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1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2016 Aurelien Jacobs <aurel@gnuage.org> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | %define DOCSTRING | |
21 | " | |
22 | = Introduction | |
23 | ||
24 | The sigrok Ruby API provides an object-oriented Ruby interface to the | |
25 | functionality in libsigrok. It is built on top of the libsigrokcxx C++ API. | |
26 | ||
27 | = Getting started | |
28 | ||
29 | Usage of the sigrok Ruby API needs to begin with a call to Context.create(). | |
30 | This will create the global libsigrok context and returns a Context object. | |
31 | Methods on this object provide access to the hardware drivers, input and output | |
32 | formats supported by the library, as well as means of creating other objects | |
33 | such as sessions and triggers. | |
34 | ||
35 | = Error handling | |
36 | ||
37 | When any libsigrok C API call returns an error, an Error exception is raised, | |
38 | which provides access to the error code and description." | |
39 | %enddef | |
40 | ||
41 | %module(docstring=DOCSTRING) sigrok | |
42 | ||
43 | %{ | |
90cc5226 GS |
44 | #include "config.h" |
45 | ||
27d44cf6 AJ |
46 | #include <stdio.h> |
47 | #include <glibmm.h> | |
27d44cf6 AJ |
48 | %} |
49 | ||
50 | %include "../swig/templates.i" | |
51 | ||
52 | %{ | |
53 | static const char *string_from_ruby(VALUE obj) | |
54 | { | |
55 | switch (TYPE(obj)) { | |
56 | case T_STRING: | |
57 | return StringValueCStr(obj); | |
58 | case T_SYMBOL: | |
59 | return rb_id2name(SYM2ID(obj)); | |
60 | default: | |
61 | throw sigrok::Error(SR_ERR_ARG); | |
62 | } | |
63 | } | |
64 | ||
65 | /* Convert from Glib::Variant to native Ruby types. */ | |
66 | static VALUE variant_to_ruby(Glib::VariantBase variant) | |
67 | { | |
68 | if (variant.is_of_type(Glib::VARIANT_TYPE_BOOL)) { | |
69 | return Glib::VariantBase::cast_dynamic< Glib::Variant<bool> >(variant).get() ? Qtrue : Qfalse; | |
70 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_BYTE)) { | |
71 | return UINT2NUM(Glib::VariantBase::cast_dynamic< Glib::Variant<unsigned char> >(variant).get()); | |
72 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_INT16)) { | |
73 | return INT2NUM(Glib::VariantBase::cast_dynamic< Glib::Variant<gint16> >(variant).get()); | |
74 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_UINT16)) { | |
75 | return UINT2NUM(Glib::VariantBase::cast_dynamic< Glib::Variant<guint16> >(variant).get()); | |
76 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_INT32)) { | |
77 | return INT2NUM(Glib::VariantBase::cast_dynamic< Glib::Variant<gint32> >(variant).get()); | |
78 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_UINT32)) { | |
79 | return UINT2NUM(Glib::VariantBase::cast_dynamic< Glib::Variant<guint32> >(variant).get()); | |
80 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_INT64)) { | |
81 | return LL2NUM(Glib::VariantBase::cast_dynamic< Glib::Variant<gint64> >(variant).get()); | |
82 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_UINT64)) { | |
83 | return ULL2NUM(Glib::VariantBase::cast_dynamic< Glib::Variant<guint64> >(variant).get()); | |
84 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_DOUBLE)) { | |
85 | return DBL2NUM(Glib::VariantBase::cast_dynamic< Glib::Variant<double> >(variant).get()); | |
86 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_STRING)) { | |
87 | auto str = Glib::VariantBase::cast_dynamic< Glib::Variant<std::string> >(variant).get(); | |
88 | return rb_str_new(str.c_str(), str.length()); | |
89 | } else if (variant.is_of_type(Glib::VARIANT_TYPE_VARIANT)) { | |
90 | auto var = Glib::VariantBase::cast_dynamic< Glib::Variant<Glib::VariantBase> >(variant).get(); | |
91 | return variant_to_ruby(var); | |
92 | } else if (variant.is_container()) { | |
93 | Glib::VariantContainerBase container = Glib::VariantBase::cast_dynamic< Glib::VariantContainerBase > (variant); | |
94 | gsize count = container.get_n_children(); | |
95 | if (container.is_of_type(Glib::VARIANT_TYPE_DICTIONARY)) { | |
96 | VALUE hash = rb_hash_new(); | |
97 | for (gsize i = 0; i < count; i++) { | |
98 | Glib::VariantContainerBase entry = Glib::VariantBase::cast_dynamic< Glib::VariantContainerBase > (container.get_child(i)); | |
99 | VALUE key = variant_to_ruby(entry.get_child(0)); | |
100 | VALUE val = variant_to_ruby(entry.get_child(1)); | |
101 | rb_hash_aset(hash, key, val); | |
102 | } | |
103 | return hash; | |
104 | } else if (container.is_of_type(Glib::VARIANT_TYPE_ARRAY) || | |
105 | container.is_of_type(Glib::VARIANT_TYPE_TUPLE)) { | |
106 | VALUE array = rb_ary_new2(count); | |
107 | for (gsize i = 0; i < count; i++) { | |
108 | VALUE val = variant_to_ruby(container.get_child(i)); | |
109 | rb_ary_store(array, i, val); | |
110 | } | |
111 | return array; | |
112 | } | |
113 | } else { | |
114 | SWIG_exception(SWIG_TypeError, ("TODO: GVariant(" + variant.get_type().get_string() + ") -> Ruby").c_str()); | |
115 | } | |
63248050 | 116 | return 0; /* Dummy, to avoid a compiler warning. */ |
27d44cf6 AJ |
117 | } |
118 | %} | |
119 | ||
120 | /* Map from Glib::Variant to native Ruby types. */ | |
121 | %typemap(out) Glib::VariantBase { | |
122 | $result = variant_to_ruby($1); | |
123 | } | |
124 | ||
125 | /* Map from Glib::VariantContainer to native Ruby types. */ | |
126 | %typemap(out) Glib::VariantContainerBase { | |
127 | $result = variant_to_ruby($1); | |
128 | } | |
129 | ||
130 | /* Map from callable Ruby Proc to LogCallbackFunction */ | |
131 | %typemap(in) sigrok::LogCallbackFunction { | |
132 | if (!rb_obj_is_proc($input)) | |
133 | SWIG_exception(SWIG_TypeError, "Expected a callable Ruby object"); | |
134 | ||
135 | std::shared_ptr<VALUE> proc(new VALUE($input), rb_gc_unregister_address); | |
136 | rb_gc_register_address(proc.get()); | |
137 | ||
138 | $1 = [=] (const sigrok::LogLevel *loglevel, std::string message) { | |
139 | VALUE log_obj = SWIG_NewPointerObj( | |
140 | SWIG_as_voidptr(loglevel), SWIGTYPE_p_sigrok__LogLevel, 0); | |
141 | ||
142 | VALUE string_obj = rb_external_str_new_with_enc(message.c_str(), message.length(), rb_utf8_encoding()); | |
143 | ||
f504779c | 144 | VALUE args = rb_ary_new3(2, log_obj, string_obj); |
27d44cf6 AJ |
145 | rb_proc_call(*proc.get(), args); |
146 | }; | |
147 | } | |
148 | ||
149 | /* Map from callable Ruby Proc to SessionStoppedCallback */ | |
150 | %typemap(in) sigrok::SessionStoppedCallback { | |
151 | if (!rb_obj_is_proc($input)) | |
152 | SWIG_exception(SWIG_TypeError, "Expected a callable Ruby object"); | |
153 | ||
154 | std::shared_ptr<VALUE> proc(new VALUE($input), rb_gc_unregister_address); | |
155 | rb_gc_register_address(proc.get()); | |
156 | ||
157 | $1 = [=] () { | |
158 | rb_proc_call(*proc.get(), rb_ary_new()); | |
159 | }; | |
160 | } | |
161 | ||
162 | /* Map from callable Ruby Proc to DatafeedCallbackFunction */ | |
163 | %typemap(in) sigrok::DatafeedCallbackFunction { | |
164 | if (!rb_obj_is_proc($input)) | |
165 | SWIG_exception(SWIG_TypeError, "Expected a callable Ruby object"); | |
166 | ||
167 | std::shared_ptr<VALUE> proc(new VALUE($input), rb_gc_unregister_address); | |
168 | rb_gc_register_address(proc.get()); | |
169 | ||
170 | $1 = [=] (std::shared_ptr<sigrok::Device> device, | |
171 | std::shared_ptr<sigrok::Packet> packet) { | |
172 | VALUE device_obj = SWIG_NewPointerObj( | |
173 | SWIG_as_voidptr(new std::shared_ptr<sigrok::Device>(device)), | |
174 | SWIGTYPE_p_std__shared_ptrT_sigrok__Device_t, SWIG_POINTER_OWN); | |
175 | ||
176 | VALUE packet_obj = SWIG_NewPointerObj( | |
177 | SWIG_as_voidptr(new std::shared_ptr<sigrok::Packet>(packet)), | |
178 | SWIGTYPE_p_std__shared_ptrT_sigrok__Packet_t, SWIG_POINTER_OWN); | |
179 | ||
f504779c | 180 | VALUE args = rb_ary_new3(2, device_obj, packet_obj); |
27d44cf6 AJ |
181 | rb_proc_call(*proc.get(), args); |
182 | }; | |
183 | } | |
184 | ||
185 | /* Cast PacketPayload pointers to correct subclass type. */ | |
186 | %ignore sigrok::Packet::payload; | |
187 | %rename sigrok::Packet::_payload payload; | |
188 | %extend sigrok::Packet | |
189 | { | |
190 | VALUE _payload() | |
191 | { | |
192 | if ($self->type() == sigrok::PacketType::HEADER) { | |
193 | return SWIG_NewPointerObj( | |
194 | SWIG_as_voidptr(new std::shared_ptr<sigrok::Header>(dynamic_pointer_cast<sigrok::Header>($self->payload()))), | |
195 | SWIGTYPE_p_std__shared_ptrT_sigrok__Header_t, SWIG_POINTER_OWN); | |
196 | } else if ($self->type() == sigrok::PacketType::META) { | |
197 | return SWIG_NewPointerObj( | |
198 | SWIG_as_voidptr(new std::shared_ptr<sigrok::Meta>(dynamic_pointer_cast<sigrok::Meta>($self->payload()))), | |
199 | SWIGTYPE_p_std__shared_ptrT_sigrok__Meta_t, SWIG_POINTER_OWN); | |
200 | } else if ($self->type() == sigrok::PacketType::ANALOG) { | |
201 | return SWIG_NewPointerObj( | |
202 | SWIG_as_voidptr(new std::shared_ptr<sigrok::Analog>(dynamic_pointer_cast<sigrok::Analog>($self->payload()))), | |
203 | SWIGTYPE_p_std__shared_ptrT_sigrok__Analog_t, SWIG_POINTER_OWN); | |
204 | } else if ($self->type() == sigrok::PacketType::LOGIC) { | |
205 | return SWIG_NewPointerObj( | |
206 | SWIG_as_voidptr(new std::shared_ptr<sigrok::Logic>(dynamic_pointer_cast<sigrok::Logic>($self->payload()))), | |
207 | SWIGTYPE_p_std__shared_ptrT_sigrok__Logic_t, SWIG_POINTER_OWN); | |
208 | } else { | |
209 | return Qnil; | |
210 | } | |
211 | } | |
212 | } | |
213 | ||
214 | %{ | |
215 | ||
216 | #include "libsigrokcxx/libsigrokcxx.hpp" | |
217 | ||
218 | /* Convert from a Ruby type to Glib::Variant, according to config key data type. */ | |
219 | Glib::VariantBase ruby_to_variant_by_key(VALUE input, const sigrok::ConfigKey *key) | |
220 | { | |
221 | enum sr_datatype type = (enum sr_datatype) key->data_type()->id(); | |
222 | ||
223 | if (type == SR_T_UINT64 && RB_TYPE_P(input, T_FIXNUM)) | |
224 | return Glib::Variant<guint64>::create(NUM2ULL(input)); | |
225 | if (type == SR_T_UINT64 && RB_TYPE_P(input, T_BIGNUM)) | |
226 | return Glib::Variant<guint64>::create(NUM2ULL(input)); | |
227 | else if (type == SR_T_STRING && RB_TYPE_P(input, T_STRING)) | |
228 | return Glib::Variant<Glib::ustring>::create(string_from_ruby(input)); | |
229 | else if (type == SR_T_STRING && RB_TYPE_P(input, T_SYMBOL)) | |
230 | return Glib::Variant<Glib::ustring>::create(string_from_ruby(input)); | |
231 | else if (type == SR_T_BOOL && RB_TYPE_P(input, T_TRUE)) | |
232 | return Glib::Variant<bool>::create(true); | |
233 | else if (type == SR_T_BOOL && RB_TYPE_P(input, T_FALSE)) | |
234 | return Glib::Variant<bool>::create(false); | |
235 | else if (type == SR_T_FLOAT && RB_TYPE_P(input, T_FLOAT)) | |
236 | return Glib::Variant<double>::create(RFLOAT_VALUE(input)); | |
237 | else if (type == SR_T_INT32 && RB_TYPE_P(input, T_FIXNUM)) | |
238 | return Glib::Variant<gint32>::create(NUM2INT(input)); | |
239 | else | |
240 | throw sigrok::Error(SR_ERR_ARG); | |
241 | } | |
242 | ||
243 | /* Convert from a Ruby type to Glib::Variant, according to Option data type. */ | |
244 | Glib::VariantBase ruby_to_variant_by_option(VALUE input, std::shared_ptr<sigrok::Option> option) | |
245 | { | |
246 | Glib::VariantBase variant = option->default_value(); | |
247 | ||
248 | if (variant.is_of_type(Glib::VARIANT_TYPE_UINT64) && RB_TYPE_P(input, T_FIXNUM)) | |
249 | return Glib::Variant<guint64>::create(NUM2ULL(input)); | |
250 | else if (variant.is_of_type(Glib::VARIANT_TYPE_UINT64) && RB_TYPE_P(input, T_BIGNUM)) | |
251 | return Glib::Variant<guint64>::create(NUM2ULL(input)); | |
252 | else if (variant.is_of_type(Glib::VARIANT_TYPE_STRING) && RB_TYPE_P(input, T_STRING)) | |
253 | return Glib::Variant<Glib::ustring>::create(string_from_ruby(input)); | |
254 | else if (variant.is_of_type(Glib::VARIANT_TYPE_STRING) && RB_TYPE_P(input, T_SYMBOL)) | |
255 | return Glib::Variant<Glib::ustring>::create(string_from_ruby(input)); | |
256 | else if (variant.is_of_type(Glib::VARIANT_TYPE_BOOL) && RB_TYPE_P(input, T_TRUE)) | |
257 | return Glib::Variant<bool>::create(true); | |
258 | else if (variant.is_of_type(Glib::VARIANT_TYPE_BOOL) && RB_TYPE_P(input, T_FALSE)) | |
259 | return Glib::Variant<bool>::create(false); | |
260 | else if (variant.is_of_type(Glib::VARIANT_TYPE_DOUBLE) && RB_TYPE_P(input, T_FLOAT)) | |
261 | return Glib::Variant<double>::create(RFLOAT_VALUE(input)); | |
262 | else if (variant.is_of_type(Glib::VARIANT_TYPE_INT32) && RB_TYPE_P(input, T_FIXNUM)) | |
263 | return Glib::Variant<gint32>::create(NUM2INT(input)); | |
264 | else | |
265 | throw sigrok::Error(SR_ERR_ARG); | |
266 | } | |
267 | ||
268 | struct hash_to_map_options_params { | |
269 | std::map<std::string, std::shared_ptr<sigrok::Option> > options; | |
270 | std::map<std::string, Glib::VariantBase> output; | |
271 | }; | |
272 | ||
273 | int convert_option(VALUE key, VALUE val, VALUE in) { | |
274 | struct hash_to_map_options_params *params; | |
275 | params = (struct hash_to_map_options_params *)in; | |
276 | ||
277 | auto k = string_from_ruby(key); | |
278 | auto v = ruby_to_variant_by_option(val, params->options[k]); | |
279 | params->output[k] = v; | |
280 | ||
281 | return ST_CONTINUE; | |
282 | } | |
283 | ||
284 | /* Convert from a Ruby hash to a std::map<std::string, Glib::VariantBase> */ | |
285 | std::map<std::string, Glib::VariantBase> hash_to_map_options(VALUE hash, | |
286 | std::map<std::string, std::shared_ptr<sigrok::Option> > options) | |
287 | { | |
288 | if (!RB_TYPE_P(hash, T_HASH)) | |
289 | throw sigrok::Error(SR_ERR_ARG); | |
290 | ||
291 | struct hash_to_map_options_params params = { options }; | |
292 | rb_hash_foreach(hash, (int (*)(ANYARGS))convert_option, (VALUE)¶ms); | |
293 | ||
294 | return params.output; | |
295 | } | |
296 | ||
297 | int convert_option_by_key(VALUE key, VALUE val, VALUE in) { | |
298 | std::map<const sigrok::ConfigKey *, Glib::VariantBase> *options; | |
299 | options = (std::map<const sigrok::ConfigKey *, Glib::VariantBase> *)in; | |
300 | ||
301 | auto k = sigrok::ConfigKey::get_by_identifier(string_from_ruby(key)); | |
302 | auto v = ruby_to_variant_by_key(val, k); | |
303 | (*options)[k] = v; | |
304 | ||
305 | return ST_CONTINUE; | |
306 | } | |
307 | ||
308 | %} | |
309 | ||
310 | /* Ignore these methods, we will override them below. */ | |
311 | %ignore sigrok::Analog::data; | |
312 | %ignore sigrok::Driver::scan; | |
313 | %ignore sigrok::Input::send; | |
314 | %ignore sigrok::InputFormat::create_input; | |
315 | %ignore sigrok::OutputFormat::create_output; | |
316 | ||
317 | %include "doc.i" | |
318 | ||
319 | %define %attributevector(Class, Type, Name, Get) | |
320 | %alias sigrok::Class::_ ## Get #Name; | |
321 | %enddef | |
322 | ||
323 | %define %attributemap(Class, Type, Name, Get) | |
324 | %alias sigrok::Class::_ ## Get #Name; | |
325 | %enddef | |
326 | ||
327 | %define %enumextras(Class) | |
328 | %extend sigrok::Class | |
329 | { | |
330 | VALUE to_s() | |
331 | { | |
332 | std::string str = $self->name(); | |
333 | return rb_external_str_new_with_enc(str.c_str(), str.length(), rb_utf8_encoding()); | |
334 | } | |
335 | ||
336 | bool operator==(void *other) | |
337 | { | |
338 | return (long) $self == (long) other; | |
339 | } | |
340 | } | |
341 | %enddef | |
342 | ||
343 | %include "../swig/classes.i" | |
344 | ||
345 | /* Replace the original Driver.scan with a keyword arguments version. */ | |
346 | %rename sigrok::Driver::_scan scan; | |
347 | %extend sigrok::Driver | |
348 | { | |
349 | std::vector<std::shared_ptr<sigrok::HardwareDevice> > _scan(VALUE kwargs = rb_hash_new()) | |
350 | { | |
351 | if (!RB_TYPE_P(kwargs, T_HASH)) | |
352 | throw sigrok::Error(SR_ERR_ARG); | |
353 | ||
354 | std::map<const sigrok::ConfigKey *, Glib::VariantBase> options; | |
355 | rb_hash_foreach(kwargs, (int (*)(ANYARGS))convert_option_by_key, (VALUE)&options); | |
356 | ||
357 | return $self->scan(options); | |
358 | } | |
359 | } | |
360 | ||
361 | /* Support Input.send() with string argument. */ | |
362 | %rename sigrok::Input::_send send; | |
363 | %extend sigrok::Input | |
364 | { | |
365 | void _send(VALUE data) | |
366 | { | |
367 | data = StringValue(data); | |
368 | return $self->send(RSTRING_PTR(data), RSTRING_LEN(data)); | |
369 | } | |
370 | } | |
371 | ||
372 | /* Support InputFormat.create_input() with keyword arguments. */ | |
373 | %rename sigrok::InputFormat::_create_input create_input; | |
374 | %extend sigrok::InputFormat | |
375 | { | |
376 | std::shared_ptr<sigrok::Input> _create_input(VALUE hash = rb_hash_new()) | |
377 | { | |
378 | return $self->create_input(hash_to_map_options(hash, $self->options())); | |
379 | } | |
380 | } | |
381 | ||
382 | /* Support OutputFormat.create_output() with keyword arguments. */ | |
383 | %rename sigrok::OutputFormat::_create_output create_output; | |
384 | %extend sigrok::OutputFormat | |
385 | { | |
386 | std::shared_ptr<sigrok::Output> _create_output( | |
387 | std::shared_ptr<sigrok::Device> device, VALUE hash = rb_hash_new()) | |
388 | { | |
389 | return $self->create_output(device, | |
390 | hash_to_map_options(hash, $self->options())); | |
391 | } | |
392 | ||
393 | std::shared_ptr<sigrok::Output> _create_output(string filename, | |
394 | std::shared_ptr<sigrok::Device> device, VALUE hash = rb_hash_new()) | |
395 | { | |
396 | return $self->create_output(filename, device, | |
397 | hash_to_map_options(hash, $self->options())); | |
398 | } | |
399 | } | |
400 | ||
401 | /* Support config_set() with Ruby input types. */ | |
402 | %extend sigrok::Configurable | |
403 | { | |
404 | void config_set(const ConfigKey *key, VALUE input) | |
405 | { | |
406 | $self->config_set(key, ruby_to_variant_by_key(input, key)); | |
407 | } | |
408 | } | |
409 | ||
410 | /* Return Ruby array from Analog::data(). */ | |
411 | %rename sigrok::Analog::_data data; | |
412 | %extend sigrok::Analog | |
413 | { | |
414 | VALUE _data() | |
415 | { | |
416 | int num_channels = $self->channels().size(); | |
417 | int num_samples = $self->num_samples(); | |
418 | float *data = (float *) $self->data_pointer(); | |
419 | VALUE channels = rb_ary_new2(num_channels); | |
420 | for(int i = 0; i < num_channels; i++) { | |
421 | VALUE samples = rb_ary_new2(num_samples); | |
422 | for (int j = 0; j < num_samples; j++) { | |
423 | rb_ary_store(samples, j, DBL2NUM(data[i*num_samples+j])); | |
424 | } | |
425 | rb_ary_store(channels, i, samples); | |
426 | } | |
427 | return channels; | |
428 | } | |
429 | } |