From 144737a4988ebca0649c0d1d9ddba4a391757b86 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Mathias=20Fr=C3=B6hlich?= Date: Fri, 17 Jun 2016 08:09:05 +0200 Subject: [PATCH] vbo: Walk the VAO to check for mapped buffers. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Similarily to _mesa_all_varyings_in_vbos walk the VAO to check if we have an illegal mapped buffer object instead of walking all gl_client_arrays. Signed-off-by: Mathias Fröhlich Reviewed-by: Eric Anholt --- src/mesa/vbo/vbo_exec_array.c | 33 +++++++++++++++++++++++---------- 1 file changed, 23 insertions(+), 10 deletions(-) diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c index b75c772..2d5b0dc 100644 --- a/src/mesa/vbo/vbo_exec_array.c +++ b/src/mesa/vbo/vbo_exec_array.c @@ -47,16 +47,29 @@ * to draw. */ static bool -check_input_buffers_are_unmapped(const struct gl_client_array **inputs) +check_input_buffers_are_unmapped(const struct gl_vertex_array_object *vao) { - GLuint i; - - for (i = 0; i < VERT_ATTRIB_MAX; i++) { - if (inputs[i]) { - struct gl_buffer_object *obj = inputs[i]->BufferObj; - if (_mesa_check_disallowed_mapping(obj)) - return false; - } + /* Walk the enabled arrays that have a vbo attached */ + GLbitfield64 mask = vao->_Enabled & vao->VertexAttribBufferMask; + + while (mask) { + int i = ffsll(mask) - 1; + const struct gl_vertex_attrib_array *attrib_array = + &vao->VertexAttrib[i]; + const struct gl_vertex_buffer_binding *buffer_binding = + &vao->VertexBinding[attrib_array->VertexBinding]; + + /* Only enabled arrays shall appear in the _Enabled bitmask */ + assert(attrib_array->Enabled); + /* We have already masked with vao->VertexAttribBufferMask */ + assert(_mesa_is_bufferobj(buffer_binding->BufferObj)); + + /* Bail out once we find the first disallowed mapping */ + if (_mesa_check_disallowed_mapping(buffer_binding->BufferObj)) + return false; + + /* We have handled everything that is bound to this buffer_binding. */ + mask &= ~buffer_binding->_BoundArrays; } return true; @@ -75,7 +88,7 @@ check_buffers_are_unmapped(struct gl_context *ctx) /* check the current vertex arrays */ return !_mesa_check_disallowed_mapping(exec->vtx.bufferobj) && - check_input_buffers_are_unmapped(exec->array.inputs); + check_input_buffers_are_unmapped(ctx->Array.VAO); } -- 2.7.4