gfx-rs/wgpu

Test Buffer to Buffer and Buffer to/from Image Copies with Problematic Usages

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#3,161 建立於 2022年11月1日

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 (3 留言) (0 反應) (0 負責人)Rust (9,290 star) (703 fork)batch import
area: testsbackend: glesgood first issuehelp requiredtype: enhancement

描述

WebGL has numerous issues with Index buffers being funky to use correctly, which necessitates various workarounds and nuance in the code dealing with copies. This is exemplified by #3157 but there is additional nuance.

https://github.com/gfx-rs/wgpu/blob/master/wgpu-hal/src/gles/queue.rs#L268-338 is the link to the buffer-to-buffer implementation.

Getting this working is also predicated on having our tests run in the browser.

貢獻者指南

技術棧
rust
領域
backendtesting
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
over 1 week
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
needs investigation
前置要求
RustWebGLwgpu internals
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
20
研究方向
Investigate the buffer copy issues in wgpu's GLES backend, focusing on the code at wgpu hal/src/gles/queue.rs lines 268-338. Review linked issue #3157 for context on WebGL index buffer workarounds. The solution requires fixing the buffer to buffer and buffer to/from image copies to handle problematic usages, which may involve implementing workarounds similar to those in #3157. Additionally, the tests must be runnable in a browser environment, so understanding the test infrastructure is necessary.