As discussed on the media summit 2013, there is no reason for the width
and height to be signed.
Therefore this patch is an attempt to convert those fields from __s32 to
__u32.
---
v6: Comments by Hans and rebase
-Update version in doc to 3.14
-Remove obsolete <!-- comment
v5: Comments by Sakari Ailus
-Fix typos in summary
v4: Wrong patch format
v3: Comments by Sakari Ailus
-Update also doc
v2: Comments by Sakari Ailus and Laurent Pinchart
-Fix alignment on all drivers
-Replace min with min_t where possible and remove unneeded checks
Acked-by: Sakari Ailus <sakari.ailus@xxxxxx> (documentation and smiapp)
Acked-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
Documentation/DocBook/media/v4l/compat.xml | 12 ++++++++
Documentation/DocBook/media/v4l/dev-overlay.xml | 9 ++----
Documentation/DocBook/media/v4l/v4l2.xml | 10 ++++++-
Documentation/DocBook/media/v4l/vidioc-cropcap.xml | 8 ++---
drivers/media/i2c/mt9m032.c | 16 +++++-----
drivers/media/i2c/mt9p031.c | 28 ++++++++++--------
drivers/media/i2c/mt9t001.c | 26 ++++++++++-------
drivers/media/i2c/mt9v032.c | 34 ++++++++++++----------
drivers/media/i2c/smiapp/smiapp-core.c | 8 ++---
drivers/media/i2c/soc_camera/mt9m111.c | 4 +--
drivers/media/i2c/tvp5150.c | 14 ++++-----
drivers/media/pci/bt8xx/bttv-driver.c | 6 ++--
drivers/media/pci/saa7134/saa7134-video.c | 4 ---
drivers/media/platform/soc_camera/soc_scale_crop.c | 4 +--
include/uapi/linux/videodev2.h | 4 +--
15 files changed, 106 insertions(+), 81 deletions(-)
diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml
index 0c7195e..c4cac6d 100644
--- a/Documentation/DocBook/media/v4l/compat.xml
+++ b/Documentation/DocBook/media/v4l/compat.xml
@@ -2523,6 +2523,18 @@ that used it. It was originally scheduled for removal in 2.6.35.
</orderedlist>
</section>
+ <section>
+ <title>V4L2 in Linux 3.14</title>
+ <orderedlist>
+ <listitem>
+ <para> In struct <structname>v4l2_rect</structname>, the type
+of <structfield>width</structfield> and <structfield>height</structfield>
+fields changed from _s32 to _u32.
+ </para>
+ </listitem>
+ </orderedlist>
+ </section>
+
<section id="other">
<title>Relation of V4L2 to other Linux multimedia APIs</title>
diff --git a/Documentation/DocBook/media/v4l/dev-overlay.xml b/Documentation/DocBook/media/v4l/dev-overlay.xml
index 40d1d76..cc6e0c5 100644
--- a/Documentation/DocBook/media/v4l/dev-overlay.xml
+++ b/Documentation/DocBook/media/v4l/dev-overlay.xml
@@ -346,17 +346,14 @@ rectangle, in pixels.</entry>
rectangle, in pixels. Offsets increase to the right and down.</entry>
</row>
<row>
- <entry>__s32</entry>
+ <entry>__u32</entry>
<entry><structfield>width</structfield></entry>
<entry>Width of the rectangle, in pixels.</entry>
</row>
<row>
- <entry>__s32</entry>
+ <entry>__u32</entry>
<entry><structfield>height</structfield></entry>
- <entry>Height of the rectangle, in pixels. Width and
-height cannot be negative, the fields are signed for hysterical
-reasons. <!-- video4linux-list@xxxxxxxxxx on 22 Oct 2002 subject
-"Re:[V4L][patches!] Re:v4l2/kernel-2.5" --></entry>
+ <entry>Height of the rectangle, in pixels.</entry>
</row>
</tbody>
</tgroup>
diff --git a/Documentation/DocBook/media/v4l/v4l2.xml b/Documentation/DocBook/media/v4l/v4l2.xml
index 8469fe1..74b7f27 100644
--- a/Documentation/DocBook/media/v4l/v4l2.xml
+++ b/Documentation/DocBook/media/v4l/v4l2.xml
@@ -141,6 +141,14 @@ structs, ioctls) must be noted in more detail in the history chapter
applications. -->
<revision>
+ <revnumber>3.14</revnumber>
+ <date>2013-11-25</date>
+ <authorinitials>rr</authorinitials>
+ <revremark>Set width and height as unsigned on v4l2_rect.
+ </revremark>
+ </revision>
+
+ <revision>
<revnumber>3.11</revnumber>
<date>2013-05-26</date>
<authorinitials>hv</authorinitials>
@@ -501,7 +509,7 @@ and discussions on the V4L mailing list.</revremark>
</partinfo>
<title>Video for Linux Two API Specification</title>
- <subtitle>Revision 3.11</subtitle>
+ <subtitle>Revision 3.14</subtitle>
<chapter id="common">
&sub-common;
diff --git a/Documentation/DocBook/media/v4l/vidioc-cropcap.xml b/Documentation/DocBook/media/v4l/vidioc-cropcap.xml
index bf7cc97..26b8f8f 100644
--- a/Documentation/DocBook/media/v4l/vidioc-cropcap.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-cropcap.xml
@@ -133,16 +133,14 @@ rectangle, in pixels.</entry>
rectangle, in pixels.</entry>
</row>
<row>
- <entry>__s32</entry>
+ <entry>__u32</entry>
<entry><structfield>width</structfield></entry>
<entry>Width of the rectangle, in pixels.</entry>
</row>
<row>
- <entry>__s32</entry>
+ <entry>__u32</entry>
<entry><structfield>height</structfield></entry>
- <entry>Height of the rectangle, in pixels. Width
-and height cannot be negative, the fields are signed for
-hysterical reasons. <!-- video4linux-list@xxxxxxxxxx
+ <entry>Height of the rectangle, in pixels.<!-- video4linux-list@xxxxxxxxxx
on 22 Oct 2002 subject "Re:[V4L][patches!] Re:v4l2/kernel-2.5" -->
</entry>
</row>
diff --git a/drivers/media/i2c/mt9m032.c b/drivers/media/i2c/mt9m032.c
index 846b15f..85ec3ba 100644
--- a/drivers/media/i2c/mt9m032.c
+++ b/drivers/media/i2c/mt9m032.c
@@ -459,13 +459,15 @@ static int mt9m032_set_pad_crop(struct v4l2_subdev *subdev,
MT9M032_COLUMN_START_MAX);
rect.top = clamp(ALIGN(crop->rect.top, 2), MT9M032_ROW_START_MIN,
MT9M032_ROW_START_MAX);
- rect.width = clamp(ALIGN(crop->rect.width, 2), MT9M032_COLUMN_SIZE_MIN,
- MT9M032_COLUMN_SIZE_MAX);
- rect.height = clamp(ALIGN(crop->rect.height, 2), MT9M032_ROW_SIZE_MIN,
- MT9M032_ROW_SIZE_MAX);
-
- rect.width = min(rect.width, MT9M032_PIXEL_ARRAY_WIDTH - rect.left);
- rect.height = min(rect.height, MT9M032_PIXEL_ARRAY_HEIGHT - rect.top);
+ rect.width = clamp_t(unsigned int, ALIGN(crop->rect.width, 2),
+ MT9M032_COLUMN_SIZE_MIN, MT9M032_COLUMN_SIZE_MAX);
+ rect.height = clamp_t(unsigned int, ALIGN(crop->rect.height, 2),
+ MT9M032_ROW_SIZE_MIN, MT9M032_ROW_SIZE_MAX);
+
+ rect.width = min_t(unsigned int, rect.width,
+ MT9M032_PIXEL_ARRAY_WIDTH - rect.left);
+ rect.height = min_t(unsigned int, rect.height,
+ MT9M032_PIXEL_ARRAY_HEIGHT - rect.top);
__crop = __mt9m032_get_pad_crop(sensor, fh, crop->which);
diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c
index 4734836..722f78a 100644
--- a/drivers/media/i2c/mt9p031.c
+++ b/drivers/media/i2c/mt9p031.c
@@ -518,11 +518,13 @@ static int mt9p031_set_format(struct v4l2_subdev *subdev,
/* Clamp the width and height to avoid dividing by zero. */
width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
- max(__crop->width / 7, MT9P031_WINDOW_WIDTH_MIN),
+ max_t(unsigned int, __crop->width / 7,
+ MT9P031_WINDOW_WIDTH_MIN),
__crop->width);
height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
- max(__crop->height / 8, MT9P031_WINDOW_HEIGHT_MIN),
- __crop->height);
+ max_t(unsigned int, __crop->height / 8,
+ MT9P031_WINDOW_HEIGHT_MIN),
+ __crop->height);
hratio = DIV_ROUND_CLOSEST(__crop->width, width);
vratio = DIV_ROUND_CLOSEST(__crop->height, height);
@@ -564,15 +566,17 @@ static int mt9p031_set_crop(struct v4l2_subdev *subdev,
MT9P031_COLUMN_START_MAX);
rect.top = clamp(ALIGN(crop->rect.top, 2), MT9P031_ROW_START_MIN,
MT9P031_ROW_START_MAX);
- rect.width = clamp(ALIGN(crop->rect.width, 2),
- MT9P031_WINDOW_WIDTH_MIN,
- MT9P031_WINDOW_WIDTH_MAX);
- rect.height = clamp(ALIGN(crop->rect.height, 2),
- MT9P031_WINDOW_HEIGHT_MIN,
- MT9P031_WINDOW_HEIGHT_MAX);
-
- rect.width = min(rect.width, MT9P031_PIXEL_ARRAY_WIDTH - rect.left);
- rect.height = min(rect.height, MT9P031_PIXEL_ARRAY_HEIGHT - rect.top);
+ rect.width = clamp_t(unsigned int, ALIGN(crop->rect.width, 2),
+ MT9P031_WINDOW_WIDTH_MIN,
+ MT9P031_WINDOW_WIDTH_MAX);
+ rect.height = clamp_t(unsigned int, ALIGN(crop->rect.height, 2),
+ MT9P031_WINDOW_HEIGHT_MIN,
+ MT9P031_WINDOW_HEIGHT_MAX);
+
+ rect.width = min_t(unsigned int, rect.width,
+ MT9P031_PIXEL_ARRAY_WIDTH - rect.left);
+ rect.height = min_t(unsigned int, rect.height,
+ MT9P031_PIXEL_ARRAY_HEIGHT - rect.top);
__crop = __mt9p031_get_pad_crop(mt9p031, fh, crop->pad, crop->which);
diff --git a/drivers/media/i2c/mt9t001.c b/drivers/media/i2c/mt9t001.c
index 7964634..d41c70e 100644
--- a/drivers/media/i2c/mt9t001.c
+++ b/drivers/media/i2c/mt9t001.c
@@ -291,10 +291,12 @@ static int mt9t001_set_format(struct v4l2_subdev *subdev,
/* Clamp the width and height to avoid dividing by zero. */
width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
- max(__crop->width / 8, MT9T001_WINDOW_HEIGHT_MIN + 1),
+ max_t(unsigned int, __crop->width / 8,
+ MT9T001_WINDOW_HEIGHT_MIN + 1),
__crop->width);
height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
- max(__crop->height / 8, MT9T001_WINDOW_HEIGHT_MIN + 1),
+ max_t(unsigned int, __crop->height / 8,
+ MT9T001_WINDOW_HEIGHT_MIN + 1),
__crop->height);
hratio = DIV_ROUND_CLOSEST(__crop->width, width);
@@ -339,15 +341,17 @@ static int mt9t001_set_crop(struct v4l2_subdev *subdev,
rect.top = clamp(ALIGN(crop->rect.top, 2),
MT9T001_ROW_START_MIN,
MT9T001_ROW_START_MAX);
- rect.width = clamp(ALIGN(crop->rect.width, 2),
- MT9T001_WINDOW_WIDTH_MIN + 1,
- MT9T001_WINDOW_WIDTH_MAX + 1);
- rect.height = clamp(ALIGN(crop->rect.height, 2),
- MT9T001_WINDOW_HEIGHT_MIN + 1,
- MT9T001_WINDOW_HEIGHT_MAX + 1);
-
- rect.width = min(rect.width, MT9T001_PIXEL_ARRAY_WIDTH - rect.left);
- rect.height = min(rect.height, MT9T001_PIXEL_ARRAY_HEIGHT - rect.top);
+ rect.width = clamp_t(unsigned int, ALIGN(crop->rect.width, 2),
+ MT9T001_WINDOW_WIDTH_MIN + 1,
+ MT9T001_WINDOW_WIDTH_MAX + 1);
+ rect.height = clamp_t(unsigned int, ALIGN(crop->rect.height, 2),
+ MT9T001_WINDOW_HEIGHT_MIN + 1,
+ MT9T001_WINDOW_HEIGHT_MAX + 1);
+
+ rect.width = min_t(unsigned int, rect.width,
+ MT9T001_PIXEL_ARRAY_WIDTH - rect.left);
+ rect.height = min_t(unsigned int, rect.height,
+ MT9T001_PIXEL_ARRAY_HEIGHT - rect.top);
__crop = __mt9t001_get_pad_crop(mt9t001, fh, crop->pad, crop->which);
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
index 2c50eff..ba8da9b 100644
--- a/drivers/media/i2c/mt9v032.c
+++ b/drivers/media/i2c/mt9v032.c
@@ -420,12 +420,14 @@ static int mt9v032_set_format(struct v4l2_subdev *subdev,
format->which);
/* Clamp the width and height to avoid dividing by zero. */
- width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
- max(__crop->width / 8, MT9V032_WINDOW_WIDTH_MIN),
- __crop->width);
- height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
- max(__crop->height / 8, MT9V032_WINDOW_HEIGHT_MIN),
- __crop->height);
+ width = clamp(ALIGN(format->format.width, 2),
+ max_t(unsigned int, __crop->width / 8,
+ MT9V032_WINDOW_WIDTH_MIN),
+ __crop->width);
+ height = clamp(ALIGN(format->format.height, 2),
+ max_t(unsigned int, __crop->height / 8,
+ MT9V032_WINDOW_HEIGHT_MIN),
+ __crop->height);
hratio = DIV_ROUND_CLOSEST(__crop->width, width);
vratio = DIV_ROUND_CLOSEST(__crop->height, height);
@@ -471,15 +473,17 @@ static int mt9v032_set_crop(struct v4l2_subdev *subdev,
rect.top = clamp(ALIGN(crop->rect.top + 1, 2) - 1,
MT9V032_ROW_START_MIN,
MT9V032_ROW_START_MAX);
- rect.width = clamp(ALIGN(crop->rect.width, 2),
- MT9V032_WINDOW_WIDTH_MIN,
- MT9V032_WINDOW_WIDTH_MAX);
- rect.height = clamp(ALIGN(crop->rect.height, 2),
- MT9V032_WINDOW_HEIGHT_MIN,
- MT9V032_WINDOW_HEIGHT_MAX);
-
- rect.width = min(rect.width, MT9V032_PIXEL_ARRAY_WIDTH - rect.left);
- rect.height = min(rect.height, MT9V032_PIXEL_ARRAY_HEIGHT - rect.top);
+ rect.width = clamp_t(unsigned int, ALIGN(crop->rect.width, 2),
+ MT9V032_WINDOW_WIDTH_MIN,
+ MT9V032_WINDOW_WIDTH_MAX);
+ rect.height = clamp_t(unsigned int, ALIGN(crop->rect.height, 2),
+ MT9V032_WINDOW_HEIGHT_MIN,
+ MT9V032_WINDOW_HEIGHT_MAX);
+
+ rect.width = min_t(unsigned int,
+ rect.width, MT9V032_PIXEL_ARRAY_WIDTH - rect.left);
+ rect.height = min_t(unsigned int,
+ rect.height, MT9V032_PIXEL_ARRAY_HEIGHT - rect.top);
__crop = __mt9v032_get_pad_crop(mt9v032, fh, crop->pad, crop->which);
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index ae66d91..3fadb9e 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -2028,8 +2028,8 @@ static int smiapp_set_crop(struct v4l2_subdev *subdev,
sel->r.width = min(sel->r.width, src_size->width);
sel->r.height = min(sel->r.height, src_size->height);
- sel->r.left = min(sel->r.left, src_size->width - sel->r.width);
- sel->r.top = min(sel->r.top, src_size->height - sel->r.height);
+ sel->r.left = min_t(int, sel->r.left, src_size->width - sel->r.width);
+ sel->r.top = min_t(int, sel->r.top, src_size->height - sel->r.height);
*crops[sel->pad] = sel->r;
@@ -2121,8 +2121,8 @@ static int smiapp_set_selection(struct v4l2_subdev *subdev,
sel->r.left = max(0, sel->r.left & ~1);
sel->r.top = max(0, sel->r.top & ~1);
- sel->r.width = max(0, SMIAPP_ALIGN_DIM(sel->r.width, sel->flags));
- sel->r.height = max(0, SMIAPP_ALIGN_DIM(sel->r.height, sel->flags));
+ sel->r.width = SMIAPP_ALIGN_DIM(sel->r.width, sel->flags);
+ sel->r.height = SMIAPP_ALIGN_DIM(sel->r.height, sel->flags);
sel->r.width = max_t(unsigned int,
sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE],
diff --git a/drivers/media/i2c/soc_camera/mt9m111.c b/drivers/media/i2c/soc_camera/mt9m111.c
index 6f40566..ccf5940 100644
--- a/drivers/media/i2c/soc_camera/mt9m111.c
+++ b/drivers/media/i2c/soc_camera/mt9m111.c
@@ -208,8 +208,8 @@ struct mt9m111 {
struct mt9m111_context *ctx;
struct v4l2_rect rect; /* cropping rectangle */
struct v4l2_clk *clk;
- int width; /* output */
- int height; /* sizes */
+ unsigned int width; /* output */
+ unsigned int height; /* sizes */
struct mutex power_lock; /* lock to protect power_count */
int power_count;
const struct mt9m111_datafmt *fmt;
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 89c0b13..7b8962e 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -867,7 +867,7 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
struct v4l2_rect rect = a->c;
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std;
- int hmax;
+ unsigned int hmax;
v4l2_dbg(1, debug, sd, "%s left=%d, top=%d, width=%d, height=%d\n",
__func__, rect.left, rect.top, rect.width, rect.height);
@@ -877,9 +877,9 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
/* tvp5150 has some special limits */
rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
- rect.width = clamp(rect.width,
- TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
- TVP5150_H_MAX - rect.left);
+ rect.width = clamp_t(unsigned int, rect.width,
+ TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
+ TVP5150_H_MAX - rect.left);
rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
/* Calculate height based on current standard */
@@ -893,9 +893,9 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
else
hmax = TVP5150_V_MAX_OTHERS;
- rect.height = clamp(rect.height,
- hmax - TVP5150_MAX_CROP_TOP - rect.top,
- hmax - rect.top);
+ rect.height = clamp_t(unsigned int, rect.height,
+ hmax - TVP5150_MAX_CROP_TOP - rect.top,
+ hmax - rect.top);
tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index a3b1ee9..7b135da 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -1126,9 +1126,9 @@ bttv_crop_calc_limits(struct bttv_crop *c)
c->min_scaled_height = 32;
} else {
c->min_scaled_width =
- (max(48, c->rect.width >> 4) + 3) & ~3;
+ (max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3;
c->min_scaled_height =
- max(32, c->rect.height >> 4);
+ max_t(unsigned int, 32, c->rect.height >> 4);
}
c->max_scaled_width = c->rect.width & ~3;
@@ -2024,7 +2024,7 @@ limit_scaled_size_lock (struct bttv_fh * fh,
/* We cannot scale up. When the scaled image is larger
than crop.rect we adjust the crop.rect as required
by the V4L2 spec, hence cropcap.bounds are our limit. */
- max_width = min(b->width, (__s32) MAX_HACTIVE);
+ max_width = min_t(unsigned int, b->width, MAX_HACTIVE);
max_height = b->height;
/* We cannot capture the same line as video and VBI data.
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index fb60da8..bdbd805 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -1979,10 +1979,6 @@ static int saa7134_s_crop(struct file *file, void *f, const struct v4l2_crop *cr
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
return -EINVAL;
- if (crop->c.height < 0)
- return -EINVAL;
- if (crop->c.width < 0)
- return -EINVAL;
if (res_locked(fh->dev, RESOURCE_OVERLAY))
return -EBUSY;
diff --git a/drivers/media/platform/soc_camera/soc_scale_crop.c b/drivers/media/platform/soc_camera/soc_scale_crop.c
index cbd3a34..8e74fb7 100644
--- a/drivers/media/platform/soc_camera/soc_scale_crop.c
+++ b/drivers/media/platform/soc_camera/soc_scale_crop.c
@@ -141,8 +141,8 @@ int soc_camera_client_s_crop(struct v4l2_subdev *sd,
* Popular special case - some cameras can only handle fixed sizes like
* QVGA, VGA,... Take care to avoid infinite loop.
*/
- width = max(cam_rect->width, 2);
- height = max(cam_rect->height, 2);
+ width = max_t(unsigned int, cam_rect->width, 2);
+ height = max_t(unsigned int, cam_rect->height, 2);
/*
* Loop as long as sensor is not covering the requested rectangle and
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 437f1b0..6ae7bbe 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -207,8 +207,8 @@ enum v4l2_priority {
struct v4l2_rect {
__s32 left;
__s32 top;
- __s32 width;
- __s32 height;
+ __u32 width;
+ __u32 height;
};
struct v4l2_fract {
--
1.8.4.3
--
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