PP_Resource
ppb_graphics2d_create(PP_Instance instance, const struct PP_Size *size, PP_Bool is_always_opaque)
{
struct pp_instance_s *pp_i = tables_get_pp_instance(instance);
if (!pp_i) {
trace_error("%s, bad instance\n", __func__);
return 0;
}
PP_Resource graphics_2d = pp_resource_allocate(PP_RESOURCE_GRAPHICS2D, pp_i);
struct pp_graphics2d_s *g2d = pp_resource_acquire(graphics_2d, PP_RESOURCE_GRAPHICS2D);
if (!g2d) {
trace_error("%s, can't create graphics2d resource\n", __func__);
return 0;
}
g2d->is_always_opaque = is_always_opaque;
g2d->scale = config.device_scale;
g2d->width = size->width;
g2d->height = size->height;
g2d->stride = 4 * size->width;
g2d->scaled_width = g2d->width * g2d->scale + 0.5;
g2d->scaled_height = g2d->height * g2d->scale + 0.5;
g2d->scaled_stride = 4 * g2d->scaled_width;
g2d->data = calloc(g2d->stride * g2d->height, 1);
g2d->second_buffer = calloc(g2d->scaled_stride * g2d->scaled_height, 1);
if (!g2d->data || !g2d->second_buffer) {
trace_warning("%s, can't allocate memory\n", __func__);
free_and_nullify(g2d->data);
free_and_nullify(g2d->second_buffer);
pp_resource_release(graphics_2d);
ppb_core_release_resource(graphics_2d);
return 0;
}
g2d->cairo_surf = cairo_image_surface_create_for_data((unsigned char *)g2d->data,
CAIRO_FORMAT_ARGB32, g2d->width, g2d->height, g2d->stride);
g2d->task_list = NULL;
if (pp_i->is_transparent) {
// we need XRender picture (which in turn requires X Pixmap) to alpha blend
// our images with existing pixmap provided by the browser. This is only needed
// is instance is transparent, therefore depth is always 32-bit.
pthread_mutex_lock(&display.lock);
g2d->pixmap = XCreatePixmap(display.x, DefaultRootWindow(display.x), g2d->scaled_width,
g2d->scaled_height, 32);
XFlush(display.x);
g2d->xr_pict = XRenderCreatePicture(display.x, g2d->pixmap, display.pictfmt_argb32, 0, 0);
g2d->gc = XCreateGC(display.x, g2d->pixmap, 0, 0);
XFlush(display.x);
pthread_mutex_unlock(&display.lock);
}
pp_resource_release(graphics_2d);
return graphics_2d;
}
void
ppb_graphics2d_destroy(void *p)
{
if (!p)
return;
struct pp_graphics2d_s *g2d = p;
free_and_nullify(g2d, data);
free_and_nullify(g2d, second_buffer);
if (g2d->cairo_surf) {
cairo_surface_destroy(g2d->cairo_surf);
g2d->cairo_surf = NULL;
}
}
static
void
ppb_url_loader_destroy(void *p)
{
if (!p)
return;
struct pp_url_loader_s *ul = p;
if (ul->fd >= 0) {
close(ul->fd);
ul->fd = -1;
}
free_and_nullify(ul->headers);
free_and_nullify(ul->url);
free_and_nullify(ul->status_line);
free_and_nullify(ul->request_headers);
free_and_nullify(ul->custom_referrer_url);
free_and_nullify(ul->custom_content_transfer_encoding);
free_and_nullify(ul->custom_user_agent);
free_and_nullify(ul->target);
post_data_free(ul->post_data);
ul->post_data = NULL;
while (ul->read_tasks) {
GList *llink = g_list_first(ul->read_tasks);
struct url_loader_read_task_s *rt = llink->data;
ul->read_tasks = g_list_delete_link(ul->read_tasks, llink);
g_slice_free1(sizeof(*rt), rt);
}
}
static
void
ppb_url_request_info_destroy(void *p)
{
struct pp_url_request_info_s *ri = p;
if (!ri)
return;
free_and_nullify(ri->url);
free_and_nullify(ri->headers);
free_and_nullify(ri->custom_referrer_url);
free_and_nullify(ri->custom_content_transfer_encoding);
free_and_nullify(ri->custom_user_agent);
post_data_free(ri->post_data);
ri->post_data = NULL;
}
static
void
ppb_host_resolver_destroy(void *ptr)
{
struct pp_host_resolver_s *hr = ptr;
free_and_nullify(hr->addrs);
}
void
ppb_video_capture_destroy(void *p)
{
struct pp_video_capture_s *vc = p;
if (vc->fd != -1) {
v4l2_close(vc->fd);
vc->fd = -1;
}
if (vc->buffers) {
for (uint32_t k = 0; k < vc->buffer_count; k ++)
ppb_core_release_resource(vc->buffers[k]);
}
free_and_nullify(vc->buffers);
free_and_nullify(vc->buffer_is_free);
}
static
void
ppb_video_decoder_destroy_priv(void *p)
{
struct pp_video_decoder_s *vd = p;
if (vd->orig_graphics3d) {
pp_resource_unref(vd->orig_graphics3d);
vd->orig_graphics3d = 0;
}
if (vd->graphics3d) {
pp_resource_unref(vd->graphics3d);
vd->graphics3d = 0;
}
if (vd->avparser) {
av_parser_close(vd->avparser);
vd->avparser = NULL;
}
if (vd->avctx)
avcodec_free_context(&vd->avctx);
if (vd->avframe)
av_frame_free(&vd->avframe);
if (vd->va_context.context_id) {
vaDestroyContext(display.va, vd->va_context.context_id);
vd->va_context.context_id = 0;
}
if (vd->va_context.config_id) {
vaDestroyConfig(display.va, vd->va_context.config_id);
vd->va_context.config_id = 0;
}
vaDestroySurfaces(display.va, vd->surfaces, MAX_VIDEO_SURFACES);
for (uintptr_t k = 0; k < MAX_VIDEO_SURFACES; k ++) {
vd->surfaces[k] = VA_INVALID_SURFACE;
vd->surface_used[k] = 0;
}
for (uintptr_t k = 0; k < vd->buffer_count; k ++) {
vd->ppp_video_decoder_dev->DismissPictureBuffer(vd->instance->id, vd->self_id,
vd->buffers[k].id);
pthread_mutex_lock(&display.lock);
glXDestroyPixmap(display.x, vd->buffers[k].glx_pixmap);
XFreePixmap(display.x, vd->buffers[k].pixmap);
pthread_mutex_unlock(&display.lock);
}
vd->buffer_count = 0;
vd->buffers_were_requested = 0;
free_and_nullify(vd->buffers);
}
void
ppb_url_loader_close(PP_Resource loader)
{
struct pp_url_loader_s *ul = pp_resource_acquire(loader, PP_RESOURCE_URL_LOADER);
if (!ul) {
trace_error("%s, bad resource\n", __func__);
return;
}
if (ul->fd >= 0) {
close(ul->fd);
ul->fd = -1;
}
free_and_nullify(ul, headers);
free_and_nullify(ul, url);
pp_resource_release(loader);
return;
}
static
void
ppb_input_event_destroy(void *p)
{
struct pp_input_event_s *ie = p;
ppb_var_release(ie->code);
ppb_var_release(ie->text);
free_and_nullify(ie->segment_offsets);
}
PP_Resource
ppb_graphics2d_create(PP_Instance instance, const struct PP_Size *size, PP_Bool is_always_opaque)
{
struct pp_instance_s *pp_i = tables_get_pp_instance(instance);
if (!pp_i) {
trace_error("%s, bad instance\n", __func__);
return 0;
}
PP_Resource graphics_2d = pp_resource_allocate(PP_RESOURCE_GRAPHICS2D, pp_i);
struct pp_graphics2d_s *g2d = pp_resource_acquire(graphics_2d, PP_RESOURCE_GRAPHICS2D);
if (!g2d) {
trace_error("%s, can't create graphics2d resource\n", __func__);
return 0;
}
g2d->is_always_opaque = is_always_opaque;
g2d->scale = 1.0;
g2d->width = size->width;
g2d->height = size->height;
g2d->stride = 4 * size->width;
g2d->scaled_width = g2d->width;
g2d->scaled_height = g2d->height;
g2d->scaled_stride = g2d->stride;
g2d->data = calloc(g2d->stride * g2d->height, 1);
g2d->second_buffer = calloc(g2d->scaled_stride * g2d->scaled_height, 1);
if (!g2d->data || !g2d->second_buffer) {
trace_warning("%s, can't allocate memory\n", __func__);
free_and_nullify(g2d, data);
free_and_nullify(g2d, second_buffer);
pp_resource_release(graphics_2d);
ppb_core_release_resource(graphics_2d);
return 0;
}
g2d->cairo_surf = cairo_image_surface_create_for_data((unsigned char *)g2d->data,
CAIRO_FORMAT_ARGB32, g2d->width, g2d->height, g2d->stride);
g2d->task_list = NULL;
pp_resource_release(graphics_2d);
return graphics_2d;
}
void finalize_config( FGLS_config_t *cf )
{
// Free databel headers (fvi)
free_databel_fvi( &cf->Phi_fvi );
free_databel_fvi( &cf->XL_fvi );
free_databel_fvi( &cf->XR_fvi );
free_databel_fvi( &cf->Y_fvi );
// Free in-core data buffers
free_and_nullify( &cf->ests );
cf->h2 = NULL;
cf->sigma2 = NULL;
cf->res_sigma2 = NULL;
cf->beta_ests = NULL;
free_and_nullify( &cf->Phi );
free_and_nullify( &cf->XL );
free_and_nullify( &cf->ZtXL );
free_and_nullify( &cf->Z );
free_and_nullify( &cf->W );
// Close out-of-core data files
close_and_nullify( &cf->XR );
close_and_nullify( &cf->ZtXR );
close_and_nullify( &cf->Y );
close_and_nullify( &cf->ZtY );
close_and_nullify( &cf->B );
// close_and_nullify( &cf->V );
}
static
void
ppb_graphics2d_destroy(void *p)
{
if (!p)
return;
struct pp_graphics2d_s *g2d = p;
free_and_nullify(g2d->data);
free_and_nullify(g2d->second_buffer);
if (g2d->cairo_surf) {
cairo_surface_destroy(g2d->cairo_surf);
g2d->cairo_surf = NULL;
}
if (g2d->instance->is_transparent) {
pthread_mutex_lock(&display.lock);
XRenderFreePicture(display.x, g2d->xr_pict);
XFreePixmap(display.x, g2d->pixmap);
XFreeGC(display.x, g2d->gc);
pthread_mutex_unlock(&display.lock);
}
}
void
ppb_image_data_destroy(void *p)
{
if (!p)
return;
struct pp_image_data_s *id = p;
if (id->cairo_surf) {
cairo_surface_destroy(id->cairo_surf);
id->cairo_surf = NULL;
}
free_and_nullify(id, data);
}
void
ppb_url_loader_destroy(void *p)
{
if (!p)
return;
struct pp_url_loader_s *ul = p;
if (ul->fd >= 0) {
close(ul->fd);
ul->fd = -1;
}
free_and_nullify(ul, headers);
free_and_nullify(ul, url);
free_and_nullify(ul, status_line);
free_and_nullify(ul, request_headers);
free_and_nullify(ul, custom_referrer_url);
free_and_nullify(ul, custom_content_transfer_encoding);
free_and_nullify(ul, custom_user_agent);
free_and_nullify(ul, post_data);
free_and_nullify(ul, target);
}
void
ppb_url_request_info_destroy(void *p)
{
struct pp_url_request_info_s *ri = p;
if (!ri)
return;
free_and_nullify(ri, url);
free_and_nullify(ri, headers);
free_and_nullify(ri, custom_referrer_url);
free_and_nullify(ri, custom_content_transfer_encoding);
free_and_nullify(ri, custom_user_agent);
free_and_nullify(ri, post_data);
}
PP_Bool
ppb_url_request_info_append_data_to_body(PP_Resource request, const void *data, uint32_t len)
{
struct pp_url_request_info_s *ri = pp_resource_acquire(request, PP_RESOURCE_URL_REQUEST_INFO);
PP_Bool retval = PP_FALSE;
free_and_nullify(ri, post_data);
ri->post_len = 0;
ri->post_data = malloc(len);
if (ri->post_data) {
memcpy(ri->post_data, data, len);
ri->post_len = len;
retval = PP_TRUE;
} else {
retval = PP_FALSE;
}
pp_resource_release(request);
return retval;
}
PP_Bool
ppb_url_request_info_set_property(PP_Resource request, PP_URLRequestProperty property,
struct PP_Var value)
{
const char *tmp, *tmp2;
PP_Bool retval = PP_TRUE;
struct pp_url_request_info_s *ri = pp_resource_acquire(request, PP_RESOURCE_URL_REQUEST_INFO);
if (!ri) {
trace_error("%s, bad resource\n", __func__);
return PP_FALSE;
}
#define ENSURE_TYPE(vartype) if (value.type != vartype) { retval = PP_FALSE; break; }
switch (property) {
case PP_URLREQUESTPROPERTY_URL:
ENSURE_TYPE(PP_VARTYPE_STRING);
free_and_nullify(ri->url);
tmp = ppb_var_var_to_utf8(value, NULL);
tmp2 = ltrim(tmp);
ri->url = strdup(tmp2);
ri->is_immediate_javascript = (strncasecmp(tmp2, "javascript:", strlen("javascript:"))==0);
break;
case PP_URLREQUESTPROPERTY_METHOD:
ENSURE_TYPE(PP_VARTYPE_STRING);
tmp = ppb_var_var_to_utf8(value, NULL);
if (strcmp(tmp, "GET") == 0) {
ri->method = PP_METHOD_GET;
} else if (strcmp(tmp, "POST") == 0) {
ri->method = PP_METHOD_POST;
} else {
trace_warning("%s, unknown method %s\n", __func__, tmp);
ri->method = PP_METHOD_UNKNOWN;
}
break;
case PP_URLREQUESTPROPERTY_HEADERS:
ENSURE_TYPE(PP_VARTYPE_STRING);
free_and_nullify(ri->headers);
ri->headers = strdup(ppb_var_var_to_utf8(value, NULL));
break;
case PP_URLREQUESTPROPERTY_STREAMTOFILE:
ENSURE_TYPE(PP_VARTYPE_BOOL);
ri->stream_to_file = value.value.as_bool;
break;
case PP_URLREQUESTPROPERTY_FOLLOWREDIRECTS:
ENSURE_TYPE(PP_VARTYPE_BOOL);
ri->follow_redirects = value.value.as_bool;
break;
case PP_URLREQUESTPROPERTY_RECORDDOWNLOADPROGRESS:
ENSURE_TYPE(PP_VARTYPE_BOOL);
ri->record_download_progress = value.value.as_bool;
break;
case PP_URLREQUESTPROPERTY_RECORDUPLOADPROGRESS:
ENSURE_TYPE(PP_VARTYPE_BOOL);
ri->record_upload_progress = value.value.as_bool;
break;
case PP_URLREQUESTPROPERTY_CUSTOMREFERRERURL:
ENSURE_TYPE(PP_VARTYPE_STRING);
free_and_nullify(ri->custom_referrer_url);
ri->custom_referrer_url = strdup(ppb_var_var_to_utf8(value, NULL));
break;
case PP_URLREQUESTPROPERTY_ALLOWCROSSORIGINREQUESTS:
ENSURE_TYPE(PP_VARTYPE_BOOL);
ri->allow_cross_origin_requests = value.value.as_bool;
break;
case PP_URLREQUESTPROPERTY_ALLOWCREDENTIALS:
ENSURE_TYPE(PP_VARTYPE_BOOL);
ri->allow_credentials = value.value.as_bool;
break;
case PP_URLREQUESTPROPERTY_CUSTOMCONTENTTRANSFERENCODING:
ENSURE_TYPE(PP_VARTYPE_STRING);
free_and_nullify(ri->custom_content_transfer_encoding);
ri->custom_content_transfer_encoding = strdup(ppb_var_var_to_utf8(value, NULL));
break;
case PP_URLREQUESTPROPERTY_PREFETCHBUFFERUPPERTHRESHOLD:
ENSURE_TYPE(PP_VARTYPE_INT32);
ri->prefetch_buffer_upper_threshold = value.value.as_int;
break;
case PP_URLREQUESTPROPERTY_PREFETCHBUFFERLOWERTHRESHOLD:
ENSURE_TYPE(PP_VARTYPE_INT32);
ri->prefetch_buffer_lower_threshold = value.value.as_int;
break;
case PP_URLREQUESTPROPERTY_CUSTOMUSERAGENT:
ENSURE_TYPE(PP_VARTYPE_STRING);
free_and_nullify(ri->custom_user_agent);
ri->custom_user_agent = strdup(ppb_var_var_to_utf8(value, NULL));
break;
default:
trace_error("%s, unknown url request property %d\n", __func__, property);
retval = PP_FALSE;
break;
}
pp_resource_release(request);
return retval;
}
int32_t
ppb_url_loader_follow_redirect(PP_Resource loader, struct PP_CompletionCallback callback)
{
struct pp_url_loader_s *ul = pp_resource_acquire(loader, PP_RESOURCE_URL_LOADER);
if (!ul) {
trace_error("%s, bad resource\n", __func__);
return PP_ERROR_BADRESOURCE;
}
char *new_url = nullsafe_strdup(ul->redirect_url);
free_and_nullify(ul, url);
free_and_nullify(ul, redirect_url);
free_and_nullify(ul, status_line);
free_and_nullify(ul, headers);
free_and_nullify(ul, request_headers);
if (ul->fd >= 0) {
close(ul->fd);
ul->fd = -1;
}
// abort further handling of the NPStream
if (ul->np_stream) {
ul->np_stream->pdata = NULL;
ul->np_stream = NULL;
}
ul->fd = open_temporary_file();
ul->url = new_url;
ul->read_pos = 0;
ul->method = PP_METHOD_GET;
ul->ccb = callback;
struct url_loader_open_param_s *p = g_slice_alloc(sizeof(*p));
p->url = ul->url;
p->loader = loader;
p->instance_id = ul->instance->id;
p->method = ul->method;
p->request_headers = ul->request_headers;
p->custom_referrer_url = ul->custom_referrer_url;
p->custom_content_transfer_encoding = ul->custom_content_transfer_encoding;
p->custom_user_agent = ul->custom_user_agent;
p->target = NULL;
p->post_len = 0;
p->post_data = NULL;
p->m_loop = ppb_message_loop_get_current();
p->depth = ppb_message_loop_get_depth(p->m_loop) + 1;
ppb_message_loop_post_work(p->m_loop, PP_MakeCCB(_url_loader_open_comt, p), 0);
ppb_message_loop_run_nested(p->m_loop);
pp_resource_release(loader);
int retval = p->retval;
g_slice_free1(sizeof(*p), p);
if (retval != NPERR_NO_ERROR)
return PP_ERROR_FAILED;
if (callback.func == NULL) {
int done = 0;
while (!done) {
ul = pp_resource_acquire(loader, PP_RESOURCE_URL_LOADER);
if (ul) {
done = ul->finished_loading;
pp_resource_release(loader);
} else {
break;
}
printf("waitin'\n");
usleep(10000);
}
return PP_OK;
}
return PP_OK_COMPLETIONPENDING;
}
int32_t
ppb_video_capture_open(PP_Resource video_capture, PP_Resource device_ref,
const struct PP_VideoCaptureDeviceInfo_Dev *requested_info,
uint32_t buffer_count, struct PP_CompletionCallback callback)
{
int32_t result;
struct pp_video_capture_s *vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc) {
trace_error("%s, bad resource\n", __func__);
return PP_ERROR_BADRESOURCE;
}
const char *capture_device = default_capture_device;
struct PP_Var longname = ppb_device_ref_get_longname(device_ref);
if (longname.type == PP_VARTYPE_STRING)
capture_device = ppb_var_var_to_utf8(longname, NULL);
vc->fd = v4l2_open(capture_device, O_RDWR);
ppb_var_release(longname);
if (vc->fd < 0) {
result = PP_ERROR_NOACCESS;
goto point_1;
}
struct v4l2_capability caps;
if (v4l2_ioctl(vc->fd, VIDIOC_QUERYCAP, &caps) != 0) {
result = PP_ERROR_FAILED;
goto point_2;
}
#ifdef V4L2_CAP_DEVICE_CAPS
const uint32_t device_caps = (caps.capabilities & V4L2_CAP_DEVICE_CAPS) ? caps.device_caps
: caps.capabilities;
#else
const uint32_t device_caps = caps.capabilities;
#endif // V4L2_CAP_DEVICE_CAPS
if (!(device_caps & V4L2_CAP_VIDEO_CAPTURE)) {
trace_error("%s, device can't capture\n", __func__);
result = PP_ERROR_FAILED;
goto point_2;
}
if (!(device_caps & V4L2_CAP_READWRITE)) {
trace_error("%s, device doesn't support read/write interface\n", __func__);
result = PP_ERROR_FAILED;
goto point_2;
}
if (requested_info) {
vc->width = requested_info->width;
vc->height = requested_info->height;
vc->fps = requested_info->frames_per_second;
} else {
vc->width = 640;
vc->height = 480;
vc->fps = 15;
}
struct v4l2_format fmt = {
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
.fmt.pix.width = vc->width,
.fmt.pix.height = vc->height,
.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420, // PPAPI hardcodes format to YUV420
.fmt.pix.field = V4L2_FIELD_INTERLACED,
};
if (v4l2_ioctl(vc->fd, VIDIOC_S_FMT, &fmt) != 0) {
trace_error("%s, failed to set resolution\n", __func__);
result = PP_ERROR_FAILED;
goto point_2;
}
vc->width = fmt.fmt.pix.width;
vc->height = fmt.fmt.pix.height;
vc->buffer_size = fmt.fmt.pix.sizeimage; // buffer size in bytes
vc->buffer_count = MAX(buffer_count, 5); // limit lowest number of buffers, just in case
vc->buffers = calloc(sizeof(*vc->buffers), vc->buffer_count);
if (!vc->buffers) {
trace_error("%s, memory allocation failure (1)\n", __func__);
result = PP_ERROR_FAILED;
goto point_2;
}
vc->buffer_is_free = malloc(sizeof(*vc->buffer_is_free) * vc->buffer_count);
if (!vc->buffer_is_free) {
trace_error("%s, memory allocation failure (2)\n", __func__);
result = PP_ERROR_FAILED;
goto point_3;
}
for (unsigned int k = 0; k < vc->buffer_count; k ++) {
vc->buffer_is_free[k] = 1;
vc->buffers[k] = ppb_buffer_create(vc->instance->id, vc->buffer_size);
if (vc->buffers[k] == 0)
goto point_4;
}
struct PP_VideoCaptureDeviceInfo_Dev info = {
.width = vc->width,
.height = vc->height,
.frames_per_second = vc->fps,
};
vc->ppp_video_capture_dev->OnDeviceInfo(vc->instance->id, video_capture, &info,
vc->buffer_count, vc->buffers);
result = PP_OK;
goto point_1;
point_4:
for (unsigned int k = 0; k < vc->buffer_count; k ++)
ppb_core_release_resource(vc->buffers[k]);
free_and_nullify(vc->buffer_is_free);
point_3:
free_and_nullify(vc->buffers);
point_2:
v4l2_close(vc->fd);
vc->fd = -1;
point_1:
pp_resource_release(video_capture);
ppb_core_call_on_main_thread2(0, callback, result, __func__);
return PP_OK_COMPLETIONPENDING;
}
struct on_buffer_ready_param_s {
PP_Instance instance;
PP_Resource video_capture;
uint32_t buf_idx;
const struct PPP_VideoCapture_Dev_0_1 *ppp_video_capture_dev;
};
static
void
on_buffer_ready_comt(void *user_data, int32_t result)
{
struct on_buffer_ready_param_s *p = user_data;
struct pp_instance_s *pp_i = tables_get_pp_instance(p->instance);
if (!pp_i)
return;
p->ppp_video_capture_dev->OnBufferReady(p->instance, p->video_capture, p->buf_idx);
g_slice_free1(sizeof(*p), p);
}
static
void *
video_capture_thread(void *param)
{
struct pp_video_capture_s *vc = param;
PP_Resource video_capture = vc->self_id;
PP_Instance instance = vc->instance->id;
const int fd = vc->fd;
const size_t buffer_size = vc->buffer_size;
vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc)
goto gone;
while (!vc->terminate_thread) {
// find free buffer
uint32_t buf_idx = (uint32_t)-1;
for (uint32_t k = 0; k < vc->buffer_count; k ++) {
if (vc->buffer_is_free[k]) {
buf_idx = k;
vc->buffer_is_free[k] = 0;
break;
}
}
if (buf_idx == (uint32_t)-1) {
// all buffers are busy, wait for some to free, with resource unlocked
pp_resource_release(video_capture);
usleep(10);
vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc)
goto gone;
continue;
}
PP_Resource buffer = vc->buffers[buf_idx];
pp_resource_release(video_capture);
// wait on v4l2_read() with resource unlocked
void *ptr = ppb_buffer_map(buffer);
RETRY_ON_EINTR(v4l2_read(fd, ptr, buffer_size));
ppb_buffer_unmap(buffer);
vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc)
goto gone;
struct on_buffer_ready_param_s *p = g_slice_alloc(sizeof(*p));
p->instance = instance;
p->video_capture = video_capture;
p->buf_idx = buf_idx;
p->ppp_video_capture_dev = vc->ppp_video_capture_dev;
ppb_core_call_on_main_thread2(0, PP_MakeCCB(on_buffer_ready_comt, p), PP_OK, __func__);
}
pp_resource_release(video_capture);
return NULL;
gone:
trace_error("%s, resource gone\n", __func__);
return NULL;
}
int32_t
ppb_video_capture_start_capture(PP_Resource video_capture)
{
struct pp_video_capture_s *vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc) {
trace_error("%s, bad resource\n", __func__);
return PP_ERROR_BADRESOURCE;
}
if (vc->thread_started)
goto done;
if (vc->fd < 0) {
trace_error("%s, device is closed\n", __func__);
pp_resource_release(video_capture);
return PP_ERROR_FAILED;
}
vc->ppp_video_capture_dev->OnStatus(vc->instance->id, video_capture,
PP_VIDEO_CAPTURE_STATUS_STARTING);
pp_resource_ref(video_capture); // prevents freeing while thread is still running
pthread_create(&vc->thread, NULL, video_capture_thread, vc);
vc->thread_started = 1;
vc->ppp_video_capture_dev->OnStatus(vc->instance->id, video_capture,
PP_VIDEO_CAPTURE_STATUS_STARTED);
done:
pp_resource_release(video_capture);
return PP_OK;
}
int32_t
ppb_video_capture_reuse_buffer(PP_Resource video_capture, uint32_t buffer)
{
struct pp_video_capture_s *vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc) {
trace_error("%s, bad resource\n", __func__);
return PP_ERROR_BADRESOURCE;
}
if (buffer < vc->buffer_count)
vc->buffer_is_free[buffer] = 1;
pp_resource_release(video_capture);
return PP_OK;
}
int32_t
ppb_video_capture_stop_capture(PP_Resource video_capture)
{
struct pp_video_capture_s *vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc) {
trace_error("%s, bad resource\n", __func__);
return PP_ERROR_BADRESOURCE;
}
if (!vc->thread_started)
goto done;
vc->ppp_video_capture_dev->OnStatus(vc->instance->id, video_capture,
PP_VIDEO_CAPTURE_STATUS_STOPPING);
vc->terminate_thread = 1;
pthread_t thread = vc->thread;
pp_resource_release(video_capture);
pthread_join(thread, NULL);
vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc) {
trace_error("%s, resource gone\n", __func__);
return PP_ERROR_BADRESOURCE;
}
vc->thread_started = 0;
vc->terminate_thread = 0;
vc->ppp_video_capture_dev->OnStatus(vc->instance->id, video_capture,
PP_VIDEO_CAPTURE_STATUS_STOPPED);
pp_resource_unref(video_capture); // remove reference made in start_capture()
done:
pp_resource_release(video_capture);
return PP_OK;
}
void
ppb_video_capture_close(PP_Resource video_capture)
{
ppb_video_capture_stop_capture(video_capture);
struct pp_video_capture_s *vc = pp_resource_acquire(video_capture, PP_RESOURCE_VIDEO_CAPTURE);
if (!vc) {
trace_error("%s, bad resource\n", __func__);
return;
}
ppb_video_capture_destroy(vc);
pp_resource_release(video_capture);
return;
}
// trace wrappers
TRACE_WRAPPER
PP_Resource
trace_ppb_video_capture_create(PP_Instance instance)
{
trace_info("[PPB] {full} %s instance=%d\n", __func__+6, instance);
return ppb_video_capture_create(instance);
}