void load_text_from_file(struct ft2_source *srcdata, const char *filename)
{
FILE *tmp_file = NULL;
uint32_t filesize = 0;
char *tmp_read = NULL;
uint16_t header = 0;
size_t bytes_read;
tmp_file = os_fopen(filename, "rb");
if (tmp_file == NULL) {
if (!srcdata->file_load_failed) {
blog(LOG_WARNING, "Failed to open file %s", filename);
srcdata->file_load_failed = true;
}
return;
}
fseek(tmp_file, 0, SEEK_END);
filesize = (uint32_t)ftell(tmp_file);
fseek(tmp_file, 0, SEEK_SET);
bytes_read = fread(&header, 2, 1, tmp_file);
if (bytes_read == 2 && header == 0xFEFF) {
// File is already in UTF-16 format
if (srcdata->text != NULL) {
bfree(srcdata->text);
srcdata->text = NULL;
}
srcdata->text = bzalloc(filesize);
bytes_read = fread(srcdata->text, filesize - 2, 1, tmp_file);
srcdata->m_timestamp =
get_modified_timestamp(srcdata->text_file);
bfree(tmp_read);
fclose(tmp_file);
return;
}
fseek(tmp_file, 0, SEEK_SET);
srcdata->m_timestamp = get_modified_timestamp(srcdata->text_file);
tmp_read = bzalloc(filesize + 1);
bytes_read = fread(tmp_read, filesize, 1, tmp_file);
fclose(tmp_file);
if (srcdata->text != NULL) {
bfree(srcdata->text);
srcdata->text = NULL;
}
srcdata->text = bzalloc((strlen(tmp_read) + 1)*sizeof(wchar_t));
os_utf8_to_wcs(tmp_read, strlen(tmp_read),
srcdata->text, (strlen(tmp_read) + 1));
remove_cr(srcdata->text);
bfree(tmp_read);
}
static void image_source_tick(void *data, float seconds)
{
struct image_source *context = data;
uint64_t frame_time = obs_get_video_frame_time();
if (context->last_time && context->image.is_animated_gif) {
uint64_t elapsed = frame_time - context->last_time;
bool updated = gs_image_file_tick(&context->image, elapsed);
if (updated) {
obs_enter_graphics();
gs_image_file_update_texture(&context->image);
obs_leave_graphics();
}
}
context->last_time = frame_time;
if (!obs_source_showing(context->source)) return;
context->update_time_elapsed += seconds;
if (context->update_time_elapsed >= 1.0f) {
time_t t = get_modified_timestamp(context->file);
context->update_time_elapsed = 0.0f;
if (context->file_timestamp < t) {
image_source_load(context);
}
}
}
static void image_source_tick(void *data, float seconds)
{
struct image_source *context = data;
uint64_t frame_time = obs_get_video_frame_time();
if (obs_source_active(context->source)) {
if (!context->active) {
if (context->image.is_animated_gif)
context->last_time = frame_time;
context->active = true;
}
} else {
if (context->active) {
if (context->image.is_animated_gif) {
context->image.cur_frame = 0;
context->image.cur_loop = 0;
context->image.cur_time = 0;
obs_enter_graphics();
gs_image_file_update_texture(&context->image);
obs_leave_graphics();
}
context->active = false;
}
return;
}
if (context->last_time && context->image.is_animated_gif) {
uint64_t elapsed = frame_time - context->last_time;
bool updated = gs_image_file_tick(&context->image, elapsed);
if (updated) {
obs_enter_graphics();
gs_image_file_update_texture(&context->image);
obs_leave_graphics();
}
}
context->last_time = frame_time;
context->update_time_elapsed += seconds;
if (context->update_time_elapsed >= 1.0f) {
time_t t = get_modified_timestamp(context->file);
context->update_time_elapsed = 0.0f;
if (context->file_timestamp != t) {
image_source_load(context);
}
}
}
static void ft2_video_tick(void *data, float seconds)
{
struct ft2_source *srcdata = data;
if (srcdata == NULL) return;
if (!srcdata->from_file || !srcdata->text_file) return;
if (os_gettime_ns() - srcdata->last_checked >= 1000000000) {
time_t t = get_modified_timestamp(srcdata->text_file);
srcdata->last_checked = os_gettime_ns();
if (srcdata->m_timestamp != t) {
if (srcdata->log_mode)
read_from_end(srcdata, srcdata->text_file);
else
load_text_from_file(srcdata,
srcdata->text_file);
set_up_vertex_buffer(srcdata);
}
}
UNUSED_PARAMETER(seconds);
}
static void image_source_load(struct image_source *context)
{
char *file = context->file;
obs_enter_graphics();
gs_image_file_free(&context->image);
obs_leave_graphics();
if (file && *file) {
debug("loading texture '%s'", file);
context->file_timestamp = get_modified_timestamp(file);
gs_image_file_init(&context->image, file);
context->update_time_elapsed = 0;
obs_enter_graphics();
gs_image_file_init_texture(&context->image);
obs_leave_graphics();
if (!context->image.loaded)
warn("failed to load texture '%s'", file);
}
}
void read_from_end(struct ft2_source *srcdata, const char *filename)
{
FILE *tmp_file = NULL;
uint32_t filesize = 0, cur_pos = 0;
char *tmp_read = NULL;
uint16_t value = 0, line_breaks = 0;
size_t bytes_read;
char bvalue;
bool utf16 = false;
tmp_file = fopen(filename, "rb");
if (tmp_file == NULL) {
if (!srcdata->file_load_failed) {
blog(LOG_WARNING, "Failed to open file %s", filename);
srcdata->file_load_failed = true;
}
return;
}
bytes_read = fread(&value, 2, 1, tmp_file);
if (bytes_read == 2 && value == 0xFEFF)
utf16 = true;
fseek(tmp_file, 0, SEEK_END);
filesize = (uint32_t)ftell(tmp_file);
cur_pos = filesize;
while (line_breaks <= 6 && cur_pos != 0) {
if (!utf16) cur_pos--;
else cur_pos -= 2;
fseek(tmp_file, cur_pos, SEEK_SET);
if (!utf16) {
bytes_read = fread(&bvalue, 1, 1, tmp_file);
if (bytes_read == 1 && bvalue == '\n')
line_breaks++;
}
else {
bytes_read = fread(&value, 2, 1, tmp_file);
if (bytes_read == 2 && value == L'\n')
line_breaks++;
}
}
if (cur_pos != 0)
cur_pos += (utf16) ? 2 : 1;
fseek(tmp_file, cur_pos, SEEK_SET);
if (utf16) {
if (srcdata->text != NULL) {
bfree(srcdata->text);
srcdata->text = NULL;
}
srcdata->text = bzalloc(filesize - cur_pos);
bytes_read = fread(srcdata->text, (filesize - cur_pos), 1,
tmp_file);
srcdata->m_timestamp =
get_modified_timestamp(srcdata->text_file);
bfree(tmp_read);
fclose(tmp_file);
return;
}
tmp_read = bzalloc((filesize - cur_pos) + 1);
bytes_read = fread(tmp_read, filesize - cur_pos, 1, tmp_file);
fclose(tmp_file);
if (srcdata->text != NULL) {
bfree(srcdata->text);
srcdata->text = NULL;
}
srcdata->text = bzalloc((strlen(tmp_read) + 1)*sizeof(wchar_t));
os_utf8_to_wcs(tmp_read, strlen(tmp_read),
srcdata->text, (strlen(tmp_read) + 1));
srcdata->m_timestamp = get_modified_timestamp(srcdata->text_file);
bfree(tmp_read);
}
