fmt = vd->fmt;
+ tmp_fmt = va_arg(args, const video_format_t *);
+ fmt.i_sar_num = tmp_fmt->i_sar_num;
+ fmt.i_sar_den = tmp_fmt->i_sar_den;
+ if (configure_display(vd, NULL, &fmt) >= 0)
+ ret = VLC_SUCCESS;
+ break;
+
+ case VOUT_DISPLAY_CHANGE_SOURCE_CROP:
+ fmt = vd->fmt;
+ tmp_fmt = va_arg(args, const video_format_t *);
+ fmt.i_x_offset = tmp_fmt->i_x_offset;
+ fmt.i_y_offset = tmp_fmt->i_y_offset;
+ fmt.i_visible_width = tmp_fmt->i_visible_width;
+ fmt.i_visible_height = tmp_fmt->i_visible_height;
+ if (configure_display(vd, NULL, &fmt) >= 0)
+ ret = VLC_SUCCESS;
+ break;
+
+ case VOUT_DISPLAY_CHANGE_ZOOM:
+ case VOUT_DISPLAY_RESET_PICTURES:
+ case VOUT_DISPLAY_GET_OPENGL:
+ msg_Warn(vd, "Unsupported control query %d", query);
+ break;
+
+ default:
+ msg_Warn(vd, "Unknown control query %d", query);
+ break;
+ }
+
+ return ret;
+}
+
+static void vd_manage(vout_display_t *vd)
+{
+ vout_display_sys_t *sys = vd->sys;
+ unsigned width, height;
+
+ vlc_mutex_lock(&sys->manage_mutex);
+
+ if (sys->need_configure_display) {
+ close_dmx(vd);
+ sys->dmx_handle = vc_dispmanx_display_open(0);
+
+ if (query_resolution(vd, &width, &height) >= 0) {
+ sys->display_width = width;
+ sys->display_height = height;
+ vout_display_SendEventDisplaySize(vd, width, height, vd->cfg->is_fullscreen);
+ }
+
+ sys->need_configure_display = false;
+ }
+
+ vlc_mutex_unlock(&sys->manage_mutex);
+}
+
+static int picture_lock(picture_t *picture)
+{
+ vout_display_t *vd = picture->p_sys->vd;
+ vout_display_sys_t *sys = vd->sys;
+ picture_sys_t *pic_sys = picture->p_sys;
+
+ MMAL_BUFFER_HEADER_T *buffer = mmal_queue_wait(sys->pool->queue);
+ if (!buffer)
+ return VLC_EGENERIC;
+
+ vlc_mutex_lock(&sys->buffer_mutex);
+
+ mmal_buffer_header_reset(buffer);
+ buffer->user_data = picture;
+ pic_sys->buffer = buffer;
+
+ memcpy(picture->p, sys->planes, sizeof(sys->planes));
+ picture->p[0].p_pixels = buffer->data;
+ picture->p[1].p_pixels += (ptrdiff_t)buffer->data;
+ picture->p[2].p_pixels += (ptrdiff_t)buffer->data;
+
+ pic_sys->displayed = false;
+
+ vlc_mutex_unlock(&sys->buffer_mutex);
+
+ return VLC_SUCCESS;
+}
+
+static void picture_unlock(picture_t *picture)
+{
+ picture_sys_t *pic_sys = picture->p_sys;
+ vout_display_t *vd = pic_sys->vd;
+ vout_display_sys_t *sys = vd->sys;
+ MMAL_BUFFER_HEADER_T *buffer = pic_sys->buffer;
+
+ vlc_mutex_lock(&sys->buffer_mutex);
+
+ pic_sys->buffer = NULL;
+ if (buffer) {
+ buffer->user_data = NULL;
+ mmal_buffer_header_release(buffer);
+ }
+
+ vlc_mutex_unlock(&sys->buffer_mutex);
+}
+
+static void control_port_cb(MMAL_PORT_T *port, MMAL_BUFFER_HEADER_T *buffer)
+{
+ vout_display_t *vd = (vout_display_t *)port->userdata;
+ MMAL_STATUS_T status;
+
+ if (buffer->cmd == MMAL_EVENT_ERROR) {
+ status = *(uint32_t *)buffer->data;
+ msg_Err(vd, "MMAL error %"PRIx32" \"%s\"", status, mmal_status_to_string(status));
+ }
+
+ mmal_buffer_header_release(buffer);
+}
+
+static void input_port_cb(MMAL_PORT_T *port, MMAL_BUFFER_HEADER_T *buffer)
+{
+ vout_display_t *vd = (vout_display_t *)port->userdata;
+ vout_display_sys_t *sys = vd->sys;
+ picture_t *picture = (picture_t *)buffer->user_data;
+
+ vlc_mutex_lock(&sys->buffer_mutex);
+ --sys->buffers_in_transit;
+ vlc_cond_signal(&sys->buffer_cond);
+ vlc_mutex_unlock(&sys->buffer_mutex);
+
+ if (picture)
+ picture_Release(picture);
+}
+
+static int query_resolution(vout_display_t *vd, unsigned *width, unsigned *height)
+{
+ TV_DISPLAY_STATE_T display_state;
+ int ret = 0;
+
+ if (vc_tv_get_display_state(&display_state) == 0) {
+ if (display_state.state & 0xFF) {
+ *width = display_state.display.hdmi.width;
+ *height = display_state.display.hdmi.height;
+ } else if (display_state.state & 0xFF00) {
+ *width = display_state.display.sdtv.width;
+ *height = display_state.display.sdtv.height;
+ } else {
+ msg_Warn(vd, "Invalid display state %"PRIx32, display_state.state);
+ ret = -1;
+ }
+ } else {
+ msg_Warn(vd, "Failed to query display resolution");
+ ret = -1;
+ }
+
+ return ret;
+}
+
+static void tvservice_cb(void *callback_data, uint32_t reason, uint32_t param1, uint32_t param2)
+{
+ VLC_UNUSED(reason);
+ VLC_UNUSED(param1);
+ VLC_UNUSED(param2);
+
+ vout_display_t *vd = (vout_display_t *)callback_data;
+ vout_display_sys_t *sys = vd->sys;
+
+ vlc_mutex_lock(&sys->manage_mutex);
+ sys->need_configure_display = true;
+ vlc_mutex_unlock(&sys->manage_mutex);
+}
+
+static void adjust_refresh_rate(vout_display_t *vd)
+{
+ TV_DISPLAY_STATE_T display_state;
+ TV_SUPPORTED_MODE_NEW_T supported_modes[VC_TV_MAX_MODE_IDS];
+ int num_modes;
+ double frame_rate = (double)vd->fmt.i_frame_rate / vd->fmt.i_frame_rate_base;
+ int best_id = -1;
+ double best_score, score;
+ int i;
+
+ vc_tv_get_display_state(&display_state);
+ if(display_state.display.hdmi.mode != HDMI_MODE_OFF) {
+ num_modes = vc_tv_hdmi_get_supported_modes_new(display_state.display.hdmi.group,
+ supported_modes, VC_TV_MAX_MODE_IDS, NULL, NULL);
+
+ for(i = 0; i < num_modes; ++i) {
+ if(supported_modes[i].width != display_state.display.hdmi.width ||
+ supported_modes[i].height != display_state.display.hdmi.height ||
+ supported_modes[i].scan_mode != display_state.display.hdmi.scan_mode)
+ continue;
+
+ score = fmod(supported_modes[i].frame_rate, frame_rate);
+ if((best_id < 0) || (score < best_score)) {
+ best_id = i;
+ best_score = score;
+ }
+ }
+
+ if((best_id >= 0) && (display_state.display.hdmi.frame_rate != supported_modes[best_id].frame_rate)) {
+ msg_Info(vd, "Setting HDMI refresh rate to %"PRIu32,
+ supported_modes[best_id].frame_rate);
+ vc_tv_hdmi_power_on_explicit_new(HDMI_MODE_HDMI,
+ supported_modes[best_id].group,
+ supported_modes[best_id].code);
+ }
+ }
+}
+
+static void display_subpicture(vout_display_t *vd, subpicture_t *subpicture)
+{
+ vout_display_sys_t *sys = vd->sys;
+ struct dmx_region_t **dmx_region = &sys->dmx_region;
+ struct dmx_region_t *unused_dmx_region;
+ DISPMANX_UPDATE_HANDLE_T update = 0;
+ picture_t *picture;
+ video_format_t *fmt;
+ struct dmx_region_t *dmx_region_next;
+
+ if(subpicture) {
+ subpicture_region_t *region = subpicture->p_region;
+ while(region) {
+ picture = region->p_picture;
+ fmt = ®ion->fmt;
+
+ if(!*dmx_region) {
+ if(!update)
+ update = vc_dispmanx_update_start(10);
+ *dmx_region = dmx_region_new(vd, update, region);
+ } else if(((*dmx_region)->bmp_rect.width != (int32_t)fmt->i_visible_width) ||
+ ((*dmx_region)->bmp_rect.height != (int32_t)fmt->i_visible_height) ||
+ ((*dmx_region)->pos_x != region->i_x) ||
+ ((*dmx_region)->pos_y != region->i_y) ||
+ ((*dmx_region)->alpha.opacity != (uint32_t)region->i_alpha)) {
+ dmx_region_next = (*dmx_region)->next;
+ if(!update)
+ update = vc_dispmanx_update_start(10);
+ dmx_region_delete(*dmx_region, update);
+ *dmx_region = dmx_region_new(vd, update, region);
+ (*dmx_region)->next = dmx_region_next;
+ } else if((*dmx_region)->picture != picture) {
+ if(!update)
+ update = vc_dispmanx_update_start(10);
+ dmx_region_update(*dmx_region, update, picture);
+ }
+
+ dmx_region = &(*dmx_region)->next;
+ region = region->p_next;
+ }
+ }
+
+ /* Remove remaining regions */
+ unused_dmx_region = *dmx_region;
+ while(unused_dmx_region) {
+ dmx_region_next = unused_dmx_region->next;
+ if(!update)
+ update = vc_dispmanx_update_start(10);
+ dmx_region_delete(unused_dmx_region, update);
+ unused_dmx_region = dmx_region_next;
+ }
+ *dmx_region = NULL;
+
+ if(update)
+ vc_dispmanx_update_submit_sync(update);
+}
+
+static void close_dmx(vout_display_t *vd)
+{
+ vout_display_sys_t *sys = vd->sys;
+ DISPMANX_UPDATE_HANDLE_T update = vc_dispmanx_update_start(10);
+ struct dmx_region_t *dmx_region = sys->dmx_region;
+ struct dmx_region_t *dmx_region_next;
+
+ while(dmx_region) {
+ dmx_region_next = dmx_region->next;
+ dmx_region_delete(dmx_region, update);
+ dmx_region = dmx_region_next;
+ }
+
+ vc_dispmanx_update_submit_sync(update);
+ sys->dmx_region = NULL;
+
+ show_background(vd, false);
+
+ vc_dispmanx_display_close(sys->dmx_handle);
+ sys->dmx_handle = DISPMANX_NO_HANDLE;
+}
+
+static struct dmx_region_t *dmx_region_new(vout_display_t *vd,
+ DISPMANX_UPDATE_HANDLE_T update, subpicture_region_t *region)
+{
+ vout_display_sys_t *sys = vd->sys;
+ video_format_t *fmt = ®ion->fmt;
+ struct dmx_region_t *dmx_region = malloc(sizeof(struct dmx_region_t));
+ uint32_t image_handle;
+
+ dmx_region->pos_x = region->i_x;
+ dmx_region->pos_y = region->i_y;
+
+ vc_dispmanx_rect_set(&dmx_region->bmp_rect, 0, 0, fmt->i_visible_width,
+ fmt->i_visible_height);
+ vc_dispmanx_rect_set(&dmx_region->src_rect, 0, 0, fmt->i_visible_width << 16,
+ fmt->i_visible_height << 16);
+ vc_dispmanx_rect_set(&dmx_region->dst_rect, region->i_x, region->i_y,
+ fmt->i_visible_width, fmt->i_visible_height);
+
+ dmx_region->resource = vc_dispmanx_resource_create(VC_IMAGE_RGBA32,
+ dmx_region->bmp_rect.width | (region->p_picture->p[0].i_pitch << 16),
+ dmx_region->bmp_rect.height | (dmx_region->bmp_rect.height << 16),
+ &image_handle);
+ vc_dispmanx_resource_write_data(dmx_region->resource, VC_IMAGE_RGBA32,
+ region->p_picture->p[0].i_pitch,
+ region->p_picture->p[0].p_pixels, &dmx_region->bmp_rect);
+
+ dmx_region->alpha.flags = DISPMANX_FLAGS_ALPHA_FROM_SOURCE | DISPMANX_FLAGS_ALPHA_MIX;
+ dmx_region->alpha.opacity = region->i_alpha;
+ dmx_region->alpha.mask = DISPMANX_NO_HANDLE;
+ dmx_region->element = vc_dispmanx_element_add(update, sys->dmx_handle,
+ sys->layer + 1, &dmx_region->dst_rect, dmx_region->resource,
+ &dmx_region->src_rect, DISPMANX_PROTECTION_NONE,
+ &dmx_region->alpha, NULL, VC_IMAGE_ROT0);
+
+ dmx_region->next = NULL;
+ dmx_region->picture = region->p_picture;
+
+ return dmx_region;
+}
+
+static void dmx_region_update(struct dmx_region_t *dmx_region,
+ DISPMANX_UPDATE_HANDLE_T update, picture_t *picture)
+{
+ vc_dispmanx_resource_write_data(dmx_region->resource, VC_IMAGE_RGBA32,
+ picture->p[0].i_pitch, picture->p[0].p_pixels, &dmx_region->bmp_rect);
+ vc_dispmanx_element_change_source(update, dmx_region->element, dmx_region->resource);
+ dmx_region->picture = picture;
+}
+
+static void dmx_region_delete(struct dmx_region_t *dmx_region,
+ DISPMANX_UPDATE_HANDLE_T update)
+{
+ vc_dispmanx_element_remove(update, dmx_region->element);
+ vc_dispmanx_resource_delete(dmx_region->resource);
+ free(dmx_region);
+}
+
+static void show_background(vout_display_t *vd, bool enable)
+{
+ vout_display_sys_t *sys = vd->sys;
+ uint32_t image_ptr, color = 0xFF000000;
+ VC_RECT_T dst_rect, src_rect;
+ DISPMANX_UPDATE_HANDLE_T update;
+
+ if (enable && !sys->bkg_element) {
+ sys->bkg_resource = vc_dispmanx_resource_create(VC_IMAGE_RGBA32, 1, 1,
+ &image_ptr);
+ vc_dispmanx_rect_set(&dst_rect, 0, 0, 1, 1);
+ vc_dispmanx_resource_write_data(sys->bkg_resource, VC_IMAGE_RGBA32,
+ sizeof(color), &color, &dst_rect);
+ vc_dispmanx_rect_set(&src_rect, 0, 0, 1 << 16, 1 << 16);
+ vc_dispmanx_rect_set(&dst_rect, 0, 0, 0, 0);
+ update = vc_dispmanx_update_start(0);
+ sys->bkg_element = vc_dispmanx_element_add(update, sys->dmx_handle,
+ sys->layer - 1, &dst_rect, sys->bkg_resource, &src_rect,
+ DISPMANX_PROTECTION_NONE, NULL, NULL, VC_IMAGE_ROT0);
+ vc_dispmanx_update_submit_sync(update);
+ } else if (!enable && sys->bkg_element) {
+ update = vc_dispmanx_update_start(0);
+ vc_dispmanx_element_remove(update, sys->bkg_element);
+ vc_dispmanx_resource_delete(sys->bkg_resource);
+ vc_dispmanx_update_submit_sync(update);
+ sys->bkg_element = DISPMANX_NO_HANDLE;
+ sys->bkg_resource = DISPMANX_NO_HANDLE;
+ }
+}
projects / vlc / commitdiff