mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-10-31 22:25:38 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

spa/plugins/videotestsrc: Draw correctly for all resolutions

Browse source 
Use an incremented variable to support all resolutions. If the width of
the pludge part of the test image was not dividable by three, a
rounding error made the resulting pattern containing noise.
This commit is contained in:
Linus Svensson 2016-11-16 13:59:32 +01:00 • committed by Wim Taymans
parent 740125a12e
commit cba22d0e39
1 changed files with 15 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

22
spa/plugins/videotestsrc/draw.c
View file

@ -217,22 +217,30 @@ draw_smpte_snow (DrawingData *dd)
}
for (i = y2; i < h; i++) {
int x = 0;
/* negative I */
draw_pixels (dd, 0 * w / 6, NEG_I, w / 6);
draw_pixels (dd, x, NEG_I, w / 6);
x += w / 6;
/* white */
draw_pixels (dd, 1 * w / 6, WHITE, w / 6);
draw_pixels (dd, x, WHITE, w / 6);
x += w / 6;
/* positive Q */
draw_pixels (dd, 2 * w / 6, POS_Q, w / 6);
draw_pixels (dd, x, POS_Q, w / 6);
x += w / 6;
/* pluge */
draw_pixels (dd, 6 * w / 12, DARK_BLACK, w / 12);
draw_pixels (dd, 7 * w / 12, BLACK, w / 12);
draw_pixels (dd, 8 * w / 12, LIGHT_BLACK, w / 12);
draw_pixels (dd, x, DARK_BLACK, w / 12);
x += w / 12;
draw_pixels (dd, x, BLACK, w / 12);
x += w / 12;
draw_pixels (dd, x, LIGHT_BLACK, w / 12);
x += w / 12;
/* war of the ants (a.k.a. snow) */
for (j = 9 * w / 12; j < w; j++) {
for (j = x; j < w; j++) {
Pixel p;
unsigned char r = rand ();