void design_defaults_destroy(design_defaults_s *d)
{
// Sanity check parameters.
assert(d);
if (d->line_style) free(d->line_style);
if (d->fill_style) free(d->fill_style);
if (d->background_color) color_destroy(d->background_color);
if (d->element_color) color_destroy(d->element_color);
free(d);
}
int main(void) {
// Create IP connection
IPConnection ipcon;
ipcon_create(&ipcon);
// Create device object
Color c;
color_create(&c, UID, &ipcon);
// Connect to brickd
if(ipcon_connect(&ipcon, HOST, PORT) < 0) {
fprintf(stderr, "Could not connect\n");
return 1;
}
// Don't use device before ipcon is connected
// Get threshold callbacks with a debounce time of 10 seconds (10000ms)
color_set_debounce_period(&c, 10000);
// Register color reached callback to function cb_color_reached
color_register_callback(&c,
COLOR_CALLBACK_COLOR_REACHED,
(void *)cb_color_reached,
NULL);
// Configure threshold for color "greater than 100, 200, 300, 400"
color_set_color_callback_threshold(&c, '>', 100, 0, 200, 0, 300, 0, 400, 0);
printf("Press key to exit\n");
getchar();
color_destroy(&c);
ipcon_destroy(&ipcon); // Calls ipcon_disconnect internally
return 0;
}
void paper_set_color(paper_s *p, color_s *color)
{
// Sanity check parameters.
assert(p);
assert(color);
if (p->color) color_destroy(p->color);
p->color = color;
color_set_tag(p->color, "color");
}
void design_defaults_set_element_color(design_defaults_s *d, color_s *color)
{
// Sanity check parameters.
assert(d);
assert(color);
if (d->element_color) color_destroy(d->element_color);
d->element_color = color;
color_set_tag(d->element_color, "element-color");
}
void design_defaults_set_background_color(design_defaults_s *d, color_s *color)
{
// Sanity check parameters.
assert(d);
assert(color);
if (d->background_color) color_destroy(d->background_color);
d->background_color = color;
color_set_tag(d->background_color, "background-color");
}
void paper_destroy(paper_s *p)
{
// Sanity check parameters.
assert(p);
if (p->margins) margins_destroy(p->margins);
if (p->color) color_destroy(p->color);
free(p);
// Return RETVAL
return;
}
int export_yuv4mpeg(struct play_s *play)
{
/*
Export yuv4mpeg uses following pipeline:
file -(uncompressed_buffer)-> reads data from stream file
unpack -(uncompressed_buffer)-> decompresses lzo/quicklz packets
scale -(scale)-> does rescaling
color -(color)-> applies color correction
ycbcr -(ycbcr)-> does conversion to Y'CbCr (if necessary)
yuv4mpeg writes yuv4mpeg stream
*/
ps_bufferattr_t attr;
ps_buffer_t uncompressed_buffer, compressed_buffer,
ycbcr_buffer, color_buffer, scale_buffer;
yuv4mpeg_t yuv4mpeg;
ycbcr_t ycbcr;
scale_t scale;
unpack_t unpack;
color_t color;
int ret = 0;
if ((ret = ps_bufferattr_init(&attr)))
goto err;
/* buffers */
if ((ret = ps_bufferattr_setsize(&attr, play->compressed_size)))
goto err;
if ((ret = ps_buffer_init(&compressed_buffer, &attr)))
goto err;
if ((ret = ps_bufferattr_setsize(&attr, play->uncompressed_size)))
goto err;
if ((ret = ps_buffer_init(&uncompressed_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&color_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&ycbcr_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&scale_buffer, &attr)))
goto err;
if ((ret = ps_bufferattr_destroy(&attr)))
goto err;
/* initialize filters */
if ((ret = unpack_init(&unpack, &play->glc)))
goto err;
if ((ret = ycbcr_init(&ycbcr, &play->glc)))
goto err;
ycbcr_set_levels(ycbcr, play->tv_levels);
if ((ret = scale_init(&scale, &play->glc)))
goto err;
if (play->scale_width && play->scale_height)
scale_set_size(scale, play->scale_width, play->scale_height);
else
scale_set_scale(scale, play->scale_factor);
if ((ret = color_init(&color, &play->glc)))
goto err;
if (play->override_color_correction)
color_override(color, play->brightness, play->contrast,
play->red_gamma, play->green_gamma, play->blue_gamma);
if ((ret = yuv4mpeg_init(&yuv4mpeg, &play->glc)))
goto err;
yuv4mpeg_set_fps(yuv4mpeg, play->fps);
yuv4mpeg_set_stream_id(yuv4mpeg, play->export_video_id);
yuv4mpeg_set_interpolation(yuv4mpeg, play->interpolate);
yuv4mpeg_set_filename(yuv4mpeg, play->export_filename_format);
/* construct the pipeline */
if ((ret = unpack_process_start(unpack, &compressed_buffer, &uncompressed_buffer)))
goto err;
if ((ret = scale_process_start(scale, &uncompressed_buffer, &scale_buffer)))
goto err;
if ((ret = color_process_start(color, &scale_buffer, &color_buffer)))
goto err;
if ((ret = ycbcr_process_start(ycbcr, &color_buffer, &ycbcr_buffer)))
goto err;
if ((ret = yuv4mpeg_process_start(yuv4mpeg, &ycbcr_buffer)))
goto err;
/* feed it with data */
if ((ret = file_read(play->file, &compressed_buffer)))
goto err;
/* threads will do the dirty work... */
if ((ret = yuv4mpeg_process_wait(yuv4mpeg)))
goto err;
if ((ret = color_process_wait(color)))
goto err;
if ((ret = scale_process_wait(scale)))
goto err;
if ((ret = ycbcr_process_wait(ycbcr)))
goto err;
if ((ret = unpack_process_wait(unpack)))
goto err;
unpack_destroy(unpack);
ycbcr_destroy(ycbcr);
scale_destroy(scale);
color_destroy(color);
yuv4mpeg_destroy(yuv4mpeg);
ps_buffer_destroy(&compressed_buffer);
ps_buffer_destroy(&uncompressed_buffer);
ps_buffer_destroy(&color_buffer);
ps_buffer_destroy(&scale_buffer);
ps_buffer_destroy(&ycbcr_buffer);
return 0;
err:
fprintf(stderr, "exporting yuv4mpeg failed: %s (%d)\n", strerror(ret), ret);
return ret;
}
int export_img(struct play_s *play)
{
/*
Export img uses following pipeline:
file -(uncompressed_buffer)-> reads data from stream file
unpack -(uncompressed_buffer)-> decompresses lzo/quicklz packets
rgb -(rgb)-> does conversion to BGR
scale -(scale)-> does rescaling
color -(color)-> applies color correction
img writes separate image files for each frame
*/
ps_bufferattr_t attr;
ps_buffer_t uncompressed_buffer, compressed_buffer,
rgb_buffer, color_buffer, scale_buffer;
img_t img;
color_t color;
scale_t scale;
unpack_t unpack;
rgb_t rgb;
int ret = 0;
if ((ret = ps_bufferattr_init(&attr)))
goto err;
/* buffers */
if ((ret = ps_bufferattr_setsize(&attr, play->compressed_size)))
goto err;
if ((ret = ps_buffer_init(&compressed_buffer, &attr)))
goto err;
if ((ret = ps_bufferattr_setsize(&attr, play->uncompressed_size)))
goto err;
if ((ret = ps_buffer_init(&uncompressed_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&color_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&rgb_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&scale_buffer, &attr)))
goto err;
if ((ret = ps_bufferattr_destroy(&attr)))
goto err;
/* filters */
if ((ret = unpack_init(&unpack, &play->glc)))
goto err;
if ((ret = rgb_init(&rgb, &play->glc)))
goto err;
if ((ret = scale_init(&scale, &play->glc)))
goto err;
if (play->scale_width && play->scale_height)
scale_set_size(scale, play->scale_width, play->scale_height);
else
scale_set_scale(scale, play->scale_factor);
if ((ret = color_init(&color, &play->glc)))
goto err;
if (play->override_color_correction)
color_override(color, play->brightness, play->contrast,
play->red_gamma, play->green_gamma, play->blue_gamma);
if ((ret = img_init(&img, &play->glc)))
goto err;
img_set_filename(img, play->export_filename_format);
img_set_stream_id(img, play->export_video_id);
img_set_format(img, play->img_format);
img_set_fps(img, play->fps);
/* pipeline... */
if ((ret = unpack_process_start(unpack, &compressed_buffer, &uncompressed_buffer)))
goto err;
if ((ret = rgb_process_start(rgb, &uncompressed_buffer, &rgb_buffer)))
goto err;
if ((ret = scale_process_start(scale, &rgb_buffer, &scale_buffer)))
goto err;
if ((ret = color_process_start(color, &scale_buffer, &color_buffer)))
goto err;
if ((ret = img_process_start(img, &color_buffer)))
goto err;
/* ok, read the file */
if ((ret = file_read(play->file, &compressed_buffer)))
goto err;
/* wait 'till its done and clean up the mess... */
if ((ret = img_process_wait(img)))
goto err;
if ((ret = color_process_wait(color)))
goto err;
if ((ret = scale_process_wait(scale)))
goto err;
if ((ret = rgb_process_wait(rgb)))
goto err;
if ((ret = unpack_process_wait(unpack)))
goto err;
unpack_destroy(unpack);
rgb_destroy(rgb);
scale_destroy(scale);
color_destroy(color);
img_destroy(img);
ps_buffer_destroy(&compressed_buffer);
ps_buffer_destroy(&uncompressed_buffer);
ps_buffer_destroy(&color_buffer);
ps_buffer_destroy(&scale_buffer);
ps_buffer_destroy(&rgb_buffer);
return 0;
err:
fprintf(stderr, "exporting images failed: %s (%d)\n", strerror(ret), ret);
return ret;
}
int play_stream(struct play_s *play)
{
/*
Playback uses following pipeline:
file -(uncompressed)-> reads data from stream file
unpack -(uncompressed)-> decompresses lzo/quicklz packets
rgb -(rgb)-> does conversion to BGR
scale -(scale)-> does rescaling
color -(color)-> applies color correction
demux -(...)-> gl_play, alsa_play
Each filter, except demux and file, has glc_threads_hint(glc) worker
threads. Packet order in stream is preserved. Demux creates
separate buffer and _play handler for each video/audio stream.
*/
ps_bufferattr_t attr;
ps_buffer_t uncompressed_buffer, compressed_buffer,
rgb_buffer, color_buffer, scale_buffer;
demux_t demux;
color_t color;
scale_t scale;
unpack_t unpack;
rgb_t rgb;
int ret = 0;
if ((ret = ps_bufferattr_init(&attr)))
goto err;
/*
'compressed_buffer' buffer holds raw data from file and
has its own size.
*/
if ((ret = ps_bufferattr_setsize(&attr, play->compressed_size)))
goto err;
if ((ret = ps_buffer_init(&compressed_buffer, &attr)))
goto err;
/* rest use 'uncompressed_buffer' size */
if ((ret = ps_bufferattr_setsize(&attr, play->uncompressed_size)))
goto err;
if ((ret = ps_buffer_init(&uncompressed_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&color_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&rgb_buffer, &attr)))
goto err;
if ((ret = ps_buffer_init(&scale_buffer, &attr)))
goto err;
/* no longer necessary */
if ((ret = ps_bufferattr_destroy(&attr)))
goto err;
/* init filters */
if ((ret = unpack_init(&unpack, &play->glc)))
goto err;
if ((ret = rgb_init(&rgb, &play->glc)))
goto err;
if ((ret = scale_init(&scale, &play->glc)))
goto err;
if (play->scale_width && play->scale_height)
scale_set_size(scale, play->scale_width, play->scale_height);
else
scale_set_scale(scale, play->scale_factor);
if ((ret = color_init(&color, &play->glc)))
goto err;
if (play->override_color_correction)
color_override(color, play->brightness, play->contrast,
play->red_gamma, play->green_gamma, play->blue_gamma);
if ((ret = demux_init(&demux, &play->glc)))
goto err;
demux_set_video_buffer_size(demux, play->uncompressed_size);
demux_set_audio_buffer_size(demux, play->uncompressed_size / 10);
demux_set_alsa_playback_device(demux, play->alsa_playback_device);
/* construct a pipeline for playback */
if ((ret = unpack_process_start(unpack, &compressed_buffer, &uncompressed_buffer)))
goto err;
if ((ret = rgb_process_start(rgb, &uncompressed_buffer, &rgb_buffer)))
goto err;
if ((ret = scale_process_start(scale, &rgb_buffer, &scale_buffer)))
goto err;
if ((ret = color_process_start(color, &scale_buffer, &color_buffer)))
goto err;
if ((ret = demux_process_start(demux, &color_buffer)))
goto err;
/* the pipeline is ready - lets give it some data */
if ((ret = file_read(play->file, &compressed_buffer)))
goto err;
/* we've done our part - just wait for the threads */
if ((ret = demux_process_wait(demux)))
goto err; /* wait for demux, since when it quits, others should also */
if ((ret = color_process_wait(color)))
goto err;
if ((ret = scale_process_wait(scale)))
goto err;
if ((ret = rgb_process_wait(rgb)))
goto err;
if ((ret = unpack_process_wait(unpack)))
goto err;
/* stream processed - clean up time */
unpack_destroy(unpack);
rgb_destroy(rgb);
scale_destroy(scale);
color_destroy(color);
demux_destroy(demux);
ps_buffer_destroy(&compressed_buffer);
ps_buffer_destroy(&uncompressed_buffer);
ps_buffer_destroy(&color_buffer);
ps_buffer_destroy(&scale_buffer);
ps_buffer_destroy(&rgb_buffer);
return 0;
err:
if (!ret) {
fprintf(stderr, "playing stream failed: initializing filters failed\n");
return EAGAIN;
} else {
fprintf(stderr, "playing stream failed: %s (%d)\n", strerror(ret), ret);
return ret;
}
}