1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 TUNGSTEN GRAPHICS 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 <keith@tungstengraphics.com>
29 */
30
31#include "util/u_math.h"
32#include "util/u_memory.h"
33#include "draw/draw_context.h"
34#include "sp_context.h"
35#include "sp_state.h"
36
37
38static void *
39softpipe_create_blend_state(struct pipe_context *pipe,
40                            const struct pipe_blend_state *blend)
41{
42   return mem_dup(blend, sizeof(*blend));
43}
44
45
46static void
47softpipe_bind_blend_state(struct pipe_context *pipe,
48                          void *blend)
49{
50   struct softpipe_context *softpipe = softpipe_context(pipe);
51
52   draw_flush(softpipe->draw);
53
54   softpipe->blend = (struct pipe_blend_state *)blend;
55
56   softpipe->dirty |= SP_NEW_BLEND;
57}
58
59
60static void
61softpipe_delete_blend_state(struct pipe_context *pipe,
62                            void *blend)
63{
64   FREE( blend );
65}
66
67
68static void
69softpipe_set_blend_color(struct pipe_context *pipe,
70                         const struct pipe_blend_color *blend_color)
71{
72   struct softpipe_context *softpipe = softpipe_context(pipe);
73   unsigned i;
74
75   draw_flush(softpipe->draw);
76
77   softpipe->blend_color = *blend_color;
78
79   /* save clamped color too */
80   for (i = 0; i < 4; i++)
81      softpipe->blend_color_clamped.color[i] =
82         CLAMP(blend_color->color[i], 0.0f, 1.0f);
83
84   softpipe->dirty |= SP_NEW_BLEND;
85}
86
87
88static void *
89softpipe_create_depth_stencil_state(struct pipe_context *pipe,
90                                    const struct pipe_depth_stencil_alpha_state *depth_stencil)
91{
92   return mem_dup(depth_stencil, sizeof(*depth_stencil));
93}
94
95
96static void
97softpipe_bind_depth_stencil_state(struct pipe_context *pipe,
98                                  void *depth_stencil)
99{
100   struct softpipe_context *softpipe = softpipe_context(pipe);
101
102   softpipe->depth_stencil = (struct pipe_depth_stencil_alpha_state *)depth_stencil;
103
104   softpipe->dirty |= SP_NEW_DEPTH_STENCIL_ALPHA;
105}
106
107
108static void
109softpipe_delete_depth_stencil_state(struct pipe_context *pipe, void *depth)
110{
111   FREE( depth );
112}
113
114
115static void
116softpipe_set_stencil_ref(struct pipe_context *pipe,
117                         const struct pipe_stencil_ref *stencil_ref)
118{
119   struct softpipe_context *softpipe = softpipe_context(pipe);
120
121   softpipe->stencil_ref = *stencil_ref;
122
123   softpipe->dirty |= SP_NEW_DEPTH_STENCIL_ALPHA;
124}
125
126
127static void
128softpipe_set_sample_mask(struct pipe_context *pipe,
129                         unsigned sample_mask)
130{
131}
132
133
134void
135softpipe_init_blend_funcs(struct pipe_context *pipe)
136{
137   pipe->create_blend_state = softpipe_create_blend_state;
138   pipe->bind_blend_state   = softpipe_bind_blend_state;
139   pipe->delete_blend_state = softpipe_delete_blend_state;
140
141   pipe->set_blend_color = softpipe_set_blend_color;
142
143   pipe->create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state;
144   pipe->bind_depth_stencil_alpha_state   = softpipe_bind_depth_stencil_state;
145   pipe->delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state;
146
147   pipe->set_stencil_ref = softpipe_set_stencil_ref;
148
149   pipe->set_sample_mask = softpipe_set_sample_mask;
150}
151