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videoscale: hack to fix invalid reads in linear

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=633837
This commit is contained in:
David Schleef 2011-04-23 13:42:23 -07:00 committed by Tim-Philipp Müller
parent ce9406f4d6
commit d4dbebc606
1 changed files with 18 additions and 18 deletions
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36
gst/videoscale/vs_image.c
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@ -93,12 +93,12 @@ vs_image_scale_linear_RGBA (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = dest->width * 4;
@ -191,12 +191,12 @@ vs_image_scale_linear_RGB (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = dest->width * 3;
@ -321,12 +321,12 @@ vs_image_scale_linear_YUYV (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = ROUND_UP_4 (dest->width * 2);
@ -451,12 +451,12 @@ vs_image_scale_linear_UYVY (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = ROUND_UP_4 (dest->width * 2);
@ -576,12 +576,12 @@ vs_image_scale_linear_Y (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = dest->width;
@ -707,12 +707,12 @@ vs_image_scale_linear_Y16 (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = 2 * dest->width;
@ -837,12 +837,12 @@ vs_image_scale_linear_RGB565 (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = dest->width * 2;
@ -967,12 +967,12 @@ vs_image_scale_linear_RGB555 (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = dest->width * 2;
@ -1100,12 +1100,12 @@ vs_image_scale_linear_AYUV64 (const VSImage * dest, const VSImage * src,
if (dest->height == 1)
y_increment = 0;
else
y_increment = ((src->height - 1) << 16) / (dest->height - 1);
y_increment = ((src->height - 1) << 16) / (dest->height - 1) - 1;
if (dest->width == 1)
x_increment = 0;
else
x_increment = ((src->width - 1) << 16) / (dest->width - 1);
x_increment = ((src->width - 1) << 16) / (dest->width - 1) - 1;
dest_size = dest->width * 8;