Feature/mcume

CMakeLists.txt

@@ -16,7 +16,7 @@ set(NES_COMPONENTS "nes")
 set(GBC_COMPONENTS "gbc")
 
 ### SMS ###
-# set(SMS_COMPONENTS "sms")
+set(SMS_COMPONENTS "sms")
 
 ### SNES ###
 # set(SNES_COMPONENTS "snes")

components/sms/CMakeLists.txt

@@ -0,0 +1,8 @@
+idf_component_register(
+ INCLUDE_DIRS "include"
+ SRC_DIRS "src" "teensysms"
+ PRIV_INCLUDE_DIRS "teensysms"
+ REQUIRES box-emu-hal
+ )
+# target_compile_options(${COMPONENT_LIB} PRIVATE -Wno-char-subscripts -Wno-attributes -Wno-implicit-fallthrough -Wno-unused-function -Wno-unused-variable -Wno-discarded-qualifiers)
+target_compile_options(${COMPONENT_LIB} PRIVATE -Wno-pointer-arith -Wno-int-conversion -Wno-parentheses)

components/sms/include/sms.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <string>
+#include <string_view>
+#include <vector>
+
+void reset_sms();
+void init_sms(uint8_t *romdata, size_t rom_data_size);
+void init_gg(uint8_t *romdata, size_t rom_data_size);
+void load_sms(std::string_view save_path);
+void save_sms(std::string_view save_path);
+void start_sms_tasks();
+void stop_sms_tasks();
+void run_sms_rom();
+void deinit_sms();
+void set_sms_video_original();
+void set_sms_video_fit();
+void set_sms_video_fill();
+std::vector<uint8_t> get_sms_video_buffer();
+
+extern "C" {
+void sms_pause_video_task();
+void sms_resume_video_task();
+void sms_pause_audio_task();
+void sms_resume_audio_task();
+}

components/sms/src/sms.cpp

@@ -0,0 +1,103 @@
+#include "sms.hpp"
+
+// include private sms headers
+extern "C" {
+#include "sms.h"
+#include "wrapemu.h"
+#include "vdp.h"
+}
+
+#include <string>
+
+#include "fs_init.hpp"
+#include "format.hpp"
+#include "spi_lcd.h"
+#include "st7789.hpp"
+
+static const int SMS_SCREEN_WIDTH = 256;
+static const int SMS_SCREEN_HEIGHT = 192;
+static const int SMS_VISIBLE_HEIGHT = 192;
+
+static std::atomic<bool> scaled = false;
+static std::atomic<bool> filled = true;
+
+void set_sms_video_original() {
+ scaled = false;
+ filled = false;
+}
+
+void set_sms_video_fit() {
+ scaled = true;
+ filled = false;
+}
+
+void set_sms_video_fill() {
+ scaled = false;
+ filled = true;
+}
+
+void reset_sms() {
+}
+
+void emu_DrawLinePal16(unsigned char * VBuf, int width, int height, int line) {
+ // TODO: implement
+}
+
+void init_sms(uint8_t *romdata, size_t rom_data_size) {
+ sms_Init();
+ sms.ram = (uint8_t*)get_vram0();
+ sms.sram= (uint8_t*)get_vram1();
+ sms.dummy = get_frame_buffer1();
+ vdp.vram = get_frame_buffer0();
+ sms_Start(romdata, rom_data_size);
+}
+
+void init_gg(uint8_t *romdata, size_t rom_data_size) {
+ sms_Init();
+ sms.ram = (uint8_t*)get_vram0();
+ sms.sram= (uint8_t*)get_vram1();
+ sms.dummy = get_frame_buffer1();
+ vdp.vram = get_frame_buffer0();
+ gg_Start(romdata, rom_data_size);
+}
+
+void run_sms_rom() {
+ auto start = std::chrono::high_resolution_clock::now();
+ sms_Step();
+ // frame rate should be 60 FPS, so 1/60th second is what we want to sleep for
+ auto delay = std::chrono::duration<float>(1.0f/60.0f);
+ std::this_thread::sleep_until(start + delay);
+}
+
+void load_sms(std::string_view save_path) {
+ // sms_prep_emulation((char *)save_path.data(), console_sms);
+}
+
+void save_sms(std::string_view save_path) {
+ // save_sram((char *)save_path.data(), console_sms);
+}
+
+std::vector<uint8_t> get_sms_video_buffer() {
+ std::vector<uint8_t> frame(SMS_SCREEN_WIDTH * SMS_VISIBLE_HEIGHT * 2);
+ // the frame data for the SMS is stored in frame_buffer0 as a 8 bit index into the palette
+ // we need to convert this to a 16 bit RGB565 value
+ // uint8_t *frame_buffer0 = get_frame_buffer0();
+ // uint16_t *palette = nullptr; // get_sms_palette();
+ // for (int i = 0; i < SMS_SCREEN_WIDTH * SMS_VISIBLE_HEIGHT; i++) {
+ // uint8_t index = frame_buffer0[i];
+ // uint16_t color = palette[index];
+ // frame[i * 2] = color & 0xFF;
+ // frame[i * 2 + 1] = color >> 8;
+ // }
+ return frame;
+}
+
+void stop_sms_tasks() {
+}
+
+void start_sms_tasks() {
+}
+
+void deinit_sms() {
+ sms_DeInit();
+}

components/sms/teensysms/AudioPlaySystem.cpp

@@ -0,0 +1,192 @@
+extern "C" {
+#include "emuapi.h" 
+}
+
+#include "AudioPlaySystem.h"
+#include "esp_system.h"
+
+#include "driver/i2s.h"
+#include "freertos/queue.h"
+#include "string.h"
+#define I2S_NUM ((i2s_port_t)0)
+
+volatile uint16_t *Buffer;
+volatile uint16_t BufferSize;
+
+
+static const short square[]={
+32767,32767,32767,32767,
+32767,32767,32767,32767,
+32767,32767,32767,32767,
+32767,32767,32767,32767,
+32767,32767,32767,32767,
+32767,32767,32767,32767,
+32767,32767,32767,32767,
+32767,32767,32767,32767,
+-32767,-32767,-32767,-32767,
+-32767,-32767,-32767,-32767,
+-32767,-32767,-32767,-32767,
+-32767,-32767,-32767,-32767,
+-32767,-32767,-32767,-32767,
+-32767,-32767,-32767,-32767,
+-32767,-32767,-32767,-32767,
+-32767,-32767,-32767,-32767,
+};
+
+const short noise[] {
+-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,
+-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,32767,-32767,
+-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,
+-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,-32767,32767,32767,-32767,
+-32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,-32767,-32767,32767,32767,-32767,
+-32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,-32767,32767,32767,32767,-32767,
+32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,-32767,32767,32767,32767,-32767,
+32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
+32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
+32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,-32767,32767,32767,32767,-32767,-32767,
+32767,-32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
+32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,32767,-32767,32767,32767,32767,-32767,-32767,
+32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
+32767,-32767,32767,-32767,-32767,32767,32767,-32767,32767,32767,-32767,32767,-32767,32767,-32767,-32767,
+32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
+32767,-32767,32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,32767,-32767,32767,-32767,-32767,
+};
+
+#define NOISEBSIZE 0x100
+
+typedef struct
+{
+ unsigned int spos;
+ unsigned int sinc;
+ unsigned int vol;
+} Channel;
+
+volatile bool playing = false;
+
+
+static Channel chan[6] = {
+ {0,0,0},
+ {0,0,0},
+ {0,0,0},
+ {0,0,0},
+ {0,0,0},
+ {0,0,0} };
+
+
+static void snd_Reset(void)
+{
+ chan[0].vol = 0;
+ chan[1].vol = 0;
+ chan[2].vol = 0;
+ chan[3].vol = 0;
+ chan[4].vol = 0;
+ chan[5].vol = 0;
+ chan[0].sinc = 0;
+ chan[1].sinc = 0;
+ chan[2].sinc = 0;
+ chan[3].sinc = 0;
+ chan[4].sinc = 0;
+ chan[5].sinc = 0;
+}
+
+#ifdef CUSTOM_SND 
+extern "C" {
+void SND_Process(void *sndbuffer, int sndn);
+}
+#endif
+
+
+static void snd_Mixer16(uint16_t * stream, int len )
+{
+ if (playing) 
+ {
+#ifdef CUSTOM_SND 
+ SND_Process((void*)stream, len);
+#else
+ int i;
+ long s; 
+ //len = len >> 1; 
+
+ short v0=chan[0].vol;
+ short v1=chan[1].vol;
+ short v2=chan[2].vol;
+ short v3=chan[3].vol;
+ short v4=chan[4].vol;
+ short v5=chan[5].vol;
+ for (i=0;i<len;i++)
+ {
+ s = ( v0*(square[(chan[0].spos>>8)&0x3f]) );
+ s+= ( v1*(square[(chan[1].spos>>8)&0x3f]) );
+ s+= ( v2*(square[(chan[2].spos>>8)&0x3f]) );
+ s+= ( v3*(noise[(chan[3].spos>>8)&(NOISEBSIZE-1)]) );
+ s+= ( v4*(noise[(chan[4].spos>>8)&(NOISEBSIZE-1)]) );
+ s+= ( v5*(noise[(chan[5].spos>>8)&(NOISEBSIZE-1)]) ); 
+ *stream++ = int16_t((s>>11)); 
+ chan[0].spos += chan[0].sinc;
+ chan[1].spos += chan[1].sinc;
+ chan[2].spos += chan[2].sinc;
+ chan[3].spos += chan[3].sinc; 
+ chan[4].spos += chan[4].sinc; 
+ chan[5].spos += chan[5].sinc; 
+ }
+#endif 
+ }
+}
+
+void AudioPlaySystem::begin(void)
+{
+}
+
+void AudioPlaySystem::start(void)
+{ 
+ playing = true; 
+}
+
+void AudioPlaySystem::setSampleParameters(float clockfreq, float samplerate) {
+}
+
+void AudioPlaySystem::reset(void)
+{
+ snd_Reset();
+}
+
+void AudioPlaySystem::stop(void)
+{
+ playing = false;
+}
+
+bool AudioPlaySystem::isPlaying(void) 
+{ 
+ return playing; 
+}
+
+
+void AudioPlaySystem::sound(int C, int F, int V) {
+ if (C < 6) {
+ //printf("play %d %d %d\n",C,F,V); 
+
+ chan[C].vol = V;
+ chan[C].sinc = F>>1; 
+ }
+}
+
+void AudioPlaySystem::step(void) 
+{
+ if (playing) {
+ int left=DEFAULT_SAMPLERATE/50;
+
+ while(left) {
+ int n=DEFAULT_SAMPLESIZE;
+ if (n>left) n=left;
+ snd_Mixer16((uint16_t*)Buffer, n);
+ //16 bit mono -> 16 bit r+l
+ for (int i=n-1; i>=0; i--) {
+ Buffer[i*2+1]=Buffer[i]+32767;
+ Buffer[i*2]=Buffer[i]+32767;
+ }
+ // TODO: update this to use hal
+ // i2s_write_bytes(I2S_NUM, (const void*)Buffer, n*4, portMAX_DELAY);
+ left-=n;
+ }
+ }
+}

components/sms/teensysms/AudioPlaySystem.h

@@ -0,0 +1,23 @@
+#ifndef audioplaysystem_h_
+#define audioplaysystem_h_
+
+#define DEFAULT_SAMPLESIZE 512 // 22050/50=443 samples per 20ms
+#define DEFAULT_SAMPLERATE 22050
+
+class AudioPlaySystem
+{
+public:
+AudioPlaySystem(void) { begin(); }
+ void begin(void);
+ void setSampleParameters(float clockfreq, float samplerate);
+ void reset(void);
+ void start(void);
+ void stop(void);
+ bool isPlaying(void);
+ void sound(int C, int F, int V); 
+ void buzz(int size, int val);
+ void step(void); 
+};
+
+
+#endif