Hash :
b97aab3f
Author :
Date :
2022-03-09T17:36:24
Vulkan: resync mCurrentElementArrayBuffer when out of lineloop When glDrawElements is called with GL_UNSIGNED_BYTE type or LineLoop mode, we will internally allocate an element buffer and copy data to it. But when we switch out of that mode, we must re-sync mCurrentElementArrayBuffer to what it should be based on VertexArray buffer binding. This CL fix the bug that we were previously not updating it and end up using the wrong element buffer. Also added three tests: DrawWithSameBufferButDifferentTypes: that uses GL_UNSIGNED_BYTE data and GL_UNSIGNED_SHORT data in the same buffer and switch between these two data types without incurring buffer change. DrawWithSameBufferButDifferentModes: draw line mode followed by triangle without the same element buffer. DrawArraysLineLoopFollowedByDrawElementsTriangle: draw line mode with glDrawArrays and then followed by DrawElements. Bug: chromium:1299261 Change-Id: I5c471117d300e9fac9127a9d8fa66d48ac312f03 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3513553 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com> Commit-Queue: Charlie Lao <cclao@google.com>