From e510a287deb25f2542a68bf21382f2557740d70c Mon Sep 17 00:00:00 2001
From: jsmall-nvidia <jsmall@nvidia.com>
Date: Thu, 6 May 2021 12:45:00 -0400
Subject: Half texture support (#1836)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Split out StringEscapeUtil.

* Added StringEscapeUtil.

* Fix typo in unix quoting type.

* Small comment improvements.

* Try to fix linux linking issue.

* Fix typo.

* Attempt to fix linux link issue.

* Update VS proj even though nothing really changed.

* Fix another typo issue.

* Fix for windows issue.
Fixed bug.

* Make separate Utils for escaping.

* Fix typo.

* Split out into StringEscapeHandler.

* Windows shell does handle removing quotes (so remove code to remove them).

* Handle unescaping if not initiating using the shell.

* Slight improvement around shell like decoding.

* Simplify command extraction.

* Add shared-library category type.

* Fix bug in command extraction.

* Typo in transcendental category.

* Enable unit-test on in smoke test category.

* Make parsing failing output as a failing test.

* Fixes for transcendental tests. Disable tests that do not work.

* Changed category parsing.

* Removed the TestResult parameter from _gatherTestsForFile.
Made testsList only output.

* Remove testing if all tests were disabled.

* Make args of CommandLine always unescaped.

* Add category.

* Don't need escaping on unix/linux.

* Remove some no longer used functions.

* Add requireSMVersion to CUDAExtensionTracker.

* half-calc.slang now works for CUDA.

* bit-cast-16-bit works on CUDA.

* WIP handling of CUDA vector<half> types.

* Half swizzle CUDA.

* Half vector test.

* Fix swizzle half bug.

* Fix compilation issue with narrowing to Index.

* Add unary ops.

* Add some vector scalar maths ops.

* Add half vector conversions for CUDA.

* Fix erroneous comment.

* Support for half comparisons.

* First pass test for half compare.

* Fix bug in CUDA specialized emit control.
Updated tests to have pre and post inc/dec.

* Removed unneeded parts of the cuda prelude.

* Half structured buffer works on CUDA.

* Added name lookup for Gfx::Format

* Support half texture type in test system.

* Test for half reading on CUDA.

* Add half formats to Vk and D3D utils.

* Fix getAt for CUDA - where there might not be a .x member in a vector.
---
 tools/gfx/cuda/render-cuda.cpp | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'tools/gfx/cuda/render-cuda.cpp')

diff --git a/tools/gfx/cuda/render-cuda.cpp b/tools/gfx/cuda/render-cuda.cpp
index a6400789f..b919ac6b0 100644
--- a/tools/gfx/cuda/render-cuda.cpp
+++ b/tools/gfx/cuda/render-cuda.cpp
@@ -1432,14 +1432,28 @@ public:
 
             switch (desc.format)
             {
+            case Format::RGBA_Float32:
+            case Format::RGB_Float32:
+            case Format::RG_Float32:
             case Format::R_Float32:
             case Format::D_Float32:
                 {
+                    const FormatInfo info = gfxGetFormatInfo(desc.format);
                     format = CU_AD_FORMAT_FLOAT;
-                    numChannels = 1;
+                    numChannels = info.channelCount;
                     elementSize = sizeof(float);
                     break;
                 }
+            case Format::RGBA_Float16:
+            case Format::RG_Float16:
+            case Format::R_Float16:
+                {
+                    const FormatInfo info = gfxGetFormatInfo(desc.format);
+                    format = CU_AD_FORMAT_HALF;
+                    numChannels = info.channelCount;
+                    elementSize = sizeof(uint16_t);
+                    break;
+                }
             case Format::RGBA_Unorm_UInt8:
                 {
                     format = CU_AD_FORMAT_UNSIGNED_INT8;
-- 
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