summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/llvmpipe/lp_state_blend.c
blob: a94cd05ef20c7a9616dc4dbb6c985c2ce58f30fe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
/**************************************************************************
 * 
 * Copyright 2009 VMware, Inc.
 * 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.
 * 
 **************************************************************************/

/**
 * @author Jose Fonseca <jfonseca@vmware.com>
 * @author Keith Whitwell <keith@tungstengraphics.com>
 */

#include "util/u_memory.h"
#include "util/u_math.h"
#include "util/u_debug_dump.h"
#include "draw/draw_context.h"
#include "lp_screen.h"
#include "lp_context.h"
#include "lp_state.h"


void *
llvmpipe_create_blend_state(struct pipe_context *pipe,
                            const struct pipe_blend_state *blend)
{
   return mem_dup(blend, sizeof(*blend));
}

void llvmpipe_bind_blend_state( struct pipe_context *pipe,
                                void *blend )
{
   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);

   if (llvmpipe->blend == blend)
      return;

   draw_flush(llvmpipe->draw);

   llvmpipe->blend = blend;

   llvmpipe->dirty |= LP_NEW_BLEND;
}

void llvmpipe_delete_blend_state(struct pipe_context *pipe,
                                 void *blend)
{
   FREE( blend );
}


void llvmpipe_set_blend_color( struct pipe_context *pipe,
			     const struct pipe_blend_color *blend_color )
{
   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
   unsigned i, j;

   if(memcmp(&llvmpipe->blend_color, blend_color, sizeof *blend_color) == 0)
      return;

   draw_flush(llvmpipe->draw);

   memcpy(&llvmpipe->blend_color, blend_color, sizeof *blend_color);

   if(!llvmpipe->jit_context.blend_color)
      llvmpipe->jit_context.blend_color = align_malloc(4 * 16, 16);
   for (i = 0; i < 4; ++i) {
      uint8_t c = float_to_ubyte(blend_color->color[i]);
      for (j = 0; j < 16; ++j)
         llvmpipe->jit_context.blend_color[i*16 + j] = c;
   }
}


/** XXX move someday?  Or consolidate all these simple state setters
 * into one file.
 */


void *
llvmpipe_create_depth_stencil_state(struct pipe_context *pipe,
				    const struct pipe_depth_stencil_alpha_state *depth_stencil)
{
   return mem_dup(depth_stencil, sizeof(*depth_stencil));
}

void
llvmpipe_bind_depth_stencil_state(struct pipe_context *pipe,
                                  void *depth_stencil)
{
   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);

   if (llvmpipe->depth_stencil == depth_stencil)
      return;

   draw_flush(llvmpipe->draw);

   llvmpipe->depth_stencil = depth_stencil;

   if(llvmpipe->depth_stencil)
      llvmpipe->jit_context.alpha_ref_value = llvmpipe->depth_stencil->alpha.ref_value;

   llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA;
}

void
llvmpipe_delete_depth_stencil_state(struct pipe_context *pipe, void *depth)
{
   FREE( depth );
}