1/**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28/* Authors:  Keith Whitwell <keithw@vmware.com>
29 */
30#include "lp_context.h"
31#include "lp_state.h"
32#include "draw/draw_context.h"
33
34
35static void
36llvmpipe_set_clip_state(struct pipe_context *pipe,
37                        const struct pipe_clip_state *clip)
38{
39   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
40
41   /* pass the clip state to the draw module */
42   draw_set_clip_state(llvmpipe->draw, clip);
43}
44
45
46static void
47llvmpipe_set_viewport_states(struct pipe_context *pipe,
48                             unsigned start_slot,
49                             unsigned num_viewports,
50                             const struct pipe_viewport_state *viewports)
51{
52   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
53
54   /* pass the viewport info to the draw module */
55   draw_set_viewport_states(llvmpipe->draw, start_slot, num_viewports,
56                            viewports);
57
58   memcpy(llvmpipe->viewports + start_slot, viewports,
59          sizeof(struct pipe_viewport_state) * num_viewports);
60   llvmpipe->dirty |= LP_NEW_VIEWPORT;
61}
62
63
64static void
65llvmpipe_set_scissor_states(struct pipe_context *pipe,
66                            unsigned start_slot,
67                            unsigned num_scissors,
68                            const struct pipe_scissor_state *scissors)
69{
70   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
71
72   draw_flush(llvmpipe->draw);
73
74   debug_assert(start_slot < PIPE_MAX_VIEWPORTS);
75   debug_assert((start_slot + num_scissors) <= PIPE_MAX_VIEWPORTS);
76
77   memcpy(llvmpipe->scissors + start_slot, scissors,
78          sizeof(struct pipe_scissor_state) * num_scissors);
79
80   llvmpipe->dirty |= LP_NEW_SCISSOR;
81}
82
83
84static void
85llvmpipe_set_polygon_stipple(struct pipe_context *pipe,
86                             const struct pipe_poly_stipple *stipple)
87{
88   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
89
90   draw_flush(llvmpipe->draw);
91
92   llvmpipe->poly_stipple = *stipple; /* struct copy */
93   llvmpipe->dirty |= LP_NEW_STIPPLE;
94}
95
96
97
98void
99llvmpipe_init_clip_funcs(struct llvmpipe_context *llvmpipe)
100{
101   llvmpipe->pipe.set_clip_state = llvmpipe_set_clip_state;
102   llvmpipe->pipe.set_polygon_stipple = llvmpipe_set_polygon_stipple;
103   llvmpipe->pipe.set_scissor_states = llvmpipe_set_scissor_states;
104   llvmpipe->pipe.set_viewport_states = llvmpipe_set_viewport_states;
105}
106