int visual_video_init (VisVideo *video)
{
visual_return_val_if_fail (video != NULL, -VISUAL_ERROR_VIDEO_NULL);
/* Do the VisObject initialization */
visual_object_clear (VISUAL_OBJECT (video));
visual_object_set_dtor (VISUAL_OBJECT (video), video_dtor);
visual_object_set_allocated (VISUAL_OBJECT (video), FALSE);
/* Reset the VisVideo data */
video->buffer = visual_buffer_new ();
video->pixel_rows = NULL;
visual_video_set_attributes (video, 0, 0, 0, VISUAL_VIDEO_DEPTH_NONE);
visual_video_set_buffer (video, NULL);
visual_video_set_palette (video, NULL);
video->parent = NULL;
video->rect = visual_rectangle_new_empty ();
/* Composite control */
video->compositetype = VISUAL_VIDEO_COMPOSITE_TYPE_SRC;
/* Colors */
video->colorkey = visual_color_new ();
return VISUAL_OK;
}
int visual_morph_run (VisMorph *morph, VisAudio *audio, VisVideo *src1, VisVideo *src2)
{
VisMorphPlugin *morphplugin;
visual_return_val_if_fail (morph != NULL, -VISUAL_ERROR_MORPH_NULL);
visual_return_val_if_fail (audio != NULL, -VISUAL_ERROR_AUDIO_NULL);
visual_return_val_if_fail (src1 != NULL, -VISUAL_ERROR_VIDEO_NULL);
visual_return_val_if_fail (src2 != NULL, -VISUAL_ERROR_VIDEO_NULL);
morphplugin = get_morph_plugin (morph);
if (morphplugin == NULL) {
visual_log (VISUAL_LOG_ERROR,
_("The given morph does not reference any plugin"));
return -VISUAL_ERROR_MORPH_PLUGIN_NULL;
}
/* If we're morphing using the timer, start the timer. */
if (!visual_timer_is_active (morph->timer))
visual_timer_start (morph->timer);
if (morphplugin->palette != NULL)
morphplugin->palette (morph->plugin, morph->rate, audio, morph->morphpal, src1, src2);
else {
if (src1->pal != NULL && src2->pal != NULL)
visual_palette_blend (morph->morphpal, src1->pal, src2->pal, morph->rate);
}
morphplugin->apply (morph->plugin, morph->rate, audio, morph->dest, src1, src2);
visual_video_set_palette (morph->dest, visual_morph_get_palette (morph));
/* On automatic morphing increase the rate. */
if (morph->mode == VISUAL_MORPH_MODE_STEPS) {
morph->rate += (1.000 / morph->steps);
morph->stepsdone++;
if (morph->rate > 1.0)
morph->rate = 1;
} else if (morph->mode == VISUAL_MORPH_MODE_TIME) {
/**
* @todo: We might want to have a bigger type here, but long longs aren't atomic
* on most architectures, so that won't do for now, maybe when we can lock (for threading)
* we can look into that
*/
double usec_elapsed = visual_timer_elapsed_usecs (morph->timer);
double usec_morph = visual_time_to_usecs (morph->morphtime);
morph->rate = usec_elapsed / usec_morph;
if (morph->rate > 1.0)
morph->rate = 1;
}
return VISUAL_OK;
}
int main (int argc, char **argv)
{
char *d1, *d2;
VisVideo *dest, *src;
VisVideoDepth depth1, depth2;
int i;
visual_init (&argc, &argv);
if (argc > 2) {
d1 = argv[1];
d2 = argv[2];
} else {
d1 = strdup("32");
d2 = strdup("16");
}
depth1 = visual_video_depth_enum_from_value(atoi(d1));
depth2 = visual_video_depth_enum_from_value(atoi(d2));
dest = visual_video_new ();
visual_video_set_depth (dest, depth1);
visual_video_set_dimension (dest, 640, 400);
visual_video_set_palette (dest, visual_palette_new (256));
visual_video_allocate_buffer (dest);
src = visual_video_new ();
visual_video_set_depth (src, depth2);
visual_video_set_dimension (src, 640, 400);
visual_video_set_palette (src, visual_palette_new (256));
visual_video_allocate_buffer (src);
for (i = 0; i < TIMES; i++)
visual_video_depth_transform (dest, src);
printf ("Depth transformed %d times from %s to %s\n", TIMES, d1, d2);
}
/**
* This is called to run a VisActor. It also pump it's events when needed, checks for new song events and also does the fitting
* and depth transformation actions when needed.
*
* Every run cycle one frame is created, so this function needs to be used in the main draw loop of the application.
*
* @param actor Pointer to a VisActor that needs to be runned.
* @param audio Pointer to a VisAudio that contains all the audio data.
*
* return VISUAL_OK on succes, -VISUAL_ERROR_ACTOR_NULL, -VISUAL_ERROR_ACTOR_VIDEO_NULL, -VISUAL_ERROR_NULL or
* -VISUAL_ERROR_ACTOR_PLUGIN_NULL on failure.
*/
int visual_actor_run (VisActor *actor, VisAudio *audio)
{
VisActorPlugin *actplugin;
VisPluginData *plugin;
VisVideo *video;
VisVideo *transform;
VisVideo *fitting;
/* We don't check for video, because we don't always need a video */
/*
* Really? take a look at visual_video_set_palette bellow
*/
visual_log_return_val_if_fail (actor != NULL, -VISUAL_ERROR_ACTOR_NULL);
visual_log_return_val_if_fail (actor->video != NULL, -VISUAL_ERROR_ACTOR_VIDEO_NULL);
visual_log_return_val_if_fail (audio != NULL, -VISUAL_ERROR_NULL);
actplugin = get_actor_plugin (actor);
plugin = visual_actor_get_plugin (actor);
if (actplugin == NULL) {
visual_log (VISUAL_LOG_CRITICAL,
_("The given actor does not reference any actor plugin"));
return -VISUAL_ERROR_ACTOR_PLUGIN_NULL;
}
/* Songinfo handling */
if(0) /*FIXME*/if (visual_songinfo_compare (&actor->songcompare, &actplugin->songinfo) == FALSE ||
actor->songcompare.elapsed != actplugin->songinfo.elapsed) {
visual_songinfo_mark (&actplugin->songinfo);
visual_event_queue_add_newsong (
visual_plugin_get_eventqueue (plugin),
&actplugin->songinfo);
visual_songinfo_free_strings (&actor->songcompare);
visual_songinfo_copy (&actor->songcompare, &actplugin->songinfo);
}
video = actor->video;
transform = actor->transform;
fitting = actor->fitting;
/*
* This needs to happen before palette, render stuff, always, period.
* Also internal vars can be initialized when params have been set in init on the param
* events in the event loop.
*/
visual_plugin_events_pump (actor->plugin);
visual_video_set_palette (video, visual_actor_get_palette (actor));
/* Set the palette to the target video */
video->pal = visual_actor_get_palette (actor);
/* Yeah some transformation magic is going on here when needed */
if (transform != NULL && (transform->depth != video->depth)) {
actplugin->render (plugin, transform, audio);
if (transform->depth == VISUAL_VIDEO_DEPTH_8BIT) {
visual_video_set_palette (transform, visual_actor_get_palette (actor));
visual_video_depth_transform (video, transform);
} else {
visual_video_set_palette (transform, actor->ditherpal);
visual_video_depth_transform (video, transform);
}
} else {
if (fitting != NULL && (fitting->width != video->width || fitting->height != video->height)) {
actplugin->render (plugin, fitting, audio);
visual_video_blit_overlay (video, fitting, 0, 0, FALSE);
} else {
actplugin->render (plugin, video, audio);
}
}
return VISUAL_OK;
}
/* Main stuff */
int main (int argc, char *argv[])
{
int width = 1000, height = 600;
int i, j;
int freeze = 0;
int depthflag = 0;
int alpha = 128;
bpp = 4;
sdl_init (width, height);
scrbuf = malloc (screen->pitch * screen->h);
memset (scrbuf, 0, screen->pitch * screen->h);
SDL_Event event;
visual_init (&argc, &argv);
if (argc > 1)
actor = visual_actor_new (argv[1]);
else
actor = visual_actor_new ("G-Force");
visual_actor_realize (actor);
video = visual_video_new ();
visual_actor_set_video (actor, video);
visual_video_set_depth (video, VISUAL_VIDEO_DEPTH_32BIT);
visual_video_set_dimension (video, 256, 256);
visual_video_allocate_buffer (video);
visual_actor_video_negotiate (actor, 0, FALSE, FALSE);
scalevid = visual_video_new ();
visual_video_set_depth (scalevid, VISUAL_VIDEO_DEPTH_32BIT);
visual_video_set_dimension (scalevid, 300, 400);
visual_video_allocate_buffer (scalevid);
sdlvid = visual_video_new ();
visual_video_set_depth (sdlvid, VISUAL_VIDEO_DEPTH_32BIT);
visual_video_set_dimension (sdlvid, screen->w, screen->h);
visual_video_set_pitch (sdlvid, screen->pitch);
visual_video_set_buffer (sdlvid, scrbuf);
input = visual_input_new ("alsa");
visual_input_realize (input);
while (1) {
visual_input_run (input);
visual_actor_run (actor, input->audio);
/* place on screen */
visual_video_blit_overlay (sdlvid, video, 0, 0, FALSE);
visual_video_set_palette (scalevid, visual_actor_get_palette (actor));
visual_video_scale (scalevid, video, VISUAL_VIDEO_SCALE_BILINEAR);
visual_video_blit_overlay (sdlvid, scalevid, 256, 0, FALSE);
sdl_draw_buf ();
usleep (5000);
while (SDL_PollEvent (&event)) {
switch (event.type) {
case SDL_KEYDOWN:
switch (event.key.keysym.sym) {
case SDLK_F11:
sdl_fullscreen_toggle ();
break;
case SDLK_q:
alpha -= 8;
if (alpha < 0)
alpha = 0;
break;
case SDLK_a:
alpha += 8;
if (alpha > 255)
alpha = 255;
break;
case SDLK_ESCAPE:
goto out;
break;
}
break;
case SDL_VIDEORESIZE:
sdl_size_request (event.resize.w, event.resize.h);
break;
case SDL_QUIT:
goto out;
break;
}
}
}
out:
SDL_Quit ();
}