/**
* Object-to-Config function.
* Creates a config-node (and subnodes) from a LedSetup model
* @param c the current preferences context
* @param n a freshly created prefs node that this function should fill with properties of obj
* @param obj object of this class where preferences should be generated from
* @result NFT_SUCCESS if everything went fine, NFT_FAILURE otherwise
* @note you shouldn't call this function directly
* It's used by nft_prefs_obj_to_node() etc.
*/
static NftResult _prefs_from_setup(NftPrefs * p, NftPrefsNode * n, void *obj,
void *userptr)
{
if(!p || !n || !obj)
NFT_LOG_NULL(NFT_FAILURE);
/* "Setup" object */
LedSetup *s = obj;
/* process all "hardware" objects */
LedHardware *h;
for(h = led_setup_get_hardware(s); h;
h = led_hardware_list_get_next(h))
{
/* generate prefs for each hardware node */
NftPrefsNode *node;
if(!
(node =
nft_prefs_obj_to_node(p, LED_HARDWARE_NAME, h, NULL)))
return NFT_FAILURE;
/* add hardware to this setup */
if(!(nft_prefs_node_add_child(n, node)))
return NFT_FAILURE;
}
return NFT_SUCCESS;
}
/** unregister setup */
static void _unregister()
{
if(!_setup)
NFT_LOG_NULL();
/* free all hardware nodes */
LedHardware *h;
for(h = led_setup_get_hardware(_setup);
h; h = led_hardware_list_get_next(h))
{
/* unregister all tiles of hardware */
LedTile *t;
for(t = led_hardware_get_tile(h);
t; t = led_tile_list_get_next(t))
{
tile_unregister_from_gui(led_tile_get_privdata(t));
}
/* unregister chain of hardware */
chain_unregister_from_gui(led_chain_get_privdata
(led_hardware_get_chain(h)));
/* unregister hardware */
hardware_unregister_from_gui(led_hardware_get_privdata(h));
}
led_setup_destroy(_setup);
_setup = NULL;
free(_current_filename);
_current_filename = NULL;
}
/** register new setup */
NftResult setup_register_to_gui(LedSetup * s)
{
if(!s)
NFT_LOG_NULL(NFT_FAILURE);
/* previous setup? */
if(_setup)
_unregister();
/* initialize our element descriptor and set as privdata in niftyled
* model */
LedHardware *h;
for(h = led_setup_get_hardware(s);
h; h = led_hardware_list_get_next(h))
{
/* create new hardware element */
if(!hardware_register_to_gui(h))
{
g_warning("failed to allocate new hardware element");
return false;
}
/* create chain of this hardware */
if(!chain_register_to_gui(led_hardware_get_chain(h)))
{
g_warning("failed to allocate new chain element");
return false;
}
/* walk all tiles belonging to this hardware & initialize */
LedTile *t;
for(t = led_hardware_get_tile(h);
t; t = led_tile_list_get_next(t))
{
if(!tile_register_to_gui(t))
{
g_warning
("failed to allocate new tile element");
return false;
}
}
}
/* save new setup */
_setup = s;
/* allocate renderer */
if(!(_renderer = renderer_setup_new()))
{
g_error("Failed to allocate renderer for Setup");
_unregister();
return NFT_FAILURE;
}
/* initially draw setup */
renderer_setup_damage();
return NFT_SUCCESS;
}
int main(int argc, char *argv[])
{
/* current configuration */
LedPrefs *p = NULL;
/** current setup */
LedSetup *s = NULL;
/** list of LED hardware adapters */
LedHardware *hw = NULL;
/* input pixel-frame buffer */
LedFrame *frame = NULL;
/** width of map */
LedFrameCord width;
/** height of map */
LedFrameCord height;
/* check libniftyled binary version compatibility */
NFT_LED_CHECK_VERSION
/* set default loglevel to INFO */
nft_log_level_set(L_INFO);
/* initialize exit handlers */
#if WIN32
int signals[] = { SIGINT, SIGABRT };
#else
int signals[] = { SIGHUP, SIGINT, SIGQUIT, SIGABRT };
#endif
unsigned int i;
for(i=0; i<sizeof(signals)/sizeof(int); i++)
{
if(signal(signals[i], _exit_signal_handler) == SIG_ERR)
{
NFT_LOG_PERROR("signal()");
return -1;
}
}
/* default result of main() function */
int res = -1;
/* default fps */
_c.fps = 25;
/* default endianess */
_c.is_big_endian = FALSE;
#if HAVE_IMAGEMAGICK == 1
/* default handle-input-as-raw */
_c.raw = FALSE;
#endif
/* default looping */
_c.do_loop = FALSE;
/* set "running" flag */
_c.running = TRUE;
/* default pixel-format */
strncpy(_c.pixelformat, "RGB u8", sizeof(_c.pixelformat));
/* default prefs-filename */
if(!led_prefs_default_filename(_c.prefsfile, sizeof(_c.prefsfile), ".ledcat.xml"))
return -1;
/* parse commandline arguments */
if(!_parse_args(argc, argv))
return -1;
/* print welcome msg */
NFT_LOG(L_INFO, "%s %s (c) D.Hiepler 2006-2012", PACKAGE_NAME, ledcat_version_long());
NFT_LOG(L_VERBOSE, "Loglevel: %s", nft_log_level_to_string(nft_log_level_get()));
#if HAVE_IMAGEMAGICK == 1
/* initialize imagemagick */
if(!_c.raw)
{
if(!im_init(&_c))
{
NFT_LOG(L_ERROR, "Failed to initialize ImageMagick");
return -1;
}
}
#endif
/* initialize preferences context */
if(!(p = led_prefs_init()))
return -1;
/* parse prefs-file */
LedPrefsNode *pnode;
if(!(pnode = led_prefs_node_from_file(_c.prefsfile)))
{
NFT_LOG(L_ERROR, "Failed to open configfile \"%s\"",
_c.prefsfile);
goto m_deinit;
}
/* create setup from prefs-node */
if(!(s = led_prefs_setup_from_node(p, pnode)))
{
NFT_LOG(L_ERROR, "No valid setup found in preferences file.");
led_prefs_node_free(pnode);
goto m_deinit;
}
/* free preferences node */
led_prefs_node_free(pnode);
/* determine width of input-frames */
if(!_c.width)
/* width of mapped chain */
width = led_setup_get_width(s);
else
/* use value from cmdline arguments */
width = _c.width;
/* determine height of input-frames */
if(!_c.height)
/* height of mapped chain */
height = led_setup_get_height(s);
else
height = _c.height;
/* validate dimensions */
if(width <= 0 || height <= 0)
{
NFT_LOG(L_ERROR, "Dimensions %dx%d not possible in this universe. Exiting.", width, height);
goto m_deinit;
}
/* allocate frame (where our pixelbuffer resides) */
NFT_LOG(L_INFO, "Allocating frame: %dx%d (%s)",
width, height, _c.pixelformat);
LedPixelFormat *format = led_pixel_format_from_string(_c.pixelformat);
if(!(frame = led_frame_new(width, height, format)))
goto m_deinit;
/* get first toplevel hardware */
if(!(hw = led_setup_get_hardware(s)))
goto m_deinit;
/* initialize hardware */
/*if(!(led_hardware_init(hw, ledcount, (LedGreyscaleFormat) format)))
{
NFT_LOG(L_ERROR, "failed to initialize hardware.");
goto m_deinit;
}*/
/* initialize pixel->led mapping */
if(!led_hardware_list_refresh_mapping(hw))
goto m_deinit;
/* precalc memory offsets for actual mapping */
LedHardware *ch;
for(ch = hw; ch; ch = led_hardware_list_get_next(ch))
{
if(!led_chain_map_from_frame(led_hardware_get_chain(ch), frame))
goto m_deinit;
}
/* set correct gain to hardware */
if(!led_hardware_list_refresh_gain(hw))
goto m_deinit;
#if HAVE_IMAGEMAGICK == 1
/* determine format that ImageMagick should provide */
if(!_c.raw)
{
if(!(im_format(&_c, format)))
{
NFT_LOG(L_ERROR, "Failed to determine valid ImageMagick format");
goto m_deinit;
}
}
#endif
/* do we have at least one filename? */
if(!_c.files[0])
{
NFT_LOG(L_ERROR, "No input file(s) given");
goto m_deinit;
}
/* initially sample time for frame-timing */
if(!led_fps_sample())
goto m_deinit;
#if ! WIN32
/* initialize alarm-signal handler for periodical fps output */
{
struct sigaction sa;
struct itimerval timer;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = &_alarm_signal_handler;
sigaction(SIGALRM, &sa, NULL);
timer.it_value.tv_sec = 1;
timer.it_value.tv_usec = 0;
timer.it_interval.tv_sec = 1;
timer.it_interval.tv_usec = 0;
setitimer(ITIMER_REAL, &timer, NULL);
}
#endif
/* get data-buffer of frame to write our pixels to */
char *buf;
if(!(buf = led_frame_get_buffer(frame)))
{
NFT_LOG(L_ERROR, "Frame has NULL buffer");
goto m_deinit;
}
/* walk all files (supplied as commandline arguments) and output them */
int filecount;
for(filecount = 0; _c.files[filecount]; filecount++)
{
NFT_LOG(L_VERBOSE, "Getting pixels from \"%s\"", _c.files[filecount]);
/* open file */
if(_c.files[filecount][0] == '-' && strlen(_c.files[filecount]) == 1)
{
_c.fd = STDIN_FILENO;
}
else
{
if((_c.fd = open(_c.files[filecount], O_RDONLY)) < 0)
{
NFT_LOG(L_ERROR, "Failed to open \"%s\": %s",
_c.files[filecount], strerror(errno));
continue;
}
}
#if HAVE_IMAGEMAGICK == 1
/** initialize stream for ImageMagick */
if(!_c.raw)
{
if(!(im_open_stream(&_c)))
continue;
}
#endif
/* output file frame-by-frame */
while(_c.running)
{
#if HAVE_IMAGEMAGICK == 1
/* use imagemagick to load file if we're not in "raw-mode" */
if(!_c.raw)
{
/* load frame to buffer using ImageMagick */
if(!im_read_frame(&_c, width, height, buf))
break;
}
else
{
#endif
/* read raw frame */
if(raw_read_frame(&_c.running, buf, _c.fd,
led_pixel_format_get_buffer_size(
led_frame_get_format(frame),
led_frame_get_width(frame)*led_frame_get_height(frame))) == 0)
continue;
#if HAVE_IMAGEMAGICK == 1
}
#endif
/* set endianess (flag will be changed when conversion occurs) */
led_frame_set_big_endian(frame, _c.is_big_endian);
/* print frame for debugging */
//nft_frame_buffer_print(frame);
/* fill chain of every hardware from frame */
LedHardware *h;
for(h = hw; h; h = led_hardware_list_get_next(h))
{
if(!led_chain_fill_from_frame(led_hardware_get_chain(h), frame))
{
NFT_LOG(L_ERROR, "Error while mapping frame");
break;
}
}
/* send frame to hardware(s) */
NFT_LOG(L_DEBUG, "Sending frame");
led_hardware_list_send(hw);
/* delay in respect to fps */
if(!led_fps_delay(_c.fps))
break;
/* latch hardware */
NFT_LOG(L_DEBUG, "Showing frame");
led_hardware_list_show(hw);
/* save time when frame is displayed */
if(!led_fps_sample())
break;
/* clear frame */
//nft_frame_clear_buffer(frame);
}
#if HAVE_IMAGEMAGICK == 1
if(!_c.raw)
im_close_stream(&_c);
#else
close(_c.fd);
#endif
/* loop endlessly? */
if((_c.running) && (!_c.files[filecount+1]) && _c.do_loop)
{
/* start over by resetting the for-loop */
filecount = -1;
}
}
/* all ok */
res = 0;
m_deinit:
/* free setup */
led_setup_destroy(s);
/* free frame */
led_frame_destroy(frame);
/* destroy config */
led_prefs_deinit(p);
#if HAVE_IMAGEMAGICK == 1
/* deinitialize ImageMagick */
im_deinit(&_c);
#endif
return res;
}
/** renderer for setups */
static NftResult _render_setup(cairo_surface_t ** surface, gpointer element)
{
if(!surface || !element)
NFT_LOG_NULL(NFT_FAILURE);
/* setup to render */
LedSetup *s = (LedSetup *) element;
/* get dimensions of setup */
LedFrameCord w, h;
led_setup_get_dim(s, &w, &h);
/* calculate rendered dimensions of this tile */
double width = (double) w * ui_renderer_scale_factor();
double height = (double) h * ui_renderer_scale_factor();
/* if dimensions changed, we need to allocate a new surface */
if(!renderer_resize(setup_get_renderer(), width, height))
{
g_error("Failed to resize renderer to %dx%d", w, h);
return NFT_FAILURE;
}
/* create context for drawing */
cairo_t *cr = cairo_create(*surface);
/* clear surface */
#ifdef DEBUG
cairo_set_source_rgba(cr, 0.1, 0.1, 0.1, 1);
#else
cairo_set_source_rgba(cr, 0, 0, 0, 1);
#endif
cairo_rectangle(cr,
0, 0,
(double) cairo_image_surface_get_width(*surface),
(double) cairo_image_surface_get_height(*surface));
cairo_fill(cr);
/* walk through all hardware LED adapters */
LedHardware *hw;
for(hw = led_setup_get_hardware(s);
hw; hw = led_hardware_list_get_next(hw))
{
/* calculate offset of complete setup */
LedTile *t;
double xOff = 0, yOff = 0;
for(t = led_hardware_get_tile(hw);
t; t = led_tile_list_get_next(t))
{
double xOffT, yOffT;
tile_calc_render_offset(led_tile_get_privdata(t),
(double) w, (double) h,
&xOffT, &yOffT);
xOff = MIN(xOff, xOffT);
yOff = MIN(yOff, yOffT);
}
renderer_set_offset(setup_get_renderer(),
xOff * ui_renderer_scale_factor(),
yOff * ui_renderer_scale_factor());
/* Walk all tiles of this hardware & draw their surface */
for(t = led_hardware_get_tile(hw);
t; t = led_tile_list_get_next(t))
{
/** @todo check for visibility? */
/* get surface from tile */
NiftyconfTile *tile =
(NiftyconfTile *) led_tile_get_privdata(t);
/* get surface */
cairo_surface_t *tsurface = renderer_get_surface
(tile_get_renderer(tile));
/* compensate child tiles' offset */
double xOffT, yOffT;
renderer_get_offset(tile_get_renderer(tile), &xOffT,
&yOffT);
cairo_translate(cr, xOffT, yOffT);
/* compensate setup offset */
cairo_translate(cr,
-xOff * ui_renderer_scale_factor(),
-yOff * ui_renderer_scale_factor());
/* move to x/y */
LedFrameCord x, y;
led_tile_get_pos(t, &x, &y);
cairo_translate(cr,
((double) x) *
ui_renderer_scale_factor(),
((double) y) *
ui_renderer_scale_factor());
/* rotate around pivot */
double pX, pY;
led_tile_get_pivot(t, &pX, &pY);
cairo_translate(cr,
pX * ui_renderer_scale_factor(),
pY * ui_renderer_scale_factor());
cairo_rotate(cr, led_tile_get_rotation(t));
cairo_translate(cr,
-pX * ui_renderer_scale_factor(),
-pY * ui_renderer_scale_factor());
/* draw surface */
cairo_set_source_surface(cr, tsurface, 0, 0);
/* disable filtering */
cairo_pattern_set_filter(cairo_get_source(cr),
ui_renderer_filter());
/* disable antialiasing */
cairo_set_antialias(cr, ui_renderer_antialias());
/* render surface */
cairo_paint(cr);
/* reset transformation matrix */
cairo_identity_matrix(cr);
}
/* Draw chain of this hardware */
/* s =
* chain_get_surface(led_chain_get_privdata(led_hardware_get_chain(h)));
* cairo_set_source_surface(cr, s, 0, 0); cairo_paint(cr); */
}
cairo_destroy(cr);
return NFT_SUCCESS;
}
int main(int argc, char *argv[])
{
/** return value of main() */
int res = 1;
/* current configuration */
LedPrefs *prefs = NULL;
/* current setup */
LedSetup *setup = NULL;
/** framebuffer for captured image */
LedFrame *frame = NULL;
/* check binary version compatibility */
NFT_LED_CHECK_VERSION
/* set default loglevel to INFO */
nft_log_level_set(L_INFO);
/* initialize exit handlers */
int signals[] = { SIGHUP, SIGINT, SIGQUIT, SIGABRT };
unsigned int i;
for(i=0; i<sizeof(signals)/sizeof(int); i++)
{
if(signal(signals[i], _exit_signal_handler) == SIG_ERR)
{
NFT_LOG_PERROR("signal()");
goto _m_exit;
}
}
/* default fps */
_c.fps = 25;
/* default mechanism */
_c.method = METHOD_MIN+1;
/* default config-filename */
if(!led_prefs_default_filename(_c.prefsfile, sizeof(_c.prefsfile), ".ledcap.xml"))
goto _m_exit;
/* parse cmdline-arguments */
if(!_parse_args(argc, argv))
goto _m_exit;
/* print welcome msg */
NFT_LOG(L_INFO, "%s %s (c) D.Hiepler 2006-2012", PACKAGE_NAME, ledcap_version_long());
NFT_LOG(L_VERBOSE, "Loglevel: %s", nft_log_level_to_string(nft_log_level_get()));
/* initialize preferences context */
if(!(prefs = led_prefs_init()))
return -1;
/* parse prefs-file */
LedPrefsNode *pnode;
if(!(pnode = led_prefs_node_from_file(_c.prefsfile)))
{
NFT_LOG(L_ERROR, "Failed to open configfile \"%s\"",
_c.prefsfile);
goto _m_exit;
}
/* create setup from prefs-node */
if(!(setup = led_prefs_setup_from_node(prefs, pnode)))
{
NFT_LOG(L_ERROR, "No valid setup found in preferences file.");
led_prefs_node_free(pnode);
goto _m_exit;
}
/* free preferences node */
led_prefs_node_free(pnode);
/* determine width of input-frames */
LedFrameCord width, height;
if((width = led_setup_get_width(setup)) > _c.width)
{
NFT_LOG(L_WARNING, "LED-Setup width (%d) > our width (%d). Using setup-value",
width,_c.width);
/* use dimensions of mapped chain */
_c.width = width;
}
/* determine height of input-frames */
if((height = led_setup_get_height(setup)) > _c.height)
{
NFT_LOG(L_WARNING, "LED-Setup height (%d) > our height (%d). Using setup-value.",
height, _c.height);
/* use dimensions of mapped chain */
_c.height = height;
}
if(_c.width < 0)
{
NFT_LOG(L_ERROR, "width (%d) < 0", _c.width);
goto _m_exit;
}
if(_c.height < 0)
{
NFT_LOG(L_ERROR, "height (%d) < 0", _c.height);
goto _m_exit;
}
/* sanitize x-offset @todo check for maximum */
if(_c.x < 0)
{
NFT_LOG(L_ERROR, "Invalid x coordinate: %d, using 0", _c.x);
_c.x = 0;
}
/* sanitize y-offset @todo check for maximum */
if(_c.y < 0)
{
NFT_LOG(L_ERROR, "Invalid y coordinate: %d, using 0", _c.y);
_c.y = 0;
}
/* initialize capture mechanism (only imlib for now) */
if(!capture_init(_c.method))
goto _m_exit;
/* allocate framebuffer */
NFT_LOG(L_INFO, "Allocating frame: %dx%d (%s)",
_c.width, _c.height, capture_format());
if(!(frame = led_frame_new(_c.width, _c.height, led_pixel_format_from_string(capture_format()))))
goto _m_exit;
/* respect endianess */
led_frame_set_big_endian(frame, capture_is_big_endian());
/* get first hardware */
LedHardware *hw;
if(!(hw = led_setup_get_hardware(setup)))
goto _m_exit;
/* initialize pixel->led mapping */
if(!led_hardware_list_refresh_mapping(hw))
goto _m_exit;
/* precalc memory offsets for actual mapping */
if(!led_chain_map_from_frame(led_hardware_get_chain(hw), frame))
goto _m_exit;
/* set saved gain to all registered hardware instances */
if(!led_hardware_list_refresh_gain(hw))
goto _m_exit;
/* print some debug-info */
led_frame_print(frame, L_VERBOSE);
led_hardware_print(hw, L_VERBOSE);
/* initially sample time for frametiming */
if(!led_fps_sample())
goto _m_exit;
/* output some useful info */
NFT_LOG(L_INFO, "Capturing %dx%d pixels at position x/y: %d/%d", _c.width, _c.height, _c.x, _c.y);
/* loop until _c.running is set to FALSE */
_c.running = TRUE;
while(_c.running)
{
/* capture frame */
if(!(capture_frame(frame, _c.x, _c.y)))
break;
/* print frame for debugging */
//led_frame_buffer_print(frame);
/* map from frame */
LedHardware *h;
for(h = hw; h; h = led_hardware_list_get_next(h))
{
if(!led_chain_fill_from_frame(led_hardware_get_chain(h), frame))
{
NFT_LOG(L_ERROR, "Error while mapping frame");
break;
}
}
/* send frame to hardware(s) */
led_hardware_list_send(hw);
/* delay in respect to fps */
if(!led_fps_delay(_c.fps))
break;
/* show frame */
led_hardware_list_show(hw);
/* save time when frame is displayed */
if(!led_fps_sample())
break;
}
/* mark success */
res = 0;
_m_exit:
/* deinitialize capture mechanism */
capture_deinit();
/* free frame */
led_frame_destroy(frame);
/* destroy config */
led_setup_destroy(setup);
/* destroy config */
led_prefs_deinit(prefs);
return res;
}
