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ENGR00120523 Down sizing of stream bigger then 1024 two stripe failed

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Fix stripe size calculation

Signed-off-by: Ran Ferderber r53561@freescale.com
This commit is contained in:
Ran Ferderber
2010-01-27 16:21:07 +02:00
committed by Matt Sealey
parent 7a5f1cc19f
commit 7fdcf663c9
1 changed files with 3 additions and 4 deletions
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7
drivers/mxc/ipu3/ipu_calc_stripes_sizes.c
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@@ -1,5 +1,5 @@
/*
* Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
@@ -223,8 +223,7 @@ int ipu_calc_stripes_sizes(const unsigned int input_frame_width,
output_m = m_calc(output_pixelformat);
if ((output_frame_width < input_frame_width) || (input_frame_width < 4)
|| (output_frame_width < 4))
if ((input_frame_width < 4) || (output_frame_width < 4))
return 1;
irr_opt = _do_div((((u64)(input_frame_width - 1)) << 32),
@@ -266,7 +265,7 @@ int ipu_calc_stripes_sizes(const unsigned int input_frame_width,
(right->input_width - 1)), (right->output_width - 1));
left->irr = right->irr = truncate(0, div, 1);
} else { /* with overlap */
onw = truncate(0, (((u64)output_frame_width) << 32) >> 1,
onw = truncate(0, (((u64)output_frame_width - 1) << 32) >> 1,
output_f);
inw = truncate(0, onw * irr_opt, input_f);
/* this is the maximal inw which allows the same resizing ratio */