mirror of
https://github.com/kbeckmann/game-and-watch-retro-go.git
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1541393509
* nes long hold pause/set to toggle speedup * refactor nes common emu loop; need to fix busyTime * move odroid_system_tick into common loop, fix cpumon * nes common_emu_loop * pce common_emu_loop * sms common_emu_loop * fix some warnings * setup pause/set macros; remove speedup based on long-pressing pause/set * Update readme. Initial Controls section commit * linting * mute while macro save-stating
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
#pragma once
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#include <odroid_system.h>
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#include "main.h"
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extern SAI_HandleTypeDef hsai_BlockA1;
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extern DMA_HandleTypeDef hdma_sai1_a;
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#define WIDTH 320
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#define HEIGHT 240
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#define BPP 4
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// Default to 50Hz as it results in more samples than at 60Hz
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#define AUDIO_SAMPLE_RATE (48000)
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#define AUDIO_BUFFER_LENGTH (AUDIO_SAMPLE_RATE / 50)
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typedef enum {
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DMA_TRANSFER_STATE_HF = 0x00,
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DMA_TRANSFER_STATE_TC = 0x01,
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} dma_transfer_state_t;
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extern dma_transfer_state_t dma_state;
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extern uint32_t dma_counter;
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extern uint32_t audioBuffer[AUDIO_BUFFER_LENGTH];
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extern uint32_t audio_mute;
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extern int16_t pendingSamples;
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extern int16_t audiobuffer_emulator[AUDIO_BUFFER_LENGTH] __attribute__((section (".audio")));
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extern int16_t audiobuffer_dma[AUDIO_BUFFER_LENGTH * 2] __attribute__((section (".audio")));
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extern const uint8_t volume_tbl[ODROID_AUDIO_VOLUME_MAX + 1];
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bool common_emu_frame_loop(void);
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void common_emu_input_loop(odroid_gamepad_state_t *joystick, odroid_dialog_choice_t *game_options);
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typedef struct {
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uint last_busy;
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uint busy_ms;
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uint sleep_ms;
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} cpumon_stats_t;
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extern cpumon_stats_t cpumon_stats;
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/**
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* Just calls `__WFI()` and measures time spent sleeping.
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*/
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void cpumon_sleep(void);
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void cpumon_reset(void);
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/**
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* Holds common higher-level emu options that need to be used at not-neat
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* locations in each emulator.
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*
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* There should only be one of these objects instantiated.
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*/
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typedef struct {
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uint32_t last_sync_time;
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uint16_t skipped_frames;
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int16_t frame_time_10us;
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uint8_t skip_frames:1;
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uint8_t pause_frames:1;
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uint8_t pause_after_frames:3;
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uint8_t startup_frames:2;
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} common_emu_state_t;
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extern common_emu_state_t common_emu_state;
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