tree 0e9750ee6801204ffda720d3db44b5c46ba0a3e1
parent d4ce736d181f2b35d46dea581060ee526759c367
author Brian Ho <hob@chromium.org> 1565732744 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1565732744 +0000

Remove GLFW dependency for non-GL tests

As part of enabling WebGPU on Chrome OS, we would like to run the Dawn
unit and e2e tests as part of the Chrome OS test suite. This CL removes
the GLFW dependency because Chrome OS does not support GLFW.

The GLFWwindow is only used to create swap chains for the various
backends, but these swap chains are not actually used in the tests
(the e2e tests render to textures instead). The swap chains are only
referenced as part of an unused debugging function:
SwapBuffersForCapture which we can safely remove as per my discussions
with kainino@ and enga@.

We still need GLFW for OpenGL, so we conditionally include it on
platforms that enable the OpenGL backend (which Chrome OS is not).

Note: enga@ suggested to create a VulkanWindowlessBinding that has an
empty GetSwapChainImplementation, but after exploring the option, it
seems like a bit too many ifdefs. In the end, I think it's cleaner to
just remove the *Binding classes entirely.

BUG=chromium:993457
TEST=tests compile and pass for all values of dawn_enable_opengl

Change-Id: I067b12a23f2c236f5506252cd7727b847e79a667
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/10080
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Brian Ho <hob@chromium.org>