From afc160e1c8f87d0a76e41f1100d528d8ab82ecc4 Mon Sep 17 00:00:00 2001 From: Chia-I Wu Date: Wed, 20 Jul 2011 18:52:33 +0800 Subject: [PATCH] u_vbuf_mgr: restore buffer offsets u_vbuf_upload_buffers modifies the buffer offsets. If they are not restored, and any of the vertex formats is not supported natively, the next u_vbuf_mgr_draw_begin call will translate the vertex buffers with incorrect buffer offsets. --- src/gallium/auxiliary/util/u_vbuf_mgr.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/gallium/auxiliary/util/u_vbuf_mgr.c b/src/gallium/auxiliary/util/u_vbuf_mgr.c index 374fc336b83..19eb689cfb2 100644 --- a/src/gallium/auxiliary/util/u_vbuf_mgr.c +++ b/src/gallium/auxiliary/util/u_vbuf_mgr.c @@ -79,6 +79,8 @@ struct u_vbuf_mgr_priv { void *saved_ve, *fallback_ve; boolean ve_binding_lock; + unsigned saved_buffer_offset[PIPE_MAX_ATTRIBS]; + boolean any_user_vbs; boolean incompatible_vb_layout; }; @@ -488,6 +490,7 @@ void u_vbuf_mgr_set_vertex_buffers(struct u_vbuf_mgr *mgrb, pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, vb->buffer); pipe_resource_reference(&mgr->b.real_vertex_buffer[i], NULL); + mgr->saved_buffer_offset[i] = vb->buffer_offset; if (!vb->buffer) { continue; @@ -647,6 +650,13 @@ u_vbuf_mgr_draw_begin(struct u_vbuf_mgr *mgrb, void u_vbuf_mgr_draw_end(struct u_vbuf_mgr *mgrb) { struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb; + unsigned i; + + /* buffer offsets were modified in u_vbuf_upload_buffers */ + if (mgr->any_user_vbs) { + for (i = 0; i < mgr->b.nr_vertex_buffers; i++) + mgr->b.vertex_buffer[i].buffer_offset = mgr->saved_buffer_offset[i]; + } if (mgr->fallback_ve) { u_vbuf_translate_end(mgr); -- 2.30.2