1 /* |
1 /* |
2 * OpenAL Bridge - a simple portable library for OpenAL interface |
2 * OpenAL Bridge - a simple portable library for OpenAL interface |
3 * Copyright (c) 2009 Vittorio Giovara <vittorio.giovara@gmail.com> |
3 * Copyright (c) 2009 Vittorio Giovara <vittorio.giovara@gmail.com> |
4 * |
4 * |
5 * This program is free software; you can redistribute it and/or modify |
5 * This program is free software; you can redistribute it and/or modify |
6 * it under the terms of the GNU Lesser General Public License as published by |
6 * it under the terms of the GNU Lesser General Public License as published by |
7 * the Free Software Foundation; version 2 of the License |
7 * the Free Software Foundation; version 2 of the License |
8 * |
8 * |
9 * This program is distributed in the hope that it will be useful, |
9 * This program is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 * GNU Lesser General Public License for more details. |
12 * GNU Lesser General Public License for more details. |
13 * |
13 * |
14 * You should have received a copy of the GNU Lesser General Public License |
14 * You should have received a copy of the GNU Lesser General Public License |
15 * along with this program; if not, write to the Free Software |
15 * along with this program; if not, write to the Free Software |
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
17 */ |
17 */ |
18 |
18 |
19 #include "wrappers.h" |
19 #include "wrappers.h" |
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20 #include "openalbridge_t.h" |
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21 |
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22 extern ALint *Sources; |
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23 |
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24 void *Malloc (size_t nbytes) { |
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25 void *aptr; |
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26 |
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27 if ((aptr = malloc(nbytes)) == NULL) |
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28 err_dump("(%s) FATAL - not enough memory"); |
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29 |
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30 return aptr; |
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31 } |
20 |
32 |
21 |
33 |
22 #ifdef __CPLUSPLUS |
34 void *Realloc (void *aptr, size_t nbytes) { |
23 extern "C" { |
35 aptr = realloc(aptr, nbytes); |
24 #endif |
36 |
25 |
37 if (aptr == NULL) |
26 extern ALint *Sources; |
38 err_dump("(%s) FATAL - not enough memory"); |
27 |
39 |
28 void *Malloc (size_t nbytes) { |
40 return aptr; |
29 void *aptr; |
41 } |
30 |
42 |
31 if ((aptr = malloc(nbytes)) == NULL) |
43 |
32 err_dump("(%s) FATAL - not enough memory"); |
44 FILE *Fopen (const char *fname, char *mode) { |
33 |
45 FILE *fp; |
34 return aptr; |
46 |
35 } |
47 fp = fopen(fname,mode); |
36 |
48 if (fp == NULL) |
37 |
49 err_ret("(%s) ERROR - can't open file %s in mode '%s'", prog, fname, mode); |
38 void *Realloc (void *aptr, size_t nbytes) { |
50 |
39 aptr = realloc(aptr, nbytes); |
51 return fp; |
40 |
52 } |
41 if (aptr == NULL) |
53 |
42 err_dump("(%s) FATAL - not enough memory"); |
54 |
43 |
55 void helper_fade(void *tmp) { |
44 return aptr; |
56 ALfloat gain; |
45 } |
57 ALfloat target_gain; |
46 |
58 fade_t *fade; |
47 |
59 uint32_t index; |
48 FILE *Fopen (const char *fname, char *mode) { |
60 uint16_t quantity; |
49 FILE *fp; |
61 al_fade_t type; |
50 |
62 |
51 fp = fopen(fname,mode); |
63 fade = tmp; |
52 if (fp == NULL) |
64 index = fade->index; |
53 err_ret("(%s) ERROR - can't open file %s in mode '%s'", prog, fname, mode); |
65 quantity = fade->quantity; |
54 |
66 type = fade->type; |
55 return fp; |
67 free (fade); |
56 } |
68 |
57 |
69 if (type == AL_FADE_IN) { |
58 /*TODO make a proper error reporting routine*/ |
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59 ALint AlGetError (const char *str) { |
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60 ALenum error; |
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61 |
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62 error = alGetError(); |
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63 if (error != AL_NO_ERROR) { |
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64 err_msg(str, prog); |
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65 return error; |
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66 } else |
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67 return AL_TRUE; |
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68 } |
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69 |
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70 ALint AlGetError2 (const char *str, int num) { |
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71 ALenum error; |
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72 |
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73 error = alGetError(); |
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74 if (error != AL_NO_ERROR) { |
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75 err_msg(str, prog, num); |
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76 return error; |
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77 } else |
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78 return AL_TRUE; |
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79 } |
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80 |
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81 void *helper_fadein(void *tmp) { |
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82 ALfloat gain; |
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83 ALfloat target_gain; |
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84 fade_t *fade; |
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85 uint32_t index; |
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86 uint16_t quantity; |
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87 |
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88 fade = tmp; |
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89 index = fade->index; |
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90 quantity = fade->quantity; |
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91 free (fade); |
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92 |
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93 #ifdef DEBUG |
70 #ifdef DEBUG |
94 err_msg("(%s) INFO - Fade-in in progress [index %d quantity %d]", prog, index, quantity); |
71 err_msg("(%s) INFO - Fade-in in progress [index %d quantity %d]", prog, index, quantity); |
95 #endif |
72 #endif |
96 |
73 |
97 /*save the volume desired after the fade*/ |
74 // save the volume desired after the fade |
98 alGetSourcef(Sources[index], AL_GAIN, &target_gain); |
75 alGetSourcef(Sources[index], AL_GAIN, &target_gain); |
99 if (target_gain > 1.0f || target_gain <= 0.0f) |
76 if (target_gain > 1.0f || target_gain <= 0.0f) |
100 target_gain = 1.0f; |
77 target_gain = 1.0f; |
101 |
78 |
102 alSourcePlay(Sources[index]); |
79 alSourcePlay(Sources[index]); |
103 |
80 |
104 for (gain = 0.0f ; gain <= target_gain; gain += (float) quantity/10000) { |
81 for (gain = 0.0f ; gain <= target_gain; gain += (float) quantity/10000) { |
105 #ifdef TRACE |
82 #ifdef TRACE |
106 err_msg("(%s) DEBUG - Fade-in set gain to %f", gain); |
83 err_msg("(%s) DEBUG - Fade-in set gain to %f", gain); |
107 #endif |
84 #endif |
108 alSourcef(Sources[index], AL_GAIN, gain); |
85 alSourcef(Sources[index], AL_GAIN, gain); |
109 usleep(10000); |
86 usleep(10000); |
110 } |
87 } |
111 |
88 } else { |
112 AlGetError("(%s) WARN - Failed to set fade-in volume level"); |
89 alGetSourcef(Sources[index], AL_GAIN, &target_gain); |
113 |
90 |
114 #ifndef _WIN32 |
91 for (gain = target_gain; gain >= 0.00f; gain -= (float) quantity/10000) { |
115 pthread_exit(NULL); |
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116 #else |
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117 _endthread(); |
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118 #endif |
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119 return 0; |
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120 } |
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121 |
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122 void *helper_fadeout(void *tmp) { |
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123 ALfloat gain; |
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124 ALfloat old_gain; |
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125 fade_t *fade; |
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126 uint32_t index; |
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127 uint16_t quantity; |
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128 |
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129 fade = tmp; |
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130 index = fade->index; |
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131 quantity = fade->quantity; |
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132 free(fade); |
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133 |
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134 #ifdef DEBUG |
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135 err_msg("(%s) INFO - Fade-out in progress [index %d quantity %d]", prog, index, quantity); |
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136 #endif |
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137 |
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138 alGetSourcef(Sources[index], AL_GAIN, &old_gain); |
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139 |
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140 for (gain = old_gain; gain >= 0.00f; gain -= (float) quantity/10000) { |
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141 #ifdef TRACE |
92 #ifdef TRACE |
142 err_msg("(%s) DEBUG - Fade-out set gain to %f", gain); |
93 err_msg("(%s) DEBUG - Fade-out set gain to %f", gain); |
143 #endif |
94 #endif |
144 alSourcef(Sources[index], AL_GAIN, gain); |
95 alSourcef(Sources[index], AL_GAIN, gain); |
145 usleep(10000); |
96 usleep(10000); |
146 } |
97 } |
147 |
98 |
148 AlGetError("(%s) WARN - Failed to set fade-out volume level"); |
99 if (AL_NO_ERROR != alGetError()) |
149 |
100 err_msg("(%s) WARN - Failed to set fade-out effect",prog); |
150 /*stop that sound and reset its volume*/ |
101 |
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102 // stop that sound and reset its volume |
151 alSourceStop (Sources[index]); |
103 alSourceStop (Sources[index]); |
152 alSourcef (Sources[index], AL_GAIN, old_gain); |
104 alSourcef (Sources[index], AL_GAIN, target_gain); |
153 |
105 } |
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106 |
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107 if (AL_NO_ERROR != alGetError()) |
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108 err_msg("(%s) WARN - Failed to set fade effect",prog); |
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109 |
154 #ifndef _WIN32 |
110 #ifndef _WIN32 |
155 pthread_exit(NULL); |
111 pthread_exit(NULL); |
156 #else |
112 #else |
157 _endthread(); |
113 _endthread(); |
158 #endif |
114 #endif |
159 return 0; |
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160 } |
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161 |
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162 |
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163 #ifdef __CPLUSPLUS |
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164 } |
115 } |
165 #endif |
116 |