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1 | #define PERL_NO_GET_CONTEXT | |
2 | #include "EXTERN.h" | |
3 | #include "perl.h" | |
4 | #include "XSUB.h" | |
5 | ||
6 | #include "ppport.h" | |
7 | ||
8 | #include <brotli/decode.h> | |
9 | #include <brotli/encode.h> | |
10 | ||
11 | #define BUFFER_SIZE 1048576 | |
12 | ||
13 | typedef struct brotli_decoder { | |
14 | BrotliDecoderState *decoder; | |
15 | }* IO__Uncompress__Brotli; | |
16 | ||
17 | typedef struct brotli_encoder { | |
18 | BrotliEncoderState *encoder; | |
19 | }* IO__Compress__Brotli; | |
20 | ||
21 | ||
22 | MODULE = IO::Compress::Brotli PACKAGE = IO::Uncompress::Brotli | |
23 | PROTOTYPES: ENABLE | |
24 | ||
25 | SV* | |
26 | unbro(buffer, decoded_size) | |
27 | SV* buffer | |
28 | size_t decoded_size | |
29 | PREINIT: | |
30 | STRLEN encoded_size; | |
31 | uint8_t *encoded_buffer, *decoded_buffer; | |
32 | CODE: | |
33 | encoded_buffer = (uint8_t*) SvPV(buffer, encoded_size); | |
34 | Newx(decoded_buffer, decoded_size, uint8_t); | |
35 | if(!BrotliDecoderDecompress(encoded_size, encoded_buffer, &decoded_size, decoded_buffer)){ | |
36 | croak("Error in BrotliDecoderDecompress"); | |
37 | } | |
38 | RETVAL = newSV(0); | |
39 | sv_usepvn(RETVAL, decoded_buffer, decoded_size); | |
40 | OUTPUT: | |
41 | RETVAL | |
42 | ||
43 | IO::Uncompress::Brotli | |
44 | create(class) | |
45 | SV* class | |
46 | CODE: | |
47 | Newx(RETVAL, 1, struct brotli_decoder); | |
48 | RETVAL->decoder = BrotliDecoderCreateInstance(NULL, NULL, NULL); | |
49 | OUTPUT: | |
50 | RETVAL | |
51 | ||
52 | void | |
53 | DESTROY(self) | |
54 | IO::Uncompress::Brotli self | |
55 | CODE: | |
56 | BrotliDecoderDestroyInstance(self->decoder); | |
57 | Safefree(self); | |
58 | ||
59 | SV* | |
60 | decompress(self, in) | |
61 | IO::Uncompress::Brotli self | |
62 | SV* in | |
63 | PREINIT: | |
64 | uint8_t *next_in, *next_out, *buffer; | |
65 | size_t available_in, available_out; | |
66 | BrotliDecoderResult result; | |
67 | CODE: | |
68 | next_in = (uint8_t*) SvPV(in, available_in); | |
69 | Newx(buffer, BUFFER_SIZE, uint8_t); | |
70 | RETVAL = newSVpv("", 0); | |
71 | result = BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT; | |
72 | while(result == BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT) { | |
73 | next_out = buffer; | |
74 | available_out=BUFFER_SIZE; | |
75 | result = BrotliDecoderDecompressStream( self->decoder, | |
76 | &available_in, | |
77 | (const uint8_t**) &next_in, | |
78 | &available_out, | |
79 | &next_out, | |
80 | NULL ); | |
81 | if(!result){ | |
82 | Safefree(buffer); | |
83 | croak("Error in BrotliDecoderDecompressStream"); | |
84 | } | |
85 | sv_catpvn(RETVAL, (const char*)buffer, BUFFER_SIZE-available_out); | |
86 | } | |
87 | Safefree(buffer); | |
88 | OUTPUT: | |
89 | RETVAL | |
90 | ||
91 | void | |
92 | set_dictionary(self, dict) | |
93 | IO::Uncompress::Brotli self | |
94 | SV* dict | |
95 | PREINIT: | |
96 | size_t size; | |
97 | uint8_t *data; | |
98 | CODE: | |
99 | data = SvPV(dict, size); | |
100 | BrotliDecoderSetCustomDictionary(self->decoder, size, data); | |
101 | ||
102 | ||
103 | MODULE = IO::Compress::Brotli PACKAGE = IO::Compress::Brotli | |
104 | PROTOTYPES: ENABLE | |
105 | ||
106 | SV* | |
107 | bro(buffer, quality=BROTLI_DEFAULT_QUALITY, lgwin=BROTLI_DEFAULT_WINDOW) | |
108 | SV* buffer | |
109 | U32 quality | |
110 | U32 lgwin | |
111 | PREINIT: | |
112 | size_t encoded_size; | |
113 | STRLEN decoded_size; | |
114 | uint8_t *encoded_buffer, *decoded_buffer; | |
115 | BROTLI_BOOL result; | |
116 | CODE: | |
117 | if( quality < BROTLI_MIN_QUALITY || quality > BROTLI_MAX_QUALITY ) { | |
118 | croak("Invalid quality value"); | |
119 | } | |
120 | if( lgwin < BROTLI_MIN_WINDOW_BITS || lgwin > BROTLI_MAX_WINDOW_BITS ) { | |
121 | croak("Invalid window value"); | |
122 | } | |
123 | decoded_buffer = (uint8_t*) SvPV(buffer, decoded_size); | |
124 | encoded_size = BrotliEncoderMaxCompressedSize(decoded_size); | |
125 | if(!encoded_size){ | |
126 | croak("Compressed size overflow"); | |
127 | } | |
128 | Newx(encoded_buffer, encoded_size+1, uint8_t); | |
129 | result = BrotliEncoderCompress( quality, | |
130 | lgwin, | |
131 | BROTLI_DEFAULT_MODE, | |
132 | decoded_size, | |
133 | decoded_buffer, | |
134 | &encoded_size, | |
135 | encoded_buffer ); | |
136 | if(!result){ | |
137 | Safefree(buffer); | |
138 | croak("Error in BrotliEncoderCompress"); | |
139 | } | |
140 | encoded_buffer[encoded_size]=0; | |
141 | RETVAL = newSV(0); | |
142 | sv_usepvn_flags(RETVAL, encoded_buffer, encoded_size, SV_SMAGIC | SV_HAS_TRAILING_NUL); | |
143 | OUTPUT: | |
144 | RETVAL | |
145 | ||
146 | IO::Compress::Brotli | |
147 | create(class) | |
148 | SV* class | |
149 | CODE: | |
150 | Newx(RETVAL, 1, struct brotli_encoder); | |
151 | RETVAL->encoder = BrotliEncoderCreateInstance(NULL, NULL, NULL); | |
152 | OUTPUT: | |
153 | RETVAL | |
154 | ||
155 | bool BrotliEncoderSetParameter(self, value) | |
156 | IO::Compress::Brotli self | |
157 | U32 value | |
158 | ALIAS: | |
159 | window = 1 | |
160 | quality = 2 | |
161 | _mode = 3 | |
162 | PREINIT: | |
163 | BrotliEncoderParameter param; | |
164 | INIT: | |
165 | switch(ix){ | |
166 | case 0: | |
167 | croak("BrotliEncoderSetParameter may not be called directly"); | |
168 | break; | |
169 | case 1: | |
170 | if( value < BROTLI_MIN_WINDOW_BITS || value > BROTLI_MAX_WINDOW_BITS ) { | |
171 | croak("Invalid window value"); | |
172 | } | |
173 | param = BROTLI_PARAM_LGWIN; | |
174 | break; | |
175 | case 2: | |
176 | if( value < BROTLI_MIN_QUALITY || value > BROTLI_MAX_QUALITY ) { | |
177 | croak("Invalid quality value"); | |
178 | } | |
179 | param = BROTLI_PARAM_QUALITY; | |
180 | break; | |
181 | case 3: | |
182 | /* Validation done on Perl side */ | |
183 | param = BROTLI_PARAM_MODE; | |
184 | break; | |
185 | default: | |
186 | croak("Impossible ix in BrotliEncoderSetParameter"); | |
187 | break; | |
188 | } | |
189 | C_ARGS: | |
190 | self->encoder, param, value | |
191 | ||
192 | SV* | |
193 | _compress(self, in = &PL_sv_undef) | |
194 | IO::Compress::Brotli self | |
195 | SV* in | |
196 | ALIAS: | |
197 | compress = 1 | |
198 | flush = 2 | |
199 | finish = 3 | |
200 | PREINIT: | |
201 | uint8_t *next_in, *next_out, *buffer; | |
202 | size_t available_in, available_out; | |
203 | BROTLI_BOOL result; | |
204 | BrotliEncoderOperation op; | |
205 | CODE: | |
206 | switch(ix) { | |
207 | case 0: | |
208 | croak("_compress may not be called directly"); | |
209 | break; | |
210 | case 1: | |
211 | op = BROTLI_OPERATION_PROCESS; | |
212 | break; | |
213 | case 2: | |
214 | op = BROTLI_OPERATION_FLUSH; | |
215 | break; | |
216 | case 3: | |
217 | op = BROTLI_OPERATION_FINISH; | |
218 | break; | |
219 | default: | |
220 | croak("Impossible ix in _compress"); | |
221 | break; | |
222 | } | |
223 | ||
224 | Newx(buffer, BUFFER_SIZE, uint8_t); | |
225 | if(in == &PL_sv_undef) | |
226 | next_in = (uint8_t*) buffer, available_in = 0; | |
227 | else | |
228 | next_in = (uint8_t*) SvPV(in, available_in); | |
229 | RETVAL = newSVpv("", 0); | |
230 | while(1) { | |
231 | next_out = buffer; | |
232 | available_out = BUFFER_SIZE; | |
233 | result = BrotliEncoderCompressStream( self->encoder, | |
234 | (BrotliEncoderOperation) op, | |
235 | &available_in, | |
236 | (const uint8_t**) &next_in, | |
237 | &available_out, | |
238 | &next_out, | |
239 | NULL ); | |
240 | if(!result) { | |
241 | Safefree(buffer); | |
242 | croak("Error in BrotliEncoderCompressStream"); | |
243 | } | |
244 | ||
245 | if( available_out != BUFFER_SIZE ) { | |
246 | sv_catpvn(RETVAL, (const char*)buffer, BUFFER_SIZE-available_out); | |
247 | } | |
248 | ||
249 | if( | |
250 | BrotliEncoderIsFinished(self->encoder) || | |
251 | (!available_in && !BrotliEncoderHasMoreOutput(self->encoder)) | |
252 | ) break; | |
253 | } | |
254 | Safefree(buffer); | |
255 | OUTPUT: | |
256 | RETVAL | |
257 | ||
258 | void | |
259 | DESTROY(self) | |
260 | IO::Compress::Brotli self | |
261 | CODE: | |
262 | BrotliEncoderDestroyInstance(self->encoder); | |
263 | Safefree(self); | |
264 | ||
265 | void | |
266 | set_dictionary(self, dict) | |
267 | IO::Compress::Brotli self | |
268 | SV* dict | |
269 | PREINIT: | |
270 | size_t size; | |
271 | uint8_t *data; | |
272 | CODE: | |
273 | data = SvPV(dict, size); | |
274 | BrotliEncoderSetCustomDictionary(self->encoder, size, data); |