Author :
Geoff Lang
Date :
2016-01-27 14:53:36
Hash :90a96efc Message :Allow BufferGL to function without being able to map buffers for read.
Reading back buffer data is required for index range validation but
without glMapBufferRange it is not possible to read back buffer data on
OpenGL ES. To work around this, keep a shadow copy of the buffer data
when this function is not available.
BUG=angleproject:1145
Change-Id: I8e9b3b174574316d3af0022bd29c7d9c96d168c3
Reviewed-on: https://chromium-review.googlesource.com/324092
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>