1 // Copyright 2014 Google Inc. All Rights Reserved.
2 //
3 // Use of this source code is governed by a BSD-style license
4 // that can be found in the COPYING file in the root of the source
5 // tree. An additional intellectual property rights grant can be found
6 // in the file PATENTS. All contributing project authors may
7 // be found in the AUTHORS file in the root of the source tree.
8 // -----------------------------------------------------------------------------
9 //
10 // MIPS common macros
11 
12 #ifndef WEBP_DSP_MIPS_MACRO_H_
13 #define WEBP_DSP_MIPS_MACRO_H_
14 
15 #if defined(__GNUC__) && defined(__ANDROID__) && LOCAL_GCC_VERSION == 0x409
16 #define WORK_AROUND_GCC
17 #endif
18 
19 #define STR(s) #s
20 #define XSTR(s) STR(s)
21 
22 // O0[31..16 | 15..0] = I0[31..16 | 15..0] + I1[31..16 | 15..0]
23 // O1[31..16 | 15..0] = I0[31..16 | 15..0] - I1[31..16 | 15..0]
24 // O - output
25 // I - input (macro doesn't change it)
26 #define ADD_SUB_HALVES(O0, O1,                                                 \
27                        I0, I1)                                                 \
28   "addq.ph          %[" #O0 "],   %[" #I0 "],  %[" #I1 "]           \n\t"      \
29   "subq.ph          %[" #O1 "],   %[" #I0 "],  %[" #I1 "]           \n\t"
30 
31 // O - output
32 // I - input (macro doesn't change it)
33 // I[0/1] - offset in bytes
34 #define LOAD_IN_X2(O0, O1,                                                     \
35                    I0, I1)                                                     \
36   "lh               %[" #O0 "],   " #I0 "(%[in])                  \n\t"        \
37   "lh               %[" #O1 "],   " #I1 "(%[in])                  \n\t"
38 
39 // I0 - location
40 // I1..I9 - offsets in bytes
41 #define LOAD_WITH_OFFSET_X4(O0, O1, O2, O3,                                    \
42                             I0, I1, I2, I3, I4, I5, I6, I7, I8, I9)            \
43   "ulw    %[" #O0 "],    " #I1 "+" XSTR(I9) "*" #I5 "(%[" #I0 "])       \n\t"  \
44   "ulw    %[" #O1 "],    " #I2 "+" XSTR(I9) "*" #I6 "(%[" #I0 "])       \n\t"  \
45   "ulw    %[" #O2 "],    " #I3 "+" XSTR(I9) "*" #I7 "(%[" #I0 "])       \n\t"  \
46   "ulw    %[" #O3 "],    " #I4 "+" XSTR(I9) "*" #I8 "(%[" #I0 "])       \n\t"
47 
48 // O - output
49 // IO - input/output
50 // I - input (macro doesn't change it)
51 #define MUL_SHIFT_SUM(O0, O1, O2, O3, O4, O5, O6, O7,                          \
52                       IO0, IO1, IO2, IO3,                                      \
53                       I0, I1, I2, I3, I4, I5, I6, I7)                          \
54   "mul              %[" #O0 "],   %[" #I0 "],   %[kC2]        \n\t"            \
55   "mul              %[" #O1 "],   %[" #I0 "],   %[kC1]        \n\t"            \
56   "mul              %[" #O2 "],   %[" #I1 "],   %[kC2]        \n\t"            \
57   "mul              %[" #O3 "],   %[" #I1 "],   %[kC1]        \n\t"            \
58   "mul              %[" #O4 "],   %[" #I2 "],   %[kC2]        \n\t"            \
59   "mul              %[" #O5 "],   %[" #I2 "],   %[kC1]        \n\t"            \
60   "mul              %[" #O6 "],   %[" #I3 "],   %[kC2]        \n\t"            \
61   "mul              %[" #O7 "],   %[" #I3 "],   %[kC1]        \n\t"            \
62   "sra              %[" #O0 "],   %[" #O0 "],   16            \n\t"            \
63   "sra              %[" #O1 "],   %[" #O1 "],   16            \n\t"            \
64   "sra              %[" #O2 "],   %[" #O2 "],   16            \n\t"            \
65   "sra              %[" #O3 "],   %[" #O3 "],   16            \n\t"            \
66   "sra              %[" #O4 "],   %[" #O4 "],   16            \n\t"            \
67   "sra              %[" #O5 "],   %[" #O5 "],   16            \n\t"            \
68   "sra              %[" #O6 "],   %[" #O6 "],   16            \n\t"            \
69   "sra              %[" #O7 "],   %[" #O7 "],   16            \n\t"            \
70   "addu             %[" #IO0 "],  %[" #IO0 "],  %[" #I4 "]    \n\t"            \
71   "addu             %[" #IO1 "],  %[" #IO1 "],  %[" #I5 "]    \n\t"            \
72   "subu             %[" #IO2 "],  %[" #IO2 "],  %[" #I6 "]    \n\t"            \
73   "subu             %[" #IO3 "],  %[" #IO3 "],  %[" #I7 "]    \n\t"
74 
75 // O - output
76 // I - input (macro doesn't change it)
77 #define INSERT_HALF_X2(O0, O1,                                                 \
78                        I0, I1)                                                 \
79   "ins              %[" #O0 "],   %[" #I0 "], 16,    16           \n\t"        \
80   "ins              %[" #O1 "],   %[" #I1 "], 16,    16           \n\t"
81 
82 // O - output
83 // I - input (macro doesn't change it)
84 #define SRA_16(O0, O1, O2, O3,                                                 \
85                I0, I1, I2, I3)                                                 \
86   "sra              %[" #O0 "],  %[" #I0 "],  16                  \n\t"        \
87   "sra              %[" #O1 "],  %[" #I1 "],  16                  \n\t"        \
88   "sra              %[" #O2 "],  %[" #I2 "],  16                  \n\t"        \
89   "sra              %[" #O3 "],  %[" #I3 "],  16                  \n\t"
90 
91 // temp0[31..16 | 15..0] = temp8[31..16 | 15..0] + temp12[31..16 | 15..0]
92 // temp1[31..16 | 15..0] = temp8[31..16 | 15..0] - temp12[31..16 | 15..0]
93 // temp0[31..16 | 15..0] = temp0[31..16 >> 3 | 15..0 >> 3]
94 // temp1[31..16 | 15..0] = temp1[31..16 >> 3 | 15..0 >> 3]
95 // O - output
96 // I - input (macro doesn't change it)
97 #define SHIFT_R_SUM_X2(O0, O1, O2, O3, O4, O5, O6, O7,                         \
98                        I0, I1, I2, I3, I4, I5, I6, I7)                         \
99   "addq.ph          %[" #O0 "],   %[" #I0 "],   %[" #I4 "]    \n\t"            \
100   "subq.ph          %[" #O1 "],   %[" #I0 "],   %[" #I4 "]    \n\t"            \
101   "addq.ph          %[" #O2 "],   %[" #I1 "],   %[" #I5 "]    \n\t"            \
102   "subq.ph          %[" #O3 "],   %[" #I1 "],   %[" #I5 "]    \n\t"            \
103   "addq.ph          %[" #O4 "],   %[" #I2 "],   %[" #I6 "]    \n\t"            \
104   "subq.ph          %[" #O5 "],   %[" #I2 "],   %[" #I6 "]    \n\t"            \
105   "addq.ph          %[" #O6 "],   %[" #I3 "],   %[" #I7 "]    \n\t"            \
106   "subq.ph          %[" #O7 "],   %[" #I3 "],   %[" #I7 "]    \n\t"            \
107   "shra.ph          %[" #O0 "],   %[" #O0 "],   3             \n\t"            \
108   "shra.ph          %[" #O1 "],   %[" #O1 "],   3             \n\t"            \
109   "shra.ph          %[" #O2 "],   %[" #O2 "],   3             \n\t"            \
110   "shra.ph          %[" #O3 "],   %[" #O3 "],   3             \n\t"            \
111   "shra.ph          %[" #O4 "],   %[" #O4 "],   3             \n\t"            \
112   "shra.ph          %[" #O5 "],   %[" #O5 "],   3             \n\t"            \
113   "shra.ph          %[" #O6 "],   %[" #O6 "],   3             \n\t"            \
114   "shra.ph          %[" #O7 "],   %[" #O7 "],   3             \n\t"
115 
116 // precrq.ph.w temp0, temp8, temp2
117 //   temp0 = temp8[31..16] | temp2[31..16]
118 // ins temp2, temp8, 16, 16
119 //   temp2 = temp8[31..16] | temp2[15..0]
120 // O - output
121 // IO - input/output
122 // I - input (macro doesn't change it)
123 #define PACK_2_HALVES_TO_WORD(O0, O1, O2, O3,                                  \
124                               IO0, IO1, IO2, IO3,                              \
125                               I0, I1, I2, I3)                                  \
126   "precrq.ph.w      %[" #O0 "],    %[" #I0 "],  %[" #IO0 "]       \n\t"        \
127   "precrq.ph.w      %[" #O1 "],    %[" #I1 "],  %[" #IO1 "]       \n\t"        \
128   "ins              %[" #IO0 "],   %[" #I0 "],  16,    16         \n\t"        \
129   "ins              %[" #IO1 "],   %[" #I1 "],  16,    16         \n\t"        \
130   "precrq.ph.w      %[" #O2 "],    %[" #I2 "],  %[" #IO2 "]       \n\t"        \
131   "precrq.ph.w      %[" #O3 "],    %[" #I3 "],  %[" #IO3 "]       \n\t"        \
132   "ins              %[" #IO2 "],   %[" #I2 "],  16,    16         \n\t"        \
133   "ins              %[" #IO3 "],   %[" #I3 "],  16,    16         \n\t"
134 
135 // preceu.ph.qbr temp0, temp8
136 //   temp0 = 0 | 0 | temp8[23..16] | temp8[7..0]
137 // preceu.ph.qbl temp1, temp8
138 //   temp1 = temp8[23..16] | temp8[7..0] | 0 | 0
139 // O - output
140 // I - input (macro doesn't change it)
141 #define CONVERT_2_BYTES_TO_HALF(O0, O1, O2, O3, O4, O5, O6, O7,                \
142                                 I0, I1, I2, I3)                                \
143   "preceu.ph.qbr    %[" #O0 "],   %[" #I0 "]                      \n\t"        \
144   "preceu.ph.qbl    %[" #O1 "],   %[" #I0 "]                      \n\t"        \
145   "preceu.ph.qbr    %[" #O2 "],   %[" #I1 "]                      \n\t"        \
146   "preceu.ph.qbl    %[" #O3 "],   %[" #I1 "]                      \n\t"        \
147   "preceu.ph.qbr    %[" #O4 "],   %[" #I2 "]                      \n\t"        \
148   "preceu.ph.qbl    %[" #O5 "],   %[" #I2 "]                      \n\t"        \
149   "preceu.ph.qbr    %[" #O6 "],   %[" #I3 "]                      \n\t"        \
150   "preceu.ph.qbl    %[" #O7 "],   %[" #I3 "]                      \n\t"
151 
152 // temp0[31..16 | 15..0] = temp0[31..16 | 15..0] + temp8[31..16 | 15..0]
153 // temp0[31..16 | 15..0] = temp0[31..16 <<(s) 7 | 15..0 <<(s) 7]
154 // temp1..temp7 same as temp0
155 // precrqu_s.qb.ph temp0, temp1, temp0:
156 //   temp0 = temp1[31..24] | temp1[15..8] | temp0[31..24] | temp0[15..8]
157 // store temp0 to dst
158 // IO - input/output
159 // I - input (macro doesn't change it)
160 #define STORE_SAT_SUM_X2(IO0, IO1, IO2, IO3, IO4, IO5, IO6, IO7,               \
161                          I0, I1, I2, I3, I4, I5, I6, I7,                       \
162                          I8, I9, I10, I11, I12, I13)                           \
163   "addq.ph          %[" #IO0 "],  %[" #IO0 "],  %[" #I0 "]          \n\t"      \
164   "addq.ph          %[" #IO1 "],  %[" #IO1 "],  %[" #I1 "]          \n\t"      \
165   "addq.ph          %[" #IO2 "],  %[" #IO2 "],  %[" #I2 "]          \n\t"      \
166   "addq.ph          %[" #IO3 "],  %[" #IO3 "],  %[" #I3 "]          \n\t"      \
167   "addq.ph          %[" #IO4 "],  %[" #IO4 "],  %[" #I4 "]          \n\t"      \
168   "addq.ph          %[" #IO5 "],  %[" #IO5 "],  %[" #I5 "]          \n\t"      \
169   "addq.ph          %[" #IO6 "],  %[" #IO6 "],  %[" #I6 "]          \n\t"      \
170   "addq.ph          %[" #IO7 "],  %[" #IO7 "],  %[" #I7 "]          \n\t"      \
171   "shll_s.ph        %[" #IO0 "],  %[" #IO0 "],  7                   \n\t"      \
172   "shll_s.ph        %[" #IO1 "],  %[" #IO1 "],  7                   \n\t"      \
173   "shll_s.ph        %[" #IO2 "],  %[" #IO2 "],  7                   \n\t"      \
174   "shll_s.ph        %[" #IO3 "],  %[" #IO3 "],  7                   \n\t"      \
175   "shll_s.ph        %[" #IO4 "],  %[" #IO4 "],  7                   \n\t"      \
176   "shll_s.ph        %[" #IO5 "],  %[" #IO5 "],  7                   \n\t"      \
177   "shll_s.ph        %[" #IO6 "],  %[" #IO6 "],  7                   \n\t"      \
178   "shll_s.ph        %[" #IO7 "],  %[" #IO7 "],  7                   \n\t"      \
179   "precrqu_s.qb.ph  %[" #IO0 "],  %[" #IO1 "],  %[" #IO0 "]         \n\t"      \
180   "precrqu_s.qb.ph  %[" #IO2 "],  %[" #IO3 "],  %[" #IO2 "]         \n\t"      \
181   "precrqu_s.qb.ph  %[" #IO4 "],  %[" #IO5 "],  %[" #IO4 "]         \n\t"      \
182   "precrqu_s.qb.ph  %[" #IO6 "],  %[" #IO7 "],  %[" #IO6 "]         \n\t"      \
183   "usw              %[" #IO0 "],  " XSTR(I13) "*" #I9 "(%[" #I8 "])   \n\t"    \
184   "usw              %[" #IO2 "],  " XSTR(I13) "*" #I10 "(%[" #I8 "])  \n\t"    \
185   "usw              %[" #IO4 "],  " XSTR(I13) "*" #I11 "(%[" #I8 "])  \n\t"    \
186   "usw              %[" #IO6 "],  " XSTR(I13) "*" #I12 "(%[" #I8 "])  \n\t"
187 
188 #define OUTPUT_EARLY_CLOBBER_REGS_10()                                         \
189   : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),             \
190     [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [temp6]"=&r"(temp6),             \
191     [temp7]"=&r"(temp7), [temp8]"=&r"(temp8), [temp9]"=&r"(temp9),             \
192     [temp10]"=&r"(temp10)
193 
194 #define OUTPUT_EARLY_CLOBBER_REGS_18()                                         \
195   OUTPUT_EARLY_CLOBBER_REGS_10(),                                              \
196   [temp11]"=&r"(temp11), [temp12]"=&r"(temp12), [temp13]"=&r"(temp13),         \
197   [temp14]"=&r"(temp14), [temp15]"=&r"(temp15), [temp16]"=&r"(temp16),         \
198   [temp17]"=&r"(temp17), [temp18]"=&r"(temp18)
199 
200 #endif  // WEBP_DSP_MIPS_MACRO_H_
201