Commit b64d380ec515afae95ec8f6eb003c328dea10448
2025-04-15T00:54:22
Vulkan: Ghost texture's image backing if overwritten If the texture's image is in use by the GPU but is overwritten completely, this change releases the old image and creates a fresh one. If the texture was used in a render pass, this avoids breaking the render pass. Otherwise, it allows the new image to be initialized with VK_EXT_host_image_copy functionality. In the very least, an unnecessary barrier is avoided. As a targeted optimization, this functionality is limited to non-array 2D color textures which are known to benefit from this ghosting in applications. Other texture types can be easily added, but need lots of tests to be added. Bug: angleproject:42265356 Change-Id: I18a7587599e36f9f70109264ddc1003b24b8b2df Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6456345 Reviewed-by: Yuxin Hu <yuxinhu@google.com> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>