Korkut Gule wrote:
Hi Guys,
If i am receiving data in format of IYU1 (aka Y411) can i use any of the
YUV surfaces in DirectFB ? Or the best way would be converting it to RGB
? I would like to copy image buffer to surface directly and flip it.
Best Regards !
Probably the best way would be converting the image to YUY2.
For example the following function converts a Y411 image to YUY2 in
little-endian byte order:
void
Y411_to_YUY2_LE( vodi *src, void *dst,
int src_pitch, int dst_pitch,
int width, int height )
{
unsigned char *S;
unsigned int *D;
int n;
while (height--) {
for (S = src, D = dst, n = width/4; n--;) {
// Y0 U2 Y1 V2
D[0] = S[1] | (S[0] << 8) | (S[2] << 16) | (S[3] << 24);
// Y2 U2 Y3 V2
D[1] = S[4] | (S[0] << 8) | (S[5] << 16) | (S[3] << 24);
S += 12;
D += 2;
}
src += src_pitch;
dst += dst_pitch;
}
}
--
Regards,
Claudio Ciccani
[EMAIL PROTECTED]
http://directfb.org
http://sf.net/projects/php-directfb
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