mirror of
https://github.com/xemu-project/xemu.git
synced 2026-07-11 01:24:41 +02:00
Matt Borgerson
67cc79e663
- Fixes a few bugs in the existing C interpreter - Adds a state abstraction layer to switch between engines at runtime and maintain snapshot compatibility
139 lines
3.8 KiB
C
139 lines
3.8 KiB
C
/*
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* QEMU MCPX Audio Processing Unit implementation
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*
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* Copyright (c) 2012 espes
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* Copyright (c) 2018-2019 Jannik Vogel
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* Copyright (c) 2019-2025 Matt Borgerson
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HW_XBOX_MCPX_APU_INT_H
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#define HW_XBOX_MCPX_APU_INT_H
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#include "qemu/osdep.h"
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#include <math.h>
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#include <SDL3/SDL.h>
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#include "hw/hw.h"
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#include "hw/pci/pci.h"
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#include "hw/pci/pci_device.h"
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#include "cpu.h"
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#include "exec/target_page.h"
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#include "migration/vmstate.h"
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#include "qemu/main-loop.h"
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#include "qemu/thread.h"
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#include "system/runstate.h"
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#include "ui/xemu-settings.h"
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#include "trace.h"
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#include "apu.h"
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#include "apu_regs.h"
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#include "apu_debug.h"
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#include "fpconv.h"
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#include "vp/vp.h"
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#include "dsp/gp_ep.h"
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#define GET_MASK(v, mask) (((v) & (mask)) >> ctz32(mask))
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#define SET_MASK(v, mask, val) \
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do { \
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(v) &= ~(mask); \
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(v) |= ((val) << ctz32(mask)) & (mask); \
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} while (0)
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#define CASE_4(v, step) \
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case (v): \
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case (v)+(step): \
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case (v)+(step)*2: \
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case (v)+(step)*3
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// #define DEBUG_MCPX
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#ifdef DEBUG_MCPX
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#define DPRINTF(fmt, ...) \
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do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
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#else
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#define DPRINTF(fmt, ...) \
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do { } while (0)
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#endif
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#define MCPX_APU_DEVICE(obj) \
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OBJECT_CHECK(MCPXAPUState, (obj), "mcpx-apu")
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typedef struct MCPXAPUState {
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/*< private >*/
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PCIDevice parent_obj;
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/*< public >*/
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bool exiting;
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bool set_irq;
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QemuThread apu_thread;
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QemuMutex lock;
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QemuCond cond;
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QemuCond idle_cond;
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bool pause_requested;
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bool is_idle;
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MemoryRegion *ram;
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uint8_t *ram_ptr;
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MemoryRegion mmio;
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MCPXAPUVPState vp;
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MCPXAPUGPState gp;
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MCPXAPUEPState ep;
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uint32_t regs[0x20000];
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int ep_frame_div;
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int frame_work_acc_us;
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int frame_count;
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int64_t frame_count_time_us;
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int64_t next_frame_time_us;
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struct {
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struct {
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int backoff, ok, speedup;
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} pacing;
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struct {
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int64_t last_us;
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int64_t min_us, max_us, sum_us;
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int count;
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} deviation;
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int queued_bytes_min, queued_bytes_max;
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int64_t queued_bytes_sum;
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int queued_bytes_count;
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} throttle;
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struct {
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McpxApuDebugMonitorPoint point;
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int16_t frame_buf[256][2]; // 1 EP frame (0x400 bytes)
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SDL_AudioStream *stream;
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int queued_bytes_low, queued_bytes_high;
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} monitor;
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} MCPXAPUState;
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extern MCPXAPUState *g_state; // Used via debug handlers
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extern struct McpxApuDebug g_dbg, g_dbg_cache;
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extern int g_dbg_voice_monitor;
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extern uint64_t g_dbg_muted_voices[4];
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void mcpx_debug_begin_frame(void);
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void mcpx_debug_end_frame(void);
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void mcpx_apu_monitor_init(MCPXAPUState *d, Error **errp);
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void mcpx_apu_monitor_finalize(MCPXAPUState *d);
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void mcpx_apu_monitor_frame(MCPXAPUState *d);
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#endif
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