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authorRobert Jarzmik <robert.jarzmik@free.fr>2009-03-31 03:44:21 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-04-06 21:43:45 -0300
commit37f5aefd537d5f98b3fa9726362effeccf1d2161 (patch)
treec9a27e6f7f5ada15c3774b79b394030552bd4798 /Documentation/usb
parent92a8337b380f0978ac81f096d6324d3ad689f83e (diff)
V4L/DVB (11320): pxa_camera: Remove YUV planar formats hole
All planes were PAGE aligned (ie. 4096 bytes aligned). This is not consistent with YUV422 format, which requires Y, U and V planes glued together. The new implementation forces the alignement on 8 bytes (DMA requirement), which is almost always the case (granted by width x height being a multiple of 8). The test cases include tests in both YUV422 and RGB565 : - a picture of size 111 x 111 (cross RAM pages example) - a picture of size 1023 x 4 in (under 1 RAM page) - a picture of size 1024 x 4 in (exactly 1 RAM page) - a picture of size 1025 x 4 in (over 1 RAM page) - a picture of size 1280 x 1024 (many RAM pages) Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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