From: Connor Abbott <cwabbott0@gmail.com>
Date: Mon, 20 Apr 2020 11:41:42 +0000 (+0200)
Subject: tu: Fix the advertised maxFragmentInputComponents
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ae169f38cead48a669d39fcd4ab7747da56e19c2;p=mesa.git

tu: Fix the advertised maxFragmentInputComponents

This appears to be limited by VPC_CNTL_0::NUMNONPOSVAR, which is an
8-bit bitfield with no possibility for expansion. Also, in practice
we'll be limited by the vertex shader output maximum, which includes
gl_Position, of 128, so that users won't be able to use more than 124
components anyways. Lower it to match the GL blob.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4641>
---

diff --git a/src/freedreno/vulkan/tu_device.c b/src/freedreno/vulkan/tu_device.c
index e1b495b4440..006f7d4e73b 100644
--- a/src/freedreno/vulkan/tu_device.c
+++ b/src/freedreno/vulkan/tu_device.c
@@ -788,7 +788,7 @@ tu_GetPhysicalDeviceProperties(VkPhysicalDevice physicalDevice,
       .maxGeometryOutputComponents = 128,
       .maxGeometryOutputVertices = 256,
       .maxGeometryTotalOutputComponents = 1024,
-      .maxFragmentInputComponents = 128,
+      .maxFragmentInputComponents = 124,
       .maxFragmentOutputAttachments = 8,
       .maxFragmentDualSrcAttachments = 1,
       .maxFragmentCombinedOutputResources = 8,