Commit 18ddd131c53959245352805c5017532eb873864c
2021-06-07T14:59:43
Vulkan: SPIR-V Gen: Support mediump/lowp The mediump and lowp precisions translate to a RelaxedPrecision decoration in SPIR-V. This change implements this decoration and enables SPIR-V generation when emulating Bresenham lines. Prior to this change, Bresenham line emulation resulted in a validation error due to the vertex shader output being without RelaxedPrecision but the fragment shader input (translated by glslang) with it. The function that produces a new id is given a list of decorations to apply, which itself is automatically deriven from the TType where applicable, to minimize the risk of any id missing this decoration. Bug: angleproject:4889 Change-Id: I30cc5a278634c5d83d63cd65b057336f9f573baa Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2946113 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com>