Add some loop count promises

solidpixel · solidpixel · commit f17007d52346 · 2021-04-30T23:07:00.000+01:00
diff --git a/Source/astcenc_integer_sequence.cpp b/Source/astcenc_integer_sequence.cpp
@@ -481,6 +481,8 @@ void encode_ise(
 	uint8_t* output_data,
 	int bit_offset
 ) {
+	promise(elements > 0);
+
 	int bits = btq_counts[quant_level].bits;
 	int trits = btq_counts[quant_level].trits;
 	int quints = btq_counts[quant_level].quints;
@@ -637,6 +639,8 @@ void decode_ise(
 	uint8_t* output_data,
 	int bit_offset
 ) {
+	promise(elements > 0);
+
 	// note: due to how the trit/quint-block unpacking is done in this function,
 	// we may write more temporary results than the number of outputs
 	// The maximum actual number of results is 64 bit, but we keep 4 additional elements
diff --git a/Source/astcenc_pick_best_endpoint_format.cpp b/Source/astcenc_pick_best_endpoint_format.cpp
@@ -790,6 +790,9 @@ void determine_optimal_set_of_endpoint_formats_to_use(
 ) {
 	int partition_count = pt->partition_count;
 
+	promise(partition_count > 0);
+	promise(bsd->block_mode_count > 0);
+
 	int encode_hdr_rgb = blk->rgb_lns[0];
 	int encode_hdr_alpha = blk->alpha_lns[0];
 
