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changeset 2461:1ef7cdb8a5c1

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Check that the source image has a palette when doing image -> palette conversion/extraction.
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 16 Apr 2020 08:07:40 +0300
parents 2723cf62d039
children 5ec5918c6198
files tools/gfxconv.c
diffstat 1 files changed, 5 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/tools/gfxconv.c	Thu Apr 16 07:52:06 2020 +0300
+++ b/tools/gfxconv.c	Thu Apr 16 08:07:40 2020 +0300
@@ -2462,6 +2462,11 @@
                         break;
 
                     case FFMT_PALETTE:
+                        if (inImage->pal == NULL || inImage->pixfmt != DM_PIXFMT_PALETTE)
+                        {
+                            dmErrorMsg("Source image is not a paletted format or has no palette.\n");
+                            goto exit;
+                        }
                         res = dmWritePalette(optOutFilename, inImage->pal, &dmPaletteFormatList[optOutFormat]);
                         break;