#include "u.h"
#include "lib.h"
#include "dat.h"
#include "fns.h"
//#include "error.h"

#include <draw.h>
#include <memdraw.h>
#include <keyboard.h>
#include <cursor.h>
#include "screen.h"

Memimage *gscreen;
extern int screenWidth;
extern int screenHeight;
char *snarfbuf = nil;

unsigned char*
screenData()
{
    int x, y, o;
    static unsigned char *ret = NULL;
    if (ret == NULL)
        ret = malloc(sizeof(unsigned char) * screenWidth * screenHeight * 4);
    if (gscreen != NULL && gscreen->data != NULL && gscreen->data->bdata != NULL)
        for (y = 0; y < screenHeight; y++)
            for (x = 0; x < screenWidth; x++) {
                o = (y * screenWidth + x) * 4;
                ret[o+0] = 0xFF;
                ret[o+1] = gscreen->data->bdata[o+2];
                ret[o+2] = gscreen->data->bdata[o+1];
                ret[o+3] = gscreen->data->bdata[o+0];
            }
    return ret;
}

void
setterm(int raw)
{
    return;
}

/**
 * TODO: android clipboard
 */
char*
clipread(void)
{
    return strdup(snarfbuf == nil? "": snarfbuf);
}

int
clipwrite(char *buf)
{
    if (snarfbuf != nil)
        free(snarfbuf);
    snarfbuf = strdup(buf);
    return 0;
}

void
setcolor(ulong i, ulong r, ulong g, ulong b)
{
    return;
}

void
getcolor(ulong v, ulong *r, ulong *g, ulong *b)
{
    *r = (v>>16)&0xFF;
    *g = (v>>8)&0xFF;
    *b = v&0xFF;
}

void
flushmemscreen(Rectangle r)
{
    return;
}

void
screeninit(void)
{
    memimageinit();
    gscreen = allocmemimage(Rect(0,0,screenWidth,screenHeight), XRGB32);
    terminit();
    return;
}

uchar*
attachscreen(Rectangle *r, ulong *chan, int *depth, int *width, int *softscreen)
{
    *r = gscreen->r;
    *depth = gscreen->depth;
    *chan = gscreen->chan;
    *width = gscreen->width;
    *softscreen = 0;
    return gscreen->data->bdata;
}

void
setcursor(void)
{
    return;
}

void
mouseset(Point xy)
{
    return;
}