1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.  All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27#ifndef ASM_UTIL_H
28#define ASM_UTIL_H
29
30/* μnew = μmask */
31static const char set_mask_asm[] =
32   "FRAG\n"
33   "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
34   "DCL SAMP[0], CONSTANT\n"
35   "DCL OUT[0], COLOR, CONSTANT\n"
36   "0: TEX OUT[0], IN[0], SAMP[0], 2D\n"/*umask*/
37   "1: END\n";
38
39/* μnew = 1 – (1 – μmask)*(1 – μprev) */
40static const char union_mask_asm[] =
41   "FRAG\n"
42   "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
43   "DCL IN[1], POSITION, LINEAR\n"
44   "DCL CONST[0], CONSTANT\n"
45   "DCL SAMP[0..1], CONSTANT\n"
46   "DCL TEMP[0..3], CONSTANT\n"
47   "DCL OUT[0], COLOR, CONSTANT\n"
48   "0: TEX TEMP[1], IN[0], SAMP[0], 2D\n"/*umask*/
49   "1: TEX TEMP[0], IN[1], SAMP[1], 2D\n"/*uprev*/
50   "2: SUB TEMP[2], CONST[0], TEMP[0]\n"
51   "3: SUB TEMP[3], CONST[0], TEMP[1]\n"
52   "4: MUL TEMP[0].w, TEMP[2].wwww, TEMP[3].wwww\n"
53   "5: SUB OUT[0], CONST[0], TEMP[0]\n"
54   "6: END\n";
55
56/* μnew = μmask *μprev */
57static const char intersect_mask_asm[] =
58   "FRAG\n"
59   "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
60   "DCL IN[1], POSITION, LINEAR\n"
61   "DCL CONST[0], CONSTANT\n"
62   "DCL SAMP[0..1], CONSTANT\n"
63   "DCL TEMP[0..1], CONSTANT\n"
64   "DCL OUT[0], COLOR, CONSTANT\n"
65   "0: TEX TEMP[0], IN[1], SAMP[1], 2D\n"/*uprev*/
66   "1: TEX TEMP[1], IN[0], SAMP[0], 2D\n"/*umask*/
67   "2: MUL OUT[0], TEMP[0].wwww, TEMP[1].wwww\n"
68   "3: END\n";
69
70/* μnew = μprev*(1 – μmask) */
71static const char subtract_mask_asm[] =
72   "FRAG\n"
73   "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
74   "DCL IN[1], POSITION, LINEAR\n"
75   "DCL CONST[0], CONSTANT\n"
76   "DCL SAMP[0..1], CONSTANT\n"
77   "DCL TEMP[0..2], CONSTANT\n"
78   "DCL OUT[0], COLOR, CONSTANT\n"
79   "0: TEX TEMP[1], IN[0], SAMP[0], 2D\n"/*umask*/
80   "1: TEX TEMP[0], IN[1], SAMP[1], 2D\n"/*uprev*/
81   "2: SUB TEMP[2], CONST[0], TEMP[1]\n"
82   "3: MUL OUT[0], TEMP[2].wwww, TEMP[0].wwww\n"
83   "4: END\n";
84
85#endif
86