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Merge 2a1390d into d4f2d5f 
2 parents d4f2d5f + 2a1390d commit cd7cdb6

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lines changed

‎CMakeLists.txt‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -16,7 +16,7 @@ set(NES_COMPONENTS "nes")
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set(GBC_COMPONENTS "gbc")
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### SMS ###
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# set(SMS_COMPONENTS "sms")
19+
set(SMS_COMPONENTS "sms")
2020

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### SNES ###
2222
# set(SNES_COMPONENTS "snes")

‎components/sms/CMakeLists.txt‎

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

‎components/sms/include/sms.hpp‎

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#pragma once
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#include <string>
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#include <string_view>
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#include <vector>
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void reset_sms();
8+
void init_sms(uint8_t *romdata, size_t rom_data_size);
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void init_gg(uint8_t *romdata, size_t rom_data_size);
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void load_sms(std::string_view save_path);
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void save_sms(std::string_view save_path);
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void start_sms_tasks();
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void stop_sms_tasks();
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void run_sms_rom();
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void deinit_sms();
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void set_sms_video_original();
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void set_sms_video_fit();
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void set_sms_video_fill();
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std::vector<uint8_t> get_sms_video_buffer();
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extern "C" {
22+
void sms_pause_video_task();
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void sms_resume_video_task();
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void sms_pause_audio_task();
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void sms_resume_audio_task();
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}

‎components/sms/src/sms.cpp‎

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@@ -0,0 +1,103 @@
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#include "sms.hpp"
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// include private sms headers
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extern "C" {
5+
#include "sms.h"
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#include "wrapemu.h"
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#include "vdp.h"
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}
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#include <string>
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#include "fs_init.hpp"
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#include "format.hpp"
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#include "spi_lcd.h"
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#include "st7789.hpp"
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static const int SMS_SCREEN_WIDTH = 256;
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static const int SMS_SCREEN_HEIGHT = 192;
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static const int SMS_VISIBLE_HEIGHT = 192;
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static std::atomic<bool> scaled = false;
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static std::atomic<bool> filled = true;
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void set_sms_video_original() {
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scaled = false;
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filled = false;
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}
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void set_sms_video_fit() {
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scaled = true;
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filled = false;
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}
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void set_sms_video_fill() {
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scaled = false;
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filled = true;
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}
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void reset_sms() {
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}
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void emu_DrawLinePal16(unsigned char * VBuf, int width, int height, int line) {
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// TODO: implement
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}
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void init_sms(uint8_t *romdata, size_t rom_data_size) {
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sms_Init();
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sms.ram = (uint8_t*)get_vram0();
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sms.sram= (uint8_t*)get_vram1();
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sms.dummy = get_frame_buffer1();
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vdp.vram = get_frame_buffer0();
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sms_Start(romdata, rom_data_size);
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}
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void init_gg(uint8_t *romdata, size_t rom_data_size) {
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sms_Init();
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sms.ram = (uint8_t*)get_vram0();
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sms.sram= (uint8_t*)get_vram1();
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sms.dummy = get_frame_buffer1();
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vdp.vram = get_frame_buffer0();
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gg_Start(romdata, rom_data_size);
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}
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void run_sms_rom() {
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auto start = std::chrono::high_resolution_clock::now();
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sms_Step();
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// frame rate should be 60 FPS, so 1/60th second is what we want to sleep for
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auto delay = std::chrono::duration<float>(1.0f/60.0f);
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std::this_thread::sleep_until(start + delay);
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}
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void load_sms(std::string_view save_path) {
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// sms_prep_emulation((char *)save_path.data(), console_sms);
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}
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void save_sms(std::string_view save_path) {
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// save_sram((char *)save_path.data(), console_sms);
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}
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std::vector<uint8_t> get_sms_video_buffer() {
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std::vector<uint8_t> frame(SMS_SCREEN_WIDTH * SMS_VISIBLE_HEIGHT * 2);
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// the frame data for the SMS is stored in frame_buffer0 as a 8 bit index into the palette
83+
// we need to convert this to a 16 bit RGB565 value
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// uint8_t *frame_buffer0 = get_frame_buffer0();
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// uint16_t *palette = nullptr; // get_sms_palette();
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// for (int i = 0; i < SMS_SCREEN_WIDTH * SMS_VISIBLE_HEIGHT; i++) {
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// uint8_t index = frame_buffer0[i];
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// uint16_t color = palette[index];
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// frame[i * 2] = color & 0xFF;
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// frame[i * 2 + 1] = color >> 8;
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// }
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return frame;
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}
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void stop_sms_tasks() {
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}
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void start_sms_tasks() {
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}
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void deinit_sms() {
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sms_DeInit();
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}

‎components/sms/teensysms/AudioPlaySystem.cpp‎

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extern "C" {
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#include "emuapi.h"
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}
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#include "AudioPlaySystem.h"
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#include "esp_system.h"
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#include "driver/i2s.h"
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#include "freertos/queue.h"
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#include "string.h"
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#define I2S_NUM ((i2s_port_t)0)
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volatile uint16_t *Buffer;
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volatile uint16_t BufferSize;
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static const short square[]={
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32767,32767,32767,32767,
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32767,32767,32767,32767,
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32767,32767,32767,32767,
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32767,32767,32767,32767,
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32767,32767,32767,32767,
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32767,32767,32767,32767,
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32767,32767,32767,32767,
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32767,32767,32767,32767,
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-32767,-32767,-32767,-32767,
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-32767,-32767,-32767,-32767,
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-32767,-32767,-32767,-32767,
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-32767,-32767,-32767,-32767,
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-32767,-32767,-32767,-32767,
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-32767,-32767,-32767,-32767,
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-32767,-32767,-32767,-32767,
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-32767,-32767,-32767,-32767,
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};
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const short noise[] {
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-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,
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-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,32767,-32767,
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-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,
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-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,32767,-32767,-32767,32767,32767,-32767,
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-32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,-32767,-32767,32767,32767,-32767,
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-32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,-32767,32767,32767,32767,-32767,
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32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,-32767,32767,32767,32767,-32767,
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32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
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32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
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32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,-32767,-32767,32767,32767,32767,-32767,-32767,
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32767,-32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
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32767,-32767,32767,-32767,-32767,32767,32767,-32767,-32767,32767,-32767,32767,32767,32767,-32767,-32767,
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32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
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32767,-32767,32767,-32767,-32767,32767,32767,-32767,32767,32767,-32767,32767,-32767,32767,-32767,-32767,
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32767,32767,-32767,-32767,-32767,32767,-32767,-32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,
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32767,-32767,32767,-32767,-32767,32767,32767,32767,32767,32767,-32767,32767,-32767,32767,-32767,-32767,
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};
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#define NOISEBSIZE 0x100
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typedef struct
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{
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unsigned int spos;
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unsigned int sinc;
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unsigned int vol;
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} Channel;
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volatile bool playing = false;
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static Channel chan[6] = {
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{0,0,0},
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{0,0,0},
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{0,0,0},
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{0,0,0},
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{0,0,0},
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{0,0,0} };
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static void snd_Reset(void)
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{
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chan[0].vol = 0;
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chan[1].vol = 0;
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chan[2].vol = 0;
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chan[3].vol = 0;
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chan[4].vol = 0;
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chan[5].vol = 0;
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chan[0].sinc = 0;
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chan[1].sinc = 0;
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chan[2].sinc = 0;
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chan[3].sinc = 0;
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chan[4].sinc = 0;
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chan[5].sinc = 0;
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}
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#ifdef CUSTOM_SND
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extern "C" {
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void SND_Process(void *sndbuffer, int sndn);
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}
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#endif
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static void snd_Mixer16(uint16_t * stream, int len )
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{
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if (playing)
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{
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#ifdef CUSTOM_SND
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SND_Process((void*)stream, len);
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#else
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int i;
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long s;
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//len = len >> 1;
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short v0=chan[0].vol;
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short v1=chan[1].vol;
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short v2=chan[2].vol;
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short v3=chan[3].vol;
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short v4=chan[4].vol;
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short v5=chan[5].vol;
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for (i=0;i<len;i++)
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{
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s = ( v0*(square[(chan[0].spos>>8)&0x3f]) );
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s+= ( v1*(square[(chan[1].spos>>8)&0x3f]) );
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s+= ( v2*(square[(chan[2].spos>>8)&0x3f]) );
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s+= ( v3*(noise[(chan[3].spos>>8)&(NOISEBSIZE-1)]) );
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s+= ( v4*(noise[(chan[4].spos>>8)&(NOISEBSIZE-1)]) );
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s+= ( v5*(noise[(chan[5].spos>>8)&(NOISEBSIZE-1)]) );
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*stream++ = int16_t((s>>11));
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chan[0].spos += chan[0].sinc;
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chan[1].spos += chan[1].sinc;
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chan[2].spos += chan[2].sinc;
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chan[3].spos += chan[3].sinc;
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chan[4].spos += chan[4].sinc;
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chan[5].spos += chan[5].sinc;
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}
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#endif
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}
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}
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void AudioPlaySystem::begin(void)
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{
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}
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void AudioPlaySystem::start(void)
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{
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playing = true;
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}
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void AudioPlaySystem::setSampleParameters(float clockfreq, float samplerate) {
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}
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void AudioPlaySystem::reset(void)
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{
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snd_Reset();
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}
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void AudioPlaySystem::stop(void)
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{
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playing = false;
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}
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bool AudioPlaySystem::isPlaying(void)
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{
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return playing;
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}
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void AudioPlaySystem::sound(int C, int F, int V) {
165+
if (C < 6) {
166+
//printf("play %d %d %d\n",C,F,V);
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chan[C].vol = V;
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chan[C].sinc = F>>1;
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}
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}
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void AudioPlaySystem::step(void)
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{
175+
if (playing) {
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int left=DEFAULT_SAMPLERATE/50;
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while(left) {
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int n=DEFAULT_SAMPLESIZE;
180+
if (n>left) n=left;
181+
snd_Mixer16((uint16_t*)Buffer, n);
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//16 bit mono -> 16 bit r+l
183+
for (int i=n-1; i>=0; i--) {
184+
Buffer[i*2+1]=Buffer[i]+32767;
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Buffer[i*2]=Buffer[i]+32767;
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}
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// TODO: update this to use hal
188+
// i2s_write_bytes(I2S_NUM, (const void*)Buffer, n*4, portMAX_DELAY);
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left-=n;
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}
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}
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}

‎components/sms/teensysms/AudioPlaySystem.h‎

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

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