diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/auxiliary/util/u_vbuf.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/util/u_vbuf.c b/src/gallium/auxiliary/util/u_vbuf.c index 80c30acc767..d30a702210a 100644 --- a/src/gallium/auxiliary/util/u_vbuf.c +++ b/src/gallium/auxiliary/util/u_vbuf.c @@ -142,6 +142,7 @@ enum { struct u_vbuf { struct u_vbuf_caps caps; + bool has_signed_vb_offset; struct pipe_context *pipe; struct translate_cache *translate_cache; @@ -311,6 +312,10 @@ u_vbuf_create(struct pipe_context *pipe, mgr->translate_cache = translate_cache_create(); memset(mgr->fallback_vbs, ~0, sizeof(mgr->fallback_vbs)); + mgr->has_signed_vb_offset = + pipe->screen->get_param(pipe->screen, + PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET); + return mgr; } @@ -486,7 +491,8 @@ u_vbuf_translate_buffers(struct u_vbuf *mgr, struct translate_key *key, } else { /* Create and map the output buffer. */ u_upload_alloc(mgr->pipe->stream_uploader, - key->output_stride * start_vertex, + mgr->has_signed_vb_offset ? + 0 : key->output_stride * start_vertex, key->output_stride * num_vertices, 4, &out_offset, &out_buffer, (void**)&out_map); @@ -970,7 +976,9 @@ u_vbuf_upload_buffers(struct u_vbuf *mgr, real_vb = &mgr->real_vertex_buffer[i]; ptr = mgr->vertex_buffer[i].buffer.user; - u_upload_data(mgr->pipe->stream_uploader, start, end - start, 4, + u_upload_data(mgr->pipe->stream_uploader, + mgr->has_signed_vb_offset ? 0 : start, + end - start, 4, ptr + start, &real_vb->buffer_offset, &real_vb->buffer.resource); if (!real_vb->buffer.resource) return PIPE_ERROR_OUT_OF_MEMORY; |