/* This is a generic rendering function. It works for all signal styles.
* The input always looks like one big PCM sample; if the input is really
* a spectrum, then it will have been transformed by blurk_render_pcm()
* into 256 PCM samples, with 20000 meaning "no sound" and smaller/negative
* values representing a lot of sound. This particular transformation was
* chosen simply because the normal PCM plotter can then produce a nice-looking
* spectrum graph.
*
* This function supports a variety of ways to plot the [pseudo-]PCM samples.
* In addition to the usual line graph, it can also mirror the line graph or
* produce a "bead" graph by passing the data off to render_bead().
* The decision of how to plot is based on the value of "variation".
*/
static void update_image(gint32 loudness, gint ndata, gint16 *data)
{
gint i, y, thick, quiet, center;
gint beat;
guchar *img;
gint width, height, bpl;
#if 0
/* If events are pending, then skip this frame */
if (gdk_events_pending())
return;
#endif
/* If we completed a resize operation a few seconds ago, then save the
* new size now.
*/
if (savewhen != 0L && time(NULL) >= savewhen)
{
//config_write(FALSE, NULL, NULL);
savewhen = 0L;
}
/* If we're supposed to be in fullscreen mode, and aren't, then
* toggle fullscreen mode now.
*/
#if 0
if (config.fullscreen_desired && !fullscreen_method)
blursk_fullscreen(FALSE);
#endif
/* Detect whether this is a beat, and choose a line thickness */
beat = detect_beat(loudness, &thick, &quiet);
/* If quiet, then maybe choose a new preset */
//if (quiet)
//preset_quiet();
/* Perform the blurring. This also affects whether the center of the
* signal will be moved lower in the window.
*/
center = img_height/2 + blur(beat, quiet);
/* Perform the fade or solid flash */
if (beat && !strcmp(config.flash_style, "Full flash"))
i = 60;
else
{
switch (config.fade_speed[0])
{
case 'S': i = -1; break; /* Slow */
case 'M': i = -3; break; /* Medium */
case 'F': i = -9; break; /* Fast */
default: i = 0; /* None */
}
}
if (i != 0)
loopfade(i);
/* special processing for "Invert" & bitmap logo flashes */
if (beat)
{
if (!strcmp(config.flash_style, "Invert flash"))
img_invert();
else if ((i = bitmap_index(config.flash_style)) >= 0)
bitmap_flash(i);
}
/* Maybe change hue on beats */
if (beat)
color_beat();
/* Add the signal data to the image */
render(thick, center, ndata, data);
/* Add floaters */
drawfloaters(beat);
/* shift the "ripple effect" from one frame to another */
img_rippleshift += 3; /* cyclic, since img_rippleshift is a guchar */
/* Apply the overall effect, if any */
if (!strcmp(config.overall_effect, "Bump effect"))
{
img = img_bump(&width, &height, &bpl);
}
else if (!strcmp(config.overall_effect, "Anti-fade effect"))
{
img = img_travel(&width, &height, &bpl);
}
else if (!strcmp(config.overall_effect, "Ripple effect"))
{
img = img_ripple(&width, &height, &bpl);
}
else /* "Normal effect" */
{
img = img_expand(&width, &height, &bpl);
}
/* show info about the track */
img = show_info(img, height, bpl);
/* Allow the background color to change */
color_bg(ndata, data);
/* Copy the image into the window. This also converts from
* 8-bits to 16/24/32 if necessary.
*/
#if 0
GDK_THREADS_ENTER();
#if HAVE_XV
if (!xv_putimg(img, width, height, bpl))
#endif
gdk_draw_indexed_image(area->window,
area->style->white_gc,
0, 0, width, height, GDK_RGB_DITHER_NONE,
img, bpl, color_map);
GDK_THREADS_LEAVE();
#endif
/* Convert colors */
uint32* pDst = (uint32*)blursk_bitmap->LockRaster();
uint8* pSrc = img;
for( y = 0; y < height; y++ )
{
for( i = 0; i < width; i++ )
{
*pDst++ = color_map[*pSrc++];
}
pSrc += bpl - width;
}
blursk_view->DrawBitmap( blursk_bitmap, blursk_bitmap->GetBounds(), blursk_bitmap->GetBounds() );
blursk_view->Flush();
}
/* This is a generic rendering function. It works for all signal styles.
* The input always looks like one big PCM sample; if the input is really
* a spectrum, then it will have been transformed by blurk_render_pcm()
* into 256 PCM samples, with 20000 meaning "no sound" and smaller/negative
* values representing a lot of sound. This particular transformation was
* chosen simply because the normal PCM plotter can then produce a nice-looking
* spectrum graph.
*
* This function supports a variety of ways to plot the [pseudo-]PCM samples.
* In addition to the usual line graph, it can also mirror the line graph or
* produce a "bead" graph by passing the data off to render_bead().
* The decision of how to plot is based on the value of "variation".
*/
static void update_image(BlurskPrivate *priv, int32_t loudness, int ndata, int16_t *data)
{
int i, thick, quiet, center;
int beat;
int width, height, bpl;
/* Detect whether this is a beat, and choose a line thickness */
beat = detect_beat(loudness, &thick, &quiet);
/* Perform the blurring. This also affects whether the center of the
* signal will be moved lower in the window.
*/
center = img_height/2 + blur(priv, beat, quiet);
/* Perform the fade or solid flash */
if (beat && !strcmp(config.flash_style, "Full flash"))
i = 60;
else
{
switch (config.fade_speed[0])
{
case 'S': i = -1; break; /* Slow */
case 'M': i = -3; break; /* Medium */
case 'F': i = -9; break; /* Fast */
case 'N':
default: i = 0; /* None */
}
}
if (i != 0)
loopfade(i);
/* special processing for "Invert" & bitmap logo flashes */
if (beat)
{
if (!strcmp(config.flash_style, "Invert flash"))
img_invert();
else if ((i = bitmap_index(config.flash_style)) >= 0)
bitmap_flash(i);
}
/* Maybe change hue on beats */
if (beat)
color_beat(priv);
/* Add the signal data to the image */
render(thick, center, ndata, data);
/* Add floaters */
drawfloaters(beat);
/* shift the "ripple effect" from one frame to another */
img_rippleshift += 3; /* cyclic, since img_rippleshift is a unsigned char */
/* Apply the overall effect, if any */
if (!strcmp(config.overall_effect, "Bump effect"))
{
priv->rgb_buf = img_bump(&width, &height, &bpl);
}
else if (!strcmp(config.overall_effect, "Anti-fade effect"))
{
priv->rgb_buf = img_travel(&width, &height, &bpl);
}
else if (!strcmp(config.overall_effect, "Ripple effect"))
{
priv->rgb_buf = img_ripple(&width, &height, &bpl);
}
else /* "Normal effect" */
{
priv->rgb_buf = img_expand(&width, &height, &bpl);
}
priv->rgb_buf = show_info(priv->rgb_buf, height, bpl);
/* Allow the background color to change */
color_bg(priv, ndata, data);
}