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#include "video_control.h"
#include "resource_manager.h"
#include "finder.h"
#include "sdlx/sdl_ex.h"
#include "sdlx/surface.h"
#include "mrt/chunk.h"
#include "config.h"
#include <assert.h>
#define SMPEG_CHECK(f) do { const char * err; if ((err = SMPEG_error(mpeg)) != NULL) throw_ex(("%s: %s", f, err)); } while(0)
VideoControl::VideoControl(const std::string &base, const std::string &name) :
base(base), name(name), mpeg(0), lock(SDL_CreateMutex()), active(false), started(false) //, updated(false)
{
if (lock == NULL)
throw_sdl(("SDL_CreateMutex"));
std::string fname = "maps/" + name + ".jpg";
if (Finder->exists(base, fname)) {
screenshot = ResourceManager->load_surface("../" + fname);
} else
screenshot = ResourceManager->load_surface("../maps/null_video.png");
GET_CONFIG_VALUE("engine.disable-video", bool, edv, false);
if (edv)
return;
fname = "maps/" + name + ".mpg";
if (Finder->exists(base, fname)) {
{
mrt::Chunk video_data;
Finder->load(video_data, fname);
LOG_DEBUG(("video file loaded (%u bytes)", (unsigned)video_data.get_size()));
mpeg = SMPEG_new_data(video_data.get_ptr(), video_data.get_size(), &mpeg_info, 0);
if (mpeg == NULL)
throw_sdl(("SMPEG_new_data: %s", SDL_GetError()));
}
shadow.create_rgb(screenshot->get_width(), screenshot->get_height(), 24, SDL_SWSURFACE);
shadow.fill(shadow.map_rgba(0, 0, 255, 0));
shadow.set_alpha(255, 0);
frame.create_rgb(screenshot->get_width(), screenshot->get_height(), 24, SDL_SWSURFACE);
frame.fill(frame.map_rgba(255, 255, 255, 255));
frame.display_format_alpha();
LOG_DEBUG(("video file info: %dx%d, %.02g seconds", mpeg_info.width, mpeg_info.height, mpeg_info.total_time));
SMPEG_enableaudio(mpeg, 0);
SMPEG_CHECK("SMPEG_enableaudio");
SMPEG_enablevideo(mpeg, 1);
SMPEG_CHECK("SMPEG_enablevideo");
SMPEG_setdisplay(mpeg, shadow.get_sdl_surface(), lock, NULL); //update);
SMPEG_CHECK("SMPEG_setdisplay");
SMPEG_scaleXY(mpeg, screenshot->get_width(), screenshot->get_height());
SMPEG_CHECK("SMPEG_scaleXY");
checkStatus();
//SMPEG_play(mpeg);
//SMPEG_CHECK("SMPEG_play");
}
}
void VideoControl::activate(const bool a) {
active = a;
Control::activate(a);
//checkStatus();
}
void VideoControl::checkStatus() {
if (mpeg == NULL)
return;
switch(SMPEG_status(mpeg)) {
case SMPEG_PLAYING:
if (!active) {
assert(started);
LOG_DEBUG(("calling SMPEG_pause"));
SMPEG_pause(mpeg);
}
break;
case SMPEG_STOPPED:
if (active) {
if (!started) {
LOG_DEBUG(("starting stream..."));
SMPEG_play(mpeg);
SMPEG_loop(mpeg, 1);
started = true;
} else {
LOG_DEBUG(("calling SMPEG_pause: resuming"));
SMPEG_pause(mpeg);
}
}
break;
case SMPEG_ERROR:
LOG_DEBUG(("SMPEG error: %s", SMPEG_error(mpeg)));
SMPEG_delete(mpeg);
mpeg = NULL;
break;
}
}
void VideoControl::tick(const float dt) {
Control::tick(dt);
if (mpeg == NULL || !active)
return;
checkStatus();
//if (updated)
{
//LOG_DEBUG(("syncing frame with shadow"));
SDL_mutexP(lock);
try {
frame.lock();
shadow.lock();
for(int y = 0; y < frame.get_height(); ++y) {
for(int x = 0; x < frame.get_width(); ++x) {
Uint8 r, g, b, a;
shadow.get_rgba(shadow.get_pixel(x, y), r, g, b, a);
if (a == 0)
frame.put_pixel(x, y, frame.map_rgba(r, g, b, 255));
}
}
shadow.unlock();
frame.unlock();
} catch(...) {
SDL_mutexV(lock);
throw;
}
//updated = false;
SDL_mutexV(lock);
}
}
void VideoControl::render(sdlx::Surface &surface, const int x, const int y) const {
if (mpeg == NULL || !active) {
surface.blit(*screenshot, x, y);
return;
}
//int dx = (screenshot->get_width() - mpeg_info.width) / 2;
//int dy = (screenshot->get_height() - mpeg_info.height) / 2;
int dx = 0, dy = 0;
//LOG_DEBUG(("render %d %d", dx, dy));
surface.blit(frame, x + dx, y + dy);
}
void VideoControl::get_size(int &w, int &h) const {
w = screenshot->get_width();
h = screenshot->get_height();
}
VideoControl::~VideoControl() {
if (mpeg != NULL) {
SMPEG_stop(mpeg);
SMPEG_delete(mpeg);
}
SDL_DestroyMutex(lock);
}
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