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Added waterfall_clear()

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This commit is contained in:
ha7ilm 2016-08-11 22:53:28 +02:00
parent 5b360f86ea
commit 327ef6b51b
1 changed files with 31 additions and 15 deletions
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46
htdocs/openwebrx.js
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@ -1894,26 +1894,30 @@ function waterfall_add(data)
waterfall_image.data[base+x*4+i] = ((color>>>0)>>((3-i)*8))&0xff; waterfall_image.data[base+x*4+i] = ((color>>>0)>>((3-i)*8))&0xff;
}*/ }*/
//Add line to waterfall image
oneline_image = canvas_context.createImageData(w,1);
for(x=0;x<w;x++)
{
color=waterfall_mkcolor(data[x]);
for(i=0;i<4;i++)
oneline_image.data[x*4+i] = ((color>>>0)>>((3-i)*8))&0xff;
}
//Draw image
canvas_context.putImageData(oneline_image, 0, canvas_actual_line--);
shift_canvases();
if(canvas_actual_line<0) add_canvas();
//Handle mathbox
if(mathbox_mode==MATHBOX_MODES.WATERFALL) if(mathbox_mode==MATHBOX_MODES.WATERFALL)
{ {
//Handle mathbox
for(var i=0;i<fft_size;i++) mathbox_data[i+mathbox_data_index*fft_size]=data[i]; for(var i=0;i<fft_size;i++) mathbox_data[i+mathbox_data_index*fft_size]=data[i];
mathbox_shift(); mathbox_shift();
} }
else
{
//Add line to waterfall image
oneline_image = canvas_context.createImageData(w,1);
for(x=0;x<w;x++)
{
color=waterfall_mkcolor(data[x]);
for(i=0;i<4;i++)
oneline_image.data[x*4+i] = ((color>>>0)>>((3-i)*8))&0xff;
}
//Draw image
canvas_context.putImageData(oneline_image, 0, canvas_actual_line--);
shift_canvases();
if(canvas_actual_line<0) add_canvas();
}
} }
/* /*
@ -2101,6 +2105,18 @@ function mathbox_toggle()
if(mathbox_mode == MATHBOX_MODES.UNINITIALIZED) mathbox_init(); if(mathbox_mode == MATHBOX_MODES.UNINITIALIZED) mathbox_init();
mathbox_mode = (mathbox_mode == MATHBOX_MODES.NONE) ? MATHBOX_MODES.WATERFALL : MATHBOX_MODES.NONE; mathbox_mode = (mathbox_mode == MATHBOX_MODES.NONE) ? MATHBOX_MODES.WATERFALL : MATHBOX_MODES.NONE;
mathbox_clear_data(); mathbox_clear_data();
waterfall_clear();
}
function waterfall_clear()
{
while(canvases.length) //delete all canvases
{
var x=canvases.shift();
x.parentNode.removeChild(x);
delete x;
}
add_canvas();
} }
function openwebrx_resize() function openwebrx_resize()