1 /****************************************************************************
3 ** Copyright (C) 2012 MIPS Technologies, www.mips.com, author Damir Tatalovic <dtatalovic@mips.com>
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtGui module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
14 ** General Public License version 2.1 requirements will be met:
15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
24 ** and appearing in the file LICENSE.GPL included in the packaging of this
25 ** file. Please review the following information to ensure the GNU General
26 ** Public License version 3.0 requirements will be met:
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30 ** Alternatively, this file may be used in accordance with the terms and
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40 ****************************************************************************/
42 #include "qt_mips_asm_dsp.h"
44 LEAF_MIPS_DSPR2(INTERPOLATE_PIXEL_255_asm_mips_dspr2)
46 * a0 - uint x (First value to multiply)
47 * a1 - uint a (Multiplicator byte for first value)
48 * a2 - uint y (Second value to multiply)
49 * a3 - uint b (Multiplicator byte for second value)
56 muleu_s.ph.qbl t0, a0, a1
57 muleu_s.ph.qbl t1, a2, a3
58 muleu_s.ph.qbr t2, a0, a1
59 muleu_s.ph.qbr t3, a2, a3
68 precrq.qb.ph t2, t1, t7
72 END(INTERPOLATE_PIXEL_255_asm_mips_dspr2)
74 LEAF_MIPS_DSPR2(BYTE_MUL_asm_mips_dspr2)
76 * a0 - uint x (Value to multiply)
77 * a1 - uint a (Multiplicator byte)
81 replv.ph a1, a1 /* a1 = 0x00a00a */
82 li t4, 8388736 /* t4 = 0x800080 */
83 muleu_s.ph.qbl t0, a0, a1
84 muleu_s.ph.qbr t2, a0, a1
91 precrq.qb.ph t4, t0, t2
95 END(BYTE_MUL_asm_mips_dspr2)
97 LEAF_MIPS_DSPR2(qConvertRgb16To32_asm_mips_dspr2)
111 /* Convert two pixels at time (2 x rgb565 -> 2 x rgb8888) */
119 or t6, t6, t1 /* t6 = R1 G1 B1 | R2 G2 B2 */
121 ori t3, t3, 0xff00 /* t3 = FF 00 | FF 00 (in place) */
122 shrl.ph t7, t6, 11 /* t7 = 0 R1 | 0 R2 */
123 and t8, t6, t4 /* t8 = 0 G1 0 | 0 G2 0 */
124 shra.ph t9, t7, 2 /* t9 = 0 R1 | 0 R2 (lower) */
125 shll.ph t7, t7, 3 /* t7 = 0 R1 | 0 R2 (higher) */
126 shll.ph t8, t8, 5 /* t8 = G1 0 | G2 0 (higher) */
127 or t7, t7, t9 /* t7 = 0 R1 | 0 R2 (in place) */
128 shrl.qb t9, t8, 6 /* t9 = G1 0 | G2 0 (lower) */
129 or t3, t3, t7 /* t3 = FF R1 | FF R2 (in place) */
130 or t8, t8, t9 /* t8 = G1 0 | G2 0 (in place) */
131 and t6, t6, t5 /* t6 = 0 B1 | 0 B2 */
132 shll.ph t7, t6, 3 /* t7 = 0 B1 | 0 B2 (higher) */
133 shra.ph t9, t6, 2 /* t9 = 0 B1 | 0 B2 (lower) */
134 or t7, t7, t9 /* t7 = 0 B1 | 0 B2 (in place) */
135 or t8, t7, t8 /* t8 = G1 B1 | G2 B2 (in place) */
136 precrq.ph.w t2, t3, t8 /* t2 = FF R1 G1 B1 (in place) */
137 precr_sra.ph.w t3, t8, 0 /* t3 = FF R2 G2 B2 (in place) */
150 /* Remaining pixel conversion (rgb565 -> rgb8888) */
177 END(qConvertRgb16To32_asm_mips_dspr2)