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fix(wayland/dmabuf): more robust format handling

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This commit is contained in:
Nova
2025-07-15 02:26:22 -07:00
parent d9dded54ca
commit 81a741ad36
2 changed files with 15 additions and 21 deletions
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15
src/wayland/dmabuf/feedback.rs
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@@ -1,6 +1,5 @@
use super::Dmabuf;
use crate::wayland::vulkano_data::VULKANO_CONTEXT;
use drm_fourcc::DrmFourcc;
use memfd::MemfdOptions;
use std::{
io::Write,
@@ -23,8 +22,7 @@ impl DmabufFeedback {
pub async fn send_params(&self, client: &mut Client, sender_id: ObjectId) -> Result<()> {
let num_formats = self.0.formats.len();
// Send format table first
self.send_format_table(client, sender_id, &self.0.formats)
.await?;
self.send_format_table(client, sender_id).await?;
// Get the device information from Vulkan properties
let props = VULKANO_CONTEXT.get().unwrap().phys_dev.properties();
@@ -62,17 +60,12 @@ impl DmabufFeedback {
Ok(())
}
pub async fn send_format_table(
&self,
client: &mut Client,
sender_id: ObjectId,
formats: &[(DrmFourcc, u64)],
) -> Result<()> {
pub async fn send_format_table(&self, client: &mut Client, sender_id: ObjectId) -> Result<()> {
// Format + modifier pair (16 bytes):
// - format: u32
// - padding: 4 bytes
// - modifier: u64
let size = formats.len() as u32 * 16u32;
let size = self.0.formats.len() as u32 * 16u32;
// Create a temporary file for the format table
let mfd = MemfdOptions::default()
.create("stardustxr-format-table")
@@ -80,7 +73,7 @@ impl DmabufFeedback {
mfd.as_file().set_len(size as u64)?;
for (format, modifier) in formats {
for (format, modifier) in self.0.formats.iter() {
let format = format.clone() as u32;
// Write the format+modifier pair
mfd.as_file().write_all(&format.to_ne_bytes())?;