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* intended for use with Renesas products. No other uses are authorized. This
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* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
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* you agree to the additional terms and conditions found by accessing the
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* Copyright (C) 2019 Renesas Electronics Corporation. All rights reserved.
*******************************************************************************/
#include "sample_select.h"

#if (SAMPLE_PROGRAM_NO == 22)
// SAMPLE_PROGRAM_NO 22 : HDMI output & SSIF wav playback Sample
//
// Requirements
//   RZ/A2M Evaluation Board Kit : Display Output Board
//   SBEV-RZ/A2M                 : LVDS To HDMI Board
//   SEMB1402                    : LVDS To HDMI Board

#if defined(TARGET_SEMB1402) || defined(TARGET_RZ_A2M_SBEV)
#error "Audio is not supported."
#endif

#include "mbed.h"
#include "FATFileSystem.h"
#include "SdUsbConnect.h"
#include "EasyPlayback.h"
#include "EasyDec_WavCnv2ch.h"
#include "EasyAttach_CameraAndLCD.h"
#include "dcache-control.h"
#include "AsciiFont.h"

static EasyPlayback AudioPlayer;

#define FILE_NAME_LEN          (64)
#define MOUNT_NAME             "storage"

static InterruptIn skip_btn(USER_BUTTON0);

static void skip_btn_fall(void) {
    AudioPlayer.skip();
}

/*! Frame buffer stride: Frame buffer stride should be set to a multiple of 32 or 128
    in accordance with the frame buffer burst transfer mode. */
#define VIDEO_PIXEL_HW         (640)
#define VIDEO_PIXEL_VW         (480)

#define DATA_SIZE_PER_PIC      (1u)
#define FRAME_BUFFER_STRIDE    (((VIDEO_PIXEL_HW * DATA_SIZE_PER_PIC) + 31u) & ~31u)
#define FRAME_BUFFER_HEIGHT    (VIDEO_PIXEL_VW)

#define DRP_FLG_CAMER_IN       (0x00000100)

static DisplayBase Display;
static uint8_t fbuf_clat8[FRAME_BUFFER_STRIDE * FRAME_BUFFER_HEIGHT]__attribute((aligned(32)));
static uint8_t fbuf_overlay[FRAME_BUFFER_STRIDE * FRAME_BUFFER_HEIGHT]__attribute((section("NC_BSS"),aligned(32)));
static Thread drpTask(osPriorityHigh);
static Thread hdmiTask(osPriorityHigh);

static const uint32_t clut_data_resut[] = {0x00000000, 0xff00ff00};  // ARGB8888

static void IntCallbackFunc_Vfield(DisplayBase::int_type_t int_type) {
    drpTask.flags_set(DRP_FLG_CAMER_IN);
}

static void Start_LCD_Display(void) {
    DisplayBase::rect_t rect;
    DisplayBase::clut_t clut_param;

    rect.vs = 0;
    rect.vw = VIDEO_PIXEL_VW;
    rect.hs = 0;
    rect.hw = VIDEO_PIXEL_HW;
    Display.Graphics_Read_Setting(
        DisplayBase::GRAPHICS_LAYER_0,
        (void *)fbuf_clat8,
        FRAME_BUFFER_STRIDE,
        DisplayBase::GRAPHICS_FORMAT_CLUT8,
        DisplayBase::WR_RD_WRSWA_32_16_8BIT,
        &rect
    );
    Display.Graphics_Start(DisplayBase::GRAPHICS_LAYER_0);

    memset(fbuf_overlay, 0, sizeof(fbuf_overlay));
    clut_param.color_num = sizeof(clut_data_resut) / sizeof(uint32_t);
    clut_param.clut = clut_data_resut;

    rect.vs = 0;
    rect.vw = VIDEO_PIXEL_VW;
    rect.hs = 0;
    rect.hw = VIDEO_PIXEL_HW;
    Display.Graphics_Read_Setting(
        DisplayBase::GRAPHICS_LAYER_2,
        (void *)fbuf_overlay,
        FRAME_BUFFER_STRIDE,
        DisplayBase::GRAPHICS_FORMAT_CLUT8,
        DisplayBase::WR_RD_WRSWA_32_16_8BIT,
        &rect,
        &clut_param
    );
    Display.Graphics_Start(DisplayBase::GRAPHICS_LAYER_2);

    ThisThread::sleep_for(50);
    EasyAttach_LcdBacklight(true);
}

static void drp_task(void) {
    int i = 0;
    char str[64];

    AsciiFont ascii_font(fbuf_overlay, VIDEO_PIXEL_HW, VIDEO_PIXEL_VW, FRAME_BUFFER_STRIDE, DATA_SIZE_PER_PIC);

    EasyAttach_Init(Display);
    Start_LCD_Display();
    // Interrupt callback function setting (Field end signal for recording function in scaler 0)
    Display.Graphics_Irq_Handler_Set(DisplayBase::INT_TYPE_S0_VFIELD, 0, IntCallbackFunc_Vfield);

    while (true) {
        sprintf(str, "HDMI TEST %d", i);
        ascii_font.DrawStr(str, 5, 5 + (AsciiFont::CHAR_PIX_HEIGHT + 1) * 0, 1, 2);
        i++;
        ThisThread::sleep_for(1000);
    }
}

int main(void) {
    DIR  * d;
    struct dirent * p;
    char file_path[sizeof("/" MOUNT_NAME "/") + FILE_NAME_LEN];
    SdUsbConnect storage(MOUNT_NAME);

    // Start DRP task
    drpTask.start(callback(drp_task));

    // decoder setting
    AudioPlayer.add_decoder<EasyDec_WavCnv2ch>(".wav");
    AudioPlayer.add_decoder<EasyDec_WavCnv2ch>(".WAV");

    AudioPlayer.outputVolume(0.5);

    // button setting
    skip_btn.fall(&skip_btn_fall);

    while (1) {
        // connect wait
        storage.wait_connect();

        // file search
        d = opendir("/" MOUNT_NAME "/");
        if (d != NULL) {
            while ((p = readdir(d)) != NULL) {
                size_t len = strlen(p->d_name);
                if (len < FILE_NAME_LEN) {
                    // make file path
                    sprintf(file_path, "/%s/%s", MOUNT_NAME, p->d_name);
                    printf("%s\r\n", file_path);

                    // playback
                    AudioPlayer.play(file_path);
                }
            }
            closedir(d);
        }
    }
}

#endif