Commit ecbac31c4360099ab672f13b801e5b890d0fac2b
2020-10-16T10:36:06
Perf Tests: Add offscreen mode. This lets the trace perf tests run configurable number of frames within a single swap. The offscreen config is similar to how gfxbench works. It renders to a user FBO (by overriding calls to BindFramebuffer) and then composits multiple frames into the real backbuffer. This allows us to get a perf measurement with less overhead from composition and display. Adds emulation for some APIs that operate on Framebuffers like BindFramebuffer, Invalidate, DrawBuffers and ReadBuffer. Bug: angleproject:4845 Change-Id: I1044c1d52c82f1c215a68a6c46d74c52ed0f3d2a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2300207 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>