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
|
/**************************************************************************
*
* 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.
*
**************************************************************************/
/**
* \brief quad colormask stage
* \author Brian Paul
*/
#include "main/glheader.h"
#include "main/imports.h"
#include "main/macros.h"
#include "pipe/p_defines.h"
#include "sp_context.h"
#include "sp_headers.h"
#include "sp_surface.h"
#include "sp_quad.h"
static void
colormask_quad(struct quad_stage *qs, struct quad_header *quad)
{
struct softpipe_context *softpipe = qs->softpipe;
struct softpipe_surface *sps = softpipe_surface(softpipe->cbuf);
GLfloat dest[4][QUAD_SIZE];
sps->read_quad_f_swz(sps, quad->x0, quad->y0, dest);
/* R */
if (!(softpipe->blend.colormask & PIPE_MASK_R))
COPY_4FV(quad->outputs.color[0], dest[0]);
/* G */
if (!(softpipe->blend.colormask & PIPE_MASK_G))
COPY_4FV(quad->outputs.color[1], dest[1]);
/* B */
if (!(softpipe->blend.colormask & PIPE_MASK_B))
COPY_4FV(quad->outputs.color[2], dest[2]);
/* A */
if (!(softpipe->blend.colormask & PIPE_MASK_A))
COPY_4FV(quad->outputs.color[3], dest[3]);
/* pass quad to next stage */
qs->next->run(qs->next, quad);
}
static void colormask_begin(struct quad_stage *qs)
{
if (qs->next)
qs->next->begin(qs->next);
}
struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe )
{
struct quad_stage *stage = CALLOC_STRUCT(quad_stage);
stage->softpipe = softpipe;
stage->begin = colormask_begin;
stage->run = colormask_quad;
return stage;
}
|
