From 73f96c51052bf5233191d852ef463462306bf1d5 Mon Sep 17 00:00:00 2001 From: Brian Date: Wed, 20 Jun 2007 08:47:09 -0600 Subject: Initial work for glClear(), clear color state. --- src/mesa/state_tracker/st_atom_clear_color.c | 62 ++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 src/mesa/state_tracker/st_atom_clear_color.c (limited to 'src/mesa/state_tracker/st_atom_clear_color.c') diff --git a/src/mesa/state_tracker/st_atom_clear_color.c b/src/mesa/state_tracker/st_atom_clear_color.c new file mode 100644 index 0000000000..adf730cd8c --- /dev/null +++ b/src/mesa/state_tracker/st_atom_clear_color.c @@ -0,0 +1,62 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell + * Brian Paul + */ + +#include "st_context.h" +#include "st_atom.h" +#include "pipe/p_context.h" + + +static void +update_clear_color_state( struct st_context *st ) +{ + struct pipe_clear_color_state clear; + + clear.color[0] = st->ctx->Color.ClearColor[0]; + clear.color[1] = st->ctx->Color.ClearColor[1]; + clear.color[2] = st->ctx->Color.ClearColor[2]; + clear.color[3] = st->ctx->Color.ClearColor[3]; + + if (memcmp(&clear, &st->state.clear_color, sizeof(clear)) != 0) { + st->state.clear_color = clear; + st->pipe->set_clear_color_state( st->pipe, &clear ); + } +} + + +const struct st_tracked_state st_update_clear_color = { + .dirty = { + .mesa = _NEW_COLOR, + .st = 0, + }, + .update = update_clear_color_state +}; -- cgit v1.2.3