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Fix bytes_per_row used in write_texture

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This commit is contained in:
Dzmitry Malyshau
2020-06-02 11:57:55 -04:00
committed by Dzmitry Malyshau
parent ae17ea7625
commit 1acd1901de
1 changed files with 9 additions and 1 deletions
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10
wgpu-core/src/device/queue.rs
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@@ -239,10 +239,11 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
.bits as u32
/ BITS_PER_BYTE;
let stage_bytes_per_row = get_lowest_common_denom(
let bytes_per_row_alignment = get_lowest_common_denom(
device.hal_limits.optimal_buffer_copy_pitch_alignment as u32,
bytes_per_texel,
);
let stage_bytes_per_row = align_to(bytes_per_texel * size.width, bytes_per_row_alignment);
let stage_size = stage_bytes_per_row as u64
* ((size.depth - 1) * data_layout.rows_per_image + size.height) as u64;
let mut stage = device.prepare_stage(stage_size);
@@ -532,6 +533,13 @@ fn get_greatest_common_divisor(mut a: u32, mut b: u32) -> u32 {
}
}
fn align_to(value: u32, alignment: u32) -> u32 {
match value % alignment {
0 => value,
other => value - other + alignment,
}
}
#[test]
fn test_lcd() {
assert_eq!(get_lowest_common_denom(2, 2), 2);