Commit 6b60dfd80e3dc3fe13eb1b9bcaf8b36f30e20b45
2019-10-02T07:54:18
Vulkan: Remove image views forced to one mip level textureSize requires the view to reflect actual mip levels, so we can't artificially limit the view based on filtering mode. This CL removes those views. That unearthed a problem where the VK backend wasn't properly implementing non-mipmapped filter modes. There is a blurb in the Vulkan spec about this: There are no Vulkan filter modes that directly correspond to OpenGL minification filters of GL_LINEAR or GL_NEAREST, but they can be emulated using VK_SAMPLER_MIPMAP_MODE_NEAREST, minLod = 0, and maxLod = 0.25, and using minFilter = VK_FILTER_LINEAR or minFilter = VK_FILTER_NEAREST, respectively. So this CL also adds that emulation. Bug: angleproject:3948 Test: TextureSizeTextureArrayTest.BaseLevelVariesInTextureArray Test: dEQP-GLES3.functional.shaders.texture_functions.texturesize.* Change-Id: I81d5c3417e7d9abd0cdd058b935963706024a28f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1835937 Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Cody Northrop <cnorthrop@google.com>