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comparison src/audio/macrom/SDL_romaudio.c @ 324:f25f666d609a

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*** empty log message ***
author Sam Lantinga <slouken@libsdl.org>
date Sat, 30 Mar 2002 21:41:01 +0000
parents b7e8038e40ae
children 25809353f877
comparison
equal deleted inserted replaced
323:b7e8038e40ae 324:f25f666d609a
145 oldval = DecrementAtomic((SInt32 *) &audio_is_locked); 145 oldval = DecrementAtomic((SInt32 *) &audio_is_locked);
146 if ( oldval != 1 ) /* != 1 means audio is still locked. */ 146 if ( oldval != 1 ) /* != 1 means audio is still locked. */
147 return; 147 return;
148 148
149 /* Did we miss the chance to mix in an interrupt? Do it now. */ 149 /* Did we miss the chance to mix in an interrupt? Do it now. */
150 if ( BitAndAtomic (0xFFFFFFFF, &need_to_mix) ) { 150 if ( BitAndAtomic (0xFFFFFFFF, (UInt32 *) &need_to_mix) ) {
151 /* 151 /*
152 * Note that this could be a problem if you missed an interrupt 152 * Note that this could be a problem if you missed an interrupt
153 * while the audio was locked, and get preempted by a second 153 * while the audio was locked, and get preempted by a second
154 * interrupt here, but that means you locked for way too long anyhow. 154 * interrupt here, but that means you locked for way too long anyhow.
155 */ 155 */
182 182
183 /* 183 /*
184 * if audio device isn't locked, mix the next buffer to be queued in 184 * if audio device isn't locked, mix the next buffer to be queued in
185 * the memory block that just finished playing. 185 * the memory block that just finished playing.
186 */ 186 */
187 if ( ! BitAndAtomic(0xFFFFFFFF, &audio_is_locked) ) { 187 if ( ! BitAndAtomic(0xFFFFFFFF, (UInt32 *) &audio_is_locked) ) {
188 mix_buffer (audio, buffer[fill_me]); 188 mix_buffer (audio, buffer[fill_me]);
189 } 189 }
190 190
191 /* set this callback to run again when current buffer drains. */ 191 /* set this callback to run again when current buffer drains. */
192 if ( running ) { 192 if ( running ) {