ObjC: Split out NV12 texture uploading into separate class
This CL splits out the code in RTCNV12Shader.mm for uploading byte
buffers to textures into its own class RTCNV12TextureCache. The purpose
is to prepare for allowing clients to inject their own shaders.
RTCNV12TextureCache will be used in the generic code, while the actual
shaders in RTCNV12Shader will be customizable by the client.
BUG=webrtc:7473
Review-Url: https://codereview.webrtc.org/2835203003
Cr-Original-Commit-Position: refs/heads/master@{#17902}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 15f0c6815d089640230e625a4a9faa53b7dd7f62
4 files changed
