Fix some LGTM errors of "Multiplication result converted to larger type"

3 files changed, 8 insertions, 7 deletions

diff --git a/servers/audio/audio_driver_dummy.cpp b/servers/audio/audio_driver_dummy.cpp
index a28dcb1015..47799dce96 100644
--- a/servers/audio/audio_driver_dummy.cpp
+++ b/servers/audio/audio_driver_dummy.cpp
@@ -46,7 +46,7 @@ Error AudioDriverDummy::init() {
 	int latency = GLOBAL_GET("audio/driver/output_latency");
 	buffer_frames = closest_power_of_2(latency * mix_rate / 1000);
 
-	samples_in = memnew_arr(int32_t, buffer_frames * channels);
+	samples_in = memnew_arr(int32_t, (size_t)buffer_frames * channels);
 
 	thread.start(AudioDriverDummy::thread_func, this);
 
diff --git a/servers/audio/audio_rb_resampler.cpp b/servers/audio/audio_rb_resampler.cpp
index 3c8a1469cd..d9c442facf 100644
--- a/servers/audio/audio_rb_resampler.cpp
+++ b/servers/audio/audio_rb_resampler.cpp
@@ -176,8 +176,9 @@ Error AudioRBResampler::setup(int p_channels, int p_src_mix_rate, int p_target_m
 		rb_bits = desired_rb_bits;
 		rb_len = (1 << rb_bits);
 		rb_mask = rb_len - 1;
-		rb = memnew_arr(float, rb_len *p_channels);
-		read_buf = memnew_arr(float, rb_len *p_channels);
+		const size_t array_size = rb_len * (size_t)p_channels;
+		rb = memnew_arr(float, array_size);
+		read_buf = memnew_arr(float, array_size);
 	}
 
 	src_mix_rate = p_src_mix_rate;
diff --git a/servers/rendering/renderer_rd/renderer_storage_rd.cpp b/servers/rendering/renderer_rd/renderer_storage_rd.cpp
index 45d3b3f09f..2ece60e107 100644
--- a/servers/rendering/renderer_rd/renderer_storage_rd.cpp
+++ b/servers/rendering/renderer_rd/renderer_storage_rd.cpp
@@ -3959,7 +3959,7 @@ void RendererStorageRD::_multimesh_make_local(MultiMesh *multimesh) const {
 				memcpy(w, r, buffer.size());
 			}
 		} else {
-			memset(w, 0, multimesh->instances * multimesh->stride_cache * sizeof(float));
+			memset(w, 0, (size_t)multimesh->instances * multimesh->stride_cache * sizeof(float));
 		}
 	}
 	uint32_t data_cache_dirty_region_count = (multimesh->instances - 1) / MULTIMESH_DIRTY_REGION_SIZE + 1;
@@ -4372,13 +4372,13 @@ void RendererStorageRD::_update_dirty_multimeshes() {
 
 				if (multimesh->data_cache_used_dirty_regions > 32 || multimesh->data_cache_used_dirty_regions > visible_region_count / 2) {
 					//if there too many dirty regions, or represent the majority of regions, just copy all, else transfer cost piles up too much
-					RD::get_singleton()->buffer_update(multimesh->buffer, 0, MIN(visible_region_count * region_size, multimesh->instances * multimesh->stride_cache * sizeof(float)), data);
+					RD::get_singleton()->buffer_update(multimesh->buffer, 0, MIN(visible_region_count * region_size, multimesh->instances * (uint32_t)multimesh->stride_cache * (uint32_t)sizeof(float)), data);
 				} else {
 					//not that many regions? update them all
 					for (uint32_t i = 0; i < visible_region_count; i++) {
 						if (multimesh->data_cache_dirty_regions[i]) {
-							uint64_t offset = i * region_size;
-							uint64_t size = multimesh->stride_cache * multimesh->instances * sizeof(float);
+							uint32_t offset = i * region_size;
+							uint32_t size = multimesh->stride_cache * (uint32_t)multimesh->instances * (uint32_t)sizeof(float);
 							RD::get_singleton()->buffer_update(multimesh->buffer, offset, MIN(region_size, size - offset), &data[i * region_size]);
 						}
 					}