kc3-lang/angle

2020-01-29T10:12:31

D3D11: Copy from Image objects instead of TextureStorage when possible. glCopyTextureCHROMIUM calls in D3D11 would call getNativeTexture on the copy source which would allocate a TextureStorage11 if one did not already exist. This caused full mip-chain allocations in some cases when we could have just copied directly from the staging Image11. When navigating to wikipedia.org: Peak memory | Stable memory Passthrough (before): 142 mb | 119 mb Passthrough (after): 138 mb | 106 mb Validating: 139 mb | 110 mb No mip-mapped textures were allocated after this change. BUG=chromium:1030835 Change-Id: Icd14afaec445299423cfea293cba501d774f6ade Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2028147 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>