#include "image_input.h"
+#include <errno.h>
#include <movit/image_format.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
+#include <libavutil/avutil.h>
+#include <libavutil/error.h>
+#include <libavutil/frame.h>
#include <libavutil/imgutils.h>
+#include <libavutil/mem.h>
#include <libavutil/pixfmt.h>
#include <libswscale/swscale.h>
}
-#include <sys/types.h>
+#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
-#include <fcntl.h>
-
+#include <cstddef>
+#include <functional>
#include <mutex>
#include <thread>
+#include <utility>
+#include <vector>
#include "ffmpeg_raii.h"
#include "flags.h"
+#include "flat_input.h"
-using namespace std;
+struct SwsContext;
-namespace {
+using namespace std;
string search_for_file(const string &filename)
{
+ if (!filename.empty() && filename[0] == '/') {
+ // Absolute path.
+ return filename;
+ }
+
+ // See if we match ^[a-z]:/, which is probably a URL of some sort
+ // (FFmpeg understands various forms of these).
+ for (size_t i = 0; i < filename.size() - 1; ++i) {
+ if (filename[i] == ':' && filename[i + 1] == '/') {
+ return filename;
+ }
+ if (!isalpha(filename[i])) {
+ break;
+ }
+ }
+
// Look for the file in all theme_dirs until we find one;
// that will be the permanent resolution of this file, whether
// it is actually valid or not.
for (const string &error : errors) {
fprintf(stderr, "%s\n", error.c_str());
}
- fprintf(stderr, "Couldn't find %s in any directory in --theme-dirs, exiting.\n",
- filename.c_str());
- exit(1);
+ return "";
}
-} // namespace
+string search_for_file_or_die(const string &filename)
+{
+ string pathname = search_for_file(filename);
+ if (pathname.empty()) {
+ fprintf(stderr, "Couldn't find %s in any directory in --theme-dirs, exiting.\n",
+ filename.c_str());
+ exit(1);
+ }
+ return pathname;
+}
ImageInput::ImageInput(const string &filename)
: movit::FlatInput({movit::COLORSPACE_sRGB, movit::GAMMA_sRGB}, movit::FORMAT_RGBA_POSTMULTIPLIED_ALPHA,
- GL_UNSIGNED_BYTE, 1280, 720), // FIXME
- pathname(search_for_file(filename)),
- current_image(load_image(pathname))
+ GL_UNSIGNED_BYTE, 1280, 720), // Resolution will be overwritten.
+ filename(filename),
+ pathname(search_for_file_or_die(filename)),
+ current_image(load_image(filename, pathname))
{
if (current_image == nullptr) { // Could happen even though search_for_file() returned.
fprintf(stderr, "Couldn't load image, exiting.\n");
exit(1);
}
+ set_width(current_image->width);
+ set_height(current_image->height);
set_pixel_data(current_image->pixels.get());
}
movit::FlatInput::set_gl_state(glsl_program_num, prefix, sampler_num);
}
-shared_ptr<const ImageInput::Image> ImageInput::load_image(const string &pathname)
+shared_ptr<const ImageInput::Image> ImageInput::load_image(const string &filename, const string &pathname)
{
unique_lock<mutex> lock(all_images_lock); // Held also during loading.
if (all_images.count(pathname)) {
all_images[pathname] = load_image_raw(pathname);
timespec first_modified = all_images[pathname]->last_modified;
update_threads[pathname] =
- thread(bind(update_thread_func, pathname, first_modified));
+ thread(bind(update_thread_func, filename, pathname, first_modified));
return all_images[pathname];
}
return nullptr;
}
- // TODO: Scale down if needed!
uint8_t *pic_data[4] = {nullptr};
unique_ptr<uint8_t *, decltype(av_freep)*> pic_data_cleanup(
&pic_data[0], av_freep);
unique_ptr<uint8_t[]> image_data(new uint8_t[len]);
av_image_copy_to_buffer(image_data.get(), len, pic_data, linesizes, AV_PIX_FMT_RGBA, frame->width, frame->height, 1);
- shared_ptr<Image> image(new Image{move(image_data), last_modified});
+ shared_ptr<Image> image(new Image{unsigned(frame->width), unsigned(frame->height), move(image_data), last_modified});
return image;
}
// Fire up a thread to update the image every second.
// We could do inotify, but this is good enough for now.
-void ImageInput::update_thread_func(const std::string &pathname, const timespec &first_modified)
+void ImageInput::update_thread_func(const std::string &filename, const std::string &pathname, const timespec &first_modified)
{
+ char thread_name[16];
+ snprintf(thread_name, sizeof(thread_name), "Update_%s", filename.c_str());
+ pthread_setname_np(pthread_self(), thread_name);
+
timespec last_modified = first_modified;
struct stat buf;
for ( ;; ) {
- sleep(1);
+ {
+ unique_lock<mutex> lock(threads_should_quit_mu);
+ threads_should_quit_modified.wait_for(lock, chrono::seconds(1), []() { return threads_should_quit; });
+ }
if (threads_should_quit) {
return;
void ImageInput::shutdown_updaters()
{
- // TODO: Kick these out of the sleep before one second?
- threads_should_quit = true;
-
+ {
+ unique_lock<mutex> lock(threads_should_quit_mu);
+ threads_should_quit = true;
+ threads_should_quit_modified.notify_all();
+ }
for (auto &it : update_threads) {
it.second.join();
}
mutex ImageInput::all_images_lock;
map<string, shared_ptr<const ImageInput::Image>> ImageInput::all_images;
map<string, thread> ImageInput::update_threads;
-volatile bool ImageInput::threads_should_quit = false;
+mutex ImageInput::threads_should_quit_mu;
+bool ImageInput::threads_should_quit = false;
+condition_variable ImageInput::threads_should_quit_modified;