works

1 files changed, 11 insertions, 3 deletions

diff --git a/vgcodec/src/helper.rs b/vgcodec/src/helper.rs
index 3aca81d..1d029b8 100644
--- a/vgcodec/src/helper.rs
+++ b/vgcodec/src/helper.rs
@@ -1,7 +1,15 @@
-use wgpu::{Queue, Texture, Extent3d};
-
+use log::info;
+use wgpu::{Extent3d, Queue, Texture};
 
 pub fn write_texture(queue: &Queue, target: &Texture, data: &[u8], size: Extent3d) {
+    info!("uploading texture {size:?} ({} bytes)", data.len());
+
+    let bytes_per_pixel = std::mem::size_of::<u32>() as u32;
+    let unpadded_bytes_per_row = size.width * bytes_per_pixel;
+    let align = wgpu::COPY_BYTES_PER_ROW_ALIGNMENT;
+    let padded_bytes_per_row_padding = (align - unpadded_bytes_per_row % align) % align;
+    let padded_bytes_per_row = unpadded_bytes_per_row + padded_bytes_per_row_padding;
+
     queue.write_texture(
         wgpu::ImageCopyTexture {
             texture: &target,
@@ -12,7 +20,7 @@ pub fn write_texture(queue: &Queue, target: &Texture, data: &[u8], size: Extent3
         &data,
         wgpu::ImageDataLayout {
             offset: 0,
-            bytes_per_row: Some(std::num::NonZeroU32::try_from((size.width * 4) as u32).unwrap()),
+            bytes_per_row: Some(std::num::NonZeroU32::try_from(padded_bytes_per_row).unwrap()),
             rows_per_image: None,
         },
         size,