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ui/gtk-egl: Fix build failure when libgbm is not available

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Since commit 4872a023a5 ("ui/gtk-egl: guest fb texture needs
to be regenerated when reinitializing egl") we get on Ubuntu
18.04.4 LTS and Debian Buster (oldstable):

  $ ../configure --enable-virglrenderer
  [...]
  ui/gtk-egl.c: In function 'gd_egl_refresh':
  ui/gtk-egl.c:159:13: error: implicit declaration of function 'egl_dmabuf_release_texture' [-Werror=implicit-function-declaration]
    159 |             egl_dmabuf_release_texture(vc->gfx.guest_fb.dmabuf);
        |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
  ui/gtk-egl.c:159:13: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
  ui/gtk-egl.c:159:13: error: nested extern declaration of 'egl_dmabuf_release_texture' [-Werror=nested-externs]

Fix by restricting the egl_dmabuf_release_texture() call to the
availability of the generic buffer management library (libgbm).

Fixes: 4872a023a5
Cc: Dongwon Kim <dongwon.kim@intel.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Reported-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20211108083129.1262040-1-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2021-11-08 09:31:29 +01:00 committed by Paolo Bonzini
parent de38c0cc79
commit 8b4ed0daba
1 changed files with 2 additions and 0 deletions
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2
ui/gtk-egl.c
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@ -155,10 +155,12 @@ void gd_egl_refresh(DisplayChangeListener *dcl)
surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
}
#ifdef CONFIG_GBM
if (vc->gfx.guest_fb.dmabuf) {
egl_dmabuf_release_texture(vc->gfx.guest_fb.dmabuf);
gd_egl_scanout_dmabuf(dcl, vc->gfx.guest_fb.dmabuf);
}
#endif
}
graphic_hw_update(dcl->con);