<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Feb 11, 2016 at 8:34 AM, Derek Foreman <<a href="mailto:derekf@osg.samsung.com" target="_blank">derekf@osg.samsung.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Since commit d1314de293e9e4a63c35f094c3893aaaed8580b4 we ignore damage passed to SwapBuffersWithDamage. Wayland 1.10 now has functionality that allows us to properly process those damage rectangles, and a way to query if it's available. Now we can use wl_surface.damage_buffer and interpret the incoming damage as being in buffer co-ordinates. Signed-off-by: Derek Foreman <<a href="mailto:derekf@osg.samsung.com">derekf@osg.samsung.com</a>> </blockquote><div> </div><div>Reviewed-by: Jason Ekstrand <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>> </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> --- src/egl/drivers/dri2/platform_wayland.c | 32 +++++++++++++++++++++++++++++--- 1 file changed, 29 insertions(+), 3 deletions(-) diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c index c2438f7..b5a5b59 100644 --- a/src/egl/drivers/dri2/platform_wayland.c +++ b/src/egl/drivers/dri2/platform_wayland.c @@ -653,6 +653,30 @@ create_wl_buffer(struct dri2_egl_surface *dri2_surf) &wl_buffer_listener, dri2_surf); } +static EGLBoolean +try_damage_buffer(struct dri2_egl_surface *dri2_surf, + const EGLint *rects, + EGLint n_rects) +{ +#ifdef WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION + int i; + + if (wl_proxy_get_version((struct wl_proxy *) dri2_surf->wl_win->surface) + < WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION) + return EGL_FALSE; + + for (i = 0; i < n_rects; i++) { + const int *rect = &rects[i * 4]; + + wl_surface_damage_buffer(dri2_surf->wl_win->surface, + rect[0], + dri2_surf->base.Height - rect[1] - rect[3], + rect[2], rect[3]); + } + return EGL_TRUE; +#endif + return EGL_FALSE; +} /** * Called via eglSwapBuffers(), drv->API.SwapBuffers(). */ @@ -703,10 +727,12 @@ dri2_wl_swap_buffers_with_damage(_EGLDriver *drv, dri2_surf->dx = 0; dri2_surf->dy = 0; - /* We deliberately ignore the damage region and post maximum damage, due to + /* If the compositor doesn't support damage_buffer, we deliberately + * ignore the damage region and post maximum damage, due to * <a href="https://bugs.freedesktop.org/78190" rel="noreferrer" target="_blank">https://bugs.freedesktop.org/78190</a> */ - wl_surface_damage(dri2_surf->wl_win->surface, - 0, 0, INT32_MAX, INT32_MAX); + if (!n_rects || !try_damage_buffer(dri2_surf, rects, n_rects)) + wl_surface_damage(dri2_surf->wl_win->surface, + 0, 0, INT32_MAX, INT32_MAX); if (dri2_dpy->is_different_gpu) { _EGLContext *ctx = _eglGetCurrentContext(); -- 2.7.0 _______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </blockquote></div> </div></div>