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Issue 10386084: Update libjpeg-turbo. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libjpeg_turbo/
Patch Set: Created 8 years, 7 months ago
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1 /* 1 /*
2 * jdct.h 2 * jdct.h
3 * 3 *
4 * Copyright (C) 1994-1996, Thomas G. Lane. 4 * Copyright (C) 1994-1996, Thomas G. Lane.
5 * This file is part of the Independent JPEG Group's software. 5 * This file is part of the Independent JPEG Group's software.
6 * For conditions of distribution and use, see the accompanying README file. 6 * For conditions of distribution and use, see the accompanying README file.
7 * 7 *
8 * This include file contains common declarations for the forward and 8 * This include file contains common declarations for the forward and
9 * inverse DCT modules. These declarations are private to the DCT managers 9 * inverse DCT modules. These declarations are private to the DCT managers
10 * (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms. 10 * (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms.
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88 88
89 /* Short forms of external names for systems with brain-damaged linkers. */ 89 /* Short forms of external names for systems with brain-damaged linkers. */
90 90
91 #ifdef NEED_SHORT_EXTERNAL_NAMES 91 #ifdef NEED_SHORT_EXTERNAL_NAMES
92 #define jpeg_fdct_islow jFDislow 92 #define jpeg_fdct_islow jFDislow
93 #define jpeg_fdct_ifast jFDifast 93 #define jpeg_fdct_ifast jFDifast
94 #define jpeg_fdct_float jFDfloat 94 #define jpeg_fdct_float jFDfloat
95 #define jpeg_idct_islow jRDislow 95 #define jpeg_idct_islow jRDislow
96 #define jpeg_idct_ifast jRDifast 96 #define jpeg_idct_ifast jRDifast
97 #define jpeg_idct_float jRDfloat 97 #define jpeg_idct_float jRDfloat
98 #define jpeg_idct_7x7 jRD7x7
99 #define jpeg_idct_6x6 jRD6x6
100 #define jpeg_idct_5x5 jRD5x5
98 #define jpeg_idct_4x4 jRD4x4 101 #define jpeg_idct_4x4 jRD4x4
102 #define jpeg_idct_3x3 jRD3x3
99 #define jpeg_idct_2x2 jRD2x2 103 #define jpeg_idct_2x2 jRD2x2
100 #define jpeg_idct_1x1 jRD1x1 104 #define jpeg_idct_1x1 jRD1x1
105 #define jpeg_idct_9x9 jRD9x9
106 #define jpeg_idct_10x10 jRD10x10
107 #define jpeg_idct_11x11 jRD11x11
108 #define jpeg_idct_12x12 jRD12x12
109 #define jpeg_idct_13x13 jRD13x13
110 #define jpeg_idct_14x14 jRD14x14
111 #define jpeg_idct_15x15 jRD15x15
112 #define jpeg_idct_16x16 jRD16x16
101 #endif /* NEED_SHORT_EXTERNAL_NAMES */ 113 #endif /* NEED_SHORT_EXTERNAL_NAMES */
102 114
103 /* Extern declarations for the forward and inverse DCT routines. */ 115 /* Extern declarations for the forward and inverse DCT routines. */
104 116
105 EXTERN(void) jpeg_fdct_islow JPP((DCTELEM * data)); 117 EXTERN(void) jpeg_fdct_islow JPP((DCTELEM * data));
106 EXTERN(void) jpeg_fdct_ifast JPP((DCTELEM * data)); 118 EXTERN(void) jpeg_fdct_ifast JPP((DCTELEM * data));
107 EXTERN(void) jpeg_fdct_float JPP((FAST_FLOAT * data)); 119 EXTERN(void) jpeg_fdct_float JPP((FAST_FLOAT * data));
108 120
109 EXTERN(void) jpeg_idct_islow 121 EXTERN(void) jpeg_idct_islow
110 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, 122 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
111 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); 123 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
112 EXTERN(void) jpeg_idct_ifast 124 EXTERN(void) jpeg_idct_ifast
113 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, 125 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
114 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); 126 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
115 EXTERN(void) jpeg_idct_float 127 EXTERN(void) jpeg_idct_float
116 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, 128 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
117 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); 129 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
130 EXTERN(void) jpeg_idct_7x7
131 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
132 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
133 EXTERN(void) jpeg_idct_6x6
134 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
135 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
136 EXTERN(void) jpeg_idct_5x5
137 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
138 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
118 EXTERN(void) jpeg_idct_4x4 139 EXTERN(void) jpeg_idct_4x4
119 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, 140 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
120 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); 141 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
142 EXTERN(void) jpeg_idct_3x3
143 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
144 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
121 EXTERN(void) jpeg_idct_2x2 145 EXTERN(void) jpeg_idct_2x2
122 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, 146 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
123 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); 147 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
124 EXTERN(void) jpeg_idct_1x1 148 EXTERN(void) jpeg_idct_1x1
125 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, 149 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
126 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); 150 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
151 EXTERN(void) jpeg_idct_9x9
152 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
153 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
154 EXTERN(void) jpeg_idct_10x10
155 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
156 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
157 EXTERN(void) jpeg_idct_11x11
158 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
159 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
160 EXTERN(void) jpeg_idct_12x12
161 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
162 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
163 EXTERN(void) jpeg_idct_13x13
164 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
165 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
166 EXTERN(void) jpeg_idct_14x14
167 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
168 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
169 EXTERN(void) jpeg_idct_15x15
170 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
171 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
172 EXTERN(void) jpeg_idct_16x16
173 JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
174 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
127 175
128 176
129 /* 177 /*
130 * Macros for handling fixed-point arithmetic; these are used by many 178 * Macros for handling fixed-point arithmetic; these are used by many
131 * but not all of the DCT/IDCT modules. 179 * but not all of the DCT/IDCT modules.
132 * 180 *
133 * All values are expected to be of type INT32. 181 * All values are expected to be of type INT32.
134 * Fractional constants are scaled left by CONST_BITS bits. 182 * Fractional constants are scaled left by CONST_BITS bits.
135 * CONST_BITS is defined within each module using these macros, 183 * CONST_BITS is defined within each module using these macros,
136 * and may differ from one module to the next. 184 * and may differ from one module to the next.
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175 223
176 /* Same except both inputs are variables. */ 224 /* Same except both inputs are variables. */
177 225
178 #ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ 226 #ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */
179 #define MULTIPLY16V16(var1,var2) (((INT16) (var1)) * ((INT16) (var2))) 227 #define MULTIPLY16V16(var1,var2) (((INT16) (var1)) * ((INT16) (var2)))
180 #endif 228 #endif
181 229
182 #ifndef MULTIPLY16V16 /* default definition */ 230 #ifndef MULTIPLY16V16 /* default definition */
183 #define MULTIPLY16V16(var1,var2) ((var1) * (var2)) 231 #define MULTIPLY16V16(var1,var2) ((var1) * (var2))
184 #endif 232 #endif
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