diff options
author | Chia-I Wu <olv@lunarg.com> | 2010-07-16 04:35:58 +0800 |
---|---|---|
committer | Chia-I Wu <olv@lunarg.com> | 2010-07-29 13:45:30 +0800 |
commit | 6d28bf917fb1d741d90fd3f05c22769376021fca (patch) | |
tree | 9b8724b30658d61426297113136c2d23c0c62f14 /src/gallium/drivers/i965/brw_pipe_vertex.c | |
parent | c5e9d3114a80d6d35a2f4e65783cdc75fcc2deac (diff) |
gallium: Implement draw_vbo and set_index_buffer for all drivers.
Some drivers define a generic function that is called by all drawing
functions. To implement draw_vbo for such drivers, either draw_vbo
calls the generic function or the prototype of the generic function is
changed to match draw_vbo.
Other drivers have no such generic function. draw_vbo is implemented by
calling either draw_arrays and draw_elements.
For most drivers, set_index_buffer does not mark the state dirty for
tracking. Instead, the index buffer state is emitted whenever draw_vbo
is called, just like the case with draw_elements. It surely can be
improved.
Diffstat (limited to 'src/gallium/drivers/i965/brw_pipe_vertex.c')
-rw-r--r-- | src/gallium/drivers/i965/brw_pipe_vertex.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965/brw_pipe_vertex.c b/src/gallium/drivers/i965/brw_pipe_vertex.c index 4a120a51da..007239efc4 100644 --- a/src/gallium/drivers/i965/brw_pipe_vertex.c +++ b/src/gallium/drivers/i965/brw_pipe_vertex.c @@ -274,10 +274,41 @@ static void brw_set_vertex_buffers(struct pipe_context *pipe, } +static void brw_set_index_buffer(struct pipe_context *pipe, + const struct pipe_index_buffer *ib) +{ + struct brw_context *brw = brw_context(pipe); + + if (ib) { + if (brw->curr.index_buffer == ib->buffer && + brw->curr.index_offset == ib->offset && + brw->curr.index_size == ib->index_size) + return; + + pipe_resource_reference(&brw->curr.index_buffer, ib->buffer); + brw->curr.index_offset = ib->offset; + brw->curr.index_size = ib->index_size; + } + else { + if (!brw->curr.index_buffer && + !brw->curr.index_offset && + !brw->curr.index_size) + return; + + pipe_resource_reference(&brw->curr.index_buffer, NULL); + brw->curr.index_offset = 0; + brw->curr.index_size = 0; + } + + brw->state.dirty.mesa |= PIPE_NEW_INDEX_BUFFER; +} + + void brw_pipe_vertex_init( struct brw_context *brw ) { brw->base.set_vertex_buffers = brw_set_vertex_buffers; + brw->base.set_index_buffer = brw_set_index_buffer; brw->base.create_vertex_elements_state = brw_create_vertex_elements_state; brw->base.bind_vertex_elements_state = brw_bind_vertex_elements_state; brw->base.delete_vertex_elements_state = brw_delete_vertex_elements_state; |