On 32bit platforms, even if it contains a uint64_t the handle wrapper
will align to 4 bytes because the assembly load operations can't take
advantage of 64bit aligned loads.
Fix this by forcing the alignment to the alignment of what would be the
native Vulkan handle type.
Also use macros with defined()
Change-Id: I0de9b4a77e648c416b04311b854c956762248868
This extends our Vulkan handle wrapper to have conversions from uint64_t
as well as the native Vulkan types:
- The dawn_wsi interface uses the uint64_t version.
- The backend interface uses the native Vulkan version
windows.h adds macros such as `#define GetMessage GetMessageA` which
cause conflicts in naming when for example a class definition is before
windows.h and a use is after windows.h
Add a header that can be used both to include windows.h and remove
defines, and to only remove defines (when windows.h is included by)
external dependencies.
This file changes the non-dispatchable Vulkan handle types. We want to
use some of these handles in utils/VulkanSwapChain.cpp so it needs to
have access to it. The file could include
backend/vulkan/vulkan_platform.h but it seems a bit cleaner to move the
header in common/ instead with a warning if the Vulkan backend isn't
enabled.
Corentin Wallez