kc3-lang/angle

2024-03-22T15:48:51

Vulkan: Add MSRTSS preferred usage for tex init The image create flag related to multisampled render to single- sampled was used when this feature flag was enabled. However, this could lead to some platforms allocating extra memory for the image, even if the image did not use this feature. In this change, a new feature is added regarding whether to prefer this flag from the start. If disabled, ANGLE will only use this bit for the texture if it is actually bound to an MSRTT framebuffer object (through FramebufferTexture2DMultisampleEXT()). * Added a new feature: preferMSRTSSFlagByDefault * If enabled, the MSRTSS is used for all image inits. * (TextureVk::initImage()) * Otherwise, it will create the image without the flag at first. * Added member to texture frontend to track if the texture has been bound to an MSRTT framebuffer. * mHasBeenBoundToMSRTTFramebuffer * During TextureVk::syncState(), if the image without the MSRTSS bit is bound to an MSRTT framebuffer, it is recreated using the MSRTSS flag. * Checked in respecifyImageStorageIfNecessary(). Bug: b/329911999 Bug: angleproject:8622 Change-Id: I5e7d43e3828ae272441d65b2be35d09b23b68f84 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5402978 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>