1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
|
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<HTML>
<HEAD>
<TITLE>nevrax.org : docs</TITLE>
<LINK REL=stylesheet TYPE="text/css" HREF="/inc/css/nevrax.css">
<link href="doxygen.css" rel="stylesheet" type="text/css">
</HEAD>
<BODY MARGINHEIGHT="0" MARGINWIDTH="0">
<!-- uplinks -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0>
<TR>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD WIDTH=140 BGCOLOR=#dddddd><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle> <A CLASS=uplinks HREF=><b>Home</B></FONT></A> </TD>
<TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle> <A CLASS=uplinks HREF=http://www.nevrax.com><b>nevrax.com</B></FONT></A> </TD>
</TR>
</TABLE>
<!-- banner Nevrax -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0 WIDTH=100%>
<TR><TD BGCOLOR="#000000" BACKGROUND="/inc/img/black_banner.jpg"><A HREF=""><IMG SRC="/inc/img/nevrax.gif" WIDTH="170" HEIGHT="45" BORDER=0 ALT="Nevrax" ></A></TD></TR>
</TABLE>
<!-- main table -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0 height=100%>
<TR>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="10" BORDER=0 ALT=""></TD>
<TD WIDTH=140 BGCOLOR=#dddddd VALIGN=TOP ALIGN=middle><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">
<!------ Begin Box ------>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 BGCOLOR=black><TR><TD><TABLE border=0 cellspacing=2 cellpadding=0 width=120><tr><TD ALIGN=middle bgcolor=black>
<FONT COLOR=white FACE="sans-serif"><B>Nevrax.org</B></FONT></TD></TR><tr><td colspan=2 bgcolor=#FFFFFF>
<TABLE cellspacing=0 cellpadding=1 border=0>
<tr><td ALIGN=middle><a class='linkbox' href="/news/" TITLE="Rubrique news"><img width=13 height=15 hspace=5 border=0 src=/inc/img/picto-news.gif ALT=#></A></td><td><a class='linkbox' href="/news/" TITLE="News">News</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/mail/" TITLE="Rubrique mail"><img width=15 height=11 hspace=5 border=0 src=/inc/img/picto-mail.gif ALT=#></A></td><td><a class='linkbox' href="/mail/" TITLE="Mailing list archive">Mailing-list</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/docs/" TITLE="Rubrique docs"><img width=14 height=16 hspace=5 border=0 src=/inc/img/picto-docs.gif ALT=#></A></td><td><a class='linkbox' href="/docs/" TITLE="Documentation">Documentation</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/cvs/" TITLE="Rubrique cvs"><img width=13 height=17 hspace=5 border=0 src=/inc/img/picto-cvs.gif ALT=#></A></td><td><a class='linkbox' href="/cvs/" TITLE="CVS Web">CVS</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/bugs/" TITLE="Rubrique bugs"><img width=20 height=16 hspace=5 border=0 src=/inc/img/picto-bugs.gif ALT=#></A></td><td><a class='linkbox' href="/bugs/" TITLE="Bugtracking">Bugs</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/GPL.php3" TITLE="Rubrique license"><img width=18 height=12 hspace=5 border=0 src=/inc/img/picto-gpl.gif ALT=#></A></td><td><a class='linkbox' href="/GPL.php3" TITLE="License">License</a></td></tr>
</TABLE>
</TD></TR></TABLE></TD></TR></TABLE>
<!------ End Box ------>
</TD>
<TD WIDTH=15><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD ALIGN=left valign=top><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">
<!-- title -->
<TABLE background="/inc/img/redline.gif" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td>
<A HREF="/docs/"><img src="/inc/img/t_docs.gif" ALT="Docs" HEIGHT=20 BORDER=0></A>
</td><td><IMG SRC="/inc/img/pixel.gif" WIDTH="1" HEIGHT="1" BORDER=0 ALT="">
</td></tr></table>
<!-- block -->
<TABLE bgcolor="#dddddd" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td width=1% valign=middle><img width=6 height=14 hspace=2 vspace=2 src="/inc/img/reddots.gif"></TD>
<TD><B>Documentation</B></TD>
<TD ALIGN=RIGHT> </td>
</tr></table>
<!-- Generated by Doxygen 1.2.14 -->
<center>
<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/cgi-bin/nel-search.cgi">Search</a> </center>
<hr><h1>buffer_dsound.cpp</h1><a href="buffer__dsound_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026
00027 <font class="preprocessor">#include "<a class="code" href="stddsound_8h.html">stddsound.h</a>"</font>
00028 <font class="preprocessor">#include "<a class="code" href="buffer__dsound_8h.html">buffer_dsound.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="path_8h.html">nel/misc/path.h</a>"</font>
00030
00031
00032 <font class="preprocessor">#include <windows.h></font>
00033 <font class="preprocessor">#include <mmsystem.h></font>
00034
00035 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00036 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00037
00038 <font class="keyword">namespace </font>NLSOUND {
00039
00040
<a name="l00041"></a><a class="code" href="classNLSOUND_1_1CBufferDSound.html#a0">00041</a> CBufferDSound::CBufferDSound()
00042 {
00043 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a> = NULL;
00044 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o2">_Size</a> = 0;
00045 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o3">_Format</a> = <a class="code" href="namespaceNLSOUND.html#a83a22">Mono16</a>;
00046 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o4">_Freq</a> = 0;
00047 }
00048
<a name="l00049"></a><a class="code" href="classNLSOUND_1_1CBufferDSound.html#a1">00049</a> CBufferDSound::~CBufferDSound()
00050 {
00051 <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"Destroying DirectSound buffer %s (%p)"</font>, <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o0">_Name</a>.c_str(), <font class="keyword">this</font>);
00052
00053 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a> != NULL)
00054 {
00055 <font class="keyword">delete</font>[] <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a>;
00056 }
00057 }
00058
<a name="l00059"></a><a class="code" href="classNLSOUND_1_1CBufferDSound.html#a2">00059</a> <font class="keywordtype">void</font> CBufferDSound::presetName(<font class="keyword">const</font> std::string &bufferName)
00060 {
00061 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o0">_Name</a> = bufferName;
00062 }
00063
00064
<a name="l00065"></a><a class="code" href="classNLSOUND_1_1CBufferDSound.html#a3">00065</a> <font class="keywordtype">void</font> CBufferDSound::setFormat( <a class="code" href="namespaceNLSOUND.html#a83">TSampleFormat</a> <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>, uint freq )
00066 {
00067 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o3">_Format</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>;
00068 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o4">_Freq</a> = freq;
00069 }
00070
00071
<a name="l00072"></a><a class="code" href="classNLSOUND_1_1CBufferDSound.html#a4">00072</a> <font class="keywordtype">bool</font> CBufferDSound::fillBuffer( <font class="keywordtype">void</font> *<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>, uint32 bufsize )
00073 {
00074 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00075 }
00076
00077
<a name="l00078"></a><a class="code" href="classNLSOUND_1_1CBufferDSound.html#a6">00078</a> <font class="keywordtype">float</font> CBufferDSound::getDuration()<font class="keyword"> const</font>
00079 <font class="keyword"></font>{
00080 <font class="keywordtype">float</font> frames = (float) <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o2">_Size</a>;
00081
00082 <font class="keywordflow">switch</font> (_Format) {
00083 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a83a21">Mono8</a>:
00084 <font class="keywordflow">break</font>;
00085 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a83a22">Mono16</a>:
00086 frames /= 2.0f;
00087 <font class="keywordflow">break</font>;
00088 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a83a23">Stereo8</a>:
00089 frames /= 2.0f;
00090 <font class="keywordflow">break</font>;
00091 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a83a24">Stereo16</a>:
00092 frames /= 4.0f;
00093 <font class="keywordflow">break</font>;
00094 }
00095
00096 <font class="keywordflow">return</font> 1000.0f * frames / (float) <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o4">_Freq</a>;
00097 }
00098
00099
<a name="l00100"></a><a class="code" href="classNLSOUND_1_1CBufferDSound.html#a10">00100</a> <font class="keywordtype">bool</font> CBufferDSound::loadWavFile(<font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="cf__lexical_8cpp.html#a95">file</a>)
00101 {
00102 sint error;
00103 sint32 <a class="code" href="driver__opengl__extension__def_8h.html#a410">num</a>;
00104 HMMIO hmmio;
00105 WAVEFORMATEX <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>;
00106 MMCKINFO riff_chunk;
00107 MMCKINFO data_chunk;
00108 MMCKINFO chunk;
00109
00110
00111 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a> != NULL)
00112 {
00113 free(<a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a>);
00114 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a> = NULL;
00115 }
00116
00117
00118 <font class="comment">// Open the file </font>
00119 hmmio = mmioOpen((<font class="keywordtype">char</font>*) <a class="code" href="cf__lexical_8cpp.html#a95">file</a>, NULL, MMIO_READ | MMIO_DENYWRITE);
00120
00121 <font class="keywordflow">if</font> (hmmio == NULL)
00122 {
00123 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Failed to open the file"</font>);
00124 }
00125
00126
00127 <font class="comment">// Check it's a WAVE file </font>
00128 riff_chunk.ckid = FOURCC_RIFF;
00129
00130 error = (sint) mmioDescend(hmmio, &riff_chunk, NULL, 0);
00131
00132 <font class="keywordflow">if</font> ((error != 0) || (riff_chunk.ckid != FOURCC_RIFF) || (riff_chunk.fccType != mmioFOURCC(<font class="charliteral">'W'</font>, <font class="charliteral">'A'</font>, <font class="charliteral">'V'</font>, <font class="charliteral">'E'</font>)))
00133 {
00134 mmioClose(hmmio, 0);
00135 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Not a WAVE file"</font>);
00136 }
00137
00138
00139 <font class="comment">// Search the format chunk </font>
00140 chunk.ckid = mmioFOURCC(<font class="charliteral">'f'</font>, <font class="charliteral">'m'</font>, <font class="charliteral">'t'</font>, <font class="charliteral">' '</font>);
00141
00142 error = (sint) mmioDescend(hmmio, &chunk, &riff_chunk, MMIO_FINDCHUNK);
00143
00144 <font class="keywordflow">if</font> (error != 0)
00145 {
00146 mmioClose(hmmio, 0);
00147 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Couldn't find the format chunk"</font>);
00148 }
00149
00150 <font class="keywordflow">if</font> (chunk.cksize < (long) <font class="keyword">sizeof</font>(PCMWAVEFORMAT))
00151 {
00152 mmioClose(hmmio, 0);
00153 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Invalid format chunk size"</font>);
00154 }
00155
00156
00157 <font class="comment">// read in the format data</font>
00158
00159 <a class="code" href="driver__opengl__extension__def_8h.html#a410">num</a> = mmioRead(hmmio, (HPSTR) &<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>, (<font class="keywordtype">long</font>) <font class="keyword">sizeof</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>));
00160 <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a410">num</a> != (long) <font class="keyword">sizeof</font>(format))
00161 {
00162 mmioClose(hmmio, 0);
00163 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Read failed"</font>);
00164 }
00165
00166 <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.cbSize = 0;
00167
00168 <font class="comment">// Get out of the format chunk</font>
00169
00170 <font class="keywordflow">if</font> (mmioAscend(hmmio, &chunk, 0) != 0)
00171 {
00172 mmioClose(hmmio, 0);
00173 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Read failed"</font>);
00174 }
00175
00176
00177 <font class="comment">// copy the format data </font>
00178
00179 <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.wFormatTag != WAVE_FORMAT_PCM)
00180 {
00181 mmioClose(hmmio, 0);
00182 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Unsupported sample format"</font>);
00183 }
00184
00185 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o4">_Freq</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nSamplesPerSec;
00186
00187 <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nChannels == 1)
00188 {
00189 <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.wBitsPerSample == 8)
00190 {
00191 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o3">_Format</a> = <a class="code" href="namespaceNLSOUND.html#a83a21">Mono8</a>;
00192 }
00193 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.wBitsPerSample == 16)
00194 {
00195 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o3">_Format</a> = <a class="code" href="namespaceNLSOUND.html#a83a22">Mono16</a>;
00196 }
00197 <font class="keywordflow">else</font>
00198 {
00199 mmioClose(hmmio, 0);
00200 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Unsupported sample size"</font>);
00201 }
00202 }
00203 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nChannels == 2)
00204 {
00205 <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.wBitsPerSample == 8)
00206 {
00207 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o3">_Format</a> = <a class="code" href="namespaceNLSOUND.html#a83a23">Stereo8</a>;
00208 }
00209 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.wBitsPerSample == 16)
00210 {
00211 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o3">_Format</a> = <a class="code" href="namespaceNLSOUND.html#a83a24">Stereo16</a>;
00212 }
00213 <font class="keywordflow">else</font>
00214 {
00215 mmioClose(hmmio, 0);
00216 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Unsupported sample size"</font>);
00217 }
00218 }
00219 <font class="keywordflow">else</font> <font class="comment">// Shouldn't normally happen</font>
00220 {
00221 mmioClose(hmmio, 0);
00222 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Unsupported number of channels"</font>);
00223 }
00224
00225
00226 <font class="comment">// Set the file position to the beginning of the data chunk */</font>
00227
00228 sint32 pos = mmioSeek(hmmio, riff_chunk.dwDataOffset + <font class="keyword">sizeof</font>(FOURCC), SEEK_SET);
00229
00230 <font class="keywordflow">if</font> (pos < 0)
00231 {
00232 mmioClose(hmmio, 0);
00233 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Read to set the read position"</font>);
00234 }
00235
00236 data_chunk.ckid = mmioFOURCC(<font class="charliteral">'d'</font>, <font class="charliteral">'a'</font>, <font class="charliteral">'t'</font>, <font class="charliteral">'a'</font>);
00237
00238 <font class="keywordflow">if</font> (mmioDescend(hmmio, &data_chunk, &riff_chunk, MMIO_FINDCHUNK) != 0)
00239 {
00240 mmioClose(hmmio, 0);
00241 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Read to set the read position"</font>);
00242 }
00243
00244
00245 <font class="comment">// Allocate the sample buffer</font>
00246 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o2">_Size</a> = data_chunk.cksize;
00247
00248 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a> = <font class="keyword">new</font> uint8[<a class="code" href="classNLSOUND_1_1CBufferDSound.html#o2">_Size</a>];
00249
00250 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a> == NULL)
00251 {
00252 mmioClose(hmmio, 0);
00253 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Out of memory"</font>);
00254 }
00255
00256
00257 <font class="comment">// Read the sample data</font>
00258
00259 <a class="code" href="driver__opengl__extension__def_8h.html#a410">num</a> = mmioRead(hmmio, (HPSTR) <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a>, <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o2">_Size</a>);
00260
00261 <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a410">num</a> < 0)
00262 {
00263 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Failed to read the samples"</font>);
00264 }
00265 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ((uint32) <a class="code" href="driver__opengl__extension__def_8h.html#a410">num</a> < <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o2">_Size</a>)
00266 {
00267 <font class="comment">// FIXME: print warning or throw exception ???</font>
00268 <font class="keywordtype">char</font>* p = (<font class="keywordtype">char</font>*) <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o1">_Data</a>;
00269 ZeroMemory(p + <a class="code" href="driver__opengl__extension__def_8h.html#a410">num</a>, <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o2">_Size</a> - <a class="code" href="driver__opengl__extension__def_8h.html#a410">num</a>);
00270 }
00271
00272
00273 mmioClose(hmmio, 0);
00274
00275
00276 std::string name = CFile::getFilenameWithoutExtension(<a class="code" href="cf__lexical_8cpp.html#a95">file</a>);
00277 <font class="comment">// if name is preseted, the name must match.</font>
00278 <font class="keywordflow">if</font> (!<a class="code" href="classNLSOUND_1_1CBufferDSound.html#o0">_Name</a>.empty())
00279 {
00280 <a class="code" href="debug_8h.html#a8">nlassertex</a>(<a class="code" href="classNLSOUND_1_1CBufferDSound.html#o0">_Name</a> == name, (<font class="stringliteral">"The preseted name and buffer name doen't match !"</font>));
00281 }
00282 <a class="code" href="classNLSOUND_1_1CBufferDSound.html#o0">_Name</a> = name;
00283
00284 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00285
00286 }
00287
00288
00289 } <font class="comment">// NLSOUND</font>
00290
00291
00292
</pre></div>
<!-- footer -->
<BR><FONT Size=+5> </FONT>
</TD>
<TD WIDTH=15><IMG SRC=/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD>
</TR>
</TABLE>
</BODY>
</HTML>
|
