50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
// Copyright 2016 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "audio_core/hle/dsp.h"
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#include "audio_core/hle/pipe.h"
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namespace DSP {
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namespace HLE {
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std::array<SharedMemory, 2> g_regions;
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static size_t CurrentRegionIndex() {
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// The region with the higher frame counter is chosen unless there is wraparound.
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// This function only returns a 0 or 1.
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if (g_regions[0].frame_counter == 0xFFFFu && g_regions[1].frame_counter != 0xFFFEu) {
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// Wraparound has occured.
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return 1;
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}
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if (g_regions[1].frame_counter == 0xFFFFu && g_regions[0].frame_counter != 0xFFFEu) {
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// Wraparound has occured.
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return 0;
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}
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return (g_regions[0].frame_counter > g_regions[1].frame_counter) ? 0 : 1;
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}
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static SharedMemory& ReadRegion() {
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return g_regions[CurrentRegionIndex()];
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}
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static SharedMemory& WriteRegion() {
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return g_regions[1 - CurrentRegionIndex()];
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}
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void Init() {
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DSP::HLE::ResetPipes();
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}
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void Shutdown() {
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}
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bool Tick() {
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return true;
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}
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} // namespace HLE
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} // namespace DSP
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