gfxstream + rutabaga: meson support

- Add meson detection of rutabaga_gfx
- Build virtio-gpu-rutabaga.c + associated vga/pci files when
  present

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>

hw/display/meson.build

@@ -80,6 +80,13 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
                          if_true: [files('virtio-gpu-gl.c', 'virtio-gpu-virgl.c'), pixman, virgl])
     hw_display_modules += {'virtio-gpu-gl': virtio_gpu_gl_ss}
   endif
+
+  if rutabaga.found()
+    virtio_gpu_rutabaga_ss = ss.source_set()
+    virtio_gpu_rutabaga_ss.add(when: ['CONFIG_VIRTIO_GPU', rutabaga],
+                               if_true: [files('virtio-gpu-rutabaga.c'), pixman])
+    hw_display_modules += {'virtio-gpu-rutabaga': virtio_gpu_rutabaga_ss}
+  endif
 endif
 
 if config_all_devices.has_key('CONFIG_VIRTIO_PCI')
@@ -96,6 +103,12 @@ if config_all_devices.has_key('CONFIG_VIRTIO_PCI')
                              if_true: [files('virtio-gpu-pci-gl.c'), pixman])
     hw_display_modules += {'virtio-gpu-pci-gl': virtio_gpu_pci_gl_ss}
   endif
+  if rutabaga.found()
+    virtio_gpu_pci_rutabaga_ss = ss.source_set()
+    virtio_gpu_pci_rutabaga_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRTIO_PCI', rutabaga],
+                                   if_true: [files('virtio-gpu-pci-rutabaga.c'), pixman])
+    hw_display_modules += {'virtio-gpu-pci-rutabaga': virtio_gpu_pci_rutabaga_ss}
+  endif
 endif
 
 if config_all_devices.has_key('CONFIG_VIRTIO_VGA')
@@ -114,6 +127,15 @@ if config_all_devices.has_key('CONFIG_VIRTIO_VGA')
   virtio_vga_gl_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi-vga.c'),
                                             if_false: files('acpi-vga-stub.c'))
   hw_display_modules += {'virtio-vga-gl': virtio_vga_gl_ss}
+
+  if rutabaga.found()
+    virtio_vga_rutabaga_ss = ss.source_set()
+    virtio_vga_rutabaga_ss.add(when: ['CONFIG_VIRTIO_VGA', rutabaga],
+                               if_true: [files('virtio-vga-rutabaga.c'), pixman])
+    virtio_vga_rutabaga_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi-vga.c'),
+                                                    if_false: files('acpi-vga-stub.c'))
+    hw_display_modules += {'virtio-vga-rutabaga': virtio_vga_rutabaga_ss}
+  endif
 endif
 
 system_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_lcdc.c'))

meson.build

@@ -1046,6 +1046,12 @@ if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
                                        dependencies: virgl))
   endif
 endif
+rutabaga = not_found
+if not get_option('rutabaga_gfx').auto() or have_system or have_vhost_user_gpu
+  rutabaga = dependency('rutabaga_gfx_ffi',
+                         method: 'pkg-config',
+                         required: get_option('rutabaga_gfx'))
+endif
 blkio = not_found
 if not get_option('blkio').auto() or have_block
   blkio = dependency('blkio',
@@ -4277,6 +4283,7 @@ summary_info += {'libtasn1':          tasn1}
 summary_info += {'PAM':               pam}
 summary_info += {'iconv support':     iconv}
 summary_info += {'virgl support':     virgl}
+summary_info += {'rutabaga support':  rutabaga}
 summary_info += {'blkio support':     blkio}
 summary_info += {'curl support':      curl}
 summary_info += {'Multipath support': mpathpersist}

meson_options.txt

@@ -230,6 +230,8 @@ option('vmnet', type : 'feature', value : 'auto',
        description: 'vmnet.framework network backend support')
 option('virglrenderer', type : 'feature', value : 'auto',
        description: 'virgl rendering support')
+option('rutabaga_gfx', type : 'feature', value : 'auto',
+       description: 'rutabaga_gfx support')
 option('png', type : 'feature', value : 'auto',
        description: 'PNG support with libpng')
 option('vnc', type : 'feature', value : 'auto',

scripts/meson-buildoptions.sh

@@ -156,6 +156,7 @@ meson_options_help() {
   printf "%s\n" '  rbd             Ceph block device driver'
   printf "%s\n" '  rdma            Enable RDMA-based migration'
   printf "%s\n" '  replication     replication support'
+  printf "%s\n" '  rutabaga-gfx    rutabaga_gfx support'
   printf "%s\n" '  sdl             SDL user interface'
   printf "%s\n" '  sdl-image       SDL Image support for icons'
   printf "%s\n" '  seccomp         seccomp support'
@@ -425,6 +426,8 @@ _meson_option_parse() {
     --disable-replication) printf "%s" -Dreplication=disabled ;;
     --enable-rng-none) printf "%s" -Drng_none=true ;;
     --disable-rng-none) printf "%s" -Drng_none=false ;;
+    --enable-rutabaga-gfx) printf "%s" -Drutabaga_gfx=enabled ;;
+    --disable-rutabaga-gfx) printf "%s" -Drutabaga_gfx=disabled ;;
     --enable-safe-stack) printf "%s" -Dsafe_stack=true ;;
     --disable-safe-stack) printf "%s" -Dsafe_stack=false ;;
     --enable-sanitizers) printf "%s" -Dsanitizers=true ;;