jsimd_neon.c revision 4660f767bca6ddae968d4f5fcfa2fd5ab80c4692 
1/* Copyright (c) 2011,  NVIDIA CORPORATION. All rights reserved.
2 *
3 * Redistribution and use in source and binary forms, with or without
4 * modification, are permitted provided that the following conditions
5 * are met:
6 *
7 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *  * Neither the name of the NVIDIA CORPORATION nor the names of its
13 *    contributors may be used to endorse or promote products derived
14 *    from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
25 * THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#define JPEG_INTERNALS
29#include "jinclude.h"
30#include "jpeglib.h"
31#include "jdct.h"
32
33
34#if defined(NV_ARM_NEON) && defined(__ARM_HAVE_NEON)
35
36EXTERN(void) jsimd_ycc_rgba8888_convert_neon
37        JPP((JDIMENSION out_width,
38             JSAMPIMAGE input_buf, JDIMENSION input_row,
39             JSAMPARRAY output_buf, int num_rows));
40EXTERN(void) jsimd_ycc_rgb565_convert_neon
41        JPP((JDIMENSION out_width,
42             JSAMPIMAGE input_buf, JDIMENSION input_row,
43             JSAMPARRAY output_buf, int num_rows));
44
45EXTERN(void) jsimd_idct_ifast_neon JPP((void * dct_table,
46                                        JCOEFPTR coef_block,
47                                        JSAMPARRAY output_buf,
48                                        JDIMENSION output_col));
49
50EXTERN(void) jsimd_idct_2x2_neon JPP((void * dct_table,
51                                        JCOEFPTR coef_block,
52                                        JSAMPARRAY output_buf,
53                                        JDIMENSION output_col));
54
55EXTERN(void) jsimd_idct_4x4_neon JPP((void * dct_table,
56                                        JCOEFPTR coef_block,
57                                        JSAMPARRAY output_buf,
58                                        JDIMENSION output_col));
59
60GLOBAL(void)
61jsimd_ycc_rgba8888_convert (j_decompress_ptr cinfo,
62                       JSAMPIMAGE input_buf, JDIMENSION input_row,
63                       JSAMPARRAY output_buf, int num_rows)
64{
65    void (*neonfct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int);
66
67    neonfct=jsimd_ycc_rgba8888_convert_neon;
68
69    neonfct(cinfo->output_width, input_buf,
70        input_row, output_buf, num_rows);
71}
72
73GLOBAL(void)
74jsimd_ycc_rgb565_convert (j_decompress_ptr cinfo,
75                       JSAMPIMAGE input_buf, JDIMENSION input_row,
76                       JSAMPARRAY output_buf, int num_rows)
77{
78    void (*neonfct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int);
79
80    neonfct=jsimd_ycc_rgb565_convert_neon;
81
82    neonfct(cinfo->output_width, input_buf,
83        input_row, output_buf, num_rows);
84}
85
86GLOBAL(void)
87jsimd_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr,
88                JCOEFPTR coef_block, JSAMPARRAY output_buf,
89                JDIMENSION output_col)
90{
91    jsimd_idct_ifast_neon(compptr->dct_table, coef_block, output_buf, output_col);
92}
93
94
95GLOBAL(void)
96jsimd_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
97                JCOEFPTR coef_block, JSAMPARRAY output_buf,
98                JDIMENSION output_col)
99{
100    jsimd_idct_2x2_neon(compptr->dct_table, coef_block, output_buf, output_col);
101}
102
103GLOBAL(void)
104jsimd_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
105                JCOEFPTR coef_block, JSAMPARRAY output_buf,
106                JDIMENSION output_col)
107{
108    jsimd_idct_4x4_neon(compptr->dct_table, coef_block, output_buf, output_col);
109}
110
111
112GLOBAL(int)
113cap_neon_idct_2x2 (void)
114{
115  if (  (DCTSIZE != 8)              ||
116        (sizeof(JCOEF) != 2)        ||
117        (BITS_IN_JSAMPLE != 8)      ||
118        (sizeof(JDIMENSION) != 4)   ||
119        (sizeof(ISLOW_MULT_TYPE) != 2))
120    return 0;
121
122    return 1;
123}
124
125GLOBAL(int)
126cap_neon_idct_4x4 (void)
127{
128
129  if (  (DCTSIZE != 8)              ||
130        (sizeof(JCOEF) != 2)        ||
131        (BITS_IN_JSAMPLE != 8)      ||
132        (sizeof(JDIMENSION) != 4)   ||
133        (sizeof(ISLOW_MULT_TYPE) != 2))
134    return 0;
135
136    return 1;
137}
138
139GLOBAL(int)
140cap_neon_idct_ifast (void)
141{
142
143  if (  (DCTSIZE != 8)                  ||
144        (sizeof(JCOEF) != 2)            ||
145        (BITS_IN_JSAMPLE != 8)          ||
146        (sizeof(JDIMENSION) != 4)       ||
147        (sizeof(IFAST_MULT_TYPE) != 2)  ||
148        (IFAST_SCALE_BITS != 2))
149    return 0;
150
151    return 1;
152
153}
154
155GLOBAL(int)
156cap_neon_ycc_rgb (void)
157{
158
159  if(   (BITS_IN_JSAMPLE != 8)                          ||
160        (sizeof(JDIMENSION) != 4)                       ||
161        ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4)))
162    return 0;
163
164    return 1;
165}
166
167#endif
168
169
170