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| author | MerryMage <MerryMage@users.noreply.github.com> | 2016-02-21 13:13:52 +0000 |
|---|---|---|
| committer | MerryMage <MerryMage@users.noreply.github.com> | 2016-02-21 13:13:52 +0000 |
| commit | 8b00954ec79fad71691ad2d4c82d5c1c60e21b0c (patch) | |
| tree | 443d275fd39c58928e68ef22ce3fe0fa56c73642 /src/audio_core/hle/dsp.cpp | |
| parent | 0d086616d1af239b8e41b246bea3c1ef85fc907f (diff) | |
AudioCore: Skeleton Implementation
This commit:
* Adds a new subproject, audio_core.
* Defines structures that exist in DSP shared memory.
* Hooks up various other parts of the emulator into audio core.
This sets the foundation for a later HLE DSP implementation.
Diffstat (limited to 'src/audio_core/hle/dsp.cpp')
| -rw-r--r-- | src/audio_core/hle/dsp.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/audio_core/hle/dsp.cpp b/src/audio_core/hle/dsp.cpp new file mode 100644 index 0000000000..c89356edc1 --- /dev/null +++ b/src/audio_core/hle/dsp.cpp @@ -0,0 +1,42 @@ +// Copyright 2016 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "audio_core/hle/dsp.h" +#include "audio_core/hle/pipe.h" + +namespace DSP { +namespace HLE { + +SharedMemory g_region0; +SharedMemory g_region1; + +void Init() { + DSP::HLE::ResetPipes(); +} + +void Shutdown() { +} + +bool Tick() { + return true; +} + +SharedMemory& CurrentRegion() { + // The region with the higher frame counter is chosen unless there is wraparound. + + if (g_region0.frame_counter == 0xFFFFu && g_region1.frame_counter != 0xFFFEu) { + // Wraparound has occured. + return g_region1; + } + + if (g_region1.frame_counter == 0xFFFFu && g_region0.frame_counter != 0xFFFEu) { + // Wraparound has occured. + return g_region0; + } + + return (g_region0.frame_counter > g_region1.frame_counter) ? g_region0 : g_region1; +} + +} // namespace HLE +} // namespace DSP |