67 int render_cmd_build (render_t *ctx, struct render_cmd *cmd) {

    68    cmd->img_w = htonl(ctx->img_w);

    69    cmd->img_h = htonl(ctx->img_h);

    70    cmd->x1 = ctx->x1;

    71    cmd->y1 = ctx->y1;

    72    cmd->x2 = ctx->x2;

    73    cmd->y2 = ctx->y2;

    74 

    75    return RENDER_OK;

    76 }

    77