lavu: add Vulkan hwcontext code

This commit adds the necessary code to initialize and use a Vulkan device
within the hwcontext libavutil framework.
Currently direct mapping to VAAPI and DRM frames is functional, and
transfers to CUDA and native frames are supported.

Lets hope the future Vulkan video decode extension fits well within this
framework.

1 files changed, 6 insertions, 1 deletions

diff --git a/configure b/configure
index fbb1a86511..ad3894f77c 100755
--- a/configure
+++ b/configure
@@ -316,6 +316,7 @@ External library support:
   --disable-securetransport disable Secure Transport, needed for TLS support
                            on OSX if openssl and gnutls are not used [autodetect]
   --enable-vapoursynth     enable VapourSynth demuxer [no]
+  --enable-vulkan          enable Vulkan code [no]
   --disable-xlib           disable xlib [autodetect]
   --disable-zlib           disable zlib [autodetect]
 
@@ -1854,6 +1855,7 @@ HWACCEL_LIBRARY_LIST="
     mmal
     omx
     opencl
+    vulkan
 "
 
 DOCUMENT_LIST="
@@ -3641,7 +3643,7 @@ avformat_deps="avcodec avutil"
 avformat_suggest="libm network zlib"
 avresample_deps="avutil"
 avresample_suggest="libm"
-avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
+avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi vulkan videotoolbox corefoundation corevideo coremedia bcrypt"
 postproc_deps="avutil gpl"
 postproc_suggest="libm"
 swresample_deps="avutil"
@@ -6629,6 +6631,9 @@ enabled vdpau &&
 
 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
 
+enabled vulkan &&
+    require_pkg_config vulkan "vulkan >= 1.1.97" "vulkan/vulkan.h" vkCreateInstance
+
 if enabled x86; then
     case $target_os in
         mingw32*|mingw64*|win32|win64|linux|cygwin*)