commit ead9392000a438fe89f8b77b04ec32e6ce77a3f0
author Wan-Teh Chang <wtc@google.com> Fri Jul 26 10:30:00 2024 -0700
committer Wan-Teh Chang <wtc@google.com> Mon Jul 29 09:32:19 2024 -0700
tree 127383f6f117ff5618ac8c009465951b7d1c3eed
parent 227293d51f5b9de39975f9add2c5fe01c5835448

read.c: Declare alphaCategory as avifItemCategory

This way *category and alphaCategory have the same type, and code that
uses them looks consistent.

src/read.c

diff --git a/src/read.c b/src/read.c
index cbc8c0b..f8d315c 100644
--- a/src/read.c
+++ b/src/read.c
@@ -5377,7 +5377,7 @@
                               AVIF_RESULT_NOT_IMPLEMENTED);
                 avifItemCategory * category = &data->sampleTransformInputImageItems[data->sampleTransformNumInputImageItems];
                 avifBool foundItem = AVIF_FALSE;
-                uint32_t alphaCategory = AVIF_ITEM_CATEGORY_COUNT;
+                avifItemCategory alphaCategory = AVIF_ITEM_CATEGORY_COUNT;
                 for (int c = AVIF_ITEM_COLOR; c < AVIF_ITEM_CATEGORY_COUNT; ++c) {
                     if (mainItems[c] && inputImageItem->id == mainItems[c]->id) {
                         *category = c;
@@ -5391,7 +5391,7 @@
                     AVIF_CHECKERR(numExtraInputImageItems < AVIF_SAMPLE_TRANSFORM_MAX_NUM_EXTRA_INPUT_IMAGE_ITEMS,
                                   AVIF_RESULT_NOT_IMPLEMENTED);
                     *category = (avifItemCategory)(AVIF_ITEM_SAMPLE_TRANSFORM_INPUT_0_COLOR + numExtraInputImageItems);
-                    alphaCategory = AVIF_ITEM_SAMPLE_TRANSFORM_INPUT_0_ALPHA + numExtraInputImageItems;
+                    alphaCategory = (avifItemCategory)(AVIF_ITEM_SAMPLE_TRANSFORM_INPUT_0_ALPHA + numExtraInputImageItems);
                     mainItems[*category] = inputImageItem;
                     ++numExtraInputImageItems;