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let decoders decide about vpos

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This commit is contained in:
Ahmet Inan 2015-01-01 19:24:55 +01:00
parent 63e949332d
commit 8421a984e7
1 changed files with 17 additions and 8 deletions
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25
app/src/main/rs/decoder.rs
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@ -64,26 +64,33 @@ static void save_buffer()
static void robot36_decoder()
{
static int prev_timeout, mismatch_counter;
static int prev_timeout, mismatch_counter, parity, latch;
if (!prev_timeout && 2 * abs(seperator_counter) > seperator_length)
mismatch_counter = (vpos & 1) ^ (seperator_counter > 0) ? mismatch_counter + 1 : 0;
mismatch_counter = parity ^ (seperator_counter > 0) ? mismatch_counter + 1 : 0;
if ((free_running && mismatch_counter > 1) || mismatch_counter > 5)
vpos ^= 1;
parity ^= 1;
if (!free_running && !vpos && !latch) {
parity = 0;
latch = 1;
}
prev_timeout = hpos >= maximum_length;
static int even_sync_pos, odd_sync_pos;
if (vpos & 1) {
if (parity) {
odd_sync_pos = prev_sync_pos;
for (int i = 0; i < bitmap_width; ++i) {
uchar even_y = value_blur(i, even_sync_pos + y_begin, even_sync_pos + y_end);
uchar v = value_blur(i, even_sync_pos + v_begin, even_sync_pos + v_end);
uchar odd_y = value_blur(i, odd_sync_pos + y_begin, odd_sync_pos + y_end);
uchar u = value_blur(i, odd_sync_pos + u_begin, odd_sync_pos + u_end);
pixel_buffer[bitmap_width * (vpos-1) + i] = yuv(even_y, u, v);
pixel_buffer[bitmap_width * vpos + i] = yuv(odd_y, u, v);
pixel_buffer[bitmap_width * vpos + i] = yuv(even_y, u, v);
pixel_buffer[bitmap_width * (vpos+1) + i] = yuv(odd_y, u, v);
}
vpos += 2;
latch = 0;
} else {
even_sync_pos = prev_sync_pos;
}
parity ^= 1;
}
static void yuv_decoder()
@ -94,6 +101,7 @@ static void yuv_decoder()
uchar v = value_blur(i, v_begin + prev_sync_pos, v_end + prev_sync_pos);
pixel_buffer[bitmap_width * vpos + i] = yuv(y, u, v);
}
++vpos;
}
static void rgb_decoder()
@ -104,6 +112,7 @@ static void rgb_decoder()
uchar b = value_blur(i, b_begin + prev_sync_pos, b_end + prev_sync_pos);
pixel_buffer[bitmap_width * vpos + i] = rgb(r, g, b);
}
++vpos;
}
static void raw_decoder()
@ -112,6 +121,7 @@ static void raw_decoder()
uchar value = value_blur(i, prev_sync_pos, sync_pos);
pixel_buffer[bitmap_width * vpos + i] = rgb(value, value, value);
}
++vpos;
}
// don't you guys have anything better to do?
@ -209,8 +219,7 @@ void decode(int samples) {
default:
raw_decoder();
}
++vpos;
if (vpos == bitmap_height)
if (vpos >= bitmap_height)
save_buffer();
if (vpos >= maximum_height)
vpos = 0;