#include "zx_128bankviewer.h"
#include "z80.h"
#include "z80mem.h"

void zx_128bankviewer::show()
{
    if (!win)
    {
        win = SDL_CreateWindow("Z80 Analyzer", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 128, 512, SDL_WINDOW_SHOWN);
        ren = SDL_CreateRenderer(win, -1, 0);
        tex = SDL_CreateTexture(ren, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, 128, 512);

        //ui::window::registerWindow(SDL_GetWindowID(win), handleEvent);
    }
    refresh();
}


void zx_128bankviewer::refresh()
{
        if (!win) return;

        Uint32 *pixels;
        int pitch;
        SDL_LockTexture(tex, NULL, (void**)&pixels, &pitch);
        for (int i=0; i<65536; ++i)
        {
            //uint8_t tag = z80::getMemTag(i);
            //pixels[i] = tag==MEMTAG_NONE ? 0x808080 : tag==MEMTAG_DATA ? 0x0000FF : tag==MEMTAG_MIXED ? 0xFF00FF : 0x00FF00;
            uint32_t none_color = i<0x4000 ? 0x101010 : i<0x5800 ? 0x202020 : i<0x5b00 ? 0x404040 : 0x808080;
            uint8_t tag = z80mem::get()->getTag(i);
            pixels[i] = !(tag & MEMTAG_TOUCHED) ? none_color : (tag & MEMTAG_TINST) ? 0x00FF00 : (tag & MEMTAG_TREPEAT) ? 0xFF0000 : 0x0000FF;
        }
        pixels[z80::getPC()] = 0xFFFFFF;

        SDL_UnlockTexture(tex);
        SDL_RenderCopy(ren, tex, NULL, NULL);
        SDL_RenderPresent(ren);
}

void zx_128bankviewer::hide()
{
    //ui::window::unregisterWindow(SDL_GetWindowID(win));
    SDL_DestroyTexture(tex); tex = nullptr;
    SDL_DestroyRenderer(ren); ren = nullptr;
    SDL_DestroyWindow(win); win = nullptr;
}

void zx_128bankviewer::focus()
{
    if (win) {
        SDL_RaiseWindow(win);
        refresh();
    }
}

bool zx_128bankviewer::handleEvent(SDL_Event *e)
{
    return true;
}