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| author | spicyjpeg <thatspicyjpeg@gmail.com> | 2024-01-08 19:15:28 +0100 |
|---|---|---|
| committer | spicyjpeg <thatspicyjpeg@gmail.com> | 2024-01-08 19:15:28 +0100 |
| commit | a149dc9e3b84922a7e52d31e9a56f255a5597dff (patch) | |
| tree | 8f30aacab5d7e0d2569e821c2d3b83c6e703b81e /examples/sound/cdstream/stream.c | |
| parent | dd85f9f993427ae69ab905486f8ef372d3960664 (diff) | |
| download | psn00bsdk-a149dc9e3b84922a7e52d31e9a56f255a5597dff.tar.gz | |
Fix examples, update submodules and CI script
Diffstat (limited to 'examples/sound/cdstream/stream.c')
| -rw-r--r-- | examples/sound/cdstream/stream.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/examples/sound/cdstream/stream.c b/examples/sound/cdstream/stream.c index 624b6e1..9dfc9ba 100644 --- a/examples/sound/cdstream/stream.c +++ b/examples/sound/cdstream/stream.c @@ -29,7 +29,7 @@ /* Private utilities */ -static volatile Stream_Context *_active_ctx = (void *) 0; +static volatile Stream_Context *volatile _active_ctx = (void *) 0; static Stream_Time _default_timer_function(void) { return VSync(-1); @@ -42,7 +42,7 @@ static int _get_default_timer_rate(void) { /* Interrupt handlers */ static void _spu_irq_handler(void) { - Stream_Context *ctx = _active_ctx; + volatile Stream_Context *ctx = _active_ctx; // Acknowledge the interrupt to ensure it can be triggered again. The only // way to do this is actually to disable the interrupt entirely; we'll @@ -90,13 +90,13 @@ static void _spu_irq_handler(void) { // both channels' loop addresses to make them "jump" to the new buffers, // rather than actually looping when they encounter the loop flag at the end // of the currently playing buffers. - uint32_t offset = 0; uint32_t address = ctx->config.spu_address + (ctx->db_active ? ctx->chunk_size : 0); int sample_rate = ctx->new_sample_rate; ctx->config.sample_rate = sample_rate; + SpuSetTransferStartAddr(address); SPU_IRQ_ADDR = getSPUAddr(address); for (uint32_t ch = 0, mask = ctx->config.channel_mask; mask; ch++, mask >>= 1) { @@ -104,15 +104,14 @@ static void _spu_irq_handler(void) { continue; SPU_CH_FREQ (ch) = getSPUSampleRate(sample_rate); - SPU_CH_LOOP_ADDR(ch) = getSPUAddr(address + offset); - offset += ctx->config.interleave; + SPU_CH_LOOP_ADDR(ch) = getSPUAddr(address); + address += ctx->config.interleave; // Make sure this channel's data ends with an appropriate loop flag. //ptr[offset - 15] |= 0x03; } // Start uploading the next chunk to the SPU. - SpuSetTransferStartAddr(address); SpuWrite((const uint32_t *) ptr, ctx->chunk_size); } @@ -186,6 +185,9 @@ bool Stream_Start(Stream_Context *ctx, bool resume) { int sample_rate = ctx->new_sample_rate; ctx->config.sample_rate = sample_rate; + // Disable the IRQ as we're going to call spu_irq_handler() manually (due to + // finicky SPU timings). + SPU_CTRL &= ~(1 << 6); SpuSetKey(0, ctx->config.channel_mask); for (uint32_t ch = 0, mask = ctx->config.channel_mask; mask; ch++, mask >>= 1) { @@ -200,14 +202,14 @@ bool Stream_Start(Stream_Context *ctx, bool resume) { address += ctx->config.interleave; } - _spu_irq_handler(); SpuSetKey(1, ctx->config.channel_mask); + _spu_irq_handler(); return true; } bool Stream_Stop(void) { - Stream_Context *ctx = _active_ctx; + volatile Stream_Context *ctx = _active_ctx; if (!ctx) return false; |
