mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 00:06:36 +00:00
21 lines
418 B
C
21 lines
418 B
C
|
#include "v3d.h"
|
||
|
|
|
||
|
|
void
|
||
|
|
v3d_to_v2d (v3d * v3, int nbvertex, int width, int height, float distance,
|
||
|
|
v2d * v2)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < nbvertex; ++i) {
|
||
|
|
if (v3[i].z > 2) {
|
||
|
|
int Xp, Yp;
|
||
|
|
|
||
|
|
F2I ((distance * v3[i].x / v3[i].z), Xp);
|
||
|
|
F2I ((distance * v3[i].y / v3[i].z), Yp);
|
||
|
|
v2[i].x = Xp + (width >> 1);
|
||
|
|
v2[i].y = -Yp + (height >> 1);
|
||
|
|
} else
|
||
|
|
v2[i].x = v2[i].y = -666;
|
||
|
|
}
|
||
|
|
}
|