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plug-ins: fix #6871 indexed tga file cannot be saved

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Exporting an image to TGA fails with a crash when it's an indexed image
with alpha channel. We were not taking into account that even though
the output is 1 byte per pixel, the input should allocate memory for
2 bytes per pixel (1 color index and 1 alpha channel).

(cherry picked from commit 059599fc78)
This commit is contained in:
Jacob Boerema
2022-01-18 14:57:35 -05:00
parent f72ecd07b5
commit 618280b07b
1 changed files with 4 additions and 1 deletions
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5
plug-ins/common/file-tga.c
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@ -1341,7 +1341,10 @@ save_image (const gchar *filename,
fputc (0, fp); fputc (0, fp);
} }
pixels = g_new (guchar, width * out_bpp); if (dtype == GIMP_INDEXEDA_IMAGE)
pixels = g_new (guchar, width * 2);
else
pixels = g_new (guchar, width * out_bpp);
data = g_new (guchar, width * out_bpp); data = g_new (guchar, width * out_bpp);
for (row = 0; row < height; ++row) for (row = 0; row < height; ++row)