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do nothing if the color has no saturation. Patch by Joao S. Bueno. Fixes 

2004-10-30  Sven Neumann  <sven@gimp.org>

        * app/composite/gimp-composite-generic.c
        (gimp_composite_hue_any_any_any_generic): do nothing if the color
        has no saturation. Patch by Joao S. Bueno. Fixes bug #123296.
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Sven Neumann 2004-10-30 18:42:09 +00:00 committed by Sven Neumann
parent b4f038427b
commit 4f06153115
2 changed files with 44 additions and 29 deletions
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6
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@ -1,3 +1,9 @@
2004-10-30 Sven Neumann <sven@gimp.org>
* app/composite/gimp-composite-generic.c
(gimp_composite_hue_any_any_any_generic): do nothing if the color
has no saturation. Patch by Joao S. Bueno. Fixes bug #123296.
2004-10-30 Sven Neumann <sven@gimp.org>
* app/actions/image-commands.c (image_scale_cmd_callback): destroy

67
app/composite/gimp-composite-generic.c
View File

@ -377,40 +377,49 @@ gimp_composite_hue_any_any_any_generic (GimpCompositeContext * ctx)
guint r1, g1, b1;
guint r2, g2, b2;
if (bytes1 > 2) {
/* assumes inputs are only 4 byte RGBA pixels */
while (length--)
{
r1 = src1[0];
g1 = src1[1];
b1 = src1[2];
r2 = src2[0];
g2 = src2[1];
b2 = src2[2];
gimp_rgb_to_hsv_int(&r1, &g1, &b1);
gimp_rgb_to_hsv_int(&r2, &g2, &b2);
if (bytes1 > 2)
{
/* assumes inputs are only 4 byte RGBA pixels */
while (length--)
{
r1 = src1[0];
g1 = src1[1];
b1 = src1[2];
r1 = r2;
r2 = src2[0];
g2 = src2[1];
b2 = src2[2];
/* set the destination */
gimp_hsv_to_rgb_int(&r1, &g1, &b1);
gimp_rgb_to_hsv_int (&r1, &g1, &b1);
gimp_rgb_to_hsv_int (&r2, &g2, &b2);
dest[0] = r1;
dest[1] = g1;
dest[2] = b1;
/* Composition should have no effect if saturation is zero.
* otherwise, black would be painted red (see bug #123296).
*/
if (g2)
r1 = r2;
if (has_alpha1 && has_alpha2)
dest[3] = MIN(src1[3], src2[3]);
else if (has_alpha2)
dest[3] = src2[3];
/* set the destination */
gimp_hsv_to_rgb_int (&r1, &g1, &b1);
src1 += bytes1;
src2 += bytes2;
dest += bytes2;
}
} else {
ctx->D = ctx->B;
}
dest[0] = r1;
dest[1] = g1;
dest[2] = b1;
if (has_alpha1 && has_alpha2)
dest[3] = MIN (src1[3], src2[3]);
else if (has_alpha2)
dest[3] = src2[3];
src1 += bytes1;
src2 += bytes2;
dest += bytes2;
}
}
else
{
ctx->D = ctx->B;
}
}