Mercurial > fife-parpg

annotate engine/core/audio/sounddecoder.h @ 589:d1df6cf5ff23

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* Fixed a bug in RenderBackendSDL, the clip area was not properly set. * Renamed the backquad and border commands of the FloatingTextRenderer. * Added the TransparentArea commands to the InstanceRenderer. Note: with addTransparentArea(instance, string, width, height, transparent, front) you can enable an area, that make all instances in this zone and with the same namespace transparent. The string is for the namespace, so you can set one or more namespaces to be transparent. Width and height specifies the size of the area. Transparent defines the intensity of transparency, 255 = invisible. The bool front, enable or disable the z check, so that only instances in front of the source instance could be transparent.
author helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 13 Aug 2010 16:33:36 +0000
parents 64738befdf3b
children
rev   line source
0
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 #ifndef FIFE_SOUNDDECODER_H
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23 #define FIFE_SOUNDDECODER_H
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24
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25 // Standard C++ library includes
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27 // Platform specific includes
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28
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29 // 3rd party library includes
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30
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31 // FIFE includes
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32 // These includes are split up in two parts, separated by one empty line
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33 // First block: files included from the FIFE root src directory
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34 // Second block: files included from the same folder
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35
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36 #include "soundconfig.h"
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37 #include "fife_openal.h"
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38
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39 namespace FIFE {
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41 class SoundDecoder {
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42 public:
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43
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44 virtual ~SoundDecoder() {}
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45
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46 /** Returns the decoded length of the file in bytes
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47 */
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48 virtual unsigned long getDecodedLength() const = 0;
0
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49
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50 /** A stream or not?
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51 *
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52 * The decision if we decode the whole audio file in one buffer or use a
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53 * kind of streaming depends on the value of MAX_KEEP_IN_MEM from
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54 * soundconfig.h
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55 *
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56 * @return Return true for a streaming decoder, false if the sound is
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57 * decoded in one buffer
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58 */
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59 bool needsStreaming() const { return getDecodedLength() > MAX_KEEP_IN_MEM; }
0
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60
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61 /** Sets the current position in the file (in bytes)
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62 *
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63 * @return 0 (False), if the positioning was successful
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64 */
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65 virtual bool setCursor(unsigned long pos) = 0;
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66
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67 /** Request the decoding of the next part of the stream.
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68 *
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69 * @param length The length of the decoded part
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70 * @return 0 (False), if decoding was successful
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71 */
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72 virtual bool decode(unsigned long length) = 0;
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73
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74 /** Returns the next decoded buffer.
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75 *
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76 * The length of the buffer is returned by getBufferSize().
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77 */
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78 virtual void *getBuffer() const = 0;
0
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79
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80 /** Returns the byte-size of the buffer returned by getBuffer().
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81 */
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82 virtual unsigned long getBufferSize() = 0;
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83
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84 /** Releases the buffer returned by getBuffer()
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85 */
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86 virtual void releaseBuffer() = 0;
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87
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88 /** Tests if the audio data is stereo data or mono.
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89 *
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90 * @return Returns true if the audio data is stereo, false if mono.
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91 */
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92 bool isStereo() const {
0
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93 return m_isstereo;
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94 }
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95
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96 /** Returns the openAL-Format of the audio file
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97 */
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98 ALenum getALFormat() const {
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99 if (m_isstereo) {
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100 return m_is8bit ? AL_FORMAT_STEREO8 : AL_FORMAT_STEREO16;
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101 } else {
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102 return m_is8bit ? AL_FORMAT_MONO8 : AL_FORMAT_MONO16;
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103 }
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104 }
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105
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106 /** Returns the bit resolution
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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107 */
378
64738befdf3b bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
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108 short getBitResolution() const {
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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109 return m_is8bit ? 8 : 16;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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110 }
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111
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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112 /** Returns the sample rate
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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113 */
378
64738befdf3b bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 46
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114 unsigned long getSampleRate() const{
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 return m_samplerate;
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116 }
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117
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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118 protected:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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119 bool m_isstereo;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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120 bool m_is8bit;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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121 unsigned long m_samplerate;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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122 };
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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123 }
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124
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125 #endif