lxdream 0.9.1| filename | src/aica/audio.c |
| changeset | 934:3acd3b3ee6d1 |
| prev | 779:a60e47313e7b |
| next | 989:7baf5ecd8e98 |
| author | nkeynes |
| date | Fri Dec 26 14:25:23 2008 +0000 (13 years ago) |
| branch | lxdream-mem |
| permissions | -rw-r--r-- |
| last change | Change RAM regions to use static arrays rather than mmap regions, for a 2-3% performance gain. General mem cleanups, including some save state fixes that break states again. |
| file | annotate | diff | log | raw |
1.1 --- a/src/aica/audio.c Mon Jul 28 10:10:13 2008 +00001.2 +++ b/src/aica/audio.c Fri Dec 26 14:25:23 2008 +00001.3 @@ -68,8 +68,6 @@1.5 #define NEXT_BUFFER() ((audio.write_buffer == NUM_BUFFERS-1) ? 0 : audio.write_buffer+1)1.7 -extern char *arm_mem;1.8 -1.9 /**1.10 * Preserve audio channel state only - don't bother saving the buffers1.11 */1.12 @@ -299,7 +297,7 @@1.13 switch( channel->sample_format ) {1.14 case AUDIO_FMT_16BIT:1.15 for( j=0; j<num_samples; j++ ) {1.16 - sample = ((int16_t *)(arm_mem + channel->start))[channel->posn];1.17 + sample = ((int16_t *)(aica_main_ram + channel->start))[channel->posn];1.18 result_buf[j][0] += sample * vol_left;1.19 result_buf[j][1] += sample * vol_right;1.21 @@ -323,7 +321,7 @@1.22 break;1.23 case AUDIO_FMT_8BIT:1.24 for( j=0; j<num_samples; j++ ) {1.25 - sample = ((int8_t *)(arm_mem + channel->start))[channel->posn] << 8;1.26 + sample = ((int8_t *)(aica_main_ram + channel->start))[channel->posn] << 8;1.27 result_buf[j][0] += sample * vol_left;1.28 result_buf[j][1] += sample * vol_right;1.30 @@ -366,7 +364,7 @@1.31 break;1.32 }1.33 }1.34 - uint8_t data = ((uint8_t *)(arm_mem + channel->start))[channel->posn>>1];1.35 + uint8_t data = ((uint8_t *)(aica_main_ram + channel->start))[channel->posn>>1];1.36 if( channel->posn&1 ) {1.37 adpcm_yamaha_decode_nibble( channel, (data >> 4) & 0x0F );1.38 } else {1.39 @@ -478,7 +476,7 @@1.40 if( audio.channels[channel].sample_format == AUDIO_FMT_ADPCM ) {1.41 audio.channels[channel].adpcm_step = 0;1.42 audio.channels[channel].adpcm_predict = 0;1.43 - uint8_t data = ((uint8_t *)(arm_mem + audio.channels[channel].start))[0];1.44 + uint8_t data = ((uint8_t *)(aica_main_ram + audio.channels[channel].start))[0];1.45 adpcm_yamaha_decode_nibble( &audio.channels[channel], data & 0x0F );1.46 }1.47 }
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