Re: [Qemu-devel] [PATCH 1/8] configure: add dma-buf support detection.

[Marc-André Lureau]

Hi

On Thu, Feb 18, 2016 at 10:26 AM, Gerd Hoffmann <address@hidden> wrote:
> Set CONFIG_OPENGL_DMABUF in case both mesa and libepoxy are
> new enough to have support for dma-buf import/export.
>
> Signed-off-by: Gerd Hoffmann <address@hidden>
> ---
>  configure | 20 +++++++++++++++++++-
>  1 file changed, 19 insertions(+), 1 deletion(-)
>
> diff --git a/configure b/configure
> index 0aa249b..0c0472a 100755
> --- a/configure
> +++ b/configure
> @@ -279,6 +279,7 @@ smartcard=""
>  libusb=""
>  usb_redir=""
>  opengl=""
> +opengl_dmabuf="no"
>  zlib="yes"
>  lzo=""
>  snappy=""
> @@ -3274,7 +3275,7 @@ libs_softmmu="$libs_softmmu $fdt_libs"
>  # opengl probe (for sdl2, gtk, milkymist-tmu2)
>
>  if test "$opengl" != "no" ; then
> -  opengl_pkgs="epoxy"
> +  opengl_pkgs="epoxy libdrm gbm"
>    if $pkg_config $opengl_pkgs x11; then
>      opengl_cflags="$($pkg_config --cflags $opengl_pkgs) $x11_cflags"
>      opengl_libs="$($pkg_config --libs $opengl_pkgs) $x11_libs"
> @@ -3292,6 +3293,18 @@ if test "$opengl" != "no" ; then
>    fi
>  fi
>
> +if test "$opengl" = "yes"; then
> +  cat > $TMPC << EOF
> +#include <epoxy/egl.h>
> +#ifndef EGL_MESA_image_dma_buf_export
> +# error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
> +#endif
> +int main(void) { return 0; }
> +EOF
> +  if compile_prog "" "" ; then
> +    opengl_dmabuf=yes
> +  fi
> +fi
>
>  ##########################################
>  # archipelago probe
> @@ -4752,6 +4765,7 @@ echo "smartcard support $smartcard"
>  echo "libusb            $libusb"
>  echo "usb net redir     $usb_redir"
>  echo "OpenGL support    $opengl"
> +echo "OpenGL dmabufs    $opengl_dmabuf"
>  echo "libiscsi support  $libiscsi"
>  echo "libnfs support    $libnfs"
>  echo "build guest agent $guest_agent"
> @@ -5050,6 +5064,7 @@ if test "$gtk" = "yes" ; then
>    echo "CONFIG_GTK=y" >> $config_host_mak
>    echo "CONFIG_GTKABI=$gtkabi" >> $config_host_mak
>    echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
> +  echo "GTK_LIBS=$gtk_libs" >> $config_host_mak

This could be seperated

>    if test "$gtk_gl" = "yes" ; then
>      echo "CONFIG_GTK_GL=y" >> $config_host_mak
>    fi
> @@ -5158,6 +5173,9 @@ if test "$opengl" = "yes" ; then
>    echo "CONFIG_OPENGL=y" >> $config_host_mak
>    echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
>    echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
> +  if test "$opengl_dmabuf" = "yes" ; then
> +    echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
> +  fi
>  fi
>
>  if test "$lzo" = "yes" ; then
> --
> 1.8.3.1
>

Reviewed-by: Marc-André Lureau <address@hidden>





-- 
Marc-André Lureau