Brian Ho 98ba76af00 Define an interface to import dma-bufs ...

This CL adds an API to import a dma-buf into Dawn as a WGPUTexture.

We also add a descriptor type enum to the base
ExternalImageDescriptor struct. This is because all memory import
code (e.g. MemoryService, Texture::CreateFromExternal) takes the
a base ExternalImageDescriptor as a parameter. The dma-buf external
memory and image services, however, will need to downcast to
ExternalImageDescriptorDmaBuf to access import parameters like
stride. Explicitly adding a type enum will let us more safely verify
the type before downcasting.

BUG=chromium:996470

Change-Id: I2d9883a15e9059a91f2c7bdb7a96d74373e18c56
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13782
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Brian Ho <hob@chromium.org>

2019-11-20 23:57:03 +00:00

..

dawn

Make dawn_native public headers and dawn_wsi use webgpu.h

2019-10-24 23:55:37 +00:00

dawn_native

Define an interface to import dma-bufs

2019-11-20 23:57:03 +00:00

dawn_platform

Use enums for trace event categories

2019-10-28 23:15:40 +00:00

dawn_wire

Make dawn_wire use the webgpu.h header

2019-10-24 22:27:27 +00:00