On Sun, Jan 5, 2014 at 10:26 PM, Axel Davy <axel.d...@ens.fr> wrote: > Signed-off-by: Axel Davy <axel.d...@ens.fr> > --- > src/gallium/state_trackers/dri/drm/dri2.c | 49 > +++++++++++++++++++++++++++++-- > 1 file changed, 47 insertions(+), 2 deletions(-) > > diff --git a/src/gallium/state_trackers/dri/drm/dri2.c > b/src/gallium/state_trackers/dri/drm/dri2.c > index 2a5b7b4..89d9040 100644 > --- a/src/gallium/state_trackers/dri/drm/dri2.c > +++ b/src/gallium/state_trackers/dri/drm/dri2.c > @@ -985,6 +985,49 @@ dri2_from_fds(__DRIscreen *screen, int width, int > height, int fourcc, > } > > static void > +dri2_blit_image(__DRIcontext *context, __DRIimage *dst, __DRIimage *src, > + int dstx0, int dsty0, int dstwidth, int dstheight, > + int srcx0, int srcy0, int srcwidth, int srcheight, > + int flags) > +{ > + struct dri_context *ctx = dri_context(context); > + struct pipe_context *pipe = ctx->st->pipe; > + struct pipe_screen* screen = dri_screen(ctx->sPriv)->base.screen; > + struct pipe_fence_handle *fence; > + struct pipe_blit_info blit; > + > + if (!dst || !src) > + return; > + > + memset(&blit, 0, sizeof(blit)); > + blit.dst.resource = dst->texture; > + blit.dst.box.x = dstx0; > + blit.dst.box.y = dsty0; > + blit.dst.box.width = dstwidth; > + blit.dst.box.height = dstheight; > + blit.dst.box.depth = 1; > + blit.dst.format = dst->texture->format; > + blit.src.resource = src->texture; > + blit.src.box.x = srcx0; > + blit.src.box.y = srcy0; > + blit.src.box.width = srcwidth; > + blit.src.box.height = srcheight; > + blit.src.box.depth = 1; > + blit.src.format = src->texture->format; > + blit.mask = PIPE_MASK_RGBA; > + blit.filter = PIPE_TEX_FILTER_NEAREST; > + > + pipe->blit(pipe, &blit); > + > + pipe->flush_resource(pipe, dst->texture); > + > + ctx->st->flush(ctx->st, 0, &fence); > + > + if (flags & __BLIT_FLAG_FINISH) > + (void) screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE); > + screen->fence_reference(screen, &fence, NULL);
Fences might not be implemented by some drivers. I recommend setting the fence pointer to NULL, then calling flush and then checking if it's not NULL. Also, getting a fence incurs some overhead, so if __BLIT_FLAG_FINISH is not set, the last parameter of st->flush should be NULL. Who can call this function? The X server? Marek _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev