On Fri, 20 Mar 2015 15:26:52 +0100
Jonny Lamb <[email protected]> wrote:

> Reviewed-by: Derek Foreman <[email protected]>
> Reviewed-by: Bryce Harrington <[email protected]>
> ---
>  src/compositor-drm.c     |  3 ++-
>  src/compositor-fbdev.c   |  2 +-
>  src/compositor-wayland.c |  1 +
>  src/compositor-x11.c     |  5 +++++
>  src/gl-renderer.c        | 39 ++++++++++++++++++++++++++++++++++-----
>  src/gl-renderer.h        |  3 ++-
>  6 files changed, 45 insertions(+), 8 deletions(-)
> 

> diff --git a/src/gl-renderer.c b/src/gl-renderer.c
> index e598d1e..d4e8f1e 100644
> --- a/src/gl-renderer.c
> +++ b/src/gl-renderer.c
> @@ -140,6 +140,10 @@ struct gl_renderer {
>       PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC swap_buffers_with_damage;
>  #endif
>  
> +#ifdef EGL_EXT_platform_base
> +     PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC create_platform_window;
> +#endif
> +
>       int has_unpack_subimage;
>  
>       PFNEGLBINDWAYLANDDISPLAYWL bind_display;
> @@ -1974,7 +1978,8 @@ gl_renderer_setup(struct weston_compositor *ec, 
> EGLSurface egl_surface);
>  
>  static int
>  gl_renderer_output_create(struct weston_output *output,
> -                       EGLNativeWindowType window,
> +                       EGLNativeWindowType window_for_legacy,
> +                       void *window_for_platform,
>                         const EGLint *attribs,
>                         const EGLint *visual_id)
>  {
> @@ -2001,10 +2006,19 @@ gl_renderer_output_create(struct weston_output 
> *output,
>       if (go == NULL)
>               return -1;
>  
> -     go->egl_surface =
> -             eglCreateWindowSurface(gr->egl_display,
> -                                    egl_config,
> -                                    window, NULL);
> +#ifdef EGL_EXT_platform_base
> +     if (gr->create_platform_window) {
> +             go->egl_surface =
> +                     gr->create_platform_window(gr->egl_display,
> +                                                egl_config,
> +                                                window_for_platform,
> +                                                NULL);
> +     } else
> +#endif
> +             go->egl_surface =
> +                     eglCreateWindowSurface(gr->egl_display,
> +                                            egl_config,
> +                                            window_for_legacy, NULL);
>  
>       if (go->egl_surface == EGL_NO_SURFACE) {
>               weston_log("failed to create egl surface\n");
> @@ -2124,6 +2138,21 @@ gl_renderer_setup_egl_extensions(struct 
> weston_compositor *ec)
>                          "supported. Performance could be affected.\n");
>  #endif
>  
> +#ifdef EGL_EXT_platform_base
> +     extensions =
> +             (const char *) eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
> +     if (!extensions) {
> +             weston_log("Retrieving EGL client extension string failed.\n");
> +             return -1;
> +     }
> +
> +     if (strstr(extensions, "EGL_EXT_platform_base"))
> +             gr->create_platform_window =
> +                     (void *) 
> eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");

Aah! So here is the runtime check for platform_base. Shouldn't this
have been done also in patches 1 and 2 when getting the
eglGetPlatformDisplayEXT pointer instead of just relying on
eglGetProcAddress returning NULL if it's not there?


Thanks,
pq

> +     else
> +             weston_log("warning: EGL_EXT_platform_base not supported.\n");
> +#endif
> +
>  #ifdef EGL_MESA_configless_context
>       if (strstr(extensions, "EGL_MESA_configless_context"))
>               gr->has_configless_context = 1;
> diff --git a/src/gl-renderer.h b/src/gl-renderer.h
> index bbf0ac6..c5550d1 100644
> --- a/src/gl-renderer.h
> +++ b/src/gl-renderer.h
> @@ -62,7 +62,8 @@ struct gl_renderer_interface {
>       EGLDisplay (*display)(struct weston_compositor *ec);
>  
>       int (*output_create)(struct weston_output *output,
> -                          EGLNativeWindowType window,
> +                          EGLNativeWindowType window_for_legacy,
> +                          void *window_for_platform,
>                            const EGLint *attribs,
>                            const EGLint *visual_id);
>  

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