3 AVM2 Utility Actionscripts
5 Extension module for the rfxswf library.
6 Part of the swftools package.
8 Copyright (c) 2007 Alessandro Molina
9 Copyright (c) 2007,2008 Matthias Kramm <kramm@quiss.org>
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
26 #include "../rfxswf.h"
28 static unsigned AVM2_uint32toU30(unsigned val, char * out)
33 out[len++] = (val&~0x7f?0x80:0) | (val & 0x7F);
40 void AVM2_InsertStops(SWF*swf)
45 unsigned frame_nums = 0;
47 /* Count number of pages to set up stop callback for every frame */
50 if (t->id == ST_SHOWFRAME) ++frame_nums;
54 TAG * classCall = swf_InsertTagBefore(swf, swf->firstTag, ST_SYMBOLCLASS);
55 swf_SetU16(classCall, 1); // number of symbols
56 swf_SetU16(classCall, 0); // object id
57 swf_SetString(classCall, "stop_fla:MainTimeline"); // class to associate with the symbol
59 //0x52 is the Flash9 equivalent to DoAction
60 char init_pool[322] = {
61 0x01,0x00,0x00,0x00, /* Flag Parameter to ST_DOABC (1 = lazy load)*/
62 0x00, /* 0 terminated class name */
63 0x10,0x00,0x2e,0x00, /* ABC file magic number (minor version, major version) */
64 0x00, /* zero integers */
65 0x00, /* zero unsigned integers */
66 0x00, /* zero doubles */
68 0x11, /* 16 strings (+1) */
69 0x08, 's','t','o','p','_','f','l','a',
70 0x0c, 'M','a','i','n','T','i','m','e','l','i','n','e',
71 0x0d, 'f','l','a','s','h','.','d','i','s','p','l','a','y',
72 0x09, 'M','o','v','i','e','C','l','i','p',
73 0x15, 's','t','o','p','_','f','l','a',':','M','a','i','n','T','i','m','e','l','i','n','e',
74 0x06, 'd','o','s','t','o','p',
75 0x00, // Empty string: ref. to the global namespace
76 0x04, 's','t','o','p',
77 0x0e, 'a','d','d','F','r','a','m','e','S','c','r','i','p','t',
78 0x06, 'O','b','j','e','c','t',
79 0x0c, 'f','l','a','s','h','.','e','v','e','n','t','s',
80 0x0f, 'E','v','e','n','t','D','i','s','p','a','t','c','h','e','r',
81 0x0d, 'D','i','s','p','l','a','y','O','b','j','e','c','t',
82 0x11, 'I','n','t','e','r','a','c','t','i','v','e','O','b','j','e','c','t',
83 0x16, 'D','i','s','p','l','a','y','O','b','j','e','c','t','C','o','n','t','a','i','n','e','r',
84 0x06, 'S','p','r','i','t','e',
86 0x07, /* 6 namespaces (+1) */
87 0x16,0x01, /* kind: CONSTANT_PackageNamespace, ref. to: stop_fla */
88 0x16,0x03, /* kind: CONSTANT_PackageNamespace, ref. to: flash.display */
89 0x18,0x05, /* kind: CONSTANT_ProtectedNamespace, ref. to: stop_fla:MainTimeline */
90 0x17,0x01, /* kind: CONSTANT_PackageInternalNs, ref. to: MainTimeline */
91 0x16,0x07, /* kind: CONSTANT_PackageNamespace, ref. to the global namespace */
92 0x16,0x0b, /* kind: CONSTANT_PackageNamespace, ref. to: flash.events */
94 0x00, /* zero namespace sets */
96 0x0c, /* 11 MultiNames (+1) */
97 /* 1st value: Multiname kind (0x07 = Qualified Name, a multiname with 1 namespace, refers to a method)
98 2nd value: refers to namespace name index in the namespace table
99 3rd value: refers to method name index in the string table */
100 0x07,0x01,0x02, /* stop_fla:MainTimeLine */
101 0x07,0x02,0x04, /* flash.display:MovieClip */
102 0x07,0x04,0x06, /* <4th namespace>:dostop */
103 0x07,0x05,0x08, /* <global>:stop */
104 0x07,0x05,0x09, /* <global>:addFrameScript */
105 0x07,0x05,0x0a, /* <global>:Object */
106 0x07,0x06,0x0c, /* flash.events:EventDispatcher */
107 0x07,0x02,0x0d, /* flash.display:DisplayObject */
108 0x07,0x02,0x0e, /* flash.display:InteractiveObject */
109 0x07,0x02,0x0f, /* flash.display:DisplayObjectContainer */
110 0x07,0x02,0x10, /* flash.display:Sprite */
112 0x04, /* 4 Methods */
114 0x00,0x00,0x00,0x00, /* No params (nor params types), no return type, no method name, flags */
115 0x00,0x00,0x00,0x00, /* No params (nor params types), no return type, no method name, flags */
116 0x00,0x00,0x00,0x00, /* No params (nor params types), no return type, no method name, flags */
117 0x00,0x00,0x00,0x00, /* No params (nor params types), no return type, no method name, flags */
119 0x00, /* Zero Metadata */
122 0x01, /* Name: ref. to multiname no. 1 (MainTimeline) */
123 0x02, /* Super_name (base class): ref. to multiname no. 2 (flash.display) */
124 0x08, /* Flags: 0x08 value indicates that it uses its protected namespace (and make next field exists) */
125 0x03, /* Ref. to namespace no. 3 (MainTimeline, protected namespace for this class) */
126 0x00, /* No. of interfaces: there are no interfaces (nor interface definition) */
127 0x02, /* Initializer index: ref. to method no. 2 */
128 0x01, /* No. of traits */
130 0x03, /* Name: ref. to multiname no. 3 (stop) */
131 0x01, /* 0000: no attributes (nor metadata in the next subsection);
132 then 1: type is Trait_Method */
133 /* Trait_method section */
134 0x00, /* NO optimization for virtual calls */
135 0x01, /* Ref. to method no. 1 */
136 /* HERE FOLLOW THE CLASS DATA */
137 0x00, /* Ref. to method no. 0 as static initializer for this class */
138 0x00, /* No. of traits for this class (no ones) */
141 0x03, /* Ref. to method no. 3, invoked prior to any other code in the script */
142 0x01, /* No. of traits */
144 0x01, /* Name: ref. to multiname no. 1 (flash.display:MovieClip) */
145 0x04, /* 0000: no attributes (nor metadata in the next subsection);
146 then 4: type is Trait_Class*/
147 /* Trait_class section */
148 0x01, /* Slot ID where the trait resides */
149 0x00, /* Class index (there is only one class)*/
151 0x04, /* Method body count: there are 4 method bodies */
152 /* HERE FOLLOW THE METHOD BODY DATA */
153 0x00, /* Method index, ref. to method no. 0 */
154 0x01, /* Max stack slots the method can use */
155 0x01, /* No. of registers +1 the method can use: this one cannot use registers */
156 0x09,0x0a, /* Min and max scope depth the method can access*/
157 0x03, /* Code length (in bytes) */
158 /* The actual method code:
159 this is the function stop_fla::MainTimeline$cinit()*/
161 0x00, /* No. of exceptions (no exceptions) */
162 0x00, /* No. of traits (no traits) */
164 0x01, /* Method index, ref. to method no. 1 */
165 0x01, /* Max stack slots the method can use */
166 0x01, /* No. of registers +1 the method can use: this one cannot use registers */
167 0x0a,0x0b, /* Min and max scope depth the method can access*/
168 0x08, /* Code length (in bytes) */
169 /* The actual method code:
170 this is the function stop_fla::dostop(),
171 the one that actually executes the stop() */
172 0xd0,0x30,0x5d,0x04,0x4f,0x04,0x00,0x47,
173 0x00, /* No. of exceptions (no exceptions) */
174 0x00, /* No. of traits (no traits) */
177 /* Header of stop_fla::MainTimeline() method */
178 char constructor_header[5] = {
179 0x02, /* Method index, ref. to method no. 2 */
180 0x03, /* Max stack slots the method can use */
181 0x01, /* No. of registers +1 the method can use: this one cannot use registers */
182 0x0a,0x0b /* Min and max scope depth the method can access*/
185 char constructor_first[5] = {
186 /* The actual method code:
187 This is the function stop_fla::MainTimeline()
188 Does: calls the super constructor for class #0 (MainTimeline),
189 then puts on the stack the object, namespace and name of the arguments
190 needed by the addFrameScripts, then calls the addFrameScripts
192 0xd0, /* getlocal0 */
193 0x30, /* pushscope */
194 0xd0, /* getlocal0 */
195 0x49, /* constructsuper */
199 char constructor_frame_register[10] = {
200 0x5d, /* findpropstrict */
201 0x05, /* 'addFrameScript' */
202 0x25, /* pushshort */
203 0x00, /* frame number for pushshort */
204 0x02, /* NOP (hack to write u30 value of frame number when > 127) */
206 0x03, /* 'stop_fla::dostop' */
207 0x4f, /* callpropvoid */
208 0x05, /* 'addFrameScript' */
212 char constructor_return[3] = {
213 0x47, /* returnvoid */
214 0x00, /* No. of exceptions (no exceptions) */
215 0x00, /* No. of traits (no traits) */
218 char script_init_pool[47] = {
219 0x03, /* Method index, ref. to method no. 3 */
220 0x02, /* Max stack slots the method can use */
221 0x01, /* No. of registers +1 the method can use: this one cannot use registers */
222 0x01,0x09, /* Min and max scope depth the method can access*/
223 0x27, /* Code length (in bytes) */
224 /* The actual method code:
225 this is the function script0$init() */
226 0xd0,0x30,0x65,0x00,0x60,0x06,0x30,0x60,0x07,0x30,0x60,0x08,0x30,0x60,0x09,0x30,0x60,0x0a,0x30,0x60,
227 0x0b,0x30,0x60,0x02,0x30,0x60,0x02,0x58,0x00,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x68,0x01,0x47,
228 0x00, /* No. of exceptions (no exceptions) */
229 0x00 /* No. of traits (no traits) */
231 /* END OF THE ABCFILE (Actionscript Byte Code) */
233 char code_len[5] = {0, };
234 unsigned clen_len = AVM2_uint32toU30((6 + sizeof(constructor_frame_register) * frame_nums), code_len);
235 unsigned i, offset = 0;
237 TAG *classInit = swf_InsertTagBefore(swf, swf->firstTag, ST_DOABC);
239 /* Copy the environment Initialization code */
240 swf_SetBlock(classInit, (U8*)init_pool,sizeof(init_pool));
241 /* Copy Constructor Method header */
242 swf_SetBlock(classInit, (U8*)constructor_header, sizeof(constructor_header));
243 /* Add Code block size (u30) to the method header */
244 swf_SetBlock(classInit, (U8*)code_len, clen_len);
246 /* Copy Constructor Method body first part */
247 swf_SetBlock(classInit, (U8*)constructor_first, sizeof(constructor_first));
249 /* Register the callback for every frame */
250 for (i = 0; i < frame_nums; ++i) {
251 AVM2_uint32toU30(i,constructor_frame_register + 3); // Write current frame number
252 swf_SetBlock(classInit, (U8*)constructor_frame_register, sizeof(constructor_frame_register));
255 /* Copy Constructor method body ending, just a return */
256 swf_SetBlock(classInit, (U8*)constructor_return, sizeof(constructor_return));
258 /* Copy the script init code */
259 swf_SetBlock(classInit, (U8*)script_init_pool, sizeof(script_init_pool));
262 void AVM2_InsertButtonLink(SWF*swf)
264 unsigned char displayEventCode[] = {
265 // button.dispatchEvent(new Event("pdflinkdown"),true,true)
267 0x01, 0x00, 0x00, 0x00, //flags
269 0x10, 0x00, 0x2e, 0x00, //version
274 0x17, 'e','v','e','n','t','_','o','h','n','e','_','l','i','s','t','e','n','e','r','_','f','l','a',
275 0x0c, 'M','a','i','n','t','i','m','e','l','i','n','e',
276 0x0d, 'f','l','a','s','h','.','d','i','s','p','l','a','y',
277 0x09, 'M','o','v','i','e','c','l','i','p',
278 0x24, 'e','v','e','n','t','_','o','h','n','e','_','l','i','s','t','e','n','e','r','_','f','l','a',':','M','a','i','n','t','i','m','e','l','i','n','e',
280 0x06, 'b','u','t','t','o','n',
281 0x06, 'f','r','a','m','e','1',
282 0x0c, 'f','l','a','s','h','.','e','v','e','n','t','s',
283 0x05, 'E','v','e','n','t',
284 0x0b, 'p','d','f','l','i','n','k','d','o','w','n',
285 0x0d, 'd','i','s','p','a','t','c','h','E','v','e','n','t',
286 0x0e, 'a','d','d','F','r','a','m','e','S','c','r','i','p','t',
287 0x06, 'O','b','j','e','c','t',
288 0x0f, 'E','v','e','n','t','d','i','s','p','a','t','c','h','e','r',
289 0x0d, 'D','i','s','p','l','a','y','O','b','j','e','c','t',
290 0x11, 'I','n','t','e','r','a','c','t','i','v','e','O','b','j','e','c','t',
291 0x16, 'D','i','s','p','l','a','y','O','b','j','e','c','t','C','o','n','t','a','i','n','e','r',
292 0x06, 'S','p','r','i','t','e',
294 0x07, // 6 namespaces
302 0x00, //zero namespace sets
304 0x0e, //13 multinames
320 0x00, 0x00, 0x00, 0x00,
321 0x00, 0x00, 0x00, 0x00,
322 0x00, 0x00, 0x00, 0x00,
323 0x00, 0x00, 0x00, 0x00,
325 0x00, // zero metadata
328 0x01, 0x02, 0x08, 0x03, 0x00, 0x02,
330 0x03, 0x00, // name, slot
332 0x04, 0x01, // name, method,
334 0x00, // ref to method 0 (initializer)
338 0x03, 0x01, 0x01, 0x04, 0x01, 0x00,
340 0x04, // 4 method bodies
342 0x00, 0x01, 0x01, 0x09, 0x0a,
343 0x03, 0xd0, 0x30, 0x47, // code
346 0x01, 0x05, 0x01, 0x0a, 0x0b,
347 0x11, 0xd0, 0x30, 0x60, 0x03, 0x5d, 0x05, 0x2c, 0x0b, 0x26, 0x26, 0x4a, 0x05, 0x03, 0x4f, 0x06, 0x01, 0x47, // code
350 0x02, 0x03, 0x01, 0x0a, 0x0b,
351 0x0f, 0xd0, 0x30, 0xd0, 0x49, 0x00, 0x5d, 0x07, 0x24, 0x00, 0x60, 0x04, 0x4f, 0x07, 0x02, 0x47, // code
354 0x03, 0x02, 0x01, 0x01, 0x09,
355 0x27, 0xd0, 0x30, 0x65, 0x00, 0x60, 0x08, 0x30, 0x60, 0x09, 0x30, 0x60, 0x0a, 0x30, 0x60, 0x0b, //code
356 0x30, 0x60, 0x0c, 0x30, 0x60, 0x0d, 0x30, 0x60, 0x02, 0x30, 0x60, 0x02, 0x58, 0x00, 0x1d, 0x1d,
357 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x68, 0x01, 0x47,