#if 0
// #define DEBUG
#include "error.h"

#include <stdlib.h>
#include <string.h>
#include <spu_mfcio.h>
#include "DrawSpanRenew.h"
#include "polygon_pack.h"
#include "SpanPack.h"
#include "texture.h"
#include "viewer_types.h"
#include "Func.h"
#include "global_alloc.h"

#define SPAN_PACK_LOAD 0
#define TEX_LOAD 1
#define FB_STORE 2

SchedDefineTask(DrawSpanRenew);

void
DrawSpanRenew::reboot(SpanPackPtr spack, int cur_span_x)
{
    TaskPtr renew_task = smanager->create_task(TASK_DRAW_SPAN2);

    renew_task->add_param((int)args);

    SpanPackPtr curr = (SpanPackPtr)smanager->allocate(sizeof(SpanPack));
    memcpy(curr, spack, sizeof(SpanPack));
    renew_task->add_param((int)curr);
    renew_task->add_param(cur_span_x);

    // linebuf と zRow も引き継がせる
    renew_task->add_param((int)linebuf);
    renew_task->add_param((int)zRow);

    //fprintf(stderr, "[%p] start %u\n", curr, spu_readch(SPU_RdDec));

    /**
     * 再起動したタスクを待つ
     */
    smanager->wait_task(renew_task);

    // next_spack は free() するので wait する
    smanager->dma_wait(SPAN_PACK_LOAD);
}

int
DrawSpanRenew::run(SchedTask *s,void *rbuf, void *wbuf)
{
    __debug_spe("DrawSpanRenew\n");
    SpanPackPtr spack = (SpanPackPtr)smanager->get_param(1);
    SpanPackPtr next_spack = (SpanPackPtr)smanager->allocate(sizeof(SpanPack));
    SpanPackPtr free_spack1 = spack;
    SpanPackPtr free_spack2 = next_spack;
    Span *span;

    args = (DrawSpanArgPtr)smanager->get_param(0);
    uint32 display   = args->display;
    int screen_width = args->screen_width;
    int rangex_start = args->rangex_start;
    int rangex_end   = args->rangex_end;

    // このタスクが担当する x の範囲
    int rangex = rangex_end - rangex_start + 1;

    // y の範囲 (render_y + rangey - 1)
    int rangey = args->rangey;

    hash = (TileHashPtr)smanager->global_get(GLOBAL_TEXTURE_HASH);
    tileList = (TileListPtr)smanager->global_get(GLOBAL_TILE_LIST);

    linebuf = (int*)smanager->get_param(3);
    zRow = (float*)smanager->get_param(4);

    doneWrite = 0;

    // span->length_x の処理での再起動位置
    int js_cont = smanager->get_param(2);

    //fprintf(stderr, "[%p] end   %u\n", spack, spu_readch(SPU_RdDec));

    smanager->dma_wait(TEX_LOAD);

    do {
        /**
         * SpanPack->next が存在する場合、
         * 現在の SpanPack を処理してる間に
         * 次の SpanPack の DMA 転送を行う
         */
        if (spack->next != NULL) {
            smanager->dma_load(next_spack, (memaddr)spack->next,
                               sizeof(SpanPack), SPAN_PACK_LOAD);
        } else {
            next_spack = NULL;
        }

        for (int t = spack->info.start; t < spack->info.size; t++) {
            span = &spack->span[t];

            uint32 rgb = 0x00ff0000;
            float tex1 = span->tex_x1;
            float tex2 = span->tex_x2;
            float tey1 = span->tex_y1;
            float tey2 = span->tex_y2;

            /**
             * Span が持つ 1 pixel 毎の
             * テクスチャの座標
             */
            int tex_xpos;
            int tex_ypos;

            /**
             * (tex_xpos, tex_ypos) の、ブロック内(上の図参照)での座標と
             * そのブロックのアドレス(MainMemory)
             */
            int tex_localx;
            int tex_localy;
            memaddr tex_addr;

            int x = span->x;
            int y = span->y;
            int x_len = span->length_x;
            float z = span->start_z;
            float zpos = span->end_z;

            // 座標が [0 .. split_screen_w-1] に入るように x,y を -1
            int localx = getLocalX(x-1);
            int localy = getLocalY(y-1);

            if (x_len == 1) {
                if (x < rangex_start || rangex_end < x) {
                    continue;
                }

                tex_xpos = (int)((span->tex_width-1) * tex1);
                tex_ypos = (int)((span->tex_height-1) * tey1);

                if (zpos < zRow[localx + (rangex * localy)]) {
                    tex_addr = getTile(tex_xpos, tex_ypos,
                                       span->tex_width, (memaddr)span->tex_addr);
                    tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL;
                    tex_localy = tex_ypos % TEXTURE_SPLIT_PIXEL;

		    TilePtr tile = smanager->get_segment(tex_addr,tileList);
		    smanager->wait_segment(tile);

                    rgb = get_rgb(tex_localx, tex_localy, tile);

                    zRow[localx + (rangex*localy)] = zpos;
                    linebuf[localx + (rangex*localy)] = rgb;
                }
            } else {
                int js = (x < rangex_start) ? rangex_start - x : 0;
                int je = (x + x_len > rangex_end) ? rangex_end - x : x_len;
                float tex_x, tex_y, tex_z;

                /**
                 * 一回比較すれば、以後再起動するまでは
                 * js_cont は使わないから 0 にしてるわけだけど、
                 * 最初の一回のためだけにこれはめんどくさいのー。
                 */
                js = (js < js_cont) ? js_cont : js;
                js_cont = 0;

                for (int j = js; j <= je; j++) {
                    localx = getLocalX(x-1+j);

                    tex_z = z*(x_len-1-j)/(x_len-1) + zpos*j/(x_len-1);

                    tex_x = tex1*(x_len-1-j)/(x_len-1) + tex2*j/(x_len-1);
                    tex_y = tey1*(x_len-1-j)/(x_len-1) + tey2*j/(x_len-1);
                    if (tex_x > 1) tex_x = 1;
                    if (tex_x < 0) tex_x = 0;
                    if (tex_y > 1) tex_y = 1;
                    if (tex_y < 0) tex_y = 0;
                    tex_xpos = (int)((span->tex_width-1) * tex_x);
                    tex_ypos = (int)((span->tex_height-1) * tex_y);

                    if (tex_z < zRow[localx + (rangex*localy)]) {
                        tex_addr = getTile(tex_xpos, tex_ypos,
                                           span->tex_width, (memaddr)span->tex_addr);
                        tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL;
                        tex_localy = tex_ypos % TEXTURE_SPLIT_PIXEL;

			TilePtr tile = smanager->get_segment(tex_addr,tileList);
			smanager->wait_segment(tile);

                        rgb = get_rgb(tex_localx, tex_localy, tile);

                        zRow[localx + (rangex*localy)] = tex_z;
                        linebuf[localx + (rangex*localy)] = rgb;
                    }
                }
            }
        }

        smanager->dma_wait(SPAN_PACK_LOAD);

        SpanPackPtr tmp_spack = spack;
        spack = next_spack;
        next_spack = tmp_spack;
    } while (spack);

    writebuffer(display, rangex, rangey, screen_width);

    free(zRow);
    free(args);

    /**
     * linebuf, zRow, args は RenewTask が引き継ぐ
     */
    free(free_spack1);
    free(free_spack2);

    return 0;
}
#endif