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comparison src/audio/SDL_mixer.c @ 1:cf2af46e9e2a

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Changes since SDL 1.2.0 release
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:50:19 +0000
parents 74212992fb08
children e8157fcb3114
comparison
equal deleted inserted replaced
0:74212992fb08 1:cf2af46e9e2a
94 94
95 /* The volume ranges from 0 - 128 */ 95 /* The volume ranges from 0 - 128 */
96 #define ADJUST_VOLUME(s, v) (s = (s*v)/SDL_MIX_MAXVOLUME) 96 #define ADJUST_VOLUME(s, v) (s = (s*v)/SDL_MIX_MAXVOLUME)
97 #define ADJUST_VOLUME_U8(s, v) (s = (((s-128)*v)/SDL_MIX_MAXVOLUME)+128) 97 #define ADJUST_VOLUME_U8(s, v) (s = (((s-128)*v)/SDL_MIX_MAXVOLUME)+128)
98 98
99 void SDL_MixAudio (Uint8 *dst, Uint8 *src, Uint32 len, int volume) 99 void SDL_MixAudio (Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
100 { 100 {
101 Uint16 format; 101 Uint16 format;
102 102
103 if ( volume == 0 ) { 103 if ( volume == 0 ) {
104 return; 104 return;